Larger Throttle Body Upgrade

Toyota 4Runner, FJ, Tundra, & Tacoma

Part Number: 46-39103
Bigger aftermarket throttle body mod on Toyota trucks & SUV installed


  • 75mm over 65mm stock
  • Improve horsepower, torque, and throttle response
  • Fits stock or aFe air box
  • Plug-and-play / No tune required
  • Direct Bolt-on installation
  • Billet aluminum
  • Works with OEM or aFe cold air intakes, and performance gains will be more noticeable as more upgrades are added to the vehicle.
  • Fitment Note: Fits the 1GR-FE engine with the Single VVT-i. It is highly recommended to install an aFe Cold Air Intake system as the OEM intake tube coupling will not stretch over the larger size throttle body and special brackets will be needed to offset the air cleaner assembly.

Learn More!

If you’re looking for max power, the 76mm Throttle Body is a must have performance upgrade for your 1GR-FE Single VVT-i. Single VVT-I+ Toyota Tundra, Tacoma, 4Runner, or FJ. Compared to the stock 70mm throttle body, the aFe POWER 76mm improves engine airflow, increasing horsepower and throttle response.

This aftermarket Throttle Body power upgrade modification fits:

2003, 2004, 2005, 2006, 2007, 2008, 2009 (4th Gen) Toyota 4Runner V6 4.0L

2007, 2008, 2009 (1st Gen) Toyota FJ Cruiser V6 4.0L

2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015  (2nd Gen) Tacoma V6 4.0L

2005, 2006, 2007, 2008, 2009, 2010, 2011 (2nd Gen) Toyota Tundra V6 4.0L

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