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GMC K15 Spark Plug Wires and Ignition Wiring
This page brings together spark plug wires and ignition wiring for the GMC K15, covering model years 1975–1978. The range includes complete wire sets, individual spark plug wires, and boot kits suited to the era of these trucks. Select your year above and we'll show only the spark plug wires and ignition wiring that fit your GMC K15. Fitment is checked against our vehicle data for every part listed.
31 - 50 of 50 results
Best Seller
MSD 5560 Street-Fire Spark Plug Wire Set for Big Block Chevy 454 HEI
Part: 5560
Vehicle Specific
$81.95
In Stock (7)
Best Seller
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MSD 30829 8.5mm Super Conductor Spark Plug Wire Set Big Block Chevy Crab Cap
Part: 30829
Vehicle Specific
$218.95
In Stock (10+)
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MSD 31609 Super Conductor 8.5mm Spark Plug Wire Set Big Block Chevy Socket Distributor Cap
Part: 31609
Vehicle Specific
$218.95
In Stock (10+)
Representative Photo, actual item may vary
Moroso 9867M Mag-Tune Spark Plug Wire Set 8mm SBC Small Block Chevy Under Header 90 Degree HEI
Part: 9867M
Vehicle Specific
$39.87
In Stock (6)
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In Stock (10+)
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Moroso 73622 Ultra 40 Race Wire High-Performance Spark Plug Wire
Part: 73622
Vehicle Specific
$254.84
In Stock (5)
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Moroso 9766M Mag-Tune Sleeved Spark Plug Wire Set Big Block Chevy HEI 90 Degree Under Header
Part: 9766M
Vehicle Specific
$123.60
2 left at this price
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4 left at this price
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Moroso 9762M Mag-Tune Spark Plug Wires 8.0mm HEI 90 Degree Small Block Chevy
Part: 9762M
Vehicle Specific
$123.60
3 left at this price
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MSD 35599 Super Conductor 8.5mm Spark Plug Wire Set Small Block Chevy HEI
Part: 35599
Vehicle Specific
$145.95
In Stock (10+)
FAST 255-2407 FireWire Small Block Chevy Under-Header Spark Plug Wire Set
Part: 255-2407
Vehicle Specific
$92.95
3 left at this price
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FAST 295-2416 FireWire Big Block Chevrolet Under-Header Spark Plug Wire Set with Heat Sleeve
Part: 295-2416
Vehicle Specific
$203.95
In Stock (10+)
FAST 255-2416 FireWire Big Block Chevy Under-Header Spark Plug Wire Set
Part: 255-2416
Vehicle Specific
$77.95
Ships from manufacturer
NGK 51434 Spark Plug Wire Set RC-GMX019 Ferrite Mag Core Silicone
Part: 51434
Vehicle Specific
$29.67
In Stock (7)
3 left at this price
In Stock (9)
NGK 51374 Spark Plug Wire Set RC-GMZ004 8mm Magnetic Core Silicone
Part: 51374
Vehicle Specific
$30.47
In Stock (10)
NGK 51373 Spark Plug Wire Set Ultra-Low Resistance Mag Core Ignition Wires
Part: 51373
Vehicle Specific
$32.68
1 left at this price
NGK 51417 RC-GMX006 Spark Plug Wire Set 7mm Magnetic Core Silicone
Part: 51417
Vehicle Specific
$22.09
1 left at this price
3 left at this price
What's here for your GMC K15
- Spark Plug Wire Sets — complete replacement sets in black and performance configurations
- Individual Spark Plug Wires — single replacement wires for targeted repairs
- Single Lead Spark Plug Wires — universal and header-specific leads, including ceramic-coated options
- Spark Plug Boot Kits — chrome and ceramic boot kits for sealing and protecting wire ends
The widest selection here comes from MSD, Moroso, TAYLOR, and ACDelco, covering a broad range of styles and construction types for 1975–1978 applications. Other categories GMC K15 owners shop for: GMC K15 Steering Wheels, GMC K15 Exhaust and Tail Pipes and GMC K15 Doors and Door Parts, or browse all GMC K15 parts and accessories.