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Ignition Coils & Spark Plugs Kits

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Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Pin Terminal A-Premium APIC0855
A-Premium®Part # APIC0855
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Pin Terminal A-Premium APIC0855
4.8781 Reviews
$142.99
$150.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2015 - 2018 GMC Yukon, 2015 - 2020 GMC Yukon XL, 2014 - 2019 Chevrolet Silverado 1500, 2016 - 2019 Cadillac CTS, 2021 - 2021 Chevrolet Express 2500, 2017 - 2021 Cadillac Escalade ESV, 2014 - 2019 Chevrolet Corvette, 2014 - 2019 Chevrolet Silverado 1500, 2014 - 2019 GMC Sierra 1500, 2018 - 2019 Chevrolet Tahoe, 2021 - 2021 Chevrolet Express 3500, 2022 - 2022 Chevrolet Silverado 1500, 2016 - 2021 Chevrolet Camaro, 2022 - 2022 GMC Sierra 1500, 2014 - 2019 GMC Sierra 1500, 2015 - 2019 GMC Yukon, 2015 - 2019 Chevrolet Suburban, 2015 - 2019 Chevrolet Tahoe, 2015 - 2022 Cadillac Escalade, 2015 - 2020 GMC Yukon XL
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
ColorBlack
item #100501Z5
Note
Square Coil, Using High-Performance Iridium Spark Plugs. Much better than Nickel and Platinum
Show less
Ignition Coils & Spark Plugs Kits Set of 12 Iridium Series, 4-Blade Terminal A-Premium APIC1393
A-Premium®Part # APIC1393
Ignition Coils & Spark Plugs Kits Set of 12 Iridium Series, 4-Blade Terminal A-Premium APIC1393
4.8781 Reviews
$130.99
$137.99
Quantity Less than 3
Edit ZIP code
2-year warranty
90 days free return
Fits 2021 - 2021 Cadillac XT5, 2018 - 2018 Buick LaCrosse, 2019 - 2019 Chevrolet Blazer, 2020 - 2020 Cadillac XT5, 2018 - 2020 Buick Regal Sportback, 2017 - 2017 Buick LaCrosse, 2022 - 2025 Chevrolet Blazer, 2019 - 2019 GMC Canyon, 2018 - 2018 GMC Canyon, 2019 - 2019 Buick LaCrosse, 2017 - 2017 GMC Canyon, 2020 - 2020 GMC Acadia, 2016 - 2021 Chevrolet Camaro, 2016 - 2020 Cadillac CT6, 2016 - 2019 Cadillac CTS, 2017 - 2018 Chevrolet Camaro, 2023 - 2023 Cadillac XT5, 2020 - 2020 Cadillac XT6, 2018 - 2019 Cadillac ATS, 2021 - 2021 Cadillac XT6, 2016 - 2018 Cadillac CT6, 2017 - 2022 Chevrolet Colorado, 2023 - 2023 Cadillac XT6, 2017 - 2019 Cadillac XT5, 2020 - 2021 Chevrolet Blazer, 2017 - 2019 GMC Acadia, 2017 - 2017 Cadillac ATS, 2016 - 2016 Cadillac ATS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity12
ColorBlue
ConditionNew
item #1015HDNA
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Ignition Coil and Spark Plug Kit Set of 16 Iridium & Platinum Series, 4-Pin Terminal A-Premium APIC1237
A-Premium®Part # APIC1237
Ignition Coil and Spark Plug Kit Set of 16 Iridium & Platinum Series, 4-Pin Terminal A-Premium APIC1237
4.8781 Reviews
$238.99
$251.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2019 - 2020 Cadillac CT6
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
ColorBlack
item #1002H12T
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Ignition Coil and Spark Plug Kit Set of 16 Double Iridium Series, 4-Blade Terminal A-Premium APIC1202
A-Premium®Part # APIC1202
Ignition Coil and Spark Plug Kit Set of 16 Double Iridium Series, 4-Blade Terminal A-Premium APIC1202
4.8781 Reviews
$154.99
$163.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2008 - 2008 Buick Allure, 2008 - 2009 Buick LaCrosse, 2004 - 2007 Buick Rainier, 2006 - 2007 Cadillac CTS, 2007 - 2014 Cadillac Escalade, 2009 - 2013 Cadillac Escalade, 2007 - 2014 Cadillac Escalade ESV, 2007 - 2013 Cadillac Escalade EXT, 2007 - 2013 Chevrolet Avalanche, 2007 - 2009 Chevrolet Avalanche, 2010 - 2011 Chevrolet Camaro, 2012 - 2013 Chevrolet Camaro, 2015 - 2015 Chevrolet Camaro, 2011 - 2017 Chevrolet Caprice, 2009 - 2012 Chevrolet Colorado, 2005 - 2007 Chevrolet Corvette, 2008 - 2013 Chevrolet Corvette, 2008 - 2014 Chevrolet Express 