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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Chevrolet Blazer Spark Plug Wire
86 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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Walker ProductsPart # 924-1414
Walker Products 924-1414 Spark Plug Wire Set
4.73 Reviews
$47.99
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3-year warranty
90 days free return
Fits 1981-1982 GMC C7000, 1980-1982 Chevrolet K30, 1980-1980 Buick Electra, 1980-1980 Buick LeSabre, 1980-1980 Chevrolet C10, 1980-1980 Chevrolet C20, 1980-1980 Chevrolet C20 Suburban, 1980-1980 Chevrolet K10, 1980-1980 Chevrolet K10, 1980-1980 Chevrolet K20, 1980-1980 Chevrolet K30, 1980-1980 GMC K1500, 1980-1980 Pontiac Bonneville, 1980-1980 Pontiac Bonneville, 1980-1980 Pontiac Catalina, 1980-1980 Pontiac Parisienne, 1979-1982 GMC C2500, 1979-1982 GMC C2500 Suburban, 1979-1982 GMC C3500, 1979-1982 GMC K3500
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Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1414, 35-8127, 35-8333, 35-8104, 2931, 2943, 9056, 226,
...View moreitem #1001PP5D
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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: Chevrolet Blazer
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 # 671-6044
Spark Plug Wire Set - Denso 671-6044
51 Reviews
$36.99
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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
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Vehicle: Chevrolet Blazer
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 # 671-8007
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: Chevrolet Blazer
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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Walker ProductsPart # 924-1509
Walker Products 924-1509 Spark Plug Wire Set
4.73 Reviews
$41.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1977-1977 Chevrolet Caprice, 1977-1977 Chevrolet Impala, 1977-1977 Chevrolet K30, 1977-1977 Chevrolet P10, 1977-1977 GMC C25, 1977-1977 GMC K35, 1976-1976 Chevrolet G30, 1976-1976 Chevrolet P10, 1976-1976 Chevrolet P30, 1975-1977 Checker Marathon, 1975-1977 Chevrolet C10, 1975-1977 Chevrolet C10, 1975-1977 Chevrolet C10 Suburban, 1975-1977 Chevrolet C20, 1975-1977 Chevrolet C20, 1975-1977 Chevrolet C20 Suburban, 1975-1977 Chevrolet C30, 1975-1977 Chevrolet Camaro, 1975-1977 Chevrolet El Camino, 1975-1977 Chevrolet G10
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Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1509, 35-6142, 2915, 9042, 101, 141, 101CON, 101ELE,
...View moreitem #1001PPUV
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Walker ProductsPart # 924-1553
Walker Products 924-1553 Spark Plug Wire Set
4.73 Reviews
$62.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2015-2015 Chevrolet Camaro, 2013-2014 Chevrolet Express 2500, 2013-2014 Chevrolet Express 3500, 2013-2013 Chevrolet Suburban 2500, 2012-2015 Chevrolet Caprice, 2012-2014 Chevrolet Suburban 1500, 2012-2012 Chevrolet Suburban 2500, 2011-2015 Ford F-250 Super Duty, 2011-2015 Ford F-350, 2011-2015 Ford F-350 Super Duty, 2011-2013 Chevrolet Silverado 3500, 2011-2013 GMC Yukon XL 2500, 2011-2013 Ram 1500, 2011-2011 Chevrolet Caprice, 2011-2011 Chevrolet Suburban 1500, 2011-2011 Ram Dakota, 2010-2015 Chevrolet Camaro, 2010-2014 Chevrolet Express Cargo, 2010-2014 Chevrolet Express Pasajeros, 2010-2014 Ford F-150
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Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1553
item #1001PSN3
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Walker ProductsPart # 924-2072
Walker Products 924-2072 Spark Plug Wire Set
4.73 Reviews
$42.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2004-2004 Chevrolet S10, 2004-2004 GMC Sonoma, 2003-2007 Chevrolet Express 1500, 2003-2005 Chevrolet Astro, 2003-2005 Chevrolet Blazer, 2003-2005 Chevrolet Express 2500, 2003-2003 Chevrolet S10, 2002-2006 Chevrolet Silverado 1500, 2002-2006 GMC Sierra 1500, 2002-2005 GMC Safari, 2001-2001 Chevrolet G30, 1999-1999 Chevrolet P30, 1999-1999 GMC P3500, 1998-2007 GMC Savana 1500, 1998-2005 GMC Jimmy, 1998-2005 GMC Savana 2500, 1998-2003 GMC Sonoma, 1998-2001 Chevrolet Blazer, 1998-2001 Chevrolet Express 1500, 1998-2001 Chevrolet Express 2500
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Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-2072, 35-6337, 35-6327, 3163, 9593, 3125, 3146, 8HY-3146,
...View moreitem #1001PR19
