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BMW Ignition Coil

109 items

Shop precise fit replacement Ignition Coil to maintain and improve your vehicle's performance. Find the right parts for your make and model, backed by excellent customer service at A-Premium.

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Spectra Premium C-994 Ignition CoilSpectra Premium C-994 Ignition Coil
Spectra PremiumPart # C-994
Spectra Premium C-994 Ignition Coil
52 Reviews
$55.99
Low stock: Only 1 left
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3-year warranty
90 days free return
Fits 2006-2010 BMW M5, 2006-2011 BMW M6
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Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
C-994, U5211, UF572, CE189, GN10563, C1643, 5C1700, 20631, 
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item #1000Z70L
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Walker Products 921-2275 Ignition Coil
Walker ProductsPart # 921-2275
Walker Products 921-2275 Ignition Coil
4.329 Reviews
$32.99
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3-year warranty
90 days free return
Fits 2006-2006 BMW 325i, 2006-2006 BMW 325xi, 2006-2006 BMW 330i, 2006-2006 BMW 330xi, 2006-2006 BMW 525i, 2006-2006 BMW 525xi, 2006-2006 BMW 530i, 2006-2006 BMW 530xi, 2006-2006 BMW Z4, 2006-2006 BMW Z4, 2006-2006 BMW Z4, 2007-2007 BMW 525i, 2007-2007 BMW 525xi, 2007-2007 BMW 530i, 2007-2007 BMW 530xi, 2007-2008 BMW 328xi, 2007-2008 BMW Z4, 2007-2010 BMW X3, 2007-2011 BMW 328i, 2009-2012 BMW 328i xDrive
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Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
921-2275, 48705, 48888, 880338A, 85.30252, 12846, 10528, 155191, 
...View more
item #1001L3Q6
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Walker Products 921-2111 Ignition Coil
Walker ProductsPart # 921-2111
Walker Products 921-2111 Ignition Coil
4.329 Reviews
$35.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2006-2006 BMW 325i, 2006-2006 BMW 325xi, 2006-2006 BMW 330i, 2006-2006 BMW 330xi, 2006-2006 BMW 525i, 2006-2006 BMW 525xi, 2006-2006 BMW 530i, 2006-2006 BMW 530xi, 2006-2006 BMW Z4, 2006-2006 BMW Z4, 2006-2006 BMW Z4, 2007-2007 BMW 335xi, 2007-2007 BMW 525i, 2007-2007 BMW 525xi, 2007-2007 BMW 530i, 2007-2007 BMW 530xi, 2007-2008 BMW 328xi, 2007-2008 BMW Z4, 2007-2009 BMW X5, 2007-2010 BMW X3
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
921-2111, 50170, IC-791, GN10328, 12138647689, 12846, C806, C-806, 
...View more
item #1001L5RY
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Spectra Premium C-654 Ignition Coil
Spectra PremiumPart # C-654
Spectra Premium C-654 Ignition Coil
52 Reviews
$29.99
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3-year warranty
90 days free return
Fits 1960-1963 Alfa Romeo Giulietta, 1967-1968 Alfa Romeo Duetto 1600, 1969-1971 Alfa Romeo GT Veloce, 1970-1977 Alfa Romeo Spider, 1972-1972 Alfa Romeo Berlina, 1957-1958 Austin Healey 100-6, 1958-1965 Austin Healey Sprite, 1959-1967 Austin Healey 3000, 1967-1970 Austin Healey Sprite, 1966-1966 BMW 2000, 1966-1966 BMW 2000c, 1966-1966 BMW 2000cs, 1966-1966 BMW 2000ti, 1966-1969 BMW 1600, 1967-1967 BMW 2000, 1967-1967 BMW 2000c, 1967-1967 BMW 2000cs, 1967-1967 BMW 2000ti, 1967-1968 BMW 2002, 1968-1968 BMW 2002ti
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
C-654, CUF3, CUC15, UF7, UF3, UF3T, 12337168, 9091902015, 
...View more
item #1000Z3R8
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Spectra Premium C-660 Ignition Coil
Spectra PremiumPart # C-660
Spectra Premium C-660 Ignition Coil
52 Reviews
$28.99
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3-year warranty
90 days free return