1500, 2008 - 2017 Chevrolet Express 2500, 2008 - 2010 Chevrolet Express 2500, 2014 - 2020 Chevrolet Express 2500, 2008 - 2017 Chevrolet Express 3500, 2008 - 2009 Chevrolet Express 3500, 2014 - 2020 Chevrolet Express 3500, 2009 - 2020 Chevrolet Express 4500, 2006 - 2009 Chevrolet Impala, 2007 - 2007 Chevrolet Monte Carlo, 2014 - 2017 Chevrolet SS, 2005 - 2006 Chevrolet SSR, 2007 - 2013 Chevrolet Silverado 1500, 2007 - 2013 Chevrolet Silverado 1500, 2008 - 2009 Chevrolet Silverado 1500, 2009 - 2013 Chevrolet Silverado 1500, 2008 - 2019 Chevrolet Silverado 2500 HD, 2008 - 2019 Chevrolet Silverado 3500 HD, 2007 - 2009 Chevrolet Suburban 1500, 2007 - 2014 Chevrolet Suburban 1500, 2007 - 2013 Chevrolet Suburban 2500, 2016 - 2018 Chevrolet Suburban 3500 HD, 2007 - 2014 Chevrolet Tahoe, 2006 - 2008 Chevrolet Trailblazer, 2006 - 2009 Chevrolet Trailblazer, 2005 - 2006 Chevrolet Trailblazer EXT, 2009 - 2012 GMC Canyon, 2005 - 2009 GMC Envoy, 2005 - 2006 GMC Envoy XL, 2005 - 2005 GMC Envoy XUV, 2008 - 2014 GMC Savana 1500, 2008 - 2017 GMC Savana 2500, 2008 - 2018 GMC Savana 2500, 2019 - 2019 GMC Savana 2500, 2020 - 2020 GMC Savana 2500, 2008 - 2017 GMC Savana 3500, 2008 - 2011 GMC Savana 3500, 2013 - 2018 GMC Savana 3500, 2019 - 2019 GMC Savana 3500, 2020 - 2020 GMC Savana 3500, 2009 - 2018 GMC Savana 4500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2009 GMC Sierra 1500, 2007 - 2007 GMC Sierra 1500 Classic, 2007 - 2007 GMC Sierra 1500 Classic, 2008 - 2019 GMC Sierra 2500 HD, 2008 - 2018 GMC Sierra 3500 HD, 2007 - 2008 GMC Yukon, 2007 - 2008 GMC Yukon, 2007 - 2008 GMC Yukon, 2009 - 2010 GMC Yukon, 2011 - 2011 GMC Yukon, 2011 - 2011 GMC Yukon, 2011 - 2011 GMC Yukon, 2012 - 2014 GMC Yukon, 2007 - 2008 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 1500, 2009 - 2010 GMC Yukon XL 1500, 2011 - 2011 GMC Yukon XL 1500, 2011 - 2011 GMC Yukon XL 1500, 2012 - 2013 GMC Yukon XL 1500, 2014 - 2014 GMC Yukon XL 1500, 2014 - 2014 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 2500, 2009 - 2010 GMC Yukon XL 2500, 2011 - 2011 GMC Yukon XL 2500, 2012 - 2012 GMC Yukon XL 2500, 2013 - 2013 GMC Yukon XL 2500, 2008 - 2009 Hummer H2, 2008 - 2010 Hummer H3, 2009 - 2010 Hummer H3T, 2005 - 2006 Isuzu Ascender, 2008 - 2009 Pontiac G8, 2009 - 2009 Pontiac G8, 2005 - 2008 Pontiac Grand Prix, 2005 - 2006 Pontiac GTO, 2005 - 2009 Saab 97X, 2008 - 2009 Saab 97X
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
item #1002H0ZX
Show less
Ignition Coil and Spark Plug Kit Set of 16 Double Iridium Series, 4-Blade Terminal A-Premium APIC1178
A-Premium®Part # APIC1178
Ignition Coil and Spark Plug Kit Set of 16 Double Iridium Series, 4-Blade Terminal A-Premium APIC1178
4.8781 Reviews
$175.99
$185.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2008 - 2008 Buick Allure, 2008 - 2009 Buick LaCrosse, 2004 - 2007 Buick Rainier, 2006 - 2007 Cadillac CTS, 2007 - 2014 Cadillac Escalade, 2009 - 2013 Cadillac Escalade, 2007 - 2014 Cadillac Escalade ESV, 2007 - 2013 Cadillac Escalade EXT, 2007 - 2013 Chevrolet Avalanche, 2007 - 2009 Chevrolet Avalanche, 2010 - 2011 Chevrolet Camaro, 2012 - 2013 Chevrolet Camaro, 2015 - 2015 Chevrolet Camaro, 2011 - 2017 Chevrolet Caprice, 2009 - 2012 Chevrolet Colorado, 2005 - 2007 Chevrolet Corvette, 2008 - 2013 Chevrolet Corvette, 2008 - 2014 Chevrolet Express 1500, 2008 - 2017 Chevrolet Express 2500, 2008 - 2010 Chevrolet Express 2500, 2014 - 2020 Chevrolet Express 2500, 2008 - 2017 Chevrolet Express 3500, 2008 - 2009 Chevrolet Express 3500, 2014 - 2020 Chevrolet Express 3500, 2009 - 2020 Chevrolet Express 4500, 2006 - 2009 Chevrolet Impala, 2007 - 2007 Chevrolet Monte Carlo, 2014 - 2017 Chevrolet SS, 2005 - 2006 Chevrolet SSR, 2007 - 2013 Chevrolet Silverado 1500, 2007 - 2013 Chevrolet Silverado 1500, 2008 - 2009 Chevrolet Silverado 1500, 2009 - 2013 Chevrolet Silverado 1500, 2008 - 2019 Chevrolet Silverado 2500 HD, 2008 - 2019 Chevrolet Silverado 3500 HD, 2007 - 2009 Chevrolet Suburban 1500, 2007 - 2014 Chevrolet Suburban 1500, 2007 - 2013 Chevrolet Suburban 2500, 2016 - 2018 Chevrolet Suburban 3500 HD, 2007 - 2014 Chevrolet Tahoe, 2006 - 2008 Chevrolet Trailblazer, 2006 - 2009 Chevrolet Trailblazer, 2005 - 2006 Chevrolet Trailblazer EXT, 2009 - 2012 GMC Canyon, 2005 - 2009 GMC Envoy, 2005 - 2006 GMC Envoy XL, 2005 - 2005 GMC Envoy XUV, 2008 - 2014 GMC Savana 1500, 2008 - 2017 GMC Savana 2500, 2008 - 2018 GMC Savana 2500, 2019 - 2019 GMC Savana 2500, 2020 - 2020 GMC Savana 2500, 2008 - 2017 GMC Savana 3500, 2008 - 2011 GMC Savana 3500, 2013 - 2018 GMC Savana 3500, 2019 - 2019 GMC Savana 3500, 2020 - 2020 GMC Savana 3500, 2009 - 2018 GMC Savana 4500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2009 GMC Sierra 1500, 2007 - 2007 GMC Sierra 1500 Classic, 2007 - 2007 GMC Sierra 1500 Classic, 2008 - 2019 GMC Sierra 2500 HD, 2008 - 2018 GMC Sierra 3500 HD, 2007 - 2008 GMC Yukon, 2007 - 2008 GMC Yukon, 2007 - 2008 GMC Yukon, 2009 - 2010 GMC Yukon, 2011 - 2011 GMC Yukon, 2011 - 2011 GMC Yukon, 2011 - 2011 GMC Yukon, 2012 - 2014 GMC Yukon, 2007 - 2008 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 1500, 2009 - 2010 GMC Yukon XL 1500, 2011 - 2011 GMC Yukon XL 1500, 2011 - 2011 GMC Yukon XL 1500, 2012 - 2013 GMC Yukon XL 1500, 2014 - 2014 GMC Yukon XL 1500, 2014 - 2014 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 2500, 2009 - 2010 GMC Yukon XL 2500, 2011 - 2011 GMC Yukon XL 2500, 2012 - 2012 GMC Yukon XL 2500, 2013 - 2013 GMC Yukon XL 2500, 2008 - 2009 Hummer H2, 2008 - 2010 Hummer H3, 2009 - 2010 Hummer H3T, 2005 - 2006 Isuzu Ascender, 2008 - 2009 Pontiac G8, 2009 - 2009 Pontiac G8, 2005 - 2008 Pontiac Grand Prix, 2005 - 2006 Pontiac GTO, 2005 - 2009 Saab 97X, 2008 - 2009 Saab 97X
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
item #1002HD76
Show less
Ignition Coil and Spark Plug Kit Set of 16 Double Iridium Series, 4-Blade Terminal A-Premium APIC1191
A-Premium®Part # APIC1191
Ignition Coil and Spark Plug Kit Set of 16 Double Iridium Series, 4-Blade Terminal A-Premium APIC1191
4.8781 Reviews
$158.99
$167.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2008 - 2008 Buick Allure, 2008 - 2009 Buick LaCrosse, 2004 - 2007 Buick Rainier, 2006 - 2007 Cadillac CTS, 2007 - 2014 Cadillac Escalade, 2009 - 2013 Cadillac Escalade, 2007 - 2014 Cadillac Escalade ESV, 2007 - 2013 Cadillac Escalade EXT, 2007 - 2013 Chevrolet Avalanche, 2007 - 2009 Chevrolet Avalanche, 2010 - 2011 Chevrolet Camaro, 2012 - 2015 Chevrolet Camaro, 2011 - 2017 Chevrolet Caprice, 2009 - 2012 Chevrolet Colorado, 2005 - 2007 Chevrolet Corvette, 2008 - 2013 Chevrolet Corvette, 2008 - 2014 Chevrolet Express 1500, 2008 - 2017 Chevrolet Express 2500, 2008 - 2020 Chevrolet Express 2500, 2008 - 2017 Chevrolet Express 3500, 2008 - 2020 Chevrolet Express 3500, 2009 - 2020 Chevrolet Express 4500, 2006 - 2009 Chevrolet Impala, 2007 - 2007 Chevrolet Monte Carlo, 2014 - 2017 Chevrolet SS, 2005 - 2006 Chevrolet SSR, 2007 - 2013 Chevrolet Silverado 1500, 2007 - 2013 Chevrolet Silverado 1500, 2008 - 2009 Chevrolet Silverado 1500, 2009 - 2013 Chevrolet Silverado 1500, 2007 - 2019 Chevrolet Silverado 2500 HD, 2008 - 2019 Chevrolet Silverado 3500 HD, 2007 - 2009 Chevrolet Suburban 1500, 2007 - 2014 Chevrolet Suburban 1500, 2007 - 2013 Chevrolet Suburban 2500, 2016 - 2018 Chevrolet Suburban 3500 HD, 2007 - 2014 Chevrolet Tahoe, 2006 - 2008 Chevrolet Trailblazer, 2006 - 2009 Chevrolet Trailblazer, 2005 - 2006 Chevrolet Trailblazer EXT, 2009 - 2012 GMC Canyon, 2005 - 2009 GMC Envoy, 2005 - 2006 GMC Envoy XL, 2005 - 2005 GMC Envoy XUV, 2008 - 2014 GMC Savana 1500, 