A-Premium 8mm Spark Plug Wires Set of 8 for V8 GM Trucks & SUVs — OE Fit, Heat‑Resistant

A-Premium 8mm spark plug wires set of 8 is a direct-fit ignition wire kit engineered for V8 GM trucks and SUVs to restore reliable spark delivery and smoother running.

These ignition wires replace worn or damaged leads on many Chevrolet, GMC, Cadillac and Hummer V8 models. The set includes eight 8mm-diameter wires designed to match OE routing and resist electrical interference, heat, and abrasion. Included reference numbers and a one-year unlimited-mileage warranty help ensure you get the correct parts and support after purchase.

Which vehicles will these wires fit?

The kit is built for V8 GM platforms across model years listed by A-Premium. It fits dozens of Chevrolet and GMC pickups and SUVs, plus Cadillac Escalade and Hummer H2 variants, when your engine uses 8mm-style plug wires and the specified lengths.

• Chevrolet Silverado/Tahoe/Suburban/Avalanche 1999–2017 V8 applications
• GMC Sierra/Yukon/K25 series 1999–2019 V8 vehicles
• Cadillac Escalade and Escalade ESV/EXT 1999–2019 V8 models
• Hummer H2 2006–2009 V8 fitment

How do these wires improve ignition performance?

Replacing aged or cracked wires restores consistent spark energy to each cylinder, which helps reduce misfires and rough idle caused by leakage or poor conductivity. The 8mm core and insulation are selected to balance flexibility with electrical shielding.

• 8mm diameter conductor for stable spark transfer
• Insulation resists heat and engine-bay abrasion
• Designed to limit radio-frequency interference with electronics
• Pre-measured lengths match common V8 routing for easier installation

What should I check before ordering this wire set?

Confirm your engine is a V8 and compare the required wire lengths to the kit details—A-Premium notes the Silverado 1500 5.3L uses a 12" wire in some positions, not an 8" one. Also cross-check the listed reference numbers to verify compatibility with your vehicle's existing part numbers.

• Verify engine is V8 and model year appears in the fitment lists
• Check critical length note for Silverado 1500 5.3L (12" wire requirement)
• Match existing part numbers: 48322, 48322R, 7831, M8-48322
• Inspect boots and terminals on your vehicle to confirm plug-style compatibility

What warranty and support come with the kit?

A-Premium backs this ignition wire set with a one-year unlimited-mileage guarantee covering workmanship and materials. That support helps when a part fails prematurely or when you need to confirm fitment after installation.

• One-year unlimited-mileage warranty from A-Premium
• Access to A-Premium’s customer support for fitment questions
• Reference numbers included for parts lookup and verification
• Sold as a complete set of eight wires to service all cylinders at once

Who is this for: This A-Premium set is for DIY mechanics and professional technicians who maintain V8 Chevrolet, GMC, Cadillac or Hummer trucks and SUVs and need a complete, OE-style replacement for worn spark plug wires. Choose this kit if you want matched lengths for all eight cylinders, clear compatibility references, and a backed warranty for peace of mind when swapping ignition leads.