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Walker ProductsPart # 924-1597
Walker Products 924-1597 Spark Plug Wire Set
4.73 Reviews
$47.99
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 G25, 1975-1975 GMC G35, 1975-1975 GMC G35, 1974-1974 Chevrolet Corvette, 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, 1973-1973 GMC Jimmy, 1972-1972 Pontiac Ventura, 1971-1973 Pontiac Ventura, 1971-1972 Chevrolet Kingswood, 1970-1972 Chevrolet El Camino
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Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1597, 35-8139, 35-8140, 2833, 9151, 9175, 136CON, 136ELE,
...View moreitem #1001PU4T
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DensoPart # 671-8012
Spark Plug Wire Set - Denso 671-8012
51 Reviews
$59.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1995-1996 AM General Hummer, 1992-1993 Chevrolet Blazer, 1992-1993 Chevrolet C1500 Suburban, 1992-1993 Chevrolet C2500 Suburban, 1992-1993 Chevrolet K1500 Suburban, 1992-1993 Chevrolet K2500 Suburban, 1992-1993 GMC C1500 Suburban, 1992-1993 GMC C2500 Suburban, 1992-1993 GMC K1500 Suburban, 1992-1993 GMC K2500 Suburban, 1992-1993 GMC Yukon, 1989-1991 Chevrolet R1500 Suburban, 1989-1991 Chevrolet R2500 Suburban, 1989-1991 Chevrolet R3500, 1989-1991 Chevrolet V1500 Suburban, 1989-1991 Chevrolet V2500 Suburban, 1989-1991 Chevrolet V3500, 1988-1993 Chevrolet C1500, 1988-1993 Chevrolet C1500, 1988-1993 Chevrolet C2500
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Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8012, 35-8109, 706, MSW1829, 6718012, 618V, 628K, 11-848M,
...View moreitem #100316A1
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Walker ProductsPart # 924-1226
Walker Products 924-1226 Spark Plug Wire Set
4.73 Reviews
$37.99
Low stock: Only 4 left
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3-year warranty
90 days free return
Fits 1991-1991 Pontiac Sunbird, 1989-1990 Pontiac LeMans, 1988-1990 Pontiac Optima, 1987-1990 Pontiac Sunbird, 1987-1989 Pontiac Grand Am, 1987-1988 Buick Skyhawk, 1987-1988 Oldsmobile Firenza, 1987-1988 Oldsmobile Firenza, 1987-1988 Oldsmobile Firenza, 1987-1987 Oldsmobile Firenza, 1987-1987 Oldsmobile Firenza, 1987-1987 Oldsmobile Firenza, 1986-1986 Pontiac Sunbird, 1985-1986 Cadillac Cimarron, 1985-1986 Chevrolet Cavalier, 1984-1985 Pontiac J2000 Sunbird, 1983-1986 Buick Skyhawk, 1983-1986 Oldsmobile Firenza, 1983-1984 Cadillac Cimarron, 1983-1984 Chevrolet S10
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Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1226, 35-4118, 35-4101, 2903, 9011, 9481, 9015, 27426,
...View moreitem #1001PP4V
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Walker ProductsPart # 924-1394
Walker Products 924-1394 Spark Plug Wire Set
4.73 Reviews
$49.99
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: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1394, 35-8105, 2927, 3103, 9062, 9065, 132, 136,
...View moreitem #1001PRH9
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Walker ProductsPart # 924-1044
Walker Products 924-1044 Spark Plug Wire Set
4.73 Reviews
$36.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1989-1990 Dodge 2000 GTX, 1989-1990 Dodge Colt, 1989-1990 Plymouth Colt, 1988-1988 Dodge Colt, 1988-1988 Plymouth Colt, 1987-1987 Dodge Colt, 1987-1987 Plymouth Colt, 1985-1987 Isuzu Impulse, 1985-1986 Dodge Colt, 1985-1985 Isuzu I-Mark, 1985-1985 Isuzu Trooper, 1984-1984 Isuzu Trooper, 1983-1987 Isuzu Pickup, 1983-1984 Chevrolet S10 Blazer, 1983-1984 GMC S15 Jimmy, 1983-1984 Isuzu Impulse, 1982-1985 Chevrolet S10, 1982-1985 GMC S15, 1982-1982 Chevrolet LUV, 1981-1984 Isuzu I-Mark
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Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1044, 35-4004, 4393, 9341, IE41, IE42, ME58, 4590,
...View moreitem #1001PQA5
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Walker ProductsPart # 924-1799
Walker Products 924-1799 Spark Plug Wire Set
4.73 Reviews
$41.99
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: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1799, 35-6153, 3125, 9495, EL-3125, 27661, 35-77695, 4638,
...View moreitem #1001PRSG
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Walker ProductsPart # 924-1395
Walker Products 924-1395 Spark Plug Wire Set
4.73 Reviews
$53.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1986-1986 GMC C3500, 1985-1986 Chevrolet Caprice, 1983-1986 GMC C2500, 1983-1986 GMC C2500 Suburban, 1983-1986 GMC Jimmy, 1983-1986 GMC Jimmy, 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
