Product Description
Genuine OEM GM 87mm Throttle Body – GM 12733469 | Supersedes Multiple GM Part Numbers
OEM Drive-By-Wire Throttle Body | Fits 2014–2021 GM 6.2L LT-Based Engines
This Genuine OEM GM 87mm electronic throttle body (Part #12733469) is designed to deliver factory-correct airflow, throttle response, and long-term reliability for GM LT-based engines. Engineered and validated by General Motors, this throttle body is an ideal direct replacement for worn or failed factory units, ensuring proper electronic throttle control and seamless ECU integration.
Superseding GM part numbers 12620263, 12678223, 12713774, and 12729495, this throttle body is also a popular upgrade choice when converting an L83 engine to the higher-flowing L86, LT1, or LT2 intake manifolds—making it a versatile solution for both stock repairs and performance-oriented upgrades.
Key Features
- Genuine GM OEM Component: Designed, engineered, and tested by General Motors for OEM-level fit, performance, and durability.
- 87mm Drive-By-Wire Design: Provides smooth electronic throttle control and improved airflow for LT-based engines.
- Supersedes Multiple GM Part Numbers: Replaces 12620263, 12678223, 12713774, and 12729495.
- Upgrade-Friendly: Ideal for upgrading L83 engines to higher-flowing L86, LT1, or LT2 intake manifolds.
- Direct Bolt-On Installation: Installs with no modifications required on listed applications.
Vehicle Fitment
- Cadillac CTS (2016–2019)
- Cadillac Escalade (2015–2021)
- Chevrolet Camaro (2016–2021)
- Chevrolet Corvette (2014–2021)
- Chevrolet Silverado 1500 (2014–2021)
- Chevrolet Silverado 2500 / 3500 (2020–2021)
- Chevrolet Suburban (2016–2021)
- Chevrolet Tahoe (2018–2021)
- GMC Sierra 1500 (2014–2021)
- GMC Sierra 2500 / 3500 (2020–2021)
- GMC Yukon (2016–2021)
- GMC Yukon XL (2015–2021)
Whether you are restoring factory performance or upgrading intake airflow, this Genuine OEM GM 87mm throttle body delivers the reliability, drivability, and quality expected from GM Genuine Parts.
