High Performance Ignition Coil for Chevrolet Silverado 1500 2500 HD 3500 HD (2007-2019) 4.8L 5.3L 6.0L 6.2L

Upgraded Ignition Coil Set for 2007-2019 Chevrolet Silverado (Gen IV/V V8 / GMT900 & K2XX)

Upgrades the factory ignition system with higher secondary voltage output to eliminate under-load misfires, improve idle stability, and support heavy-duty towing applications.

The Stock Silverado Ignition Degradation

The OEM ignition coils on the 2007-2019 Gen IV and Gen V GM V8 engines (including the 4.8L, 5.3L, 6.0L, and 6.2L blocks) are notorious for degrading under sustained heat cycles. The factory coil packs rely on standard winding materials and sub-par epoxy potting compounds that eventually break down over tens of thousands of miles. This thermal degradation leads to internal micro-arcing, weakened spark energy, and increased primary resistance. When the spark output drops, the engine experiences under-load misfires, rough idling, hesitation during acceleration, and reduced fuel economy. This becomes exceptionally problematic when hauling heavy loads or navigating steep grades, as the increased cylinder pressures require maximum spark energy to prevent blow-out and ensure complete, efficient combustion.

The Engineering Solution

The UF414 upgraded ignition coils resolve these thermal and electrical shortcomings by utilizing high-grade copper wire for both primary and secondary windings, significantly increasing the internal turns ratio. This redesign ensures a stronger magnetic field and yields a much higher secondary voltage output compared to the OEM units. Furthermore, the coils are sealed using an advanced, high-temperature dielectric epoxy that effectively resists heat soak from the cylinder block and exhaust manifolds. The heavy-duty silicone boots provide superior flashover protection, preventing voltage leaks to the cylinder head casting. By delivering a fatter, hotter spark, these upgraded coils ensure total air/fuel mixture combustion even under peak cylinder pressures, resulting in a smoother powerband, restored torque, and reliable ignition timing during demanding operational cycles.

Technical Specifications

Compatibility

• 2007-2019 Chevrolet Silverado 1500 (4.8L V8)
• 2007-2019 Chevrolet Silverado 1500 (5.3L V8)
• 2007-2019 Chevrolet Silverado 1500 (6.0L V8)
• 2007-2019 Chevrolet Silverado 1500 (6.2L V8)
• 2007-2019 Chevrolet Silverado 2500 HD (6.0L V8)
• 2007-2019 Chevrolet Silverado 3500 HD (6.0L V8)

The Chevrolet Heavy-Duty Standard

Engineered to withstand the severe duty cycles of towing and heavy payload hauling. These ignition coils ensure your Silverado maintains consistent pulling power, precise ignition timing, and unwavering reliability whether on the job site or navigating steep highway grades.