Enginetech Lower Gasket Set for 01-10 Chevrolet/GMC/Hummer 6.6L/400WHAT'S INCLUDED:
• Lower Gasket Set
• Rear main seal
WHAT'S NOT INCLUDED:
• Valve stem seals
• Custom gaskets or seals beyond OEM fitment
| Year | Make | Model | Engine | Notes |
| 2001-2004 | Chevrolet | Silverado 3500 | 6.6L/403 | OHV V8 | LB7 | Vin "1" | Duramax | |
| 2001-2005 | Chevrolet | Silverado 2500 HD | 6.6L/403 | OHV V8 | LB7 | Vin "1" | Duramax | |
| 2001-2004 | GMC | Sierra 3500 | 6.6L/403 | OHV V8 | LB7 | Vin "1" | Duramax | |
| 2001-2006 | GMC | Sierra 2500 HD | 6.6L/403 | V8 | |
| 2003-2004 | Chevrolet | C4500 Kodiak | 6.6L/403 | OHV V8 | LB7 | Vin "1" | Duramax | |
| 2003-2004 | Chevrolet | C5500 Kodiak | 6.6L/403 | OHV V8 | LB7 | Vin "1" | Duramax | |
| 2003-2004 | GMC | C4500 Topkick | 6.6L/403 | OHV V8 | LB7 | Vin "1" | Duramax | |
| 2003-2004 | GMC | C5500 Topkick | 6.6L/403 | OHV V8 | Vin "1" | Duramax | |
| 2003-2004 | GMC | C4500 Topkick | 6.6L/403 | OHV V8 | Vin "1" | Duramax | |
| 2003-2004 | GMC | C5500 Topkick | 6.6L/403 | OHV V8 | LB7 | Vin "1" | Duramax | |
| 2004 | Chevrolet | C5500 Kodiak | 6.6L/403 | OHV V8 | Vin "1" | Duramax | |
| 2004-2006 | Chevrolet | Silverado 2500 HD | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2004-2006 | Chevrolet | Silverado 3500 | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2004-2007 | Chevrolet | C5500 Kodiak | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2004-2007 | Chevrolet | C4500 Kodiak | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2004-2006 | GMC | Sierra 3500 | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2004-2007 | GMC | C5500 Topkick | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2004-2007 | GMC | C4500 Topkick | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2005, 2007-2009 | GMC | C4500 Topkick | 6.6L/403 | OHV V8 | LMM | Vin "9" | Duramax | |
| 2006 | Chevrolet | Silverado 3500 | 6.6L/403 | OHV V8 | LBZ | Vin "D" | Duramax | |
| 2006 | Chevrolet | Silverado 2500 HD | 6.6L/403 | OHV V8 | LBZ | Vin "D" | Duramax | |
| 2006-2007 | Chevrolet | Express 2500 | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| Year | Make | Model | Engine | Notes |
| 2006-2007 | Chevrolet | Express 3500 | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2006 | GMC | Sierra 3500 | 6.6L/403 | OHV V8 | LBZ | Vin "D" | Duramax | |
| 2006-2007 | GMC | Savana 2500 | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2006-2007 | GMC | Savana 3500 | 6.6L/403 | OHV V8 | LLY | Vin "2" | Duramax | |
| 2006 | Hummer | H1 | 6.6L/400 | OHV V8 | Vin "3" | Duramax | |
| 2007 | Chevrolet | Silverado 3500 Classic | 6.6L/403 | OHV V8 | LBZ | Vin "D" | Duramax | |
| 2007 | Chevrolet | Silverado 2500 HD Classic | 6.6L/403 | OHV V8 | LBZ | Vin "D" | Duramax | |
| 2007-2009 | Chevrolet | C5500 Kodiak | 6.6L/403 | OHV V8 | LMM | Vin "9" | Duramax | |
| 2007-2009 | Chevrolet | C4500 Kodiak | 6.6L/403 | OHV V8 | LMM | Vin "9" | Duramax | |
| 2007-2010 | Chevrolet | Express 3500 | 6.6L/403 | OHV V8 | LMM | Vin "6" | Duramax | |
| 2007-2010 | Chevrolet | Silverado 2500 HD | 6.6L/403 | OHV V8 | LMM | Vin "6" | Duramax | |
| 2007-2010 | Chevrolet | Silverado 3500 HD | 6.6L/403 | OHV V8 | LMM | Vin "6" | Duramax | |
| 2007-2010 | Chevrolet | Express 2500 | 6.6L/403 | OHV V8 | LMM | Vin "6" | Duramax | |
| 2007 | GMC | Sierra 3500 Classic | 6.6L/403 | OHV V8 | LBZ | Vin "D" | Duramax | |
| 2007 | GMC | Sierra 2500 HD Classic | 6.6L/403 | OHV V8 | LBZ | Vin "D" | Duramax | |
| 2007-2009 | GMC | C5500 Topkick | 6.6L/403 | OHV V8 | LMM | Vin "9" | Duramax | |
| 2007-2010 | GMC | Savana 3500 | 6.6L/403 | OHV V8 | LMM | Vin "6" | Duramax | |
| 2007-2010 | GMC | Savana 2500 | 6.6L/403 | OHV V8 | LMM | Vin "6" | Duramax | |
| 2007-2010 | GMC | Sierra 2500 HD | 6.6L/403 | OHV V8 | LMM | Vin "6" | Duramax | |
| 2009-2010 | GMC | Savana 4500 | 6.6L/403 | OHV V8 | LMM | Vin "6" | Duramax | |
| 2010 | Chevrolet | Express 2500 | 6.6L/403 | OHV V8 | LGH | Vin "L" | Duramax | |
| 2010 | Chevrolet | Express 3500 | 6.6L/403 | OHV V8 | LGH | Vin "L" | Duramax | |
| Year | Make | Model | Engine | Notes |
| 2010 | GMC | Savana 2500 | 6.6L/403 | OHV V8 | LGH | Vin "L" | Duramax | |
| 2010 | GMC | Savana 3500 | 6.6L/403 | OHV V8 | LGH | Vin "L" | Duramax | |
| 2010 | GMC | Savana 4500 | 6.6L/403 | OHV V8 | LGH | Vin "L" | Duramax | |