Ignition Coil & Iridium Spark Plugs for Toyota Avalon (2005-2017) 3.5L V6

High-Output Ignition Coil & Iridium Spark Plugs for 2005-2017 Toyota Avalon (2GR-FE / GSX30 & GSX40)

Direct Replacement Ignition Upgrade: Restores lost power and fuel efficiency by replacing failing OEM ignition coils and worn spark plugs with a matched high-output performance set.

The Stock 2GR-FE Ignition Shortcomings

The factory Toyota 2GR-FE 3.5L V6 relies heavily on a healthy ignition system to maintain its 268 horsepower output. Over time, the OEM ignition coils suffer from thermal breakdown due to prolonged heat soak within the engine bay, particularly on the rear bank located tightly against the firewall. This continuous thermal cycling degrades the internal epoxy potting and the primary and secondary copper windings. Simultaneously, factory spark plug gaps widen from normal electrode wear. Combined, these degradation factors lead to weak spark generation, resulting in partial combustion, idle misfires, sluggish throttle response, and a noticeable drop in fuel economy. Left unaddressed, unburned fuel can eventually damage the catalytic converters.

The Engineering Solution

This comprehensive 6-pack of upgraded ignition coils and premium iridium spark plugs restores and enhances the secondary ignition circuit. The replacement coils feature advanced thermal epoxy and upgraded internal windings designed to resist heat soak and deliver a consistently higher voltage output. The included iridium spark plugs utilize an ultra-fine wire center electrode, requiring less firing voltage to bridge the gap while providing a substantially hotter, more concentrated spark. This optimal spark propagation ensures complete cylinder combustion, restoring factory torque curves, eliminating cold-start hesitations, and maximizing fuel burn efficiency across the entire RPM range. The matched components guarantee proper electrical resistance without triggering diagnostic trouble codes or a Check Engine Light (CEL).

Technical Specifications

Compatibility

• 2005 Toyota Avalon 3.5L V6
• 2006 Toyota Avalon 3.5L V6
• 2007 Toyota Avalon 3.5L V6
• 2008 Toyota Avalon 3.5L V6
• 2009 Toyota Avalon 3.5L V6
• 2010 Toyota Avalon 3.5L V6
• 2011 Toyota Avalon 3.5L V6
• 2012 Toyota Avalon 3.5L V6
• 2013 Toyota Avalon 3.5L V6
• 2014 Toyota Avalon 3.5L V6
• 2015 Toyota Avalon 3.5L V6
• 2016 Toyota Avalon 3.5L V6
• 2017 Toyota Avalon 3.5L V6

The Toyota Reliability Standard

Engineered for the demands of daily driving and long-term commuting, this matched ignition overhaul ensures your 2GR-FE maintains its smooth power delivery, maximized fuel economy, and renowned reliability.