What Does A Spark Plug Do
Spark plugs can make or break your engine’s performance. Understand how they work, how to recognize a faulty one, and get expert advice on choosing the right spark plug for better engine health.
Jul 21, 2026
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GMC Spark Plug Wire
771 itemsSpark plug wires carry high voltage from the ignition coil or distributor to the spark plugs on engines equipped with separate ignition leads. Their insulated cables and boots help keep that voltage on its intended path to the plugs.
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DensoPart # 671-6103
Spark Plug Wire Set - Denso 671-6103
51 Reviews
$34.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1975-1976 Ford Granada, 1975-1976 Ford Granada, 1975-1976 Ford Maverick, 1975-1976 Ford Maverick, 1975-1976 Mercury Comet, 1975-1976 Mercury Comet, 1975-1976 Mercury Monarch, 1975-1976 Mercury Monarch, 1974-1974 Ford Bronco, 1974-1974 Ford Gran Torino, 1974-1974 Ford Gran Torino, 1974-1974 Ford Mustang II, 1974-1974 Ford Mustang II, 1974-1974 Ford Mustang II, 1974-1974 Ford Mustang II, 1974-1974 Ford Torino, 1974-1974 Mercury Comet, 1974-1974 Mercury Comet, 1974-1974 Mercury Montego, 1973-1973 Ford Bronco
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6103, 126033, 35-6188, MSW1903, 6716103, 96100, 700145, 700165,
...View moreitem #100315K4
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DensoPart # 671-8045
Spark Plug Wire Set - Denso 671-8045
51 Reviews
$45.99
Low stock: Only 5 left
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3-year warranty
90 days free return
Fits 1974-1974 Chevrolet Bel Air, 1974-1974 Chevrolet Caprice, 1974-1974 Chevrolet Corvette, 1974-1974 Chevrolet El Camino, 1974-1974 Chevrolet El Camino, 1974-1974 Chevrolet El Camino, 1974-1974 Chevrolet Impala, 1974-1974 Chevrolet K10 Pickup, 1974-1974 Chevrolet Laguna, 1974-1974 Chevrolet Malibu, 1974-1974 Chevrolet Malibu, 1974-1974 Chevrolet Malibu, 1974-1974 Chevrolet Monte Carlo, 1974-1974 Chevrolet Monte Carlo, 1974-1974 GMC C25/C2500 Suburban, 1974-1974 GMC P35/P3500 Van, 1974-1974 GMC Sprint, 1974-1974 GMC Sprint, 1973-1974 Chevrolet Bel Air, 1973-1974 Chevrolet C10 Pickup
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8045, 118044, 35-8331, 6718045, 96893, 700151, 508R, CH851,
...View moreitem #1003153Z
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DensoPart # 671-6235
Spark Plug Wire Set - Denso 671-6235
51 Reviews
$70.99
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3-year warranty
90 days free return
Fits 2006-2006 Chevrolet Silverado 1500, 2006-2006 Chevrolet Silverado 1500, 2002-2006 GMC Sierra 1500, 2002-2005 Chevrolet Silverado 1500
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6235, 116077, 35-6337, 6716235, 97006, 746MM, 88984266, 79476
item #100315D2
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DensoPart # 671-4045
Spark Plug Wire Set - Denso 671-4045
51 Reviews
$45.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1998-2003 Chevrolet S10, 1998-2003 GMC Sonoma, 1998-2000 Isuzu Hombre, 1995-1997 Pontiac Sunfire, 1994-1995 Chevrolet LLV, 1994-1995 GMC Sonoma, 1993-1997 Chevrolet Cavalier, 1993-1996 Buick Century, 1993-1996 Oldsmobile Cutlass Ciera, 1993-1993 Chevrolet Lumina, 1992-1996 Chevrolet Beretta, 1992-1996 Chevrolet Corsica
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-4045, MSW1780, MSW1736, MSW1793, 35-4126, 714, 6714045, GMX082,
...View moreitem #1002HUH8
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DensoPart # 671-4006
Spark Plug Wire Set - Denso 671-4006
51 Reviews
$41.99
Low stock: Only 5 left