2008 - 2017 GMC Savana 2500, 2008 - 2018 GMC Savana 2500, 2019 - 2019 GMC Savana 2500, 2020 - 2020 GMC Savana 2500, 2008 - 2017 GMC Savana 3500, 2008 - 2011 GMC Savana 3500, 2013 - 2018 GMC Savana 3500, 2019 - 2019 GMC Savana 3500, 2020 - 2020 GMC Savana 3500, 2009 - 2018 GMC Savana 4500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2009 GMC Sierra 1500, 2007 - 2007 GMC Sierra 1500 Classic, 2007 - 2007 GMC Sierra 1500 Classic, 2008 - 2019 GMC Sierra 2500 HD, 2008 - 2018 GMC Sierra 3500 HD, 2019 - 2019 GMC Sierra 3500 HD, 2007 - 2008 GMC Yukon, 2007 - 2008 GMC Yukon, 2007 - 2008 GMC Yukon, 2009 - 2010 GMC Yukon, 2011 - 2011 GMC Yukon, 2011 - 2011 GMC Yukon, 2011 - 2011 GMC Yukon, 2012 - 2014 GMC Yukon, 2007 - 2008 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 1500, 2009 - 2010 GMC Yukon XL 1500, 2011 - 2011 GMC Yukon XL 1500, 2011 - 2011 GMC Yukon XL 1500, 2012 - 2013 GMC Yukon XL 1500, 2014 - 2014 GMC Yukon XL 1500, 2014 - 2014 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 2500, 2009 - 2010 GMC Yukon XL 2500, 2011 - 2011 GMC Yukon XL 2500, 2012 - 2012 GMC Yukon XL 2500, 2013 - 2013 GMC Yukon XL 2500, 2008 - 2009 Hummer H2, 2008 - 2010 Hummer H3, 2009 - 2010 Hummer H3T, 2005 - 2006 Isuzu Ascender, 2008 - 2009 Pontiac G8, 2009 - 2009 Pontiac G8, 2005 - 2008 Pontiac Grand Prix, 2005 - 2006 Pontiac GTO, 2005 - 2009 Saab 97X, 2008 - 2009 Saab 97X
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
item #1002HDVY
Show less
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Pin Terminal A-Premium APIC0640
A-Premium®Part # APIC0640
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Pin Terminal A-Premium APIC0640
4.8781 Reviews
$141.99
$149.99
Quantity Less than 3
Edit ZIP code
2-year warranty
90 days free return
Fits 2004 - 2004 Pontiac GTO, 1998 - 2002 Pontiac Firebird, 1998 - 2002 Chevrolet Camaro, 1997 - 2004 Chevrolet Corvette, 2004 - 2004 Cadillac CTS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
ColorRed
item #1004RTU9
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Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Blade Terminal A-Premium APIC0592
A-Premium®Part # APIC0592
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Blade Terminal A-Premium APIC0592
4.8781 Reviews
$137.99
$145.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2009 - 2009 Buick Allure, 2009 - 2009 Buick LaCrosse, 2006 - 2007 Buick Rainier, 2006 - 2007 Cadillac CTS, 2009 - 2013 Cadillac Escalade, 2007 - 2014 Cadillac Escalade, 2007 - 2014 Cadillac Escalade ESV, 2007 - 2013 Cadillac Escalade EXT, 2009 - 2012 GMC Canyon, 2005 - 2009 GMC Envoy, 2005 - 2006 GMC Envoy XL, 2005 - 2005 GMC Envoy XUV, 2008 - 2014 GMC Savana 1500, 2008 - 2017 GMC Savana 2500, 2008 - 2019 GMC Savana 2500, 2008 - 2017 GMC Savana 3500, 2008 - 2011 GMC Savana 3500, 2009 - 2018 GMC Savana 4500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2007 GMC Sierra 1500 Classic, 2007 - 2007 GMC Sierra 1500 Classic, 2008 - 2019 GMC Sierra 2500 HD, 2008 - 2019 GMC Sierra 3500 HD, 2007 - 2009 GMC Yukon, 2007 - 2014 GMC Yukon, 2008 - 2013 GMC Yukon, 2007 - 2014 GMC Yukon, 2007 - 2014 GMC Yukon XL 1500, 2007 - 2009 GMC Yukon XL 1500, 2009 - 2014 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 1500, 2007 - 2013 GMC Yukon XL 2500, 2013 - 2019 GMC Savana 3500, 2008 - 2009 Hummer H2, 2008 - 2010 Hummer H3, 2009 - 2010 Hummer H3T, 2008 - 2009 Pontiac G8, 2009 - 2009 Pontiac G8, 2005 - 2008 Pontiac Grand Prix, 2005 - 2006 Pontiac GTO, 2005 - 2009 Saab 9-7x, 2008 - 2009 Saab 9-7x
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
Installation PositionFront
ColorBlack
item #1002ELH8
Note
This item comes with high-performance iridium spark plugs, much better than nickel and platinum spark plugs, and it only fits round coil, not square coil.
