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GMC Sierra Throttle Bodies & Accessories

2.7L I4, 3.0L I6 Duramax, 4.3L V6, 4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8

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Best Selling Throttle Body Adapters and Spacers for your Sierra

GMC Sierra Throttle Bodies & Accessories

If you’re interested in putting a new spin on things, the rotating air flow created by 1999-2018 throttle bodies & accessories for your GMC Sierra may be just the thing you need. These finely manufactured components make the air whirl as it enters the combustion chamber, mixing it more thoroughly with the fine fuel droplets sprayed from the injection nozzles and creating a hotter, more even, more thorough combustion. That translates into more power – in both horses and torque – in the mid-range area of your truck’s RPM gauge, one of the most heavily used bands in many cases. The throttle bodies you’ll find on AmericanTrucks are picked for their sturdiness and precision – cut out of aerospace grade billet aluminum, these parts fit so well you can install them in less than hour. Get a boost to your truck’s performance and engine sound today!


Shop All Cold Air Intakes for Trucks


Fitment Includes

  • Base, C3, Classic, HT, Hybrid, Nevada Edition, SL, Z71, Denali, SLE, 1500, SLT and WT Sierras
  • Engines: 4.3L Vortec V6, 4.8L Vortec V8, 5.3L Vortec V8, 5.3L Flex-Fuel Vortec V8, 5.3L Vortec V8 Hybrid, 6.0L Vortec V8, 6.2L VVT Vortec V8, 4.3L EcoTec3 V6, 5.3L EcoTec3 V8, 6.2L EcoTec3 V8 Sierras

*Please see Sierra parts pages for any exceptions.