Fits 1952-1953 Allstate A-230, 1952-1953 Allstate A-240, 1961-1963 BMW 2600, 1966-1966 BMW 2002, 1967-1967 BMW 1800ti, 1967-1967 BMW 2000, 1967-1967 BMW 2000c, 1967-1967 BMW 2000cs, 1967-1967 BMW 2000ti, 1967-1968 BMW 1800, 1967-1968 BMW 2002, 1967-1969 BMW 1600, 1968-1968 BMW 2002ti, 1952-1955 Borgward Hansa 2400, 1954-1955 Borgward Hansa 1500, 1954-1961 Borgward Isabella, 1950-1952 Buick Roadmaster, 1950-1952 Buick Special, 1950-1952 Buick Super, 1950-1951 Cadillac Series 61
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
C-660, CUC14, 521902, U1097, DG2, J912010, JA001424, 200577, 
...View more
item #1000Z55U
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Walker Products 921-2070 Ignition Coil
Walker ProductsPart # 921-2070
Walker Products 921-2070 Ignition Coil
4.329 Reviews
$46.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1995-1996 BMW 750iL, 1995-1997 BMW 850Ci, 1996-1997 BMW 840Ci, 1996-1999 BMW 328is, 1996-1999 BMW M3, 1996-2000 BMW 328i, 1996-2001 BMW 740iL, 1997-1998 BMW Z3, 1997-2000 BMW 528i, 1997-2001 BMW 323i, 1997-2001 BMW 740i, 1997-2001 BMW 750iL, 1997-2003 BMW 540i, 1998-1998 BMW Z3, 1998-1999 BMW 323is, 1999-2000 BMW Z3, 1999-2000 BMW Z3, 1999-2002 BMW Z3, 2000-2000 BMW 323Ci, 2000-2000 BMW 328Ci
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
921-2070, 50019, 50119, IC-86, IC-87, 2910000408900, 8010454, 8010454E, 
...View more
item #1001L3Q9
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Spectra Premium C-694 Ignition Coil
Spectra PremiumPart # C-694
Spectra Premium C-694 Ignition Coil
52 Reviews
$53.99
Low stock: Only 2 left
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3-year warranty
90 days free return
Fits 2001-2002 BMW 325Ci, 2001-2002 BMW 325i, 2001-2002 BMW 325xi, 2001-2002 BMW Z3, 2002-2005 BMW 745Li, 2002-2005 BMW 745i, 2002-2006 BMW M3, 2003-2003 BMW X5, 2003-2004 BMW 530i, 2003-2005 BMW 325i, 2003-2005 BMW 325xi, 2003-2005 BMW 330i, 2003-2005 BMW 330xi, 2003-2005 BMW 525i, 2003-2005 BMW Z4, 2003-2006 BMW 330Ci, 2003-2008 BMW 760Li, 2004-2005 BMW 645Ci, 2004-2006 BMW 545i, 2004-2006 BMW 760i
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
C-694, CUF055, UF598T, UF598, 19005293, 50221, 50123, 9212098, 
...View more
item #1000Z3G6
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Walker Products 921-2319 Ignition Coil
Walker ProductsPart # 921-2319
Walker Products 921-2319 Ignition Coil
4.329 Reviews
$42.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2001-2006 BMW M3, 2006-2008 BMW Z4, 2007-2008 BMW 335xi, 2007-2010 BMW 335i, 2008-2008 BMW 535xi, 2008-2010 BMW 135i, 2008-2010 BMW 535i, 2008-2010 BMW X6, 2009-2010 BMW 335i xDrive, 2009-2010 BMW 535i xDrive, 2009-2011 BMW Z4, 2011-2011 BMW 1 Series M, 2011-2011 BMW Z4, 2011-2012 BMW 740Li, 2011-2012 BMW 740i, 2011-2013 BMW 335is, 2012-2016 BMW Z4, 2007-2008 Mini Cooper, 2007-2008 Mini Cooper, 2007-2009 Mini Cooper
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
921-2319, UF804, 12138657273, C940, C-940
item #1001L1AN
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Spectra Premium C-632 Ignition Coil
Spectra PremiumPart # C-632
Spectra Premium C-632 Ignition Coil
52 Reviews
$27.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1981-1983 Alfa Romeo GTV-6, 1970-1972 Audi Super 90, 1970-1974 Audi 100 Series, 1973-1979 Audi Fox, 1980-1980 Audi 4000, 1968-1972 Austin America, 1973-1975 Austin Marina, 1968-1971 BMW 2500, 1968-1971 BMW 2800, 1968-1971 BMW 2800CS, 1972-1974 BMW 3.0CS, 1972-1974 BMW 3.0CSi, 1972-1974 BMW 3.0S, 1975-1978 BMW 530i, 1977-1978 BMW 630CSi, 1977-1979 BMW 320i, 1981-1981 Bentley Mulsanne, 1968-1977 Fiat 124, 1970-1973 Fiat 850, 1975-1976 Fiat X-1/9
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
C-632, CUF2, 521907, U1157, U1123, UF2, 88921308, 25195, 
...View more
item #1000Z5WA
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Walker Products 921-2025 Ignition Coil
Walker ProductsPart # 921-2025
Walker Products 921-2025 Ignition Coil
4.329 Reviews