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3-year warranty
90 days free return
Fits 1995-1997 Geo Metro, 1995-1996 Pontiac Firefly, 1995-1995 Geo Tracker, 1995-1995 Suzuki Swift, 1993-1993 Suzuki Swift, 1992-1994 Suzuki Swift, 1992-1994 Suzuki Swift, 1992-1994 Suzuki Swift, 1992-1992 Chevrolet Metro, 1989-1990 Chevrolet Tracker, 1989-1990 Geo Tracker, 1989-1990 GMC Tracker, 1989-1989 Geo Spectrum, 1989-1989 Geo Spectrum, 1989-1989 Isuzu I-Mark, 1988-1989 Isuzu I-Mark, 1988-1989 Mazda 323, 1988-1989 Mazda 323, 1988-1989 Mazda 323, 1988-1988 Mazda 323
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-4006, 185, 299, MSW1918, 35-4006, 6714006, ZE04, IX43,
...View moreitem #1002HXLG
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DensoPart # 671-8044
Spark Plug Wire Set - Denso 671-8044
51 Reviews
$49.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1984-1986 Jeep Grand Wagoneer, 1979-1979 American Motors Spirit, 1978-1979 American Motors AMX, 1978-1979 American Motors Concord, 1978-1979 American Motors Pacer, 1977-1986 Jeep J20, 1976-1981 Jeep CJ7, 1976-1976 Jeep J20, 1976-1976 Jeep J20, 1975-1983 Jeep Wagoneer, 1975-1981 Jeep CJ5, 1975-1978 Jeep Wagoneer, 1975-1977 American Motors Hornet, 1975-1977 American Motors Matador, 1975-1976 American Motors Gremlin, 1975-1975 Jeep CJ6, 1975-1975 Jeep J20, 1974-1986 Jeep J10, 1974-1983 Jeep Cherokee, 1974-1978 Jeep Cherokee
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8044, 35-8142, MSW1914, 6718044, 518F, 508G, 11-865M, 2X1019,
...View moreitem #100316Z8
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DensoPart # 671-8160
Spark Plug Wire Set - Denso 671-8160
51 Reviews
$83.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2007-2007 Chevrolet Silverado 2500 HD Classic, 2007-2007 Chevrolet Silverado 3500 Classic, 2007-2007 GMC Sierra 2500 HD Classic, 2007-2007 GMC Sierra 3500 Classic, 2006-2006 Chevrolet Silverado 3500, 2006-2006 Chevrolet Suburban 2500, 2003-2006 Chevrolet Avalanche 2500, 2003-2006 Chevrolet Silverado 2500 HD, 2003-2006 GMC Sierra 2500 HD, 2003-2006 GMC Sierra 3500, 2003-2006 GMC Yukon XL 2500
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8160, 118078, 35-8343, 6718160, EUC053, 748KK, 7877
item #1004YZQG
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DensoPart # 671-8009
Spark Plug Wire Set - Denso 671-8009
51 Reviews
$54.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1977-1979 Checker Marathon, 1977-1977 Buick Century, 1977-1977 Buick Century, 1977-1977 Buick Regal, 1977-1977 Buick Regal, 1977-1977 Buick Skylark, 1977-1977 Chevrolet C10, 1977-1977 Chevrolet C10 Suburban, 1977-1977 Chevrolet C20, 1977-1977 Chevrolet C20 Suburban, 1977-1977 Chevrolet G10, 1977-1977 Chevrolet K10, 1977-1977 Chevrolet K10 Suburban, 1977-1977 Chevrolet K20, 1977-1977 Chevrolet K20 Suburban, 1977-1977 Chevrolet K30, 1977-1977 Chevrolet K30, 1977-1977 Chevrolet K5 Blazer, 1977-1977 Chevrolet Malibu, 1977-1977 Chevrolet Monte Carlo
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8009, 118004, 35-8105, 6718009, 96292, 96192, 700244, 908S,
...View moreitem #100314L9
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DensoPart # 671-8007
Spark Plug Wire Set - Denso 671-8007
51 Reviews
$62.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1985-1986 Chevrolet Caprice, 1985-1985 Pontiac Parisienne, 1983-1986 Pontiac Bonneville, 1983-1986 Pontiac Grand Prix, 1983-1986 Pontiac Parisienne, 1983-1984 Chevrolet C10, 1983-1984 Chevrolet C10, 1983-1984 Chevrolet C10 Suburban, 1983-1984 Chevrolet C10 Suburban, 1983-1984 Chevrolet C20, 1983-1984 Chevrolet C20, 1983-1984 Chevrolet C20 Suburban, 1983-1984 Chevrolet C20 Suburban, 1983-1984 Chevrolet C30, 1983-1984 Chevrolet K10, 1983-1984 Chevrolet K10, 1983-1984 Chevrolet K10 Suburban, 1983-1984 Chevrolet K20, 1983-1984 Chevrolet K20 Suburban, 1983-1984 Chevrolet K30
