Ignition Coil & Iridium Spark Plugs for Lexus GX460 (2010-2020) 4.6L V8

Direct-Replacement Ignition Coil & Iridium Spark Plugs for 2010-2020 Lexus GX

Restores optimal combustion efficiency and resolves misfire conditions in the 1UR-FE engine by replacing degrading OEM ignition coils and fouled spark plugs with a direct-fit, high-performance spark delivery system.

The Stock J150 Ignition Weakness

As the 1UR-FE 4.6L engine accumulates mileage, the factory ignition system faces significant thermal stress. The OEM coil boots are prone to heat degradation, hardening, and micro-cracking over time, leading to voltage leaks and subsequent cylinder misfires under load. Additionally, standard spark plug electrodes wear down, widening the plug gap. This increased gap forces the ignition coils to work harder to jump the arc, generating excess internal heat that eventually burns out the coil's primary windings and triggers P0300-series OBD2 misfire codes.

The Engineering Solution

This comprehensive 16-piece tune-up kit directly addresses the 1UR-FE's ignition drop-off. The upgraded ignition coils feature high-temperature epoxy resin and advanced dielectric silicone boots to completely seal out moisture and resist engine bay heat soak. Internally, high-purity copper windings ensure a stronger, more consistent magnetic field for a hotter spark. Paired with the ultra-fine wire iridium spark plugs, which require significantly less firing voltage than traditional copper or platinum plugs, this system stabilizes the ignition arc. The iridium alloy provides exceptional resistance to oxidation and electrode wear, maintaining optimal gap spacing over high mileage while maximizing throttle response and fuel economy.

Technical Specifications

Compatibility

• 2010 Lexus GX460 4.6L V8
• 2011 Lexus GX460 4.6L V8
• 2012 Lexus GX460 4.6L V8
• 2013 Lexus GX460 4.6L V8
• 2014 Lexus GX460 4.6L V8
• 2015 Lexus GX460 4.6L V8
• 2016 Lexus GX460 4.6L V8
• 2017 Lexus GX460 4.6L V8
• 2018 Lexus GX460 4.6L V8
• 2019 Lexus GX460 4.6L V8
• 2020 Lexus GX460 4.6L V8

The Lexus Reliability Standard

Engineered to meet the demanding durability standards of Lexus's body-on-frame platforms. This kit ensures reliable all-weather starts and maintains the smooth, consistent power delivery required for heavy towing and off-road articulation, keeping your J150 out of the shop and on the trail.