Ignition Coil and Iridium Spark Plugs for Jeep Renegade (2015-2018) 1.4L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2015-2018 Jeep Renegade

Direct Replacement Ignition Upgrade: Restores high-voltage spark delivery, stabilizes engine idle, and eliminates cylinder misfires across all four cylinders in the turbocharged 1.4L MultiAir engine.

The Stock Renegade Ignition Breakdown

The factory ignition coils on the 1.4L MultiAir FIRE engine frequently suffer from thermal degradation due to high under-hood temperatures and turbocharger heat soak. Over time, internal epoxy insulation breaks down, causing dielectric breakdown, micro-arcing, and intermittent primary winding resistance drift. Combined with worn factory spark plug gaps eroding under boost pressure, this degradation leads to unburned hydrocarbon build-up, erratic idle, loss of low-end torque, and recurring P0300-P0304 misfire codes under load.

The Engineering Solution

This complete service pack combines four high-output coil-on-plug assemblies with four fine-wire iridium spark plugs. The coils feature reinforced internal copper windings and high-dielectric epoxy potting to withstand severe thermal cycling without voltage leakage. Direct-fit blade terminals ensure low electrical contact resistance, while the high-melting-point iridium center electrodes resist high-boost spark erosion, maintaining precise gap geometry and consistent ignition kernel propagation for efficient combustion.

Technical Specifications

Compatibility

• 2015 Jeep Renegade 1.4L Turbo I4 (BU)
• 2016 Jeep Renegade 1.4L Turbo I4 (BU)
• 2017 Jeep Renegade 1.4L Turbo I4 (BU)
• 2018 Jeep Renegade 1.4L Turbo I4 (BU)

The Jeep Durability Standard

Engineered to handle rugged trail conditions, sustained boost loads, and all-weather duty, this ignition kit delivers reliable cold starts and consistent high-load throttle response without check-engine lights.