Ignition Coil & Iridium Spark Plugs for Acura TL (2009-2014) 3.5L 3.7L V6

Direct-Fit Ignition Coil & Iridium Spark Plugs for 2009-2014 Acura TL (J-Series / UA8/UA9)

Restores lost ignition efficiency and eliminates misfires for consistent combustion: This comprehensive kit replaces degraded factory ignition coils and fouled spark plugs to ensure optimal voltage transfer and reliable cold starts.

The Stock J-Series Ignition Degradation

Over thousands of heat cycles, the factory ignition coils on the J35 and J37 V6 engines suffer from primary winding degradation and boot deterioration. The intense ambient heat generated by the transverse-mounted V6 design, specifically against the firewall bank, accelerates the breakdown of the coil housing's epoxy insulation. This leads to internal arcing, voltage leaks, and intermittent misfires, particularly under load. Concurrently, worn OEM spark plugs experience increased gap erosion, demanding higher firing voltages that further stress the failing coils, resulting in sluggish throttle response, elevated emissions, and reduced fuel economy.

The Engineering Solution

This comprehensive ignition kit utilizes upgraded primary and secondary copper windings within the coils to maximize magnetic flux and ensure a high-energy spark output. The external housings are molded from high-dielectric epoxy and thermal-resistant polymers to withstand the severe heat soak of the engine bay, effectively preventing internal arcing. Paired with high-performance Iridium spark plugs, the system provides an ultra-fine center electrode that requires less firing voltage while delivering a more concentrated, stable spark front. The Iridium alloy resists extreme combustion chamber temperatures and chemical erosion, guaranteeing a precise spark gap over extended mileage. Terminal connections feature OE-spec blade configurations for a true plug-and-play installation.

Technical Specifications

Compatibility

• 2009 Acura TL 3.5L & 3.7L V6
• 2010 Acura TL 3.5L & 3.7L V6
• 2011 Acura TL 3.5L & 3.7L V6
• 2012 Acura TL 3.5L & 3.7L V6
• 2013 Acura TL 3.5L & 3.7L V6
• 2014 Acura TL 3.5L & 3.7L V6

The Acura Precision Standard

Engineered to restore Honda/Acura's legendary J-Series reliability, this kit delivers the precise ignition timing and robust spark necessary for smooth power delivery and factory-spec efficiency, ensuring a CEL-free dash.