Ignition Coil and Iridium Spark Plugs for Dodge Caliber (2007-2009) 1.8L

Direct-Fit Ignition Coil & Iridium Spark Plug Kit for 2007-2009 Dodge Caliber

What it Does: Restores factory secondary ignition output, eliminates misfires, and stabilizes engine idle across all operating load ranges in 1.8L World Gas engines.

The Stock Caliber Ignition Breakdown

Factory coil-on-plug packs on the Chrysler PM platform endure extreme thermal cycling in the recessed spark plug wells. Over time, heat soak degrades the internal epoxy potting and compromises the primary copper windings, leading to insulation breakdown, high-voltage leakage, and unmetered misfires. Concurrently, factory standard copper or worn nickel spark plugs suffer electrode erosion, widening the plug gap and forcing aging coil packs to work past their dielectric breakdown limits.

The Engineering Solution

This full tune-up assembly combines four heavy-duty coil packs featuring high-conductivity internal copper windings with four pre-gapped iridium spark plugs. The coils utilize reinforced dielectric housings and factory-spec blade terminals to maintain stable peak secondary voltage under load. The fine-wire iridium center electrodes resist thermal degradation and electrical erosion, ensuring a concentrated spark kernel, rapid flame propagation, and complete combustion across the cylinder charge.

Technical Specifications

Compatibility

• 2007 Dodge Caliber: 1.8L L4 Gas (SE, SXT)
• 2008 Dodge Caliber: 1.8L L4 Gas (SE, SXT)
• 2009 Dodge Caliber: 1.8L L4 Gas (SE, SXT)

The Dodge Caliber Reliability Standard

Engineered to withstand daily commuter stop-and-go duty cycles and extreme thermal loads without throwing P0300-series diagnostic trouble codes or degrading fuel efficiency.