Ignition Coil & Iridium Spark Plugs for Ram ProMaster 1500 2500 3500 (2014-2021) 3.6L

High-Output Ignition Coil & Iridium Spark Plugs for 2014-2021 Ram 1500, 2500, 3500, ProMaster (3.6L Pentastar)

Restores lost power, improves fuel economy, and ensures consistent spark delivery under heavy engine load. This comprehensive ignition overhaul kit directly replaces aging OEM coils and plugs to eliminate misfires and rough idling commonly associated with high-mileage Pentastar engines.

The Stock 3.6L Pentastar Ignition Weakness

The factory ignition system on the 3.6L Pentastar V6, especially in high-duty cycle applications like the ProMaster and Ram trucks, is highly susceptible to thermal degradation over time. As the OEM coil packs age, the internal epoxy breaks down due to sustained heat soak from the cylinder heads. This breakdown increases electrical resistance, leading to weak spark propagation, intermittent misfires under load, and a noticeable drop in throttle response. Furthermore, standard factory spark plugs experience electrode wear over tens of thousands of miles, increasing the spark gap beyond factory tolerances. This forces the already weakening coils to work harder to jump the gap, creating a destructive cycle that ultimately triggers P0300-series misfire codes and compromises towing capacity or payload efficiency.

The Engineering Solution

This replacement kit resolves these inherent ignition issues by utilizing upgraded ignition coils paired with advanced iridium-tipped spark plugs. The coils are manufactured with high-dielectric epoxy and heavy-gauge copper windings to maximize voltage output and resist thermal breakdown, even in the confined, heat-retaining engine bay of a ProMaster van. The included iridium spark plugs feature a fine-wire center electrode and a laser-welded ground electrode, requiring significantly less voltage to generate a spark while resisting carbon fouling. This optimized arc propagation ensures complete combustion of the air-fuel mixture, resulting in a stabilized idle, restored low-end torque for towing, and prevention of unburnt fuel damaging the catalytic converters. The precise OEM-spec boot geometry guarantees a weatherproof seal against moisture and oil intrusion.

Technical Specifications

Compatibility

• 2014-2021 Ram ProMaster 1500 (3.6L V6)
• 2014-2021 Ram ProMaster 2500 (3.6L V6)
• 2014-2021 Ram ProMaster 3500 (3.6L V6)
• 2014-2021 Ram 1500 (3.6L V6)

The Ram Durability Standard

Ram trucks and ProMaster commercial vans are engineered for relentless daily abuse, heavy payloads, and long-haul towing. Maintaining a robust, misfire-free ignition system is critical to preserving the operational uptime and hauling capabilities of your 3.6L-powered fleet or personal workhorse.