Dorman 635-521 Timing Cover
Confirm Fitment Before You Buy
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
$134.82
Couldn't load pickup availability
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 direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.
- Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
- Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
- Cost-effective solution - offers original equipment quality at a competitive price
- Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2012 | Chevrolet | Colorado | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2012 | Chevrolet | Colorado | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2012 | GMC | Canyon | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2012 | GMC | Canyon | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2011 | Chevrolet | Colorado | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2011 | Chevrolet | Colorado | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2011 | GMC | Canyon | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2011 | GMC | Canyon | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2010 | Chevrolet | Colorado | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2010 | Chevrolet | Colorado | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2010 | GMC | Canyon | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2010 | GMC | Canyon | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2010 | Hummer | H3 | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2009 | Chevrolet | Colorado | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2009 | Chevrolet | Colorado | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2009 | Chevrolet | Trailblazer | L6 256 4.2L | Does Not Include Oil Pump | |
| 2009 | GMC | Canyon | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2009 | GMC | Canyon | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2009 | GMC | Envoy | L6 256 4.2L | Does Not Include Oil Pump | |
| 2009 | Hummer | H3 | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2009 | Saab | 9-7x | L6 256 4.2L | Does Not Include Oil Pump | |
| 2008 | Chevrolet | Colorado | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2008 | Chevrolet | Colorado | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2008 | Chevrolet | Trailblazer | L6 256 4.2L | Does Not Include Oil Pump | |
| 2008 | GMC | Canyon | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2008 | GMC | Canyon | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2008 | GMC | Envoy | L6 256 4.2L | Does Not Include Oil Pump | |
| 2008 | Hummer | H3 | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2008 | Isuzu | Ascender | L6 256 4.2L | Does Not Include Oil Pump | |
| 2008 | Saab | 9-7x | L6 256 4.2L | Does Not Include Oil Pump | |
| 2007 | Buick | Rainier | L6 256 4.2L | Does Not Include Oil Pump | |
| 2007 | Chevrolet | Colorado | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2007 | Chevrolet | Colorado | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2007 | Chevrolet | Trailblazer | L6 256 4.2L | Does Not Include Oil Pump | |
| 2007 | GMC | Canyon | L4 178 2.9L (2921cc) | Does Not Include Oil Pump | |
| 2007 | GMC | Canyon | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2007 | GMC | Envoy | L6 256 4.2L | Does Not Include Oil Pump | |
| 2007 | Hummer | H3 | L5 223 3.7L (3654cc) | Does Not Include Oil Pump | |
| 2007 | Isuzu | Ascender | L6 256 4.2L | Does Not Include Oil Pump | |
| 2007 | Saab | 9-7x | L6 256 4.2L | Does Not Include Oil Pump | |
| 2006 | Buick | Rainier | L6 256 4.2L | Does Not Include Oil Pump | |
| 2006 | Chevrolet | Colorado | L4 169 2.8L (2770cc) | Does Not Include Oil Pump | |
| 2006 | Chevrolet | Colorado | L5 211 3.5L (3460cc) | Does Not Include Oil Pump | |
| 2006 | Chevrolet | Trailblazer | L6 256 4.2L | Does Not Include Oil Pump | |
| 2006 | Chevrolet | Trailblazer EXT | L6 256 4.2L | Does Not Include Oil Pump | |
| 2006 | GMC | Canyon | L4 169 2.8L (2770cc) | Does Not Include Oil Pump | |
| 2006 | GMC | Canyon | L5 211 3.5L (3460cc) | Does Not Include Oil Pump | |
| 2006 | GMC | Envoy | L6 256 4.2L | Does Not Include Oil Pump | |
| 2006 | GMC | Envoy XL | L6 256 4.2L | Does Not Include Oil Pump | |
| 2006 | Hummer | H3 | L5 211 3.5L (3460cc) | Does Not Include Oil Pump |
Product Specifications
| Color: | Silver |
|---|---|
| Grade Type: | Standard Replacement |
| Length: | 11.75 in |
| Material: | Aluminum |
| Mounting Hardware Included: | No |
| Package Contents: | Timing Cover; Liquid Gasket; Water Pump Gasket; Seal; 2 O Rings; Gasket |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Width (in): | 13.5 in |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 12628565 | GENERAL MOTORS |