Ignition Coil & Iridium Spark Plugs for Infiniti G37 (2008-2013) 3.7L

OEM-Grade Ignition Coil & Iridium Spark Plugs for 2008-2013 Infiniti G37

Direct Replacement Ignition System: This comprehensive coil pack and iridium spark plug kit restores factory spark energy to eliminate misfires, rough idling, and hesitation in the 3.7L V6.

The Stock G37 Ignition Degradation

The factory VQ37VHR engine is notorious for generating substantial under-hood temperatures, which progressively degrades the internal epoxy and copper windings of the original ignition coils over time. As the OE coils experience thermal cycling and heat soak, the dielectric boots begin to crack, causing arcing and parasitic voltage loss. Concurrently, factory spark plugs experience electrode wear, widening the plug gap and demanding higher voltage output. This compound failure forces the ignition system to work harder, ultimately resulting in noticeable cylinder misfires, unburnt fuel entering the exhaust, diminished throttle response, and a drastic drop in overall engine efficiency.

The Engineering Solution

This replacement ignition kit directly resolves the factory thermal vulnerabilities by utilizing upgraded, high-temperature epoxy resin within the coil windings to resist breakdown under extreme heat. The included ignition coils feature precision-wound copper stators that guarantee a consistent, high-energy spark across the entire RPM band. Paired with six premium iridium spark plugs, the system benefits from a micro-sized center electrode that concentrates spark energy, significantly lowering the voltage requirement while ensuring complete combustion. The iridium construction prevents gap erosion over high mileage, delivering stable idle dynamics, immediate throttle input, and restored factory power without triggering check engine lights.

Technical Specifications

Compatibility

• 2008 Infiniti G37 3.7L V6
• 2009 Infiniti G37 3.7L V6
• 2010 Infiniti G37 3.7L V6
• 2011 Infiniti G37 3.7L V6
• 2012 Infiniti G37 3.7L V6
• 2013 Infiniti G37 3.7L V6

The Infiniti JDM Caliber

Designed to support the high-revving nature of the VQ-series V6, this ignition overhaul ensures restored power delivery, aggressive throttle response, and smooth idle stability crucial for top-tier Japanese sports platforms.