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8007, 35-8103, MSW1275, 6718007, 608E, 11-837M, 2X1109, QW843,
...View moreitem #100315D0
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DensoPart # 671-8015
Spark Plug Wire Set - Denso 671-8015
51 Reviews
$69.99
Low stock: Only 2 left
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3-year warranty
90 days free return
Fits 1992-1993 Chevrolet C2500 Suburban, 1992-1993 Chevrolet K2500 Suburban, 1992-1993 GMC C2500 Suburban, 1992-1993 GMC K2500 Suburban, 1991-1993 Chevrolet C2500, 1991-1993 Chevrolet K2500, 1991-1993 GMC C2500, 1991-1993 GMC K2500, 1990-1993 Chevrolet C3500, 1990-1993 Chevrolet G30, 1990-1993 Chevrolet K3500, 1990-1993 Chevrolet P30, 1990-1993 GMC C3500, 1990-1993 GMC G3500, 1990-1993 GMC K3500, 1990-1993 GMC P3500, 1990-1991 Chevrolet R2500 Suburban, 1990-1991 Chevrolet R3500, 1990-1991 Chevrolet V3500, 1990-1991 GMC R2500 Suburban
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8015, 118011, 35-8112, 6718015, 96274, 700430, 628H, CH8841,
...View moreitem #10031525
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DensoPart # 671-8011
Spark Plug Wire Set - Denso 671-8011
51 Reviews
$55.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1985-1986 Chevrolet C20, 1985-1986 Chevrolet C20 Suburban, 1985-1986 Chevrolet C30, 1985-1986 Chevrolet K30, 1985-1986 Chevrolet P30, 1985-1986 GMC C2500, 1985-1986 GMC C2500 Suburban, 1985-1986 GMC C3500, 1985-1986 GMC K3500, 1985-1986 GMC P3500, 1985-1985 Chevrolet K20 Suburban, 1983-1984 Chevrolet C20, 1983-1984 Chevrolet C20 Suburban, 1983-1984 Chevrolet C30, 1983-1984 Chevrolet K30, 1983-1984 Chevrolet P30, 1983-1984 GMC C2500, 1983-1984 GMC C2500 Suburban, 1983-1984 GMC C3500, 1983-1984 GMC K3500
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8011, 118006, 35-8107, 6718011, 96286, 700356, CH855, 618G,
...View moreitem #100313PH
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DensoPart # 671-8072
Spark Plug Wire Set - Denso 671-8072
51 Reviews
$87.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2005-2005 Chevrolet Express 3500, 2004-2005 GMC Savana 3500, 2004-2004 Buick Rainier, 2003-2005 Chevrolet Express 1500, 2003-2005 Chevrolet Express 2500, 2003-2005 Chevrolet Express 2500, 2003-2005 Chevrolet Express 2500, 2003-2005 Chevrolet Express 3500, 2003-2005 GMC Savana 1500, 2003-2005 GMC Savana 2500, 2003-2005 GMC Savana 2500, 2003-2005 GMC Savana 2500, 2003-2004 Chevrolet SSR, 2003-2004 Chevrolet Trailblazer EXT, 2003-2004 Isuzu Ascender, 2003-2003 GMC Envoy XL, 2003-2003 GMC Savana 3500
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8072, 118075, 35-8337, 6718072, 97093, 700531, 748JJ, 7881
item #100316Z3
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DensoPart # 671-8055
Spark Plug Wire Set - Denso 671-8055
51 Reviews
$101.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1996-2000 Chevrolet C2500, 1996-2000 Chevrolet C3500, 1996-2000 Chevrolet Express 3500, 1996-2000 Chevrolet K2500, 1996-2000 Chevrolet K3500, 1996-2000 GMC C2500, 1996-2000 GMC C3500, 1996-2000 GMC K2500, 1996-2000 GMC K3500, 1996-2000 GMC Savana 3500, 1996-1999 Chevrolet C2500 Suburban, 1996-1999 Chevrolet K2500 Suburban, 1996-1999 Chevrolet P30, 1996-1999 GMC C2500 Suburban, 1996-1999 GMC K2500 Suburban, 1996-1999 GMC P3500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8055, 35-8151, MSW1787, 6718055, 748G, 11-888M, 2X1205, QW1130,
...View moreitem #1003175U
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DensoPart # 671-6017
