Ignition Coil and Iridium Spark Plugs for RAM ProMaster City (2020-2021) 2.4L

OEM-Grade Ignition Coil and Iridium Spark Plug Kit for 2020-2021 RAM ProMaster City

What it Does: Restores factory secondary ignition output and optimal flame front propagation by replacing degraded coil packs and worn electrode spark plugs on the 2.4L Tigershark engine.

The Stock ProMaster City Secondary Ignition Breakdown

Under continuous commercial duty cycles and stop-and-go fleet operating conditions, the factory coil-on-plug units in the 2.4L MultiAir setup suffer from severe thermal degradation. Heat soak breaks down the internal epoxy potting and stresses winding insulation, resulting in intermittent spark leakage, erratic secondary voltage delivery, rough idling, and recurring P0300-P0304 misfire diagnostic trouble codes under loaded acceleration.

The Engineering Solution

This direct-fit overhaul kit pairs four reinforced coil-on-plug assemblies with matching fine-wire iridium core spark plugs. The coils utilize high-purity internal copper windings and heavy-duty dielectric silicone boots to prevent high-voltage arcing across operating temperatures. Paired with corrosion-resistant, erosion-proof iridium plugs, the kit maintains precise gap tolerances, ensuring reliable cylinder combustion and efficient fuel burn under heavy commercial cargo loads.

Technical Specifications

Compatibility

• 2020 RAM ProMaster City Base / Tradesman / SLT (Cargo Van & Passenger Wagon) 2.4L L4 Gas
• 2021 RAM ProMaster City Base / Tradesman / SLT (Cargo Van & Passenger Wagon) 2.4L L4 Gas

The RAM Fleet-Grade Durability Standard

Engineered to handle the continuous duty demands of commercial fleet logistics, this ignition service package delivers cold-start reliability, consistent torque delivery, and protection against fuel dilution.