Show less
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Blade Terminal A-Premium APIC0817
A-Premium®Part # APIC0817
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Blade Terminal A-Premium APIC0817
4.8781 Reviews
$172.99
$182.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2007 - 2011 Buick Lucerne, 2007 - 2010 Cadillac STS, 2007 - 2009 Cadillac SRX, 2007 - 2009 Cadillac XLR, 2007 - 2011 Cadillac DTS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
ColorBlack
item #1005016S
Note
Using High-Performance Iridium Spark Plugs. Much better than Nickel and Platinum
Show less
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1201
A-Premium®Part # APIC1201
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1201
4.8781 Reviews
$130.99
$137.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2005 - 2008 Buick Allure, 2009 - 2009 Buick Enclave, 2005 - 2008 Buick LaCrosse, 2004 - 2006 Buick Rendezvous, 2004 - 2009 Cadillac CTS, 2005 - 2007 Cadillac CTS, 2004 - 2006 Cadillac SRX, 2005 - 2009 Cadillac STS, 2009 - 2009 Chevrolet Traverse, 2009 - 2009 GMC Acadia, 2009 - 2009 Saturn Outlook
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity12
ColorYellow
item #10025X1K
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Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Pin Terminal A-Premium APIC0847
A-Premium®Part # APIC0847
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Pin Terminal A-Premium APIC0847
4.8781 Reviews
$130.99
$137.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2015 - 2023 GMC Yukon XL, 2014 - 2018 Chevrolet Silverado 1500, 2019 - 2019 Chevrolet Silverado 1500 LD, 2020 - 2023 GMC Sierra 3500 HD, 2014 - 2018 GMC Sierra 1500, 2014 - 2019 Chevrolet Corvette, 2022 - 2023 Cadillac CT5, 2015 - 2023 GMC Yukon, 2019 - 2019 GMC Sierra 1500 Limited, 2016 - 2021 Chevrolet Camaro, 2019 - 2023 Chevrolet Silverado 1500, 2021 - 2023 GMC Savana 3500, 2015 - 2023 Cadillac Escalade ESV, 2015 - 2023 GMC Yukon XL, 2020 - 2023 GMC Sierra 2500 HD, 2022 - 2022 GMC Sierra 1500 Limited, 2021 - 2023 Chevrolet Express 3500, 2014 - 2018 GMC Sierra 1500, 2015 - 2023 Cadillac Escalade, 2021 - 2023 GMC Savana 2500, 2021 - 2023 Chevrolet Express 2500, 2016 - 2019 Cadillac CTS, 2018 - 2023 Chevrolet Tahoe, 2015 - 2023 GMC Yukon, 2022 - 2022 Chevrolet Silverado 1500 LTD, 2023 - 2023 Chevrolet Camaro, 2019 - 2023 GMC Sierra 1500, 2020 - 2023 Chevrolet Silverado 3500 HD, 2021 - 2021 GMC Savana 4500, 2021 - 2021 Chevrolet Express 4500, 2015 - 2023 Chevrolet Tahoe, 2019 - 2023 Chevrolet Suburban, 2019 - 2023 GMC Sierra 1500, 2022 - 2022 Chevrolet Silverado 1500 LTD, 2014 - 2018 Chevrolet Silverado 1500, 2020 - 2024 Chevrolet Silverado 2500 HD, 2019 - 2023 Chevrolet Silverado 1500, 2015 - 2023 Chevrolet Suburban
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
ColorBlack
item #1004TRLH
Show less
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1209
A-Premium®Part # APIC1209
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1209
4.8781 Reviews
$122.99
$129.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2010 - 2015 GMC Acadia, 2015 - 2016 GMC Canyon, 2017 - 2017 GMC Acadia Limited, 2012 - 2017 Chevrolet Caprice, 2010 - 2011 Cadillac STS, 2010 - 2016 Buick LaCrosse, 2012 - 2016 Cadillac SRX, 2010 - 2014 Cadillac CTS, 2010 - 2012 GMC Terrain, 2012 - 2020 Chevrolet Impala, 2010 - 2023 Chevrolet Traverse, 2010 - 2012 Chevrolet Malibu, 2014 - 2016 Chevrolet Impala Limited, 2010 - 2015 Chevrolet Camaro, 2010 - 2010 Saturn Vue, 2011 - 2011 Saab 9-4X, 2012 - 2012 Chevrolet Captiva Sport, 2010 - 2010 Saturn Outlook, 2013 - 2019 Cadillac XTS, 2013 - 2017 Chevrolet Equinox, 2010 - 2023 Buick Enclave, 2013 - 2017 GMC Terrain, 2015 - 2015 Cadillac CTS, 2010 - 2013 Cadillac CTS, 2015 - 2016 Chevrolet Colorado, 2010 - 2012 Chevrolet Equinox, 2010 - 2010 Buick LaCrosse, 2010 - 2011 Cadillac SRX, 2013 - 2015 Cadillac ATS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity12
ColorYellow
item #10025P72
Note
【Note-1】 Using High-Performance Iridium Spark Plugs. Much better than Nickel and Platinum.
【Note-2】 2012 Buick LaCrosse does not fit the CXS submodel.