Spark Plug Wire Set - Denso 671-6017
51 Reviews
$52.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1992-1995 Chevrolet C1500, 1992-1995 Chevrolet C2500, 1992-1995 Chevrolet K1500, 1992-1995 Chevrolet K2500, 1992-1995 Chevrolet P30, 1992-1995 GMC C1500, 1992-1995 GMC C2500, 1992-1995 GMC K1500, 1992-1995 GMC K2500, 1992-1995 GMC P3500
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6017, 116016, 35-6115, 6716017, 96184, 96827, 700372, 700389,
...View moreitem #100317Y7
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DensoPart # 671-8042
Spark Plug Wire Set - Denso 671-8042
51 Reviews
$47.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1975-1975 Chevrolet G10, 1975-1975 Chevrolet G20, 1975-1975 Chevrolet G30, 1975-1975 GMC G15, 1975-1975 GMC G25, 1975-1975 GMC G35, 1974-1974 Chevrolet G10 Van, 1974-1974 Chevrolet G20 Van, 1974-1974 Chevrolet G30 Van, 1974-1974 GMC G15/G1500 Van, 1974-1974 GMC G25/G2500 Van, 1974-1974 GMC G35/G3500 Van, 1972-1972 Pontiac Ventura, 1971-1972 Pontiac Ventura, 1970-1970 Chevrolet Camaro, 1970-1970 Chevrolet Camaro, 1969-1970 Chevrolet Chevelle, 1969-1970 Chevrolet El Camino, 1969-1970 Chevrolet Nova, 1969-1969 Chevrolet Camaro
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8042, 118041, 35-8140, 6718042, 96203, 700147, 508F, 09655,
...View moreitem #100316C0
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DensoPart # 671-6018
Spark Plug Wire Set - Denso 671-6018
51 Reviews
$53.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1996-1996 Chevrolet Express 1500, 1996-1996 Chevrolet Express 2500, 1995-1995 Chevrolet Blazer, 1995-1995 Chevrolet S10, 1995-1995 GMC Jimmy, 1995-1995 GMC Sonoma, 1992-1995 Chevrolet Astro, 1992-1995 Chevrolet G10, 1992-1995 Chevrolet G20, 1992-1995 Chevrolet G30, 1992-1995 GMC G1500, 1992-1995 GMC G2500, 1992-1995 GMC G3500, 1992-1995 GMC Safari, 1992-1994 Chevrolet S10, 1992-1994 Chevrolet S10 Blazer, 1992-1994 GMC Jimmy, 1992-1994 GMC Sonoma, 1992-1994 Oldsmobile Bravada
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6018, 35-6116, MSW1601, 708, 6716018, 716W, 11-6017M, 2X1192,
...View moreitem #100313ZE
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DensoPart # 671-6061
Spark Plug Wire Set - Denso 671-6061
51 Reviews
$71.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2002-2002 Chevrolet Express 1500, 2002-2002 Chevrolet Express 2500, 2002-2002 GMC Savana 1500, 2002-2002 GMC Savana 2500, 2000-2002 Chevrolet Astro, 2000-2001 GMC Safari
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6061, 116064, 35-6324, 6716061, 96871, 700953, 726FF, CH76167,
...View moreitem #100315Z3
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DensoPart # 671-6054
Spark Plug Wire Set - Denso 671-6054
51 Reviews
$76.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1997-2000 Isuzu Hombre, 1996-2001 Chevrolet Express 1500, 1996-2001 Chevrolet Express 2500, 1996-2001 GMC Savana 1500, 1996-2001 GMC Savana 2500, 1996-2001 Oldsmobile Bravada, 1996-1999 Chevrolet Astro, 1996-1999 GMC Safari, 1996-1998 Chevrolet C1500, 1996-1998 Chevrolet K1500, 1996-1998 Chevrolet P30, 1996-1998 GMC C1500, 1996-1998 GMC K1500, 1996-1998 GMC P3500, 1996-1997 Chevrolet Blazer, 1996-1997 Chevrolet S10, 1996-1997 GMC Jimmy, 1996-1997 GMC Sonoma
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6054, 35-6151, 699, MSW1783, 6716054, IX59, 746T, 756B,
...View moreitem #100315GX
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DensoPart # 671-6068
Spark Plug Wire Set - Denso 671-6068
51 Reviews
