ENA Ignition Coil & Platinum Spark Plug Wire Kit — Set of 8 with Red Wire Harness, Direct-Fit for Chevy/GMC 4.8L–6.0L

Complete 8-piece ignition coil and platinum spark plug wire kit by ENA engineered to replace UF271/41962-style components for Chevrolet, GMC and Hummer V8 4.8L–6.0L engines.

This ENA set brings together eight square ignition coils, eight platinum-tipped spark plugs and a red high-performance ignition wire harness designed as direct-fit replacements for many Chevrolet Avalanche, Savana, Sierra and Hummer H2 applications. Built to meet or exceed OE fitment and electrical characteristics, the components are intended for straightforward installation and consistent spark delivery across the firing order. The kit lists multiple equivalent part numbers (including UF271 and 41962) for cross-reference during purchase and installation.

Will this kit fit my Chevrolet, GMC or Hummer engine?

This kit covers a range of V8 engines in Chevrolet, GMC and Hummer models from late 1990s through mid-2000s. Check your vehicle year and engine displacement against the compatibility list to ensure correct match before ordering.

• Compatible models include Chevrolet Avalanche 1500 (2003–2006) with 5.3L engines.
• GMC Savana 1500/2500/3500 ranges from 2003–2005 with 4.8L, 5.3L and 6.0L variations listed.
• GMC Sierra 1500/3500 and Hummer H2 coverage spans model years and engine sizes noted in product details.
• Cross-references include UF271, 41962 and several OE part numbers to confirm fitment.

How does this ENA kit improve or restore ignition performance?

The set combines new coils, platinum spark plugs and a dedicated red wire harness to restore consistent spark energy and firing timing. Replacing worn coils and plug wires helps reduce misfires, improves starting reliability and returns throttle response closer to factory behavior.

• Platinum spark plugs offer a durable electrode surface for longer life compared with standard plugs.
• Square ignition coils match OE mounting points and electrical connections for an easy swap.
• Red ignition wires are optimized for signal transfer and heat resistance in engine bay conditions.
• Kit approach ensures the entire ignition path is refreshed at once for balanced cylinder performance.

What should I expect during installation and maintenance?

Installation is intended to be straightforward for anyone with basic automotive experience and common hand tools. ENA engineered the components to align with original equipment locations and connectors, minimizing modification needs; torque specs and installation order should follow factory service guidance.

• Swap coils one at a time to preserve cylinder order and avoid wire confusion.
• Use a torque wrench on spark plugs to manufacturer torque to prevent over-tightening.
• Inspect coil boots and wire routing for clearance near exhaust heat and moving components.
• Replace all related ignition components together for uniform performance and simplified troubleshooting.

What warranty and quality backing does ENA provide?

ENA includes a one-year limited warranty covering manufacturing defects under normal use. The parts are produced and tested to meet original equipment expectations for fit and function, with quality checks aimed at reliability under typical driving conditions.

• 1-year limited warranty included with the kit.
• Manufactured for both OE replacement and maintenance scenarios.
• Multiple OE part number equivalents provided for dealer and aftermarket cross-reference.

Who is this for: This ENA ignition coil and platinum spark plug wire set is made for owners and mechanics servicing Chevrolet Avalanche, GMC Savana/Sierra and Hummer H2 vehicles with 4.8L, 5.3L or 6.0L V8 engines who want a full ignition-system refresh with direct-fit replacements. It suits DIY enthusiasts comfortable with basic engine work, independent repair shops looking for dependable aftermarket options, and fleet technicians aiming to restore reliable starts and consistent cylinder performance across multiple vehicles.