Show less
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Blade Terminal A-Premium APIC0523
A-Premium®Part # APIC0523
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Blade Terminal A-Premium APIC0523
4.8781 Reviews
$139.99
$147.99
Quantity Less than 2
Edit ZIP code
2-year warranty
90 days free return
Fits 2004 - 2004 GMC Envoy XUV, 2001 - 2006 Chevrolet Silverado 3500, 2001 - 2006 GMC Yukon XL 1500, 2003 - 2004 Chevrolet SSR, 2003 - 2004 GMC Envoy XL, 2003 - 2005 GMC Savana 2500, 2003 - 2005 Chevrolet Express 2500, 2007 - 2007 GMC Sierra 3500 Classic, 2003 - 2005 GMC Sierra 1500, 2001 - 2002 GMC Sierra 3500, 2001 - 2003 GMC Sierra 1500 HD, 2003 - 2005 GMC Sierra 1500, 2003 - 2007 Chevrolet Express 2500, 2000 - 2006 Chevrolet Tahoe, 2003 - 2007 GMC Savana 3500, 1999 - 2004 Chevrolet Silverado 2500, 2003 - 2006 Chevrolet Suburban 1500, 2003 - 2006 Cadillac Escalade ESV, 1999 - 2000 GMC Sierra 2500, 2000 - 2002 Chevrolet Suburban 1500, 2001 - 2003 Chevrolet Silverado 1500 HD, 2002 - 2006 Chevrolet Avalanche 1500, 2002 - 2006 Cadillac Escalade EXT, 2007 - 2007 Chevrolet Silverado 3500 Classic, 2002 - 2006 Cadillac Escalade, 2003 - 2004 Isuzu Ascender, 2000 - 2006 Chevrolet Suburban 2500, 2007 - 2007 Chevrolet Silverado 1500 Classic, 2004 - 2007 Chevrolet Express 3500, 2003 - 2007 GMC Savana 2500, 2000 - 2006 GMC Yukon XL 2500, 2000 - 2006 Chevrolet Tahoe, 2001 - 2001 GMC Sierra 1500, 2003 - 2007 GMC Savana 1500, 2003 - 2007 Chevrolet Express 2500, 1999 - 2004 GMC Sierra 2500, 2003 - 2007 Chevrolet Express 1500, 2003 - 2007 GMC Savana 3500, 2004 - 2005 Buick Rainier, 2001 - 2006 Chevrolet Silverado 2500 HD, 1999 - 2006 Chevrolet Silverado 1500, 2000 - 2006 GMC Yukon, 2003 - 2007 Chevrolet Express 3500, 2000 - 2006 GMC Yukon XL 1500, 2007 - 2007 GMC Sierra 1500 HD Classic, 1999 - 2000 Chevrolet Silverado 2500, 2003 - 2006 Chevrolet Silverado 1500, 2003 - 2007 GMC Savana 2500, 2007 - 2007 Chevrolet Silverado 3500 HD, 2005 - 2006 GMC Sierra 1500 HD, 2003 - 2003 GMC Sierra 3500, 2003 - 2007 Hummer H2, 2007 - 2007 Chevrolet Silverado 2500 HD Classic, 2001 - 2006 GMC Yukon, 2005 - 2006 Chevrolet Silverado 1500 HD, 1999 - 2006 GMC Sierra 1500, 2001 - 2007 GMC Sierra 2500 HD, 2007 - 2007 GMC Sierra 2500 HD Classic, 2004 - 2006 GMC Sierra 3500, 2007 - 2007 GMC Sierra 1500 Classic, 2007 - 2007 Chevrolet Silverado 1500 HD Classic, 2006 - 2006 Chevrolet Monte Carlo, 1999 - 2001 GMC Sierra 1500, 2007 - 2007 GMC Sierra 3500 HD, 2003 - 2004 Chevrolet Trailblazer EXT, 2007 - 2007 Chevrolet Silverado 1500 Classic, 1999 - 2006 Chevrolet Silverado 1500, 2007 - 2007 Chevrolet Silverado 1500 Classic, 2000 - 2006 GMC Yukon
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
Installation PositionFront
ColorBlack
item #1002DTH5
Note
【Note-1】 This item comes with high-performance iridium spark plugs, much better than nickel and platinum spark plugs, and it only fits round coil, not square coil.
【Note-2】 This item comes with 4 Blade connector.Please double check it before your purchase.
Show less
Ignition Coil and Spark Plug Kit Set of 12 Iridium Series, 4-Blade Terminal A-Premium APIC0651
A-Premium®Part # APIC0651
Ignition Coil and Spark Plug Kit Set of 12 Iridium Series, 4-Blade Terminal A-Premium APIC0651
4.8781 Reviews
$108.99
$114.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2004 - 2006 Cadillac SRX, 2009 - 2009 Buick Enclave, 2009 - 2009 GMC Acadia, 2005 - 2009 Cadillac STS, 2005 - 2008 Buick Allure, 2004 - 2009 Cadillac CTS, 2004 - 2006 Buick Rendezvous, 2009 - 2009 Saturn Outlook, 2009 - 2009 Chevrolet Traverse, 2005 - 2007 Cadillac CTS, 2005 - 2008 Buick LaCrosse
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity12
ColorBlack
item #1004RSWZ
Show less
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Pin Terminal A-Premium APIC0639
A-Premium®Part # APIC0639
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Pin Terminal A-Premium APIC0639
4.8781 Reviews
$144.99
$152.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2004-2004 Pontiac GTO, 1998-2002 Pontiac Firebird, 1998-2002 Chevrolet Camaro, 1997-2004 Chevrolet Corvette, 2004-2004 Cadillac CTS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
ColorBlack
item #1004RSCN
Show less
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Blade Terminal A-Premium APIC0593
A-Premium®Part # APIC0593
Ignition Coil and Spark Plug Kit Set of 16 Iridium Series, 4-Blade Terminal A-Premium APIC0593
4.8781 Reviews
$150.99
