Ignition Coil & Iridium Spark Plugs for Toyota Sienna (2007-2015) 3.5L V6

High-Output Ignition Coil & Iridium Spark Plugs for 2007-2015 Toyota Sienna (2GR-FE / XL20 & XL30)

Engineered for direct replacement and enhanced combustion efficiency, this ignition kit restores lost power and corrects misfires in the 3.5L V6 2GR-FE powertrain.

The Stock 2GR-FE Ignition Degradation

The OEM ignition coils and spark plugs on the Toyota Sienna's 2GR-FE engine suffer from severe thermal degradation over high-mileage heat cycles. Packaged in a transverse V6 layout, the rear bank coils endure intense radiant heat trapped against the firewall. This persistent heat soak breaks down internal dielectric epoxy and copper windings, causing high electrical resistance. Combined with widening gaps on worn factory plugs, the system demands excessive voltage, leading to P0300-series misfires, hesitation under load, and reduced fuel economy.

The Engineering Solution

This ignition service kit resolves V6 firing issues by upgrading both voltage delivery and spark generation. The upgraded coils utilize high-temperature dielectric epoxy and reinforced primary and secondary windings to withstand extreme thermal loads near the firewall. Paired with six performance Iridium spark plugs, the system ensures highly efficient combustion. Iridium's superior heat resistance permits a fine-wire center electrode, focusing electrical energy to create a robust spark kernel with lower secondary voltage demand. This ensures a complete fuel burn, restoring factory horsepower, smoothing out rough idling, and maximizing torque delivery.

Technical Specifications

Compatibility

• 2007-2015 Toyota Sienna 3.5L V6

The Toyota Durability Standard

Whether you are handling daily carpool duties or towing a lightweight trailer, maintaining optimal combustion ensures this legendary JDM-engineered V6 delivers the reliable, long-term power and efficiency expected from the Toyota platform.