aFe POWER 76mm Billet Throttle Body (46-39102) boosts airflow, horsepower, and throttle response for 2010–2023 Toyota 4Runner and 2010–2014 Toyota FJ Cruiser with the V6 4.0L engine. This direct bolt-on upgrade increases air intake diameter over the factory 70mm unit, offering better performance especially when paired with additional mods. Designed for use with both OEM and aFe cold air intakes, the throttle body kit includes a billet aluminum adapter precision-machined from 6061-T6 material for strength, light weight, and proper fit. Its Serrated/Swirl bore design improves combustion efficiency by creating intake turbulence, enhancing power output and throttle feel. The kit comes complete with all necessary hardware for an easy installation using factory mounting points.
Key Features :
76mm bore increases airflow over stock 70mm throttle body
Serrated/Swirl bore improves fuel atomization and combustion
6061-T6 billet aluminum adapter for strength and light weight
Works with OEM and aFe cold air intake systems
Includes all gaskets and hardware for simple installation
Plug-and-play electronics with no tuning required
Direct bolt-on design for hassle-free mounting using stock locations
Technical Notes
Idle may run high initially but will recalibrate automatically after up to 800 miles of ECU adaptation. Not CARB exempt—cannot be shipped to or used on vehicles registered in California.
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