$158.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2009 - 2009 Buick Allure, 2009 - 2009 Buick LaCrosse, 2006 - 2007 Buick Rainier, 2006 - 2007 Cadillac CTS, 2009 - 2013 Cadillac Escalade, 2007 - 2014 Cadillac Escalade, 2007 - 2014 Cadillac Escalade ESV, 2007 - 2013 Cadillac Escalade EXT, 2009 - 2012 GMC Canyon, 2005 - 2009 GMC Envoy, 2005 - 2006 GMC Envoy XL, 2005 - 2005 GMC Envoy XUV, 2008 - 2014 GMC Savana 1500, 2008 - 2017 GMC Savana 2500, 2008 - 2019 GMC Savana 2500, 2008 - 2017 GMC Savana 3500, 2008 - 2011 GMC Savana 3500, 2009 - 2018 GMC Savana 4500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2013 GMC Sierra 1500, 2007 - 2007 GMC Sierra 1500 Classic, 2007 - 2007 GMC Sierra 1500 Classic, 2008 - 2019 GMC Sierra 2500 HD, 2008 - 2019 GMC Sierra 3500 HD, 2007 - 2009 GMC Yukon, 2007 - 2014 GMC Yukon, 2008 - 2013 GMC Yukon, 2007 - 2014 GMC Yukon, 2007 - 2014 GMC Yukon XL 1500, 2007 - 2009 GMC Yukon XL 1500, 2009 - 2014 GMC Yukon XL 1500, 2007 - 2008 GMC Yukon XL 1500, 2007 - 2013 GMC Yukon XL 2500, 2013 - 2019 GMC Savana 3500, 2008 - 2009 Hummer H2, 2008 - 2010 Hummer H3, 2009 - 2010 Hummer H3T, 2008 - 2009 Pontiac G8, 2009 - 2009 Pontiac G8, 2005 - 2008 Pontiac Grand Prix, 2005 - 2006 Pontiac GTO, 2005 - 2009 Saab 9-7x, 2008 - 2009 Saab 9-7x
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity16
Installation PositionFront
ColorBlue
item #1002ENKC
Note
This item comes with high-performance iridium spark plugs, much better than nickel and platinum spark plugs, and it only fits round coil, not square coil.
Show less
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1103
A-Premium®Part # APIC1103
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1103
4.8781 Reviews
$117.99
$124.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2010 - 2015 GMC Acadia, 2015 - 2016 GMC Canyon, 2017 - 2017 GMC Acadia Limited, 2012 - 2017 Chevrolet Caprice, 2010 - 2011 Cadillac STS, 2010 - 2016 Buick LaCrosse, 2012 - 2016 Cadillac SRX, 2010 - 2014 Cadillac CTS, 2010 - 2012 GMC Terrain, 2012 - 2020 Chevrolet Impala, 2010 - 2023 Chevrolet Traverse, 2010 - 2012 Chevrolet Malibu, 2014 - 2016 Chevrolet Impala Limited, 2010 - 2015 Chevrolet Camaro, 2010 - 2010 Saturn Vue, 2011 - 2011 Saab 9-4X, 2012 - 2012 Chevrolet Captiva Sport, 2010 - 2010 Saturn Outlook, 2013 - 2019 Cadillac XTS, 2013 - 2017 Chevrolet Equinox, 2010 - 2023 Buick Enclave, 2013 - 2017 GMC Terrain, 2015 - 2015 Cadillac CTS, 2010 - 2013 Cadillac CTS, 2015 - 2016 Chevrolet Colorado, 2010 - 2012 Chevrolet Equinox, 2010 - 2010 Buick LaCrosse, 2010 - 2011 Cadillac SRX, 2013 - 2015 Cadillac ATS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity12
ColorBlue
item #10025L2X
Note
【Note-1】 Using High-Performance Iridium Spark Plugs. Much better than Nickel and Platinum.
【Note-2】 2012 Buick LaCrosse does not fit the CXS submodel.
Show less
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1189
A-Premium®Part # APIC1189
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1189
4.8781 Reviews
$120.99
$127.99
Quantity Less than 5
Edit ZIP code
2-year warranty
90 days free return
Fits 2005 - 2008 Buick Allure, 2009 - 2009 Buick Enclave, 2005 - 2008 Buick LaCrosse, 2004 - 2006 Buick Rendezvous, 2004 - 2009 Cadillac CTS, 2005 - 2007 Cadillac CTS, 2004 - 2006 Cadillac SRX, 2005 - 2009 Cadillac STS, 2009 - 2009 Chevrolet Traverse, 2009 - 2009 GMC Acadia, 2009 - 2009 Saturn Outlook
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity12
ColorRed
item #1002H40R
Show less
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1116
A-Premium®Part # APIC1116
Ignition Coil and Spark Plug Kit Set of 12 Iridium & Platinum Series, 4-Blade Terminal A-Premium APIC1116
4.8781 Reviews
$124.99
$131.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2010 - 2015 GMC Acadia, 2015 - 2016 GMC Canyon, 2017 - 2017 GMC Acadia Limited, 2012 - 2017 Chevrolet Caprice, 2010 - 2011 Cadillac STS, 2010 - 2016 Buick LaCrosse, 2012 - 2016 Cadillac SRX, 2010 - 2014 Cadillac CTS, 2010 - 2012 GMC Terrain, 2012 - 2020 Chevrolet Impala, 2010 - 2023 Chevrolet Traverse, 2010 - 2012 Chevrolet Malibu, 2014 - 2016 Chevrolet Impala Limited, 2010 - 2015 Chevrolet Camaro, 2010 - 2010 Saturn Vue, 2011 - 2011 Saab 9-4X, 2012 - 2012 Chevrolet Captiva Sport, 2010 - 2010 Saturn Outlook, 2013 - 2019 Cadillac XTS, 2013 - 2017 Chevrolet Equinox, 2010 - 2023 Buick Enclave, 2013 - 2017 GMC Terrain, 2015 - 2015 Cadillac CTS, 2010 - 2013 Cadillac CTS, 2015 - 2016 Chevrolet Colorado, 2010 - 2012 Chevrolet Equinox, 2010 - 2010 Buick LaCrosse, 2010 - 2011 Cadillac SRX, 2013 - 2015 Cadillac ATS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity12
ColorRed
item #10025R82
Note
【Note-1】 Using High-Performance Iridium Spark Plugs. Much better than Nickel and Platinum.
