8x Square Ignition Coil & Spark Plug Wire Set For Chevy GMC 4.8L 5.3L 6.0L 8.1L

Square Ignition Coil & Spark Plug Wire Set for Chevy GMC

This eight-piece ignition coil and spark plug wire set for Chevy and GMC 4.8L, 5.3L, 6.0L, and 8.1L engines delivers the spark energy needed to fire each cylinder cleanly and restore smooth running.

Overview

This square ignition coil and spark plug wire set replaces the coil packs and plug leads on Chevy and GMC V8 trucks and SUVs. Each square ignition coil produces the high-voltage spark that ignites the air-fuel mixture, while the wire set carries that current to the plugs. A practical choice for owners chasing a misfire or refreshing tired ignition components.

Built For Performance

• Set includes eight square-style ignition coils for V8 fitment
• Matching spark plug wire set with boots for each coil and plug
• Square coil body matches the factory mounting footprint
• Coil housings sealed to resist heat and underhood moisture
• Wires constructed for consistent conductivity and noise suppression

Fits These Machines

• for Chevy and GMC trucks with 4.8L V8
• for Chevy and GMC trucks with 5.3L V8
• for Chevy and GMC trucks with 6.0L V8
• for Chevy and GMC trucks with 8.1L V8

On-The-Job Use

• Replacing failed coils that cause misfire codes or rough idle
• Full ignition tune-up alongside new spark plugs
• Servicing high-mileage Chevy and GMC V8 work trucks
• Restoring smooth acceleration and fuel economy on aging ignition systems

Specs At A Glance

Good To Know

Q: How do I know if my coils or wires need replacing? A: Common signs include misfire codes, rough idle, and poor acceleration. Inspect the coil boots and wire ends for cracks or burns.

Q: Can I install this set myself? A: The coils and wires mount at the factory locations with basic hand tools. Work one cylinder at a time to keep the firing order straight.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.