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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 ★★★★★
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Product Reviews
★★★★★ 5
Best pimple patches for calming irritation!
These are my FAVORITE pimple patches. They effectively absorb any extra moisture or gunk coming from my pimples, and the centella in them helps relieve irritation. These have thinner edges, which helps them adhere well to your face, and they stay put all day when I wear them out, or all night when I sleep with them on. I have a cat who likes to smack my face with his all night long and they stay on through his barrage.
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Reviewed in the United States on December 28, 2025
★★★★★ 5
Great product for sensitive skin
These are gentle I really like them! Moisturizing is the having secret to treating blemishes. I highly recommend them and I would buy it again.
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Reviewed in the United States on January 21, 2026
★★★★★ 5
Barely noticeable
I like that these are almost completely invisible on the skin instead of like other patches where they are clear to see
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Reviewed in the United States on January 19, 2026
★★★★★ 5
Best acne spot patches!
The best ace patches! I first bought them on a trip to Japan, and was using them sparingly until I ran out. They came fast and are about the same price as in Japan. Would absolutely recommend!
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Dogs favorite toy
Color: Orange & Blue Roller, Size: 7.5 inches (1 Pack), Color: Orange & Blue Roller, Size: 7.5 inches (1 Pack)
I buy 4 of these every month for my dog. He won’t go anywhere without this ball. He sleeps with it, swims with it, goes to the vet and carries it around in his mouth to show off. It’s borderline a problem. My dog is a large breed and plays hard so I do purchase often because the strings unravel and the ball itself is foam so breaks down into little pieces after a few days of playing. I love that it is fragile on his teeth and jaw. We can play catch indoors because it is soft.
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Reviewed in the United States on March 24, 2026