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
228 itemsMisfires, rough idle, or weak acceleration can start with aging ignition wires. Replace your spark plug wires set to help deliver steady spark and restore smoother engine performance.
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DensoPart # 671-6017
Spark Plug Wire Set - Denso 671-6017
51 Reviews
$52.99
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
Add Trim and Engine info to ensure a guaranteed fit
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 # 671-6020
Spark Plug Wire Set - Denso 671-6020
51 Reviews
$45.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1989-1989 GMC P2500, 1987-1988 Chevrolet R20, 1987-1988 Chevrolet R30, 1987-1988 Chevrolet V30, 1987-1988 GMC R2500, 1987-1988 GMC R3500, 1987-1988 GMC V3500, 1987-1987 Chevrolet V20, 1987-1987 GMC V2500, 1984-1984 GMC C2500 Suburban, 1984-1984 GMC K2500 Suburban, 1982-1984 GMC G3500, 1981-1984 Chevrolet G30, 1980-1986 Chevrolet C20, 1980-1986 GMC C2500, 1980-1980 Chevrolet K10, 1980-1980 Chevrolet P10, 1980-1980 GMC K1500, 1980-1980 GMC K2500, 1980-1980 GMC P1500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6020, MSW1288, 35-6118, 6716020, 606B, 946J, 11-613M, 2X1187,
...View moreitem #100315ED
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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
Add Trim and Engine info to ensure a guaranteed fit
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 # 671-6061
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
Add Trim and Engine info to ensure a guaranteed fit
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 # 671-6018
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
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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 # 671-6054
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
Add Trim and Engine info to ensure a guaranteed fit
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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DensoPart # 671-6012
Spark Plug Wire Set - Denso 671-6012
51 Reviews
$49.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1991-1994 Isuzu Pickup, 1991-1993 GMC Sonoma, 1991-1992 Isuzu Rodeo, 1989-1991 Isuzu Trooper, 1986-1986 Oldsmobile Cutlass Ciera, 1985-1993 Chevrolet S10, 1985-1990 GMC S15, 1985-1989 Chevrolet Camaro, 1985-1989 Chevrolet S10 Blazer, 1985-1989 GMC S15 Jimmy, 1985-1989 Pontiac Firebird, 1985-1986 Chevrolet Celebrity, 1985-1986 Pontiac 6000, 1985-1985 Buick Skylark, 1985-1985 Chevrolet Citation II, 1983-1986 Buick Century, 1983-1983 Oldsmobile Cutlass Ciera
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6012, 35-6110, 412, MSW1818, 6716012, IX47, 706N, 906B,
...View moreitem #1003156E
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DensoPart # 671-6044
Spark Plug Wire Set - Denso 671-6044
51 Reviews
$36.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1975-1975 Volvo 164, 1974-1974 Buick Apollo, 1974-1974 Chevrolet G20 Van, 1974-1974 Chevrolet G30 Van, 1974-1974 Chevrolet P10 Van, 1974-1974 GMC G25/G2500 Van, 1974-1974 GMC G25/G2500 Van, 1974-1974 GMC G35/G3500 Van, 1974-1974 GMC P15/P1500 Van, 1974-1974 Volvo 164, 1973-1974 Chevrolet C10 Pickup, 1973-1974 Chevrolet C10 Suburban, 1973-1974 Chevrolet Malibu, 1973-1974 Chevrolet P20 Van, 1973-1974 Chevrolet P30 Van, 1973-1974 GMC C15/C1500 Pickup, 1973-1974 GMC C15/C1500 Suburban, 1973-1974 GMC P25/P2500 Van, 1973-1974 GMC P35/P3500 Van, 1973-1974 Oldsmobile Omega
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6044, 116, 35-6326, 6716044, 51426, GMX016, 506C, 506B,
...View moreitem #10031697
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DensoPart # 671-6059
Spark Plug Wire Set - Denso 671-6059
51 Reviews
$88.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1999-2001 Chevrolet Silverado 1500, 1999-2001 GMC Sierra 1500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6059, 116061, 35-6156, 6716059, 97006, 700037, 766D, CH76158,
...View moreitem #100317SQ
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DensoPart # 671-8021
Spark Plug Wire Set - Denso 671-8021
51 Reviews
$58.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1994-1997 Chevrolet P30, 1994-1997 GMC P3500, 1994-1995 Chevrolet C2500, 1994-1995 Chevrolet C2500 Suburban, 1994-1995 Chevrolet C3500, 1994-1995 Chevrolet G30, 1994-1995 Chevrolet K2500, 1994-1995 Chevrolet K2500 Suburban, 1994-1995 Chevrolet K3500, 1994-1995 GMC C2500, 1994-1995 GMC C2500 Suburban, 1994-1995 GMC C3500, 1994-1995 GMC G3500, 1994-1995 GMC K2500, 1994-1995 GMC K2500 Suburban, 1994-1995 GMC K3500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8021, 35-8119, MSW1788, 6718021, 718C, 11-870M, QW975, 118018,
...View moreitem #100316GP
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DensoPart # 671-8171
Spark Plug Wire Set - Denso 671-8171
51 Reviews
$89.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2006-2007 Chevrolet Express 1500, 2006-2007 Chevrolet Express 2500, 2006-2007 Chevrolet Express 3500, 2006-2007 GMC Savana 1500, 2006-2007 GMC Savana 2500, 2006-2007 GMC Savana 3500, 2004-2004 GMC Envoy XL, 2003-2007 Chevrolet Express 2500, 2003-2007 Chevrolet Express 3500, 2003-2007 GMC Savana 2500, 2003-2007 GMC Savana 3500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8171, 118081, 757, 6718171, 700531, 748QQ, CH7883, 09018,
...View moreitem #1004YXVQ
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DensoPart # 671-6284
Spark Plug Wire Set - Denso 671-6284
51 Reviews
$65.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2008-2014 Chevrolet Express 1500, 2008-2013 GMC Savana 1500, 2007-2013 Chevrolet Silverado 1500, 2007-2013 GMC Sierra 1500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6284, 116082, 6716284, 700037, 746UU, 7734
item #100314PA
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DensoPart # 671-8040
Spark Plug Wire Set - Denso 671-8040
51 Reviews
$55.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1974-1974 Chevrolet Corvette, 1972-1972 Chevrolet C20 Pickup, 1971-1971 GMC G15/G1500 Van, 1971-1971 GMC G25/G2500 Van, 1971-1971 GMC G35/G3500 Van, 1970-1972 Chevrolet P20 Van, 1970-1972 Chevrolet P30 Van, 1970-1972 GMC Jimmy, 1970-1972 GMC Jimmy, 1970-1972 GMC K15/K1500 Suburban, 1970-1972 GMC P25/P2500 Van, 1970-1972 GMC P35/P3500 Van, 1970-1970 Chevrolet Bel Air, 1970-1970 Chevrolet Biscayne, 1970-1970 Chevrolet Brookwood, 1970-1970 Chevrolet Caprice, 1970-1970 Chevrolet Impala, 1970-1970 Chevrolet Kingswood, 1970-1970 Chevrolet Monte Carlo, 1970-1970 Chevrolet Monte Carlo
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8040, MSW1909, 35-8139, 6718040, 508N, 908V, 11-803M, 2X1180,
...View moreitem #100318EP
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DensoPart # 671-6024
Spark Plug Wire Set - Denso 671-6024
51 Reviews
$48.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1987-1987 Buick Regal, 1986-1987 Buick Regal, 1986-1986 Buick Regal, 1985-1987 Oldsmobile Cutlass Salon, 1982-1984 Buick Regal, 1982-1983 Pontiac Grand LeMans, 1982-1982 Buick Skylark, 1982-1982 Chevrolet Celebrity, 1982-1982 Chevrolet Citation, 1982-1982 Oldsmobile Cutlass Ciera, 1982-1982 Oldsmobile Omega, 1982-1982 Pontiac 6000, 1982-1982 Pontiac Bonneville, 1982-1982 Pontiac Grand LeMans, 1982-1982 Pontiac Grand Prix, 1982-1982 Pontiac Phoenix, 1981-1985 Pontiac Parisienne, 1981-1984 Buick Riviera, 1981-1984 Oldsmobile Toronado, 1981-1983 Oldsmobile 98
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6024, 35-6122, MSW1284, 6716024, 606M, 11-617M, 2X1073, QW833,
...View moreitem #100314HH
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DensoPart # 671-8034
Spark Plug Wire Set - Denso 671-8034
51 Reviews
$69.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1989-1989 Chevrolet R3500, 1989-1989 Chevrolet V3500, 1987-1989 Chevrolet P30, 1987-1989 GMC P3500, 1987-1989 GMC R3500, 1987-1989 GMC V3500, 1987-1988 Chevrolet R30, 1987-1988 Chevrolet V30, 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
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8034, 35-8133, MSW1825, 6718034, 618T, 11-855M, 2X1122, QW877,
...View moreitem #1003162U
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DensoPart # 671-6056
Spark Plug Wire Set - Denso 671-6056
51 Reviews
$52.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1995-1995 Chevrolet Blazer, 1995-1995 Chevrolet S10, 1995-1995 GMC Jimmy, 1995-1995 GMC Sonoma
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6056, 116058, 35-6153, 6716056, VWC028, 96645, 96184, 700983,
...View moreitem #100317ZH
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DensoPart # 671-8070
Spark Plug Wire Set - Denso 671-8070
51 Reviews
$51.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1975-1975 GMC Sprint, 1974-1974 GMC C25/C2500 Suburban, 1974-1974 GMC Sprint, 1974-1974 GMC Sprint, 1974-1974 GMC Sprint, 1973-1974 Chevrolet Blazer, 1973-1974 Chevrolet C10 Pickup, 1973-1974 Chevrolet C10 Suburban, 1973-1974 Chevrolet C20 Pickup, 1973-1974 Chevrolet C20 Suburban, 1973-1974 Chevrolet C30 Pickup, 1973-1974 Chevrolet K10 Pickup, 1973-1974 Chevrolet K10 Suburban, 1973-1974 Chevrolet K20 Pickup, 1973-1974 Chevrolet K20 Suburban, 1973-1974 Chevrolet K30 Pickup, 1973-1974 Chevrolet P20 Van, 1973-1974 Chevrolet P30 Van, 1973-1974 GMC C15/C1500 Pickup, 1973-1974 GMC C15/C1500 Suburban
