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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Walker ProductsPart # 924-1512
Walker Products 924-1512 Spark Plug Wire Set
4.73 Reviews
$48.99
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3-year warranty
90 days free return
Fits 1987-1988 Chevrolet R30, 1987-1988 Chevrolet V30, 1987-1988 GMC R3500, 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 K1500, 1985-1986 GMC K2500
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1512, 35-8113, 2930, 9063, 9065, 35-87811, CB-112, L-4338,
...View moreitem #1001PP5W
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Walker ProductsPart # 924-1597
Walker Products 924-1597 Spark Plug Wire Set
4.73 Reviews
$47.99
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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: GMC
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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Walker ProductsPart # 924-1586
Walker Products 924-1586 Spark Plug Wire Set
4.73 Reviews
$39.99
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3-year warranty
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Fits 1987-1987 Chevrolet LLV, 1986-1986 Buick Somerset, 1985-1987 Chevrolet Astro, 1985-1987 GMC S15, 1985-1987 GMC S15 Jimmy, 1985-1986 GMC Safari, 1985-1986 Oldsmobile Calais, 1985-1986 Pontiac Fiero, 1985-1986 Pontiac Grand Am, 1985-1985 Buick Somerset Regal, 1984-1986 Buick Century, 1984-1986 Buick Skylark, 1984-1986 Chevrolet Camaro, 1984-1986 Chevrolet Celebrity, 1984-1986 Oldsmobile Cutlass Ciera, 1984-1986 Pontiac 6000, 1984-1986 Pontiac Firebird, 1984-1985 Chevrolet Citation II, 1984-1984 Oldsmobile Omega, 1984-1984 Pontiac Fiero
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1586, 35-4114, 35-4115, 2950, 9017, 27416, 35-77514, 748,
...View moreitem #1001PP0Y
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Walker ProductsPart # 924-1529
Walker Products 924-1529 Spark Plug Wire Set
4.73 Reviews
$47.99
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3-year warranty
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Fits 1987-1987 Buick Regal, 1987-1987 Chevrolet Camaro, 1987-1987 Chevrolet Caprice, 1987-1987 Chevrolet El Camino, 1987-1987 Chevrolet Monte Carlo, 1987-1987 GMC Caballero, 1987-1987 Pontiac Firebird, 1987-1987 Pontiac Grand Prix
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1529, 35-77821, 35-77830, 4064, 7838, 7840, 9647, 2933,
...View moreitem #1001PR6V
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Walker ProductsPart # 924-1509
Walker Products 924-1509 Spark Plug Wire Set
4.73 Reviews
$41.99
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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: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1509, 35-6142, 2915, 9042, 101, 141, 101CON, 101ELE,
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Walker ProductsPart # 924-1360
Walker Products 924-1360 Spark Plug Wire Set
4.73 Reviews
$43.99
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3-year warranty
90 days free return
Fits 1985-1986 Chevrolet C10, 1985-1986 Chevrolet C20, 1985-1986 Chevrolet G10, 1985-1986 Chevrolet G20, 1985-1986 Chevrolet G30, 1985-1986 Chevrolet K10, 1985-1986 GMC C1500, 1985-1986 GMC C2500, 1985-1986 GMC G1500, 1985-1986 GMC G2500, 1985-1986 GMC G3500, 1985-1986 GMC K1500, 1985-1985 Chevrolet Astro, 1985-1985 Chevrolet K20, 1985-1985 GMC K2500, 1985-1985 GMC Safari
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1360, 35-6128, 2914, 9034, 26648, 35-87612, 4036, 4041,
...View moreitem #1001PTW2
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Walker ProductsPart # 924-2071
Walker Products 924-2071 Spark Plug Wire Set
4.73 Reviews
$62.99
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3-year warranty
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Fits 2010-2013 Chevrolet Express Cargo, 2008-2014 Chevrolet Express 1500, 2008-2014 GMC Savana 1500, 2007-2013 Chevrolet Silverado 1500, 2007-2013 GMC Sierra 1500
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-2071, 35-6351, 3163, 9709, 3166, 8HY3166, 9723, 27734,
...View moreitem #1001PPVP
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Walker ProductsPart # 924-1433
Walker Products 924-1433 Spark Plug Wire Set
4.73 Reviews
$49.99
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3-year warranty
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Fits 1990-1994 GMC C6000 Topkick, 1990-1994 GMC C7000 Topkick, 1990-1990 Chevrolet C5500 Kodiak, 1990-1990 Chevrolet C60, 1990-1990 GMC C5000 Topkick, 1990-1990 GMC C6000, 1990-1990 GMC C7000 Topkick, 1987-1990 Chevrolet C70, 1986-1990 Chevrolet B60, 1986-1990 Chevrolet C60, 1986-1990 Chevrolet C70, 1986-1990 GMC B6000, 1986-1990 GMC C6000, 1986-1990 GMC C7000, 1986-1990 GMC C7000
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1433, 35-8108, 35-8332, 3129, 3131, 9466, 9056, 9467,
...View moreitem #1001PS3Y
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Walker ProductsPart # 924-1242
Walker Products 924-1242 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 1997-1997 Isuzu Hombre, 1996-1997 GMC Sonoma, 1996-1996 Isuzu Hombre, 1994-1997 Chevrolet S10
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1242, 35-4121, 7845, IX53, 3111, 3139, 9517, 27521,
...View moreitem #1001PRTT
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Walker ProductsPart # 924-1361
Walker Products 924-1361 Spark Plug Wire Set
4.73 Reviews
$48.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1992-1993 GMC Typhoon, 1991-1991 GMC Syclone
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Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1361, 3150, 9023, 27687, 35-77653, 4043, 7687, 9680,
...View moreitem #1001PQQ7
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Walker ProductsPart # 924-2050
Walker Products 924-2050 Spark Plug Wire Set
4.73 Reviews
$50.99
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, 2004-2007 Chevrolet C4500 Kodiak, 2004-2007 Chevrolet C5500 Kodiak, 2004-2007 Chevrolet C6500 Kodiak, 2004-2007 Chevrolet C7500 Kodiak, 2003-2009 GMC C4500 Topkick, 2003-2009 GMC C5500 Topkick, 2003-2009 GMC C6500 Topkick, 2003-2009 GMC C7500 Topkick, 2003-2006 Chevrolet Avalanche 2500, 2003-2006 Chevrolet Silverado 2500 HD, 2003-2006 Chevrolet Silverado 3500, 2003-2006 Chevrolet Suburban 2500, 2003-2006 GMC Sierra 2500 HD, 2003-2006 GMC Sierra 3500, 2003-2006 GMC Yukon XL 2500, 2003-2003 Chevrolet C4500 Kodiak
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: GMC
Item LocatedUnited States
QuantityOne Set
Part interchange
924-2050, 35-8343, 3160, 9645, 8HY3160, 27877, 48318, 4711,
...View moreitem #1001PQXV
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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.