OE Quality
60-Day Returns

Mahle C31756 Engine Coolant Outlet Gasket
Mahle C31756 Engine Coolant Outlet Gasket
Mahle C31756 is an OEM-standard engine coolant outlet gasket made from molded rubber for reliable sealing at the coolant outlet. It is built for direct replacement service on select Chevrolet, GMC, Buick, Hummer, Isuzu, Saab, and Oldsmobile applications.
Key Features
- OEM Standard grade for factory-style fit and sealing performance
- Molded rubber gasket material for consistent compression and sealing
- Engine coolant outlet gasket for cooling system service
- Mahle sealing product line trusted by OEMs and technicians
- Cross-reference: FEL-PRO 36009
Detailed Description
Mahle C31756 is an engine coolant outlet gasket engineered for vehicles that require a molded rubber seal at the coolant outlet or thermostat sealing interface. This part number is listed for 2002-2006 Chevrolet Colorado, 2002-2005 Chevrolet Trailblazer and Trailblazer EXT, 2004-2005 Buick Rainier, 2004-2006 GMC Canyon, 2002-2005 GMC Envoy, Envoy XL, and 2004-2005 Envoy XUV, plus 2003-2005 Isuzu Ascender, 2006 Hummer H3, 2006 Isuzu i-280, 2006 Isuzu i-350, 2005 Saab 9-7x, and 2002-2004 Oldsmobile Bravada. Mahle C31756 also cross-references General Motors 24576967 and Isuzu 8-24576-0 for the same application.
What It Helps Address
- Coolant seepage at the outlet sealing surface
- Loss of seal integrity during thermostat or outlet service
- Coolant odor or visible residue around the housing
- Pressure loss caused by a worn or flattened gasket
- Repeat cooling system leaks after prior service
Installation Notes and Tips
Clean the mating surfaces thoroughly before installation and inspect the coolant outlet housing for damage or warpage. For 2004-2006 Chevrolet Colorado and 2004-2006 GMC Canyon applications, follow the included note for optimal performance during installation of the engine coolant thermostat seal and use the gasket from the set as directed by the service procedure. Verify the application by year, make, and model before installation.
Quality Assurance
Mahle sealing products are used by OEMs and technicians worldwide, and this gasket is supplied to OEM-standard expectations for fit and sealing consistency.
| Brand | Mahle |
|---|---|
| Part Number | C31756 |
| Additional Package Contents | None |
| Gasket Material | Molded rubber |
| Item Grade | Oem standard |
This part fits 42 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Chevrolet | Colorado | 3.5L | L5 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2006 | Chevrolet | Colorado | 2.8L | L4 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2006 | GMC | Canyon | 3.5L | L5 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2006 | GMC | Canyon | 2.8L | L4 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2006 | Hummer | H3 | 3.5L | L5 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2006 | Isuzu | i-280 | 2.8L | L4 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2006 | Isuzu | i-350 | 3.5L | L5 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | Buick | Rainier | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | Chevrolet | Colorado | 3.5L | L5 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | Chevrolet | Colorado | 2.8L | L4 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | GMC | Canyon | 3.5L | L5 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | GMC | Canyon | 2.8L | L4 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | GMC | Envoy | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | GMC | Envoy XL | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | GMC | Envoy XUV | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | Isuzu | Ascender | