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Description
GM Chevrolet 6.0L LC8 Complete 821 LPG / CNG OEM Cylinder Head Set | 12640011Condition: NEW NEW TAKE OFF The GM 12600821 Cylinder Head is engineered for optimum performance in GM Gen III and IV engines with multiple sources highlighting its compatibility with 6. 2L engines. This genuine GM component is designed to enhance combustion efficiency and engine power making it a reliable choice for vehicles ranging from certain Cadillac models to Chevrolet and GMC applications. The GM 12640011 Cylinder Head is engineered for powerful
Condition: NEW / NEW TAKE OFFThe GM 12600821 Cylinder Head is engineered for optimum performance in GM Gen III and IV engines with multiple sources highlighting its compatibility with 6.2L engines. This genuine GM component is designed to enhance combustion efficiency and engine power making it a reliable choice for vehicles ranging from certain Cadillac models to Chevrolet and GMC applications.
The GM 12640011 Cylinder Head is engineered for powerful 6.0L LC8 engine applications delivering reliable performance for trucks vans and commercial vehicles. This OEM quality component meets GM standards for durability and efficiency across various platforms.
Hollander Number 306-00273
| Application | Year(s) | Engine / Fuel Type / Notes |
|---|---|---|
| EXPRESS 2500 VAN | 11-16 | 8-364 (6.0L) CNG (opt LC8) |
| EXPRESS 2500 VAN | 17-20 | 6.0L CNG (opt LC8) |
| EXPRESS 3500 VAN | 11-16 | 8-364 (6.0L) CNG (opt LC8) |
| EXPRESS 3500 VAN | 11-16 | 8-364 (6.0L) LPG (opt LC8) |
| EXPRESS 3500 VAN | 17-20 | 6.0L CNG (opt LC8) |
| EXPRESS 3500 VAN | 17-20 | 6.0L LPG (opt LC8) |
| SAVANA 2500 VAN | 11-16 | 8-364 (6.0L) CNG (opt LC8) |
| SAVANA 2500 VAN | 17-20 | 6.0L CNG (opt LC8) |
| SAVANA 3500 VAN | 11-16 | 8-364 (6.0L) CNG (opt LC8) |
| SAVANA 3500 VAN | 11-16 | 8-364 (6.0L) LPG (opt LC8) |
| SAVANA 3500 VAN | 17-18 | 6.0L LPG (opt LC8) |
| SAVANA 3500 VAN | 17-20 | 6.0L CNG (opt LC8) |
| SIERRA 2500 PICKUP | 13-19 | 6.0L CNG |
| SIERRA 3500 PICKUP | 15-19 | 6.0L CNG |
| SIERRA DENALI 2500 | 14-18 | 6.0L CNG |
| SIERRA DENALI 3500 | 15-18 | 6.0L CNG |
| SILVERADO 2500 PICKUP | 13-19 | 6.0L CNG |
| SILVERADO 3500 PICKUP | 15-19 | 6.0L CNG |
Part Number: 12640011
Manufacturer: GM
Weight: 60.0000 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 [email protected] 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!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
HOBO wristlet
Size: One Size, Color: Truffle
Love this wristlet and always receive compliments.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Great Looking. Funky. Convenient for Hands Free-ness
Size: One Size, Color: Black
I love the modern lines of this purse. And of course, as Hobo always does, it has a fun interior.
The circle part is large enough to put your forearm through. So I bought it thinking I'd only have a clutch...or maybe a wristlet at best. But actually, I can pull it up to my elbow while I'm shopping and flipping through things. That is so cool.
I've never had this many compliments on a purse.
Mind you, it is still small. So if you carry a tote-sized purse, this will seem teeny. I find it super handy while traveling too. It goes inside of my backpack or laptop case. Then you can grab it without schlepping your entire suitcase around.
I'm not a purse gal, so this is my upsizing from being a wallet-only person. Being able to also have keys and a pen and some lip gloss in there is a great bonus over wallet-only days.
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Reviewed in the United States on January 7, 2014
★★★★★ 4
Love it but pricy
Size: One Size, Color: Black
Looks and feels great but I’m not sure it is worth the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 17, 2024
★★★★★ 5
Very nice product. If my wife is happy, then I’m happy! Reommended.
Size: One Size, Color: Truffle
My wife has one of these and she wanted one for her mother. Her mother loves it. Great product and good price!
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Handy bag
Size: One Size, Color: Black
Well made and pliable
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Reviewed in the United States on December 23, 2025