Ignition Coil & Iridium Spark Plugs for Lexus LX470 (1998-2007) 4.7L V8

High-Voltage Ignition Coil & Iridium Spark Plugs for 1998-2007 Lexus LX (2UZ-FE / UZJ100)

Restores lost power and eliminates misfires: This complete ignition kit replaces aged factory coils and worn plugs with direct-fit, high-voltage coil packs and performance iridium spark plugs to stabilize the combustion process under heavy loads.

The Stock UZJ100 Ignition Weakness

The 4.7L 2UZ-FE V8 is legendary for its million-mile reliability, but the factory ignition coils are prone to severe thermal degradation over decades of use. Nestled deep within the cylinder banks, the OEM coil packs suffer from prolonged heat soak. Over time, the internal epoxy potting becomes brittle and cracks, leading to voltage leaks, primary circuit failures, and weak spark delivery. This degradation manifests as rough idling, reduced towing capacity, hesitation during acceleration, and intermittent P0300-series misfire codes, especially when the engine is heavily loaded on the trail or highway.

The Engineering Solution

This comprehensive ignition overhaul directly addresses the thermal limitations of the factory components. The upgraded ignition coils feature advanced thermal-shock-resistant epoxy potting and high-conductivity copper primary and secondary windings, maximizing dielectric strength and preventing high-voltage tracking. Paired with the included performance iridium spark plugs, the system requires significantly lower firing voltage while maintaining a highly concentrated, stable spark kernel. The iridium center electrodes offer an exceptionally high melting point, resisting arc erosion and ensuring a complete fuel burn. This mechanical synergy translates to immediate throttle response, stabilized idle vacuum, restored fuel efficiency, and dependable performance under sustained load.

Technical Specifications

Compatibility

• 1998 Lexus LX470 4.7L V8
• 1999 Lexus LX470 4.7L V8
• 2000 Lexus LX470 4.7L V8
• 2001 Lexus LX470 4.7L V8
• 2002 Lexus LX470 4.7L V8
• 2003 Lexus LX470 4.7L V8
• 2004 Lexus LX470 4.7L V8
• 2005 Lexus LX470 4.7L V8
• 2006 Lexus LX470 4.7L V8
• 2007 Lexus LX470 4.7L V8

The Lexus Durability Standard

For heavy SUVs and overlanding rigs like the J100 series, ignition reliability is critical. This coil and plug upgrade ensures your 2UZ-FE retains the consistent torque delivery, bulletproof dependability, and towing capability expected from the flagship LX platform.