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1395, 35-8103, 35-8156, 2946, 9052, 9054, 26908, 35-87832,
...View moreitem #1001PPHU
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DensoPart # 671-8016
Spark Plug Wire Set - Denso 671-8016
51 Reviews
$52.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1987-1988 Chevrolet R30, 1987-1988 Chevrolet V30, 1987-1988 GMC R3500, 1987-1988 GMC V3500, 1985-1986 Chevrolet C10, 1985-1986 Chevrolet C10 Suburban, 1985-1986 Chevrolet C20, 1985-1986 Chevrolet C20 Suburban, 1985-1986 Chevrolet C30, 1985-1986 Chevrolet K10, 1985-1986 Chevrolet K10 Suburban, 1985-1986 Chevrolet K20, 1985-1986 Chevrolet K20 Suburban, 1985-1986 Chevrolet K30, 1985-1986 GMC C1500, 1985-1986 GMC C1500 Suburban, 1985-1986 GMC C2500, 1985-1986 GMC C2500 Suburban, 1985-1986 GMC C3500, 1985-1986 GMC K2500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
671-8016, 35-8113, MSW1273, 6718016, 628M, 11-824M, 2X1110, QW823,
...View moreitem #100313Q8
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Walker ProductsPart # 924-1362
Walker Products 924-1362 Spark Plug Wire Set
4.73 Reviews
$46.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2002-2002 Chevrolet Blazer, 2002-2002 Chevrolet Express 1500, 2002-2002 Chevrolet Express 2500, 2002-2002 Chevrolet G30, 2002-2002 Chevrolet S10, 2000-2002 Chevrolet Astro, 2000-2000 Isuzu Hombre, 1996-2001 GMC Safari, 1996-1998 Chevrolet P30, 1996-1998 GMC P3500, 1996-1997 Chevrolet Astro, 1996-1997 Chevrolet Blazer, 1996-1997 Chevrolet C1500, 1996-1997 Chevrolet Express 1500, 1996-1997 Chevrolet Express 2500, 1996-1997 Chevrolet K1500, 1996-1997 Chevrolet S10, 1996-1997 GMC C1500, 1996-1997 GMC Jimmy, 1996-1997 GMC K1500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1362, 35-6324, 35-6151, 3125, 3146, 9495, 9514, 9567,
...View moreitem #1001PQH2
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Walker ProductsPart # 924-1658
Walker Products 924-1658 Spark Plug Wire Set
4.73 Reviews
$45.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1975-1975 International 150, 1975-1975 International 200, 1975-1975 International MS, 1975-1975 International Scout II, 1974-1974 Chevrolet Corvette, 1974-1974 Chevrolet El Camino, 1974-1974 Chevrolet Impala, 1974-1974 Chevrolet Monte Carlo, 1974-1974 GMC Sprint, 1974-1974 International 100, 1974-1974 International 100, 1974-1974 International 100, 1974-1974 International 200, 1974-1974 International 200, 1974-1974 International 200, 1974-1974 International 200, 1974-1974 International MHC1310, 1973-1974 American Motors Javelin, 1973-1974 American Motors Javelin, 1973-1974 Chevrolet Bel Air
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1658, 35-8101, 35-8331, 35-8315, 2821, 9142, 102, 3129,
...View moreitem #1001PNX2
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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: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
671-6054, 35-6151, 699, MSW1783, 6716054, IX59, 746T, 756B,
...View moreitem #100315GX
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Walker ProductsPart # 924-1241
Walker Products 924-1241 Spark Plug Wire Set
4.73 Reviews
$37.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1991-1993 GMC Sonoma, 1988-1993 Chevrolet LLV, 1988-1990 Chevrolet Astro, 1988-1990 GMC Safari, 1985-1993 Chevrolet S10, 1985-1988 Chevrolet S10 Blazer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1241, 35-4117, 35-4116, 3156, 9005, 27443, L-4184, CB-223,
...View moreitem #1001PNX3
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Walker ProductsPart # 924-1528
Walker Products 924-1528 Spark Plug Wire Set
4.73 Reviews
$46.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1986-1986 Chevrolet K10, 1986-1986 Chevrolet K10 Suburban, 1986-1986 Chevrolet K10 Suburban, 1986-1986 Chevrolet K20, 1986-1986 Chevrolet K20 Suburban, 1986-1986 GMC C1500, 1986-1986 GMC K2500, 1986-1986 GMC K2500 Suburban, 1986-1986 GMC K3500, 1985-1986 Chevrolet C10, 1985-1986 Chevrolet C10 Suburban, 1985-1986 Chevrolet C10 Suburban, 1985-1986 Chevrolet C20, 1985-1986 Chevrolet C20, 1985-1986 Chevrolet C20 Suburban, 1985-1986 Chevrolet C20 Suburban, 1985-1986 Chevrolet C30, 1985-1986 Chevrolet K10, 1985-1986 Chevrolet K20 Suburban, 1985-1986 Chevrolet K30
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet Blazer
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1528, 35-8126, 35-8129, 4882, 4883, 9694, 6875, 2930,
...View moreitem #1001PTP7
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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!