Ignition Coil and Iridium Spark Plugs for Jeep Renegade (2020-2021) 2.4L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2020-2021 Jeep Renegade

What it Does: Direct OEM-spec replacement ignition service kit designed to restore peak primary spark energy, resolve high-load cylinder misfires, and stabilize idle quality on the 2.4L Tigershark powertrain.

The Stock Renegade Ignition Breakdown

Under continuous thermal load in the compact BU-platform engine bay, factory coil-on-plug units suffer from dielectric breakdown. Prolonged exposure to heat degrades internal epoxy potting and insulation, allowing secondary voltage to leak to ground rather than reaching the combustion chamber. In tandem, factory plugs experience electrode gap erosion from thousands of heat cycles, dramatically increasing the kilovolt demand on the ignition coils. This deterioration results in hesitation under tip-in, unburnt hydrocarbon build-up, erratic idle stability, and diagnostic trouble codes (P0300 through P0304).

The Engineering Solution

This service kit pairs high-dielectric coil-on-plug assemblies with precision laser-welded fine-wire iridium spark plugs. The ignition coils utilize high-grade internal copper windings and reinforced potting compounds to prevent high-voltage arcing under elevated cylinder pressures. The included iridium spark plugs require lower firing voltage while offering superior thermal conductivity and anti-fouling characteristics. Precision blade terminals and OEM-keyed connectors guarantee direct plug-and-play integration with the factory engine harness.

Technical Specifications

Compatibility

• 2020 Jeep Renegade 2.4L I4 (Sport, Latitude, Altitude, Limited, Trailhawk)
• 2021 Jeep Renegade 2.4L I4 (Sport, Latitude, 80th Anniversary, Islander, Trailhawk)

The Jeep Durability Standard

Engineered for off-road resilience, severe duty, and extended trail usage, these components withstand extreme vibration, moisture ingress, and thermal fluctuations to keep your Renegade running reliably in backcountry conditions.