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!
I can not express my gratitude to both gentlemen I dealt with at Custard Core Supply. Their customer service was outstanding. I eagerly anticipated my order arriving, and when it did, my high expectations were more than lived up to.
The product was packaged carefully, and it was so clean that it looked brand new. Wow !
I noticed this company is on ebay. Normally, I am very leery of ordering anything on eBay because there are so many fakes and imitations. Custard Core Supply is one company that I would order from on eBay in a heartbeat - without hesitation.
I hope to make another order very soon. Thanks again gentlemen.
got a crankshaft and it was exactly as described great packaging i will absolutely purchase again…..also the customer support was spot on 5stars for me