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8070, 118072, 35-8333, 6718070, 96203, 700134, 708C, 2X1134,
...View moreitem #100315Z2
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DensoPart # 671-8030
Spark Plug Wire Set - Denso 671-8030
51 Reviews
$53.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1984-1984 Oldsmobile Cutlass Calais, 1982-1983 Chevrolet Camaro, 1982-1982 Chevrolet C10 Suburban, 1982-1982 Chevrolet C10 Suburban, 1982-1982 Chevrolet C30, 1982-1982 Chevrolet K10 Suburban, 1982-1982 Chevrolet K30, 1982-1982 GMC C1500 Suburban, 1982-1982 GMC C1500 Suburban, 1982-1982 GMC C2500 Suburban, 1982-1982 GMC K1500 Suburban, 1982-1982 GMC K1500 Suburban, 1981-1982 Chevrolet C10, 1981-1982 Chevrolet C10, 1981-1982 Chevrolet C20, 1981-1982 Chevrolet C20, 1981-1982 Chevrolet C20 Suburban, 1981-1982 Chevrolet C20 Suburban, 1981-1982 Chevrolet K10, 1981-1982 Chevrolet K10
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8030, 118028, 35-8129, 6718030, 96279, 96282, 700251, 618F,
...View moreitem #100314SV
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What are spark plug wires?
Spark plug wires, also known as ignition cables or spark plug leads, are a set of wires that connect the ignition coil or distributor to the spark plugs in an internal combustion engine. They are responsible for transmitting high-voltage electrical energy from the ignition source to the spark plugs, which ignite the fuel-air mixture in the engine's cylinders.
The spark plug wires typically consist of a central core made of conductive materials such as copper, and an insulating layer made of materials like silicone or rubber to prevent electrical current from leaking. The wires are designed to withstand high temperatures and electrical interference and are often color-coded to ensure correct installation.
Signs of bad spark plug wires
Spark plug wires play a crucial role in ensuring reliable engine performance. Worn or damaged spark plug wires can cause misfires, rough idling, and poor fuel efficiency, so it's important to take regular maintenance and replace them as needed.
Engine knocking
When the spark plug wires fail, the engine may produce a knocking sound, particularly under heavy loads. This can be caused by pre-ignition or detonation, which can occur when the spark plug wires are not delivering enough energy to the spark plugs.
Rough shifting (automatic transmission)
In some cases, a damaged spark plug wire can cause rough shifting in an automatic transmission. This can be due to a drop in engine power caused by misfires or other problems related to the spark plug wires.
Burned spark plug wires
If you notice that your spark plug wires are discolored or burned, this can be a sign that they are not functioning properly. Burned spark plug wires can be caused by excessive heat, electrical interference, or other issues.
Poor acceleration
When the spark plug wires are failing, the engine may have trouble accelerating smoothly. This can be due to misfires or other problems related to the spark plug wires.
Stalling
A damaged spark plug wire can cause the engine to stall or cut out, particularly at idle. This can be due to a drop in engine power caused by misfires or other problems related to the spark plug wires.
How to change spark plug wires?
Replacing a spark plug wire set is a relatively simple task, and can usually be completed in under an hour. You can follow these steps:
1. Remove the worn or faulty spark wire set.
To avoid confusion and prevent accidentally switching the wires, it is recommended to replace each spark plug wire individually, starting with the longest one. When removing the wires from either the spark plug or distributor cap, it is important to loosen the connection by twisting or rotating the boot. Yanking or forcefully pulling on the wires may cause them to break. Only pull on the boot and refrain from pulling on the cable.
2. Install the new spark plug wire set
Install the new spark plug wires in the same location as the old wires, making sure to connect each wire to the correct spark plug. If your new spark plug wires have boots, be sure to push the boot firmly onto the spark plug until it clicks into place.
3. Test the new spark plug wires
Once you have installed the new spark plug wires, start the engine and check for any signs of misfires, rough idling, or other problems that could indicate an issue with the spark plug wires. If everything looks good, you're all set!