Ignition Coil and Iridium Spark Plugs for Cadillac ATS (2016-2019) 3.6L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2016-2019 Cadillac ATS

Direct Ignition Refresh: Restores peak secondary ignition voltage, eliminates under-load misfires, and stabilizes idle quality across all cylinders on the 3.6L V6 powertrain.

The Stock ATS Ignition Breakdown

Direct-injected high-compression engines subject ignition components to extreme thermal stress and high cylinder pressures. Over time, the factory coil packs suffer from dielectric breakdown and micro-cracking in the epoxy resin casing. Degraded primary and secondary copper windings increase internal resistance, causing weak spark delivery, delayed flame front propagation, rough idling, elevated fuel consumption, and high-RPM misfire trouble codes under heavy acceleration.

The Engineering Solution

This 6-cylinder refresh kit pairs high-output coil-on-plug assemblies with erosion-resistant fine-wire iridium spark plugs for balanced combustion. Built with premium thermal-resistant internal copper windings, durable silicone boots, and precision blade terminals, each coil ensures fast charging and stable discharge. The matched iridium plugs resist gap widening and thermal shock, delivering reliable arc generation, crisp throttle response, and smooth power delivery throughout the rev range.

Technical Specifications

Compatibility

• 2016 Cadillac ATS 3.6L V6 (Sedan / Coupe)
• 2017 Cadillac ATS 3.6L V6 (Sedan / Coupe)
• 2018 Cadillac ATS 3.6L V6 (Sedan / Coupe)
• 2019 Cadillac ATS 3.6L V6 (Coupe)

The Cadillac Precision Standard

Manufactured to precise direct-injection electrical tolerances, this complete ignition kit ensures proper dwell times without triggering CEL warnings, preserving the smooth refinement and responsive driving dynamics expected from the Alpha platform.