$63.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2004-2004 Chevrolet S10, 2004-2004 GMC Sonoma, 2003-2007 GMC Savana 1500, 2003-2006 Chevrolet Express 1500, 2003-2005 Chevrolet Astro, 2003-2005 Chevrolet Blazer, 2003-2005 Chevrolet Express 2500, 2003-2005 GMC Savana 2500, 2002-2005 GMC Safari, 2002-2002 Chevrolet Blazer, 1999-1999 Chevrolet P30, 1999-1999 GMC P3500, 1998-2005 GMC Jimmy, 1998-2003 Chevrolet S10, 1998-2003 GMC Sonoma, 1998-2001 Chevrolet Blazer
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6068, 116072, 35-6327, 6716068, 96871, 700540, 746KK, 09791,
...View moreitem #100315PA
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DensoPart # 671-8064
Spark Plug Wire Set - Denso 671-8064
51 Reviews
$83.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2002-2002 Chevrolet Avalanche 2500, 2001-2005 Chevrolet Silverado 3500, 2001-2005 Chevrolet Suburban 2500, 2001-2002 Chevrolet Express 3500, 2001-2002 Chevrolet Silverado 2500 HD, 2001-2002 GMC Savana 3500, 2001-2002 GMC Sierra 2500 HD, 2001-2002 GMC Sierra 3500, 2001-2002 GMC Yukon XL 2500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8064, 118065, 35-8159, 732, 6718064, 97073, 97095, 700216,
...View moreitem #1003177S
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What Spark Plug Wires Do
Spark plug wires carry high voltage from the ignition coil or distributor to the spark plugs on engines equipped with separate ignition leads. Their insulated cables and boots help keep that voltage on its intended path to the plugs.
A-Premium offers wire sets for selected engines with different wire counts, lengths and connections. Match the exact application and ignition layout, then check the terminal ends and boot angles; wire diameter alone does not establish fit.
Inspecting And Replacing Ignition Wires
Heat damage, cuts or loose connections can interfere with spark delivery and contribute to misfires or rough running. Inspect the wires, boots, spark plugs and ignition components before deciding what needs replacement; similar symptoms can have other causes.
Keep each lead connected to the correct terminal and route it away from hot or moving components using the specified supports. Wire manufacturers recommend replacing leads one at a time and pulling on the boot rather than the cable. On distributor-equipped systems, also inspect the cap and distributor rotor as separate components.
Frequently Asked Questions (FAQ)
Does the number of wires always equal the number of cylinders?
The contents depend on the ignition layout: some distributor systems also use a separate coil wire. Check the selected set's listed contents and the vehicle application instead of choosing by cylinder count alone.
Why do wire length and boot angle matter?
The lead must reach the correct connection without stretching and follow a safe route around the engine. Boot shape and angle affect how it seats at the plug or coil and help it clear nearby parts.
Are spark plug wires used on every ignition system?
Some engines use individual coils mounted directly on the spark plugs with insulated coil boots instead of conventional long plug leads. Identify the installed ignition design before choosing wires or boots.
Does a thicker spark plug wire automatically improve ignition performance?
Wire diameter alone does not describe its resistance, terminals or compatibility. Choose the wire construction and specifications appropriate to the ignition system rather than assuming a larger diameter provides an upgrade.
What can damage a spark plug wire before it wears out?
A wire can be burned by nearby exhaust heat, cut by a sharp edge or damaged when the cable is pulled instead of its boot. Correct routing and secure supports help keep the replacement away from these hazards.