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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
4.2 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Best Steam Mop for your $$
Color: White
I bought the Black and Decker steam mop 9 months ago. Initially, I agreed with most of the concerns until I learned the problem usually was me and not the mop. For example, the electric cord to short. Yes, but then I learned to coordinate my mopping with the locations of my outlets. Now cord length is perfect! Even wrapping the electric cord after use turned out OK when I learned to secure the plug end at the top of the handle first, then looping the remaining cord around the hook a couple of times. No more problem. This mop doesn't last. My first mop broke (steamer) with two weeks of use. B & D replaced it. Now, I know to refill the tank before it goes dry. Conclusion: I think the B & D mop is the best value on the market for steam cleaning household floors!
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Reviewed in the United States on October 20, 2025
★★★★★ 1
DO NOT BUY - NOT USER FRIENDLY
Color: White
This mop has the worst design and cheaply made. I do not recommend buying it.
Cons: the cord is too short; there is no place on the mop to wind up the cord when you put it away. The cord just flops all over the floor. HOW CHEAP IS IT NOT TO PUT HOOKS ON IT SO THE CORD CAN BE WOUND UP? The mop does not stand on its own. It goes straight to the floor no matter what position you put it in it will not hold an upright position. It lays in the floor. The water compartment does not come off the mop. You have to pick the whole mop up and hold it under the faucet to fill. Or lay it on the floor and get a glass of water to fill. Makes a mess. One more big gripe - THERE ARE NO SETTINGS OTHER THAN ON /OFF AND THOSE BUTTONS ARE WERID. There is no high, med, OR low setting. Lastly the mop pad in the photos was not the one it came with. It had one very thin like disposable one. PROS- NONE. I RETURNED IT .
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Reviewed in the United States on April 20, 2026
★★★★★ 5
5 month review- still a favorite!
Color: White, Color: White
I purchased this steam mop 5 months ago and it is still one of my favorite purchases. I have used it every week 1-2 times per week and it still works great! My house has wood flooring throughout, two cats and a lot of traction. I can finally relax knowing my floors are clean and sanitized! It heats up very quickly and the cord is long enough to do large sections of floor at a time. I highly recommend this purchase! Especially if you have pets or kids.
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Reviewed in the United States on April 4, 2026
★★★★★ 3
I spent the $20 I saved on stuff to make this thing functional-ish
Color: White
The only reason this is getting three stars is because I do like the ability to shut off the steam and also it puts out the perfect amount of water and cleans well. For the bad, the design is terrible in four important ways as mentioned in other reviews (which I wish I had read before purchase so my fault). 1. This thing will not stand in its own unless in a very particular position and even then a slight gust of wind sends it toppling. 2. The one hook cord storage has to be the stupidest design I have ever seen. I did buy a command hook so I could wind the cord so that takes care of that issue (other than no notch to secure the plug to the cord). 3. The cord is not long enough but again I remedied this with a 6ft extension cord though I’m sure this is probably not recommended somewhere in the instructions so I take my own risk. 4. I did not like the pad included but have a ton from my old Shark steam mop (RIP) and they work well enough with this mop so it’s not completely useless. I would not recommend this mop to anyone. It is a bit cheaper than the Shark mop I was looking to replace but wish I wouldn’t have let my cheap side win and it’s spent the extra $20 to get a mop I know I like.
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Reviewed in the United States on August 18, 2025
★★★★★ 5
steam mop
Color: White
Great steam mop, light and easy to use.
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Reviewed in the United States on June 6, 2026