Ignition Coil and Iridium Spark Plugs for Dodge Caliber (2007-2012) 2.0L 2.4L

Direct-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2007-2012 Dodge Caliber

What it Does: This complete direct-replacement ignition overhaul kit delivers four high-output coil-on-plug boots and four fine-wire iridium spark plugs to eliminate misfires, stabilize idle, and restore peak combustion efficiency in 2.0L and 2.4L World Engine platforms.

The Stock Caliber Ignition Breakdown

Factory ignition coils on the PM chassis Caliber suffer severe thermal degradation from continuous heat cycling in the tight engine bay. Over time, the internal primary and secondary copper windings develop micro-fractures, while the dielectric epoxy breaks down, causing secondary voltage leakage. Paired with aged standard plugs exhibiting excessive gap erosion, this degradation leads to unburned hydrocarbon build-up, erratic cold starts, sluggish throttle response, and catastrophic catalyst-damaging P0300-series misfire codes.

The Engineering Solution

This ignition kit integrates reinforced coil-on-plug assemblies engineered with high-conductivity oxygen-free copper windings and direct-fit blade terminal connectors to resist heat soak and voltage drop. The paired iridium spark plugs feature laser-welded, ultra-fine center electrodes that require lower strike voltages while resisting thermal shock and spark erosion. The result is rapid flame-front propagation, consistent high-RPM energy transfer, and a dependable factory idle.

Technical Specifications

Compatibility

• 2007-2012 Dodge Caliber SE (2.0L L4)
• 2007-2012 Dodge Caliber SXT (2.0L L4)
• 2007-2012 Dodge Caliber R/T (2.4L L4)
• 2011-2012 Dodge Caliber Mainstreet / Express / Heat / Rush / Uptown (2.0L & 2.4L L4)

The Dodge Reliability Standard

Engineered to withstand daily commuter punishment and prolonged thermal loads, this ignition package ensures zero check-engine lights, rapid cold-start cranking, and consistent power delivery across the entire rev band.