Dorman 977-375 fuel injection throttle body for the 2014-2023 Chevrolet Silverado 1500 V8 5.3L and other vehicles controls how much air enters the engine. This electronic unit is part of the Dorman OE FIX line.
- Sensor Shield butterfly shaft seal designed to keep moisture and oil away from the internal electronics
- Addresses a common failure of original throttle bodies, where moisture and oil intrusion foul the electronics
- Housing made of 100% new aluminum
- Throttle position sensor included
- Endurance-proven with over 1 million cycle tests and compliant with FMVSS
- Vehicle try-on tested
Quick facts
- Part: Dorman 977-375 fuel injection throttle body
- Fits: 2014-2023 Chevrolet Silverado 1500 V8 5.3L and other vehicles
- Material: Aluminum
- Condition: New
A rough or unstable idle, slow response to the pedal or a throttle warning light can mean the throttle body is failing. Before buying one, look with the engine off and cool at the butterfly area for an oil film or moisture and at the connector for corrosion; a shop can run the electronic tests that pin down the cause.
Fits
This throttle body is listed for a wide range of Chevrolet and GMC models, including the 2014-2023 GMC Sierra 1500 V8 5.3L and the 2015-2023 Chevrolet Tahoe V8 5.3L. A 2014-2023 Chevrolet Silverado 1500 V8 5.3L takes one.
Specifications
Fit and size
- Quantity per vehicle: 1
- Inlet diameter: 3.54 in
- Outlet diameter: 3.14 in
- Bore diameter: 3.14 in
- Inlet and outlet type: non-flanged
- Electrical connection: male, 6 blade terminals
Build and materials
- Throttle body type: electronic
- Housing material: aluminum, natural finish
- Throttle position sensor: included
- Gasket: included
- Fuel system: gas
- Condition: new
- Country of origin: China
In the box
One throttle body and one gasket. Mounting hardware is not included, so plan on new fasteners, since the old ones may not be reusable.
Interchange: 6E-3042 · 67-3042
12617792 · 12678224 · 12713775 · 12729500 · 12740725 · 1814269 · ETB0066 · TB1297 · S20223 · V33810025 · 1G5048
This part cross-references / interchanges with the following part numbers:
6E-3042, 67-3042, 12617792, 12678224, 12713775, 12729500, 12740725, 1814269, ETB0066, TB1297, S20223, V33810025, 1G5048
Frequently Asked Questions
Does the Dorman 977-375 throttle body fit the 2014-2023 Chevrolet Silverado 1500 V8 5.3L?
Yes, Dorman 977-375 is listed for the 2014-2023 Chevrolet Silverado 1500 V8 5.3L. If your truck is a different model, look it up in the "Vehicles it fits" section on this page.
Does this throttle body come with a gasket and a throttle position sensor?
Yes, Dorman 977-375 comes with one gasket, and the throttle position sensor is included. Mounting hardware is not included.
What is the Sensor Shield seal on this throttle body?
Sensor Shield is Dorman's proprietary butterfly shaft seal. It is designed to keep moisture and oil from fouling the internal electronics, a failure seen on original throttle bodies.
What signs can mean an electronic throttle body is failing?
Hesitation when accelerating, an unsteady idle or a reduced-power or check-engine light can mean the throttle body is at fault. A shop can confirm it with a scan tool.
Does Dorman 977-375 replace throttle body number 12678224?
Yes, 12678224 is one of the other numbers that Dorman 977-375 replaces.
