Ignition Coil + Iridium Spark Plugs for Ram 1500 (2011-2024) 5.7L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2011-2024 Ram 1500

What it Does: The ignition coil and iridium spark plug kit restores secondary voltage delivery and combustion efficiency on the 2011-2024 Ram 1500 5.7L to eliminate cylinder misfires, rough idle, and unburnt fuel loss.

The Stock Ram 1500 Secondary Ignition Breakdown

Factory coil-on-plug units seated within the recessed cylinder heads of the 5.7L HEMI endure intense heat-soak cycles. Over time, thermal fatigue degrades the internal dielectric epoxy potting and copper winding insulation, causing high-voltage arcing, internal shorting, and coil degradation under sustained towing loads. In tandem, factory plug gap erosion increases secondary circuit resistance, overloading coil drivers and precipitating P0300-series misfire codes.

The Engineering Solution

This service kit features high-dielectric epoxy-potted coils engineered to prevent punch-through insulation breakdown under continuous thermal stress. Matched with sixteen fine-wire iridium center electrode spark plugs, this configuration reduces the required ionization voltage across the gap. The wear-resistant iridium alloy maintains precise spark gaps over extended operating intervals, ensuring optimal flame kernel propagation, stable combustion chamber pressures, and complete burn characteristics under heavy throttle load.

Technical Specifications

Compatibility

• 2011-2018 Ram 1500 5.7L HEMI V8 (DS Chassis)
• 2019-2024 Ram 1500 Classic 5.7L HEMI V8 (DS Chassis)
• 2019-2024 Ram 1500 5.7L HEMI V8 eTorque / Standard (DT Chassis)

Frequently Asked Questions

Does this fit the DS and DT 1500?
Yes, this is a direct fit for the 2011-2024 Ram 1500 equipped with the 5.7L HEMI engine across both 4th and 5th generation platforms.

Why are there 16 spark plugs for an 8-cylinder engine?
The 5.7L HEMI cylinder head incorporates a twin-spark dual-plug architecture per cylinder to promote complete flame propagation and eliminate pre-ignition knock.

The Ram Heavy-Duty Standard

Engineered for severe duty cycles and sustained hauling, this ignition package delivers reliable arc stability to support maximum rated payload and towing capacity without voltage quenching.