$58.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1994-1995 BMW M3, 1996-1997 BMW 840Ci, 1996-2001 BMW 740iL, 1997-2001 BMW 740i, 1997-2001 BMW 750iL, 1997-2003 BMW 540i, 1999-2000 BMW Z3, 1999-2000 BMW Z3, 2000-2000 BMW 328Ci, 2000-2000 BMW X5, 2001-2001 BMW X5, 2001-2001 BMW Z3, 2001-2002 BMW 325i, 2001-2002 BMW 325xi, 2001-2002 BMW 525i, 2002-2002 BMW X5, 2002-2003 BMW Z8, 2003-2003 BMW X5
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
921-2025, 133804, 2503804, 36-8008, IC-790, 00129, 0221504004, 0221504029, 
...View more
item #1001L3L9
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Spectra Premium C-806 Ignition Coil
Spectra PremiumPart # C-806
Spectra Premium C-806 Ignition Coil
52 Reviews
$64.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2002-2005 BMW 320i, 2003-2006 BMW 325Ci, 2005-2005 BMW 530i, 2006-2006 BMW 325i, 2006-2006 BMW 325xi, 2006-2006 BMW 330i, 2006-2006 BMW 330xi, 2006-2006 BMW 525i, 2006-2006 BMW 525xi, 2006-2006 BMW 530i, 2006-2006 BMW 530xi, 2006-2006 BMW Z4, 2006-2010 BMW 130i, 2007-2007 BMW 330i, 2007-2007 BMW 525xi, 2007-2007 BMW 530xi, 2007-2008 BMW 328xi, 2007-2008 BMW 335xi, 2007-2008 BMW X5, 2007-2009 BMW Z4
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
C-806, CUF2846, 368212, 522050, UF883, UF592, 192207, 192205, 
...View more
item #1000Z2Q6
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Walker Products 921-2190 Ignition Coil
Walker ProductsPart # 921-2190
Walker Products 921-2190 Ignition Coil
4.329 Reviews
$52.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2014-2017 BMW i8, 2016-2016 BMW 340i, 2016-2016 BMW X1, 2016-2017 BMW 330e, 2016-2017 BMW 340i xDrive, 2016-2017 BMW 740i, 2017-2017 BMW 230i, 2017-2017 BMW 230i xDrive, 2017-2017 BMW 330i, 2017-2017 BMW 330i GT xDrive, 2017-2017 BMW 330i xDrive, 2017-2017 BMW 340i, 2017-2017 BMW 340i GT xDrive, 2017-2017 BMW 430i, 2017-2017 BMW 430i Gran Coupe, 2017-2017 BMW 430i xDrive, 2017-2017 BMW 430i xDrive Gran Coupe, 2017-2017 BMW 440i, 2017-2017 BMW 440i Gran Coupe, 2017-2017 BMW 440i xDrive
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
921-2190, DMB945, 36-8286, 0986221124, 12137619385, 12138678438, UF750, UF-750, 
...View more
item #1001L181
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Spectra Premium C-672 Ignition Coil
Spectra PremiumPart # C-672
Spectra Premium C-672 Ignition Coil
52 Reviews
$50.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1996-1999 BMW 328is, 1996-2000 BMW 328i, 1996-2000 BMW 528i, 1997-1999 BMW 323i, 1998-1999 BMW 323is, 1998-1999 BMW 850Ci, 1998-2000 BMW 740i, 1998-2000 BMW 740iL, 1999-1999 BMW M3, 1999-2000 BMW 323ti, 1999-2003 BMW M5, 2000-2000 BMW 323Ci, 2000-2000 BMW 323i, 2000-2000 BMW 328Ci, 2000-2001 BMW 750iL, 2000-2002 BMW X5, 2000-2002 BMW Z3, 2000-2002 BMW Z8, 2000-2003 BMW 540i, 2001-2001 BMW 320i
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
C-672, CUF300, CUF354, UF300T, UF354T, UF300, UF354, 19113644, 
...View more
item #1000Z5ED
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Walker Products 928-4082-6 Ignition Coil Set
Walker ProductsPart # 928-4082-6
Walker Products 928-4082-6 Ignition Coil Set
4.329 Reviews
$222.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1996-1999 BMW 328is, 1996-1999 BMW M3, 1996-2000 BMW 328i, 1997-1998 BMW Z3, 1997-2000 BMW 528i, 1997-2001 BMW 323i, 1998-1998 BMW Z3, 1998-1999 BMW 323is, 1999-2000 BMW Z3, 1999-2000 BMW Z3, 1999-2002 BMW Z3, 2000-2000 BMW 323Ci, 2000-2000 BMW 328Ci, 2001-2001 BMW X5, 2001-2001 BMW Z3, 2001-2002 BMW 325Ci, 2001-2002 BMW 325i, 2001-2002 BMW 325xi, 2001-2002 BMW 330Ci, 2001-2002 BMW 330i
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
QuantityOne Set
Item LocatedUnited States
Part interchange
928-4082-6
item #1001P5P3
Show less
Walker Products 928-4098-6 Ignition Coil Set
Walker ProductsPart # 928-4098-6
Walker Products 928-4098-6 Ignition Coil Set
4.329 Reviews
