High Performance Ignition Coil for GMC Yukon (2007-2014) 4.8L 5.3L 6.0L 6.2L

High-Output Ignition Coil Pack Set for 2007-2014 GMC Yukon (Gen IV LS / GMT900)

Direct-fit performance ignition coil upgrade designed to eliminate high-load misfires and maximize spark energy for GMT900 V8 platforms.

The Stock Yukon Ignition Weakness

Factory Gen IV LS ignition coils degrade over time due to extreme thermal cycling and localized engine bay heat soak. The OEM internal epoxy potting breaks down, increasing internal electrical resistance across the secondary windings. This degradation results in weak spark delivery under heavy load, leading to part-throttle hesitation, rough idle, increased emissions, and cylinder misfires, especially when towing heavy loads or operating in high ambient temperatures.

The Engineering Solution

These UF414 high-performance replacement coils resolve OEM ignition shortcomings by utilizing upgraded primary and secondary copper windings wrapped around a highly conductive, low-resistance internal magnetic core. This advanced internal construction significantly boosts primary voltage output and spark duration compared to standard factory units. The exterior housing is molded from a high-dielectric polymer resin to resist long-term thermal degradation and prevent voltage leaks or cross-firing. By delivering a hotter, more consistent spark event, these upgraded coils ensure complete combustion, stabilizing idle vacuum, improving throttle response, and maintaining peak efficiency across the entire RPM band. The kit includes 8 coils for a complete engine overhaul.

Technical Specifications

Compatibility

• 2007-2014 GMC Yukon 4.8L V8
• 2007-2014 GMC Yukon 5.3L V8
• 2007-2014 GMC Yukon 6.0L V8
• 2007-2014 GMC Yukon 6.2L V8

The GMC Towing Standard

GMT900 SUVs demand absolute operational reliability when towing or hauling heavy payloads. Upgrading to high-output ignition coils ensures consistent pulling power and complete combustion under heavy load, eliminating the risk of torque loss or flashing diagnostic trouble codes on the highway.