Ignition Coil & Iridium Spark Plugs for Nissan Murano (2003-2007) 3.5L V6

High-Output Ignition Coil & Iridium Spark Plugs for 2003-2007 Nissan Murano

Replaces degrading factory ignition components to restore optimal spark timing, eliminate misfires, and stabilize idle across the VQ35DE powerband.

The Stock Z50 Ignition Weakness

The factory ignition coils on the Z50 Murano are notoriously prone to thermal degradation over high-mileage cycles. Nestled against the transverse VQ35DE, the rear bank (Bank 1) coils are subjected to severe, localized heat soak trapped against the firewall. Over time, the internal epoxy potting breaks down, leading to micro-cracking in the housing. This allows voltage to arc to the cylinder head rather than bridging the plug gap, resulting in under-load misfires (P0300-P0306 codes), hesitation during acceleration, and unburnt fuel damaging the catalytic converters. Concurrently, aging factory platinum plugs lose their gap tolerances, increasing electrical resistance and over-taxing the aging coils.

The Engineering Solution

This comprehensive 12-piece ignition service kit tackles the Z50's thermal challenges directly. The updated ignition coils feature high-dielectric epoxy resin and heavy-duty primary/secondary copper wire windings to resist thermal breakdown and ensure consistent voltage output, even under extreme firewall heat. High-temperature silicone boots prevent flashover and effectively seal out moisture. Paired with high-performance iridium spark plugs, the system benefits from an ultra-fine center electrode that requires significantly less voltage to jump the gap. This reduces the electrical load on the new coils while generating a concentrated, highly stable spark front. The iridium alloy maintains precise gap specifications thousands of miles longer than standard materials, ensuring a complete combustion cycle and restoring the VQ35DE's factory throttle response.

Technical Specifications

Compatibility

• 2003 Nissan Murano 3.5L V6
• 2004 Nissan Murano 3.5L V6
• 2005 Nissan Murano 3.5L V6
• 2006 Nissan Murano 3.5L V6
• 2007 Nissan Murano 3.5L V6

The Nissan Caliber

Engineered to maintain the renowned smooth power delivery of the VQ35DE, this ignition kit guarantees reliable daily driving, consistent torque for passing, and zero check engine lights on your daily commute.