$154.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2006-2006 BMW 325i, 2006-2006 BMW 325xi, 2006-2006 BMW 330i, 2006-2006 BMW 330xi, 2006-2006 BMW 525i, 2006-2006 BMW 525xi, 2006-2006 BMW 530i, 2006-2006 BMW 530xi, 2006-2006 BMW Z4, 2006-2006 BMW Z4, 2006-2006 BMW Z4, 2007-2007 BMW 335xi, 2007-2007 BMW 525i, 2007-2007 BMW 525xi, 2007-2007 BMW 530i, 2007-2007 BMW 530xi, 2007-2008 BMW 328xi, 2007-2008 BMW 335i, 2007-2008 BMW Z4, 2007-2010 BMW X3
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
QuantityOne Set
Item LocatedUnited States
Part interchange
928-4098-6
item #1001P43R
Show less
Walker Products 920-1127 Ignition Coil
Walker ProductsPart # 920-1127
Walker Products 920-1127 Ignition Coil
4.329 Reviews
$100.99
Low stock: Only 2 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1995-1995 BMW 850CSi
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
920-1127, 5C1049, C1074, 48593, 0221502010, UF131, 12131720461, 12131720491, 
...View more
item #1001L628
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Walker Products 920-1148 Ignition Coil
Walker ProductsPart # 920-1148
Walker Products 920-1148 Ignition Coil
4.329 Reviews
$175.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1995-1997 BMW 318is, 1995-1998 BMW 318i, 1995-1999 BMW 318ti, 1996-1996 BMW Z3, 1997-1998 BMW Z3
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
920-1148, 5C1053, 0221503489, GN10465, UF291, 12131247281, 178-8245, C792, 
...View more
item #1001L16R
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1 pc Ignition Coil | 3-Blade Terminal | Aisin ESCBM-00091
AisinPart # ESCBM-00091
1 pc Ignition Coil | 3-Blade Terminal | Aisin ESCBM-00091
4.6587 Reviews
$36.99
Low stock: Only 4 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1992 - 1995 BMW 325is, 1992 - 1995 BMW 325i, 1993 - 1993 BMW 525iT, 1992 - 1995 BMW 320i, 1994 - 1995 BMW 840Ci, 1993 - 1995 BMW 740i, 1993 - 1995 BMW 740iL, 1991 - 1995 BMW 525i, 1995 - 1995 BMW M3, 1991 - 1993 BMW 318is, 1991 - 1993 BMW 318i, 1994 - 1995 BMW 530i, 1994 - 1995 BMW 540i
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
12131703359, 12131720166, 12131726176, 12131726177, 12131726178, 12131727108, 12131729842, 12131730765, 
...View more
ConditionNew
item #10186L2S
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Spectra Premium C-865 Ignition Coil
Spectra PremiumPart # C-865
Spectra Premium C-865 Ignition Coil
52 Reviews
$48.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2006-2006 BMW 323i, 2010-2017 BMW 535i GT, 2011-2012 BMW X3, 2011-2012 BMW X5, 2011-2013 BMW 135i, 2011-2013 BMW X5, 2011-2015 BMW 335i, 2011-2016 BMW 535i, 2011-2016 BMW 535i xDrive, 2011-2017 BMW 535i GT xDrive, 2011-2018 BMW X5, 2011-2018 BMW X6, 2012-2012 BMW X1, 2012-2012 BMW X3, 2012-2012 BMW X3, 2012-2013 BMW 328i, 2012-2015 BMW 335i xDrive, 2012-2016 BMW 528i, 2012-2016 BMW 528i xDrive, 2012-2016 BMW ActiveHybrid 5
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
C-865, U5272, UF667T, UF667, UF667TK6, 192209, GN10571, 250170, 
...View more
item #1000Z4VC
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Walker Products 920-1017 Ignition Coil
Walker ProductsPart # 920-1017
Walker Products 920-1017 Ignition Coil
4.329 Reviews
$47.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1981-1983 Alfa Romeo GTV-6, 1970-1972 Audi Super 90, 1970-1974 Audi 100 Series, 1973-1979 Audi Fox, 1980-1980 Audi 4000, 1968-1972 Austin America, 1973-1975 Austin Marina, 1968-1971 BMW 2500, 1968-1971 BMW 2800, 1968-1971 BMW 2800CS, 1972-1972 BMW 3.0CSi, 1972-1974 BMW 3.0CS, 1972-1974 BMW 3.0S, 1975-1976 BMW 3.0Si, 1975-1978 BMW 530i, 1977-1978 BMW 630CSi, 1977-1979 BMW 320i, 1981-1981 Bentley Mulsanne, 1984-1985 Bertone X-1/9, 1986-1987 Bertone X-1/9
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: BMW
Quantity1
Item LocatedUnited States
Part interchange
920-1017, 5195, 1972568, 1972641, 1972648, 1972666, 1972668, 12303003, 
...View more
item #1001L38U
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Page 3 of 6

