Dorman 977-018 fuel injection throttle body for the 2005-2008 Buick LaCrosse V6 3.6L and other vehicles controls the air flowing into the engine. Original throttle bodies often fail from moisture, oil intrusion or failed internal electronics; this throttle body changes the sensor and the seal.
- Part of the Dorman OE FIX line
- Non-contact Hall effect sensor built to prevent future failures
- Proprietary Sensor Shield seal on the butterfly shaft
- 100% new aluminum construction
- Complies with Federal Motor Vehicle Safety Standards (FMVSS) and is endurance-proven in cycle testing
Quick facts
- Part: Dorman 977-018 fuel injection throttle body
- Fits: 2005-2008 Buick LaCrosse V6 3.6L and other vehicles
- Material: Aluminum
- Condition: New
Rough idle, hesitation on acceleration or a throttle warning light can mean the throttle body is failing. Before you replace it, rule out a vacuum leak, a dirty bore or a wiring or connector fault, since those can produce similar symptoms. If a failed throttle body is the cause, this throttle body replaces it. One throttle body serves the whole engine, so the car takes one.
Fits
This throttle body is listed for a wide range of Buick and Cadillac models, including the 2005-2008 Buick Allure V6 3.6L and the 2004-2007 Cadillac CTS V6 3.6L. If your car is something else, look up your model and year in the “Vehicles it fits” section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Inlet diameter: 2.91 in
- Outlet diameter: 2.68 in
- Bore diameter: 2.68 in
- Airflow rate: 97 CFM
- Inlet type: flanged; outlet type: non-flanged
- Electrical connector: 6 terminals, male, blade type
Build and materials
- Type: electronic throttle body
- Material: aluminum
- Throttle position sensor: included
- Condition: new
- Country of origin: China
In the box
One throttle body. The gasket or seal, mounting hardware and installation hardware are not included, so plan on new ones rather than reusing the old.
Installation notes
- Plug-and-play replacement with the throttle position sensor already in the throttle body.
Interchange: 217-2253 · 67-3016
APTHB077 · 0280750202 · 12589056 · TB1045 · S20004 · TB1044 · 1G5028
This part cross-references / interchanges with the following part numbers:
APTHB077, 217-2253, 0280750202, 67-3016, 12589056, TB1045, S20004, TB1044, 1G5028
Frequently Asked Questions
Is the Dorman 977-018 fuel injection throttle body right for a 2004-2007 Cadillac CTS V6 3.6L?
Yes, Dorman 977-018 is listed for the 2004-2007 Cadillac CTS V6 3.6L; for other years and models, look your car up in the “Vehicles it fits” section.
Does this throttle body come with a gasket or mounting bolts?
No. The box holds one throttle body with its throttle position sensor; the gasket or seal, mounting hardware and installation hardware are not included.
What are the bore and inlet sizes on the 977-018 electronic throttle body?
The bore and outlet are 2.68 in and the flanged inlet is 2.91 in. The outlet is non-flanged, and the body is aluminum.
How can I tell if my electronic throttle body is failing?
Rough idle, hesitation or a throttle warning light can be signs of a failing throttle body. A shop can test the throttle body with the right equipment.
What sensor and seal does the Dorman 977-018 use?
Dorman 977-018 uses a non-contact Hall effect sensor and a proprietary Sensor Shield butterfly shaft seal. It also has over 1 million cycle tests behind it.
