8Pcs 48322 Spark Plug Wires For 1999-2006 CHEVY GMC LS1 VORTEC 4.8 5.3 6.0L

8Pcs 48322 Spark Plug Wires for Chevy GMC LS1 Vortec 4.8 5.3 6.0L

This set of 8 spark plug wires, cross-referenced to 48322, carries ignition spark from the coils to the plugs on 1999-2006 Chevy and GMC LS1 Vortec 4.8, 5.3, and 6.0L engines.

Overview

This 8-piece spark plug wire set is built to replace worn ignition leads on 1999-2006 Chevy and GMC LS1 Vortec 4.8, 5.3, and 6.0L engines. The wires restore consistent spark delivery for smoother idle, stronger starts, and reliable throttle response. It suits owners doing a tune-up or chasing a misfire code on their truck or SUV.

Built For Performance

• Eight wires matching the LS1 Vortec cylinder count
• Cross-reference 48322 for interchange lookup
• Boots sized for coil and plug terminal fitment
• Insulated jacket resists engine bay heat
• Pre-cut lengths for straightforward routing

Fits These Machines

• for Chevy and GMC trucks with 4.8L Vortec engines
• for Chevy and GMC trucks with 5.3L Vortec engines
• for Chevy and GMC trucks with 6.0L Vortec engines
• for 1999-2006 model year LS1 Vortec applications

On-The-Job Use

• Replacing cracked or high-resistance ignition wires
• Routine tune-up alongside plugs and filters
• Diagnosing and clearing misfire conditions
• Restoring cold start and idle quality

Specs At A Glance

Good To Know

Q: Should I replace plugs at the same time? A: Yes, pairing new wires with fresh plugs keeps spark delivery consistent and avoids pulling the wires twice.

Q: How do I confirm this set fits my engine? A: Check the 48322 cross-reference and your engine displacement against the 4.8, 5.3, or 6.0L LS1 Vortec listing before ordering.

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