Ignition Coil and Iridium Spark Plugs for Cadillac ATS (2013-2017) 2.5L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2013-2017 Cadillac ATS

What it Does: Delivers a complete high-conductivity primary and secondary ignition refresh to restore combustion efficiency, eliminate cylinder misfires, and stabilize idle across all four cylinders.

The Stock ATS Ignition Breakdown

The naturally aspirated 2.5L LCV engine operates with tight direct-injection combustion tolerances. Over time, factory coil-on-plug boots and epoxy insulation degrade under sustained underhood thermal cycling. This dielectric breakdown leads to secondary voltage leakage, micro-arcing, carbon tracking, and high-load misfires (DTC P0300-P0304). Paired with eroded factory plug gaps, weak spark energy degrades fuel atomization and creates rough cold starts.

The Engineering Solution

This complete tune-up kit replaces all four ignition packs and spark plugs simultaneously. Coils are manufactured with high-grade copper primary and secondary windings encased in thermally stable potting epoxy, ensuring consistent high-voltage output without internal dielectric breakdown. Paired with fine-wire iridium spark plugs offering superior thermal conductivity, lower arc voltage requirements, and high anti-fouling resistance, this kit ensures crisp throttle response and clean combustion.

Technical Specifications

Compatibility

• 2013 Cadillac ATS Base / Luxury 2.5L L4 - Gas
• 2014 Cadillac ATS Base / Luxury 2.5L L4 - Gas
• 2015 Cadillac ATS Base / Luxury 2.5L L4 - Gas
• 2016 Cadillac ATS Base / Luxury 2.5L L4 - Gas
• 2017 Cadillac ATS Base / Luxury 2.5L L4 - Gas

The Cadillac Precision Standard

Engineered to exact OEM resistance and dwell parameters, these ignition components integrate seamlessly with the factory ECM to maintain zero check engine lights and factory-smooth idle quality.