Ignition Coil & Spark Plug for GMC Savana 1500 2500 3500 Van (2008-2016) V8 (Round Style)

High-Energy Ignition Coil & Spark Plug Kit for 2008-2016 GMC Savana

Upgrades the factory ignition system with 32,000V round-style coil packs, copper core wires, and precision spark plugs to eliminate misfires and restore heavy-duty towing power.

The Stock Gen IV V8 Ignition Degradation

The OEM ignition system in the GMT610 platform degrades significantly under extreme engine bay temperatures and continuous heavy loads, especially in commercial fleet vans. Over prolonged thermal cycling, the factory epoxy resin within the coil packs breaks down and cracks. This leads to internal arcing, significantly increased electrical resistance, and a weak, inconsistent spark. Mechanics frequently trace rough idling, poor fuel economy, under-load hesitation, and P0300-series misfire codes back to these deteriorated coils failing to jump the spark gap under high cylinder pressures.

The Engineering Solution

This comprehensive ignition overhaul addresses thermal breakdown by utilizing high-performance round-style coils engineered with a heat-resistant epoxy internal construction and premium copper wire internals. Delivering an output of up to 32,000V, these direct-replacement coils generate 20% more spark energy than standard OE units. The optimized 61:1 turns ratio and precise 0.660-ohm primary resistance guarantee a faster saturation time and a hotter, longer spark duration. Paired with high-conductivity spark plug wires and performance plugs, this complete system prevents spark blowout during heavy payload hauling, ensuring complete combustion, stabilized idle, and restored throttle response. Note: This kit replaces round body coils (UF414/D514A) only; verify coil shape prior to installation.

Technical Specifications

Compatibility

• IMPORTANT: Only applicable to Round-Style coils (Replaces UF414/D514A). Not suitable for square coils (UF413/D510C).
• Cadillac Escalade
• Chevrolet Avalanche
• Chevrolet Silverado
• Chevrolet Suburban
• Chevrolet Express
• Chevrolet Tahoe
• Chevrolet Trailblazer
• GMC Savana
• GMC Yukon
• Hummer H3

The GMC Fleet Standard

Commercial workhorses and heavy-duty tow rigs demand relentless, all-weather reliability. By eliminating high-resistance ignition weak points, you ensure maximum torque delivery, consistent payload performance, and thousands of maintenance-free miles without the dreaded blinking Check Engine Light.