GM Throttle Body 12678312 OEM 4.8L 5.3L 6.0L 6.2L W/ Mounting Hardware

Condition: NEW / NEW TAKE OFF

The GM Genuine Parts throttle body part number 12678312 is engineered to precise GM standards for optimal engine air control. Designed for fuel injection systems this throttle body plays a vital role in regulating air intake ensuring excellent performance and efficiency across numerous GM vehicle applications such as Sierra Suburban Silverado Tahoe and Yukon. Its precision and reliability are confirmed by multiple sources making it an essential component for maintaining smooth engine function.

Fitment information provided with best effort, customer is ultimately responsible for fitment

Hollander Number 337-10048

Application	Year(s)	Engine / Notes
ESCALADE	18-19	(throttle valve assembly)
ESCALADE	21	6.2L ID 12678312
ESCALADE ESV	18-19	(throttle valve assembly)
ESCALADE ESV	21	(throttle valve assembly) 6.2L ID 12678312
SIERRA 1500 PICKUP	19	style (mirrors mount on door skin) 6.2L ID 12678312
SIERRA 1500 PICKUP	20-21	6.2L ID 12678312
SIERRA 2500 PICKUP	20	diesel
SIERRA 2500 PICKUP	21	(throttle valve assembly) diesel
SIERRA 3500 PICKUP	20-21	(throttle valve assembly) diesel
SIERRA DENALI 1500	19-21	(throttle valve assembly) 6.2L ID 12678312
SIERRA DENALI 2500	20	diesel
SIERRA DENALI 2500	21	(throttle valve assembly) diesel
SIERRA DENALI 3500	20-21	(throttle valve assembly) diesel
SILVERADO 1500 PICKUP	19	style (mirrors mount on door skin) 6.2L ID 12678312
SILVERADO 1500 PICKUP	20-21	6.2L ID 12678312
SILVERADO 2500 PICKUP	20	(throttle valve assembly 6.6L) diesel
SILVERADO 3500 PICKUP	20	(throttle valve assembly 6.6L) diesel
SUBURBAN 1500	21	6.2L ID 12678312
TAHOE	21-22	6.2L ID 12678312
YUKON	21	6.2L ID 12678312
YUKON XL 1500	21	6.2L ID 12678312

All parts industrially cleaned and inspected for cracks and damage before shipping

Part Number: 12678312
Manufacturer: GM
Weight: 3.0000 lbs

Additional Details:
Genuine OEM Parts

Please research/ensure fitment of part to your specific vehicle before purchasing. Returns because of non-fitment are accepted with a re-stocking fee, however customer is responsible for return shipping.

Shipping:
If shipping outside the contiguous 48 states is required, reach out to shopify@custardcore.com to confirm shipping details.

About Us:
Custard Core Supply provides the highest quality of new, new take off, used, and core parts. We provide a variety of gas and diesel parts to our customers. Based in Dallas, TX Custard Core Supply has been in business since 1998. If you do not see a product you are looking for on our page, please reach out!