【Note-2】 2012 Buick LaCrosse does not fit the CXS submodel.
Show less
Ignition Coil and Spark Plug Kit Set of 9 Iridium & Platinum Series, 3-Blade Terminal A-Premium APIC0965
A-Premium®Part # APIC0965
Ignition Coil and Spark Plug Kit Set of 9 Iridium & Platinum Series, 3-Blade Terminal A-Premium APIC0965
4.8781 Reviews
$71.99
$75.99
Quantity Less than 3
Edit ZIP code
2-year warranty
90 days free return
Fits 1996 - 1996 Buick Commercial Chassis, 1996 - 1996 Buick Roadmaster, 1996 - 1996 Cadillac Commercial Chassis, 1999 - 2000 Cadillac Escalade, 1996 - 1996 Cadillac Fleetwood, 1999 - 1999 Chevrolet C1500, 1996 - 1998 Chevrolet C1500, 1999 - 1999 Chevrolet C1500, 1996 - 1998 Chevrolet C1500, 1996 - 1999 Chevrolet C1500 Suburban, 1996 - 1999 Chevrolet C2500, 1998 - 2000 Chevrolet C2500, 1996 - 2000 Chevrolet C2500, 1996 - 2000 Chevrolet C2500, 1997 - 1999 Chevrolet C2500 Suburban, 1996 - 1996 Chevrolet C2500 Suburban, 1997 - 1999 Chevrolet C2500 Suburban, 1997 - 1999 Chevrolet C3500, 1996 - 2000 Chevrolet C3500, 1996 - 2000 Chevrolet C3500, 1996 - 1997 Chevrolet Camaro, 1996 - 1996 Chevrolet Caprice, 1996 - 1996 Chevrolet Caprice, 1996 - 1996 Chevrolet Corvette, 1996 - 2002 Chevrolet Express 1500, 1996 - 2002 Chevrolet Express 1500, 1996 - 2002 Chevrolet Express 2500, 2001 - 2001 Chevrolet Express 2500, 1996 - 2002 Chevrolet Express 2500, 1996 - 1996 Chevrolet Express 3500, 1997 - 2000 Chevrolet Express 3500, 1997 - 2000 Chevrolet Express 3500, 2001 - 2002 Chevrolet Express 3500, 1996 - 1996 Chevrolet Impala, 1996 - 1999 Chevrolet K1500, 1996 - 1999 Chevrolet K1500, 1996 - 1999 Chevrolet K1500 Suburban, 1997 - 1998 Chevrolet K2500, 1996 - 2000 Chevrolet K2500, 1996 - 2000 Chevrolet K2500, 1996 - 1999 Chevrolet K2500 Suburban, 1996 - 1999 Chevrolet Suburban, 1996 - 2000 Chevrolet K3500, 1996 - 2000 Chevrolet K3500, 1997 - 1999 Chevrolet P30, 1996 - 1996 Chevrolet P30, 1997 - 1997 Chevrolet P30, 1999 - 1999 Chevrolet P30, 2000 - 2000 Chevrolet Tahoe, 1996 - 1999 Chevrolet Tahoe
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Item LocatedUnited States
Quantity9
ColorBlack
item #1005KGWA
Note
Using High-Performance Iridium Spark Plugs. Much better than Nickel and Platinum.
Show less
Page 1 of 3

Advantages of using an ignition coils and spark plugs kit

An ignition coils and spark plugs kit is a package that typically includes both ignition coils and spark plugs. An ignition coil and spark plug kit is often mentioned and sold together because these components work closely together in the ignition system. Advantages of using an ignition coils and spark plugs kit include:

  1. Improved Performance: Enhances engine performance, throttle response, and power output.
  2. Fuel Efficiency: Increases fuel efficiency and potentially improves gas mileage.
  3. Emission Reduction: This leads to cleaner combustion, reducing emissions.
  4. Smooth Idling: Promotes smoother and stable idling.
  5. Reliability: Enhances overall ignition system reliability.
  6. Simplified Maintenance: Convenient package with all necessary components.
  7. Optimal Timing: Maintains proper ignition timing.
  8. Consistency: Ensures consistent ignition across all cylinders.
  9. Extended Component Life: This can potentially prolong the life of coils and spark plugs.
  10. Cost-Effective: Often more cost-effective than buying components individually.

Should I replace ignition coils with spark plugs?

Replacing ignition coils along with spark plugs is not always necessary, but it can be a wise decision in certain situations:

  • Mileage and age: Consider replacement if your vehicle has high mileage or the ignition coils are old to maintain optimal performance.
  • Maintenance schedule: Refer to your vehicle's maintenance schedule for recommended replacement intervals.
  • Symptoms: If you experience issues like misfires, rough idling, reduced power, or poor fuel efficiency, consider inspecting and potentially replacing both components.
  • Efficiency and reliability: Simultaneous replacement can ensure consistent ignition timing, enhance reliability, and improve efficiency.
  • Cost consideration: Evaluate the condition of the components; if ignition coils are relatively new, you may replace only spark plugs.
  • Diagnostic testing: Consider diagnostic testing to assess the condition of ignition coils for an informed decision.