Premium Automotive Ignition Coils | Restore Engine Power & Fuel Efficiency

Are you experiencing rough idling, engine misfires, or a sudden drop in fuel economy? It might be time for an ignition coil replacement. As a heart of your vehicle's ignition system, a reliable automotive ignition coil transforms your battery's low voltage into the thousands of volts required to create an electric spark in the spark plugs, keeping your engine running smoothly.

At A-Premium, we provide OE-matching car ignition coil solutions designed to eliminate misfires, restore lost horsepower, and ensure reliable cold starts in any weather condition.

Anatomy of an A-Premium engine ignition coil

Anatomy of an A-Premium Engine Ignition Coil

To understand what makes a high-performance engine ignition coil, let’s look inside its core engineering:

  1. Integrated Driving Circuit: Features a compact, smart-integrated electronic chip at the top of the coil to ensure precise ignition timing and robust thermal resistance.
  2. Superior Quality Components & Materials: Wrapped with high-grade copper wire and premium epoxy resin insulation to prevent voltage leaks and withstand extreme under-hood heat.
  3. Rigorously Tested & Inspected: 100% factory stress-tested against thermal shock and vibration to guarantee long-lasting durability.
  4. Diagonal Windings Technology: Eliminates heavy, sectioned bobbins through advanced space-saving diagonal winding, significantly reducing the overall size and weight while maximizing energy output.

Our Advantages: Built for Real-World Driving Scenarios

Our automotive ignition coil lineup is engineered to solve everyday driving pains:

  • The Daily Commute (Stop-and-Go Traffic): Misfires often happen when idling at red lights. Our coils deliver stable, continuous voltage output, eliminating rough idles and ensuring seamless acceleration.
  • Extreme Weather Performance: Cheap coils crack under freezing winter temperatures or intense summer engine heat. Our high-dielectric epoxy coatings prevent micro-cracks, ensuring your engine fires up instantly on the first crank.
  • Fuel & Emission Savings: A weak spark leads to unburnt fuel. Upgrading your worn car ignition coil ensures complete combustion, optimizing your MPG and helping you pass emissions tests effortlessly.

Smart Buyer’s Guide: How to Choose the Best Ignition Coil

Navigating the market for an engine ignition coil can be confusing. Here is what smart buyers look for to get the perfect match:

1. Matching by Vehicle Make & Fitment (The #1 Priority)

Ignition systems are highly sensitive. A generic coil will cause error codes. Most users search and filter by their vehicle’s specific Year, Make, and Model, such as Ford EcoBoost, Honda VTEC, or Toyota VVT-i systems. Always use our fitment selector at the top of the page to find the exact OEM specification for your car.

2. When to Buy an Ignition Coil & Spark Plug Kit? (The Smart Money Move)

Should you buy them together? 90% of mechanics recommend it.

  • The Reason: A worn, old spark plug has a wider gap, which forces the engine ignition coil to work twice as hard to bridge that gap. This extra workload overheats the coil and burns it out prematurely.
  • The Strategy: If your vehicle has crossed 80,000 miles and you are doing an ignition coil replacement, always buy a complete coil and spark plug kit. It saves you from tearing down the engine twice and protects your new investment.

Replacement Checklist: When to Replace vs. When to Keep

Not every engine hiccup requires a new coil. Use this quick checklist to decide your next move:

Time to Replace if:

  • You have a confirmed OBD-II trouble code between P0300 to P0308, indicating a specific cylinder misfire.
  • The plastic housing of the coil shows visible hairline cracks, melting, or burning.
  • Your vehicle has passed 100,000 miles, as ignition coils are wear items and generally degrade after this milestone.

Do NOT Replace Yet if:

  • Your car won't crank at all. This is usually a dead battery or starter motor issue, not the ignition coil.
  • You have a misfire code but haven't checked for oil leaks. Often, a leaking valve cover gasket floods the spark plug well with oil, causing a short circuit. Simply cleaning the oil and replacing the gasket might fix the issue without needing a new coil.

Frequently Asked Questions (FAQ)

Can I replace just one faulty ignition coil, or should I replace them all at once?

If your vehicle has low mileage, replacing just the single failed car ignition coil is perfectly fine. However, if your car has over 80,000 miles, all the coils have experienced the same amount of heat and stress. When one fails, the others are usually close behind. Replacing the whole set at once ensures consistent engine balance and saves on future labor costs.

What are the most common symptoms of a failing engine ignition coil?

The most prominent signs include a flashing Check Engine Light, sudden engine shaking, especially at idle or under load, poor fuel economy, backfiring, and a noticeable hesitation or jerking when you step on the gas pedal.

How long does a typical automotive ignition coil last?

High-quality OEM-grade ignition coils are built to last between 80,000 to 100,000 miles. However, exposure to excessive engine vibration, oil leaks from a failing valve cover gasket, or neglected, worn-out spark plugs can drastically shorten their lifespan.

Will changing my ignition coils improve my gas mileage?

Yes. If your current coils are weak or failing, they create incomplete combustion in the cylinders, meaning your engine is literally throwing away unburnt fuel through the exhaust. Performing an ignition coil replacement restores 100% combustion efficiency, bringing your fuel economy back to factory-fresh levels.

Is it safe to drive with a misfiring ignition coil?

No, you should avoid it. Driving with a failed ignition coil means unburnt raw fuel is entering your exhaust system. This fuel will quickly ignite inside your catalytic converter, overheating it and melting its internal structure. A catalytic converter replacement is significantly more expensive than a simple ignition coil swap.

Related Blogs

Hard Start in Hot Weather? Testing Your Fuel Pump and Ignition Coil for Heat Soak

Heat soak is a "final warning" for aging parts. This guide dives into why fuel pumps and ignition coils fail in high heat and how to professionally diagnose these faults to solve your car’s hot-weather starting issues.

Sep 03, 2026

P0301 Code: Cylinder 1 Misfire Diagnosis and Fix

Experiencing engine issues? The P0301 code signals a cylinder 1 misfire, impacting performance and fuel efficiency. Discover the causes, symptoms, and effective fixes to quickly get your engine back to optimal performance.

Aug 10, 2026

P0351: Ignition Coil A Primary/Secondary Circuit Malfunction

Decode the P0351 Ignition Coil A fault. Learn its meaning, symptoms, and causes like failed coils or bad wiring. Master the DIY diagnosis, including the coil swap test, to avoid costly PCM replacements and restore engine performance efficiently.

Aug 10, 2026

P0306 Code: Cylinder 6 Misfire Causes, Diagnosis, and Fix

Decode the P0306 Cylinder 6 Misfire code. This step-by-step guide helps you pinpoint the exact cause, avoid unnecessary part replacements, reduce repair costs, and prevent severe engine damage.

Aug 10, 2026

P0302 Code: How to Diagnose and Fix a Cylinder 2 Misfire

The P0302 diagnostic trouble code indicates a misfire condition in cylinder 2 of the engine. Specifically, the P0302 code is triggered when the engine control module (ECM) detects that cylinder 2 is not firing properly or is experiencing a misfire.

Jul 30, 2026