aFe POWER 76mm Billet Throttle Body and Adapter Kit, Part Number 46-39103, Toyota 4Runner, FJ Cruiser, Tacoma and Tundra

This aFe POWER 76mm Throttle Body and adapter kit improves engine air flow over the stock 65mm throttle body. The extra air flow will increase horsepower and throttle response. This kit will work with OEM or aFe cold air intakes. Performance gains will be more noticeable as more upgrades are added to the vehicle. All adapters are constructed from 6061-T6 billet aluminum and are precision machined for light weight, high strength, and perfect fit and finish. The Serrated/Swirl combination design creates intake turbulence in the combustion chamber which breaks up the fuel creating a more complete combustion cycle increasing horsepower, torque and improving throttle response. This aFe POWER 76mm throttle body kit uses all factory mounting locations providing stability and a hassle-free installation. All needed hardware is included with the kit. Idle will run high on some vehicles but will readjust once the ECU learns to properly control the idle (this can take up to 800 miles on some vehicles). aFe POWER 76mm Throttle Body Toyota 4Runner/FJ/Tacoma/Tundra 03-15 (1GR-FE Single VVT-i)

• More Power and Better Throttle Response
• 76mm Bore Diameter, No Tuning Required
• Direct Bolt-On For Simple Installation
• Hardware and Gasket Included
• Plug-n-play Electronics
• Billet Aluminum Adapter

Improve airflow, horsepower potential, and throttle response with the aFe POWER 76mm Billet Throttle Body and Adapter Kit, part number 46-39103. Designed for select Toyota vehicles equipped with the 1GR-FE single VVT-i 4.0L V6 engine, this kit upgrades the factory 65mm throttle body with a larger 76mm bore. The increased airflow can help the engine respond more quickly and deliver stronger performance, particularly when combined with additional intake and engine modifications.

The adapter is precision machined from 6061-T6 billet aluminum for a lightweight, strong, and precise fit. Its Serrated/Swirl design promotes intake turbulence in the combustion chamber, helping break up the fuel mixture for more complete combustion and improved horsepower, torque, and throttle response. The kit is compatible with OEM and aFe cold air intake systems and uses factory mounting locations for a stable, direct bolt-on installation.

Installation is simplified with included hardware and gasket, while plug-and-play electronics eliminate the need for wiring modifications. No custom tuning is required. Some vehicles may experience a temporarily elevated idle after installation while the ECU relearns idle control; this process may take up to 800 miles in certain applications. This product is not CARB approved and may not be legal for use on pollution-controlled vehicles in all locations. Fitment includes select Toyota 4Runner, FJ Cruiser, Tacoma, and Tundra applications equipped with the specified engine configuration.

Product Specifications and Technical Data

• Brand: aFe POWER
• Part Number: 46-39103
• Product Type: Billet throttle body and adapter kit
• Bore Diameter: 76mm
• Original Equipment Bore: 65mm
• Compatible Engine: Toyota 1GR-FE single VVT-i 4.0L V6
• Construction: 6061-T6 billet aluminum adapter
• Installation: Direct bolt-on using factory mounting locations

What's Included

• 76mm throttle body and billet aluminum adapter
• Mounting hardware
• Gasket

Features:

• More Power and Better Throttle Response: Increases airflow over the factory throttle body to support stronger engine performance.
• 76mm Bore Diameter, No Tuning Required: Provides a larger airflow path without requiring custom tuning.
• Direct Bolt-On Installation: Uses factory mounting locations for a straightforward installation.
• Billet Aluminum Adapter: Precision-machined 6061-T6 billet aluminum construction provides strength, low weight, and a precise fit.
• Serrated/Swirl Design: Helps create intake turbulence for improved fuel mixing and more complete combustion.
• OEM and aFe Intake Compatibility: Works with factory or aFe cold air intake systems.
• Plug-and-Play Electronics: Retains factory-style electronic connections without wiring modifications.
• Complete Installation Package: Includes the required mounting hardware and gasket.

Fitments:
2003 Toyota 4Runner Limited
2003 Toyota 4Runner Sport
2003 Toyota 4Runner SR5
2004 Toyota 4Runner Limited
2004 Toyota 4Runner Sport
2004 Toyota 4Runner SR5
2005 Toyota 4Runner Limited
2005 Toyota 4Runner Sport
2005 Toyota 4Runner SR5
2005 Toyota Tacoma Base
2005 Toyota Tacoma Pre Runner
2005 Toyota Tacoma X-Runner
2005 Toyota Tundra Base
2005 Toyota Tundra SR5
2006 Toyota 4Runner Limited
2006 Toyota 4Runner Sport
2006 Toyota 4Runner SR5
2006 Toyota Tacoma Base
2006 Toyota Tacoma Pre Runner
2006 Toyota Tacoma X-Runner
2006 Toyota Tundra Base
2006 Toyota Tundra SR5
2007 Toyota 4Runner Limited
2007 Toyota 4Runner Sport
2007 Toyota 4Runner SR5
2007 Toyota FJ Cruiser Base
2007 Toyota FJ Cruiser TRD Special Edition
2007 Toyota Tacoma Base
2007 Toyota Tacoma Pre Runner
2007 Toyota Tacoma X-Runner
2007 Toyota Tundra Base
2007 Toyota Tundra SR5
2008 Toyota 4Runner Limited
2008 Toyota 4Runner Sport
2008 Toyota 4Runner SR5
2008 Toyota FJ Cruiser Base
2008 Toyota FJ Cruiser Trail Teams Special Edition
2008 Toyota Tacoma Base
2008 Toyota Tacoma Pre Runner
2008 Toyota Tacoma X-Runner
2008 Toyota Tundra Base
2008 Toyota Tundra SR5
2009 Toyota 4Runner Limited
2009 Toyota 4Runner Sport
2009 Toyota 4Runner SR5
2009 Toyota FJ Cruiser Base
2009 Toyota Tacoma Base
2009 Toyota Tacoma Pre Runner
2009 Toyota Tacoma X-Runner
2009 Toyota Tundra Base
2009 Toyota Tundra SR5
2010 Toyota Tacoma Base
2010 Toyota Tacoma Pre Runner
2010 Toyota Tacoma X-Runner
2010 Toyota Tundra Base
2010 Toyota Tundra SR5
2011 Toyota Tacoma Base
2011 Toyota Tacoma Pre Runner
2011 Toyota Tacoma X-Runner
2011 Toyota Tundra Base
2011 Toyota Tundra SR5
2012 Toyota Tacoma Base
2012 Toyota Tacoma Pre Runner
2012 Toyota Tacoma X-Runner
2013 Toyota Tacoma Base
2013 Toyota Tacoma Pre Runner
2013 Toyota Tacoma X-Runner
2014 Toyota Tacoma Base
2014 Toyota Tacoma Pre Runner
2015 Toyota Tacoma Base
2015 Toyota Tacoma Pre Runner
2015 Toyota Tacoma TRD Pro

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1