X4XZ UF262 Ignition Coil Kit with Double Iridium Spark Plugs & 10.2mm Wires — 8-Cylinder Direct-Fit for GM 5.3L/6.0L

Complete eight-cylinder ignition kit combining UF262 ignition coils, double-iridium 41962 spark plugs, and 10.2mm 748UU spark plug wires for direct-fit replacement on specified GM trucks and SUVs.

If your V8 vehicle is showing rough idle, reduced throttle response, or intermittent misfires, this X4XZ kit delivers a full ignition-system refresh in one purchase. The set pairs OE-style UF262 coils with long-life iridium plugs and heat-resistant silicone wires, plus wire buckles to keep routing neat. It’s designed for direct compatibility with many Chevy, GMC, Cadillac and Hummer 6.0L/5.3L and related V8 applications listed below, so you can replace all eight ignition circuits at once and restore consistent spark delivery.

Which vehicles will these parts fit?

This kit targets GM full-size trucks and SUVs from late 1990s through mid-2000s with specific V8 engines. Check the compatibility list to confirm fit for your model year and drivetrain before ordering.

• Chevy: Avalanche, Express, Silverado (1500/2500/3500), Suburban, Tahoe (1999–2007 ranges).
• GMC: Sierra, Savana, Yukon, Yukon XL, select 2000–2007 models.
• Also listed: Cadillac Escalade (2002–2006 6.0L) and Hummer H2 (2003–2006 6.0L).

How do these components improve engine performance?

Reliable ignition components promote consistent combustion and smoother running without promising specific power gains. X4XZ uses iridium electrodes for longer service life, coils engineered to OE specs for stable spark energy, and silicone-insulated wires to resist heat and leakage.

• Iridium plugs: fine electrodes for steady, efficient sparking and extended longevity.
• UF262 coils: OE-compatible fit and electrical output to restore proper ignition timing response.
• 10.2mm wires: high-temperature silicone reduces crossfire and energy loss under load.

What’s included and how easy is installation?

The package supplies everything needed for an 8-cylinder ignition refresh except a printed manual. Components are made to match or improve on OE dimensions so they install using standard tools; wire buckles help maintain tidy routing and prevent tangles.

• Included: 8 × UF262 ignition coils, 8 × 41962 iridium spark plugs, 8 × 748UU 10.2mm spark plug wires, and 6 wire buckles.
• No paper manual included — basic mechanical experience or professional installation recommended.
• Direct-replace design minimizes modifications and fitment issues when matched to compatible models.

How durable are these parts and what support is available?

Materials were selected for endurance in high-heat engine bays: iridium electrodes, ceramic insulators, silicone wire jackets and OE-grade coil housings. X4XZ provides a one-year limited product service window and customer support for installation or quality concerns.

• Iridium plugs rated for long service life and consistent spark over many kilometers.
• Silicone wires resist high temperatures and reduce leakage risk.
• One-year product service and 24-hour customer support for post-sale issues.

Who is this for: This kit is aimed at owners of compatible GM trucks and SUVs who want to replace all eight ignition circuits at once—either to remedy misfires and rough running or as preventative maintenance. It’s a good fit for mechanically comfortable DIYers and technicians seeking OE-style components with enhanced durability, bundled for convenience and tidy installation.