The 2014 GM light-duty trucks with the 5.3-liter V8—such as the Chevrolet Silverado 1500 and GMC Sierra 1500—are equipped with a six-speed automatic transmission, most commonly GM’s Hydra-Matic 6L80.
In this model year, the 5.3L V8 was paired with a six-speed automatic as the standard setup for US-market pickups, delivering a balance of smooth shifting and towing capability. While configurations can vary by trim and drivetrain, the 6L80 is the typical transmission for the 5.3 in 2014 Silverado/Sierra models. Always verify the exact unit on a specific vehicle using the VIN or build sheet.
Typical transmission pairing for the 5.3L in 2014
Below is a concise overview of the common factory-installed transmission used with the 5.3L V8 in 2014 GM light trucks.
- Hydra-Matic 6L80 six-speed automatic (standard for the 5.3L V8 in most 2014 Silverado/Sierra models).
- Note: The 6L80 is the baseline for the 5.3L in 2014 light-duty trucks; 6L90 configurations are not typically paired with the 5.3L 1500 lineup in that year. Always check the specific vehicle’s build sheet for confirmation.
Conclusion: For most 2014 5.3L pickups, the six-speed automatic 6L80 is standard. If you need absolute certainty for a particular vehicle, consult the VIN/build sheet or the dealership records for the exact transmission code.
How to verify the exact transmission on your vehicle
To confirm the precise unit installed on a specific truck, use these steps:
- Decode the VIN to read the RPO codes that specify the transmission type.
- Inspect the transmission tag or pan code during service or maintenance to identify the model.
- Refer to the original window sticker or the owner’s manual for the factory equipment list.
Bottom line: The standard 6L80 is typical for the 2014 5.3L GM trucks, but always verify with official documentation to be sure of the exact transmission on a given vehicle.
Summary
In short, a 2014 Chevrolet Silverado 1500 or GMC Sierra 1500 with the 5.3L V8 typically uses a six-speed automatic transmission, specifically the Hydra-Matic 6L80. For certainty about a particular vehicle, check the VIN/build sheet.


