Dorman 904-171 Engine Valve Cover Gasket
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Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$75.89
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
This valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles. Made of durable materials, it is engineered to help ensure a long-lasting seal under extreme underhood conditions.
- Direct replacement - this valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles
- Ideal solution - engineered to help ensure a secure seal when an original gasket is due for service or damaged
- Durable construction - designed and manufactured to strict specifications for reliable performance
- Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2011 | Workhorse | LF72 | V8 403 6.6L (6599cc); DIESEL | Left; Right | Valve Cover Kit |
| 2010 | Chevrolet | Express 2500 | V8 403 6.6L (6599cc); Engine Desg. LMM; VIN 6 | Left; Right | Valve Cover Kit |
| 2010 | Chevrolet | Express 3500 | V8 403 6.6L (6599cc); Engine Desg. LMM; VIN 6 | Left; Right | Valve Cover Kit |
| 2010 | Chevrolet | Express 4500 | V8 403 6.6L (6599cc); Engine Desg. LMM; VIN 6 | Left; Right | Valve Cover Kit |
| 2010 | Chevrolet | Silverado 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2010 | Chevrolet | Silverado 3500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2010 | GMC | Savana 2500 | V8 403 6.6L (6599cc); Engine Desg. LMM; VIN 6 | Left; Right | Valve Cover Kit |
| 2010 | GMC | Savana 3500 | V8 403 6.6L (6599cc); Engine Desg. LMM; VIN 6 | Left; Right | Valve Cover Kit |
| 2010 | GMC | Savana 4500 | V8 403 6.6L (6599cc); Engine Desg. LMM; VIN 6 | Left; Right | Valve Cover Kit |
| 2010 | GMC | Sierra 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2010 | GMC | Sierra 3500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2010 | Workhorse | LF72 | V8 403 6.6L (6599cc); DIESEL | Left; Right | Valve Cover Kit |
| 2009 | Chevrolet | Express 2500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | Chevrolet | Express 3500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | Chevrolet | Express 4500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | Chevrolet | Silverado 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | Chevrolet | Silverado 3500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | GMC | Savana 2500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | GMC | Savana 3500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | GMC | Savana 4500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | GMC | Sierra 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | GMC | Sierra 3500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2009 | Workhorse | LF72 | V8 403 6.6L (6599cc); DIESEL | Left; Right | Valve Cover Kit |
| 2009 | Workhorse | R26 | V8 403 6.6L (6599cc); DIESEL | Left; Right | Valve Cover Kit |
| 2008 | Chevrolet | Express 2500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2008 | Chevrolet | Express 3500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2008 | Chevrolet | Silverado 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2008 | Chevrolet | Silverado 3500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2008 | GMC | Savana 2500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2008 | GMC | Savana 3500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2008 | GMC | Sierra 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2008 | GMC | Sierra 3500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2008 | Workhorse | LF72 | V8 403 6.6L (6599cc); DIESEL | Left; Right | Valve Cover Kit |
| 2007 | Chevrolet | Express 2500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2007 | Chevrolet | Express 3500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2007 | Chevrolet | Silverado 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2007 | Chevrolet | Silverado 3500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2007 | GMC | Savana 2500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2007 | GMC | Savana 3500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2007 | GMC | Sierra 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2007 | GMC | Sierra 3500 Classic | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2007 | GMC | Sierra 3500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2007 | Workhorse | LF72 | V8 403 6.6L (6599cc); DIESEL | Left; Right | Valve Cover Kit |
| 2006 | Chevrolet | Express 2500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2006 | Chevrolet | Express 3500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2006 | Chevrolet | Silverado 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2006 | Chevrolet | Silverado 3500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2006 | GMC | Savana 2500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2006 | GMC | Savana 3500 | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
| 2006 | GMC | Sierra 2500 HD | V8 403 6.6L (6599cc) | Left; Right | Valve Cover Kit |
Product Specifications
| Configuration: | Two Piece |
|---|---|
| Grade Type: | Standard Replacement |
| Material: | Silicone |
| Package Contents: | 1 Valve Cover Gasket; 1 Rocker Box Gasket |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Thickness: | 3 mm |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 97312341 | GENERAL MOTORS |
| 97321295 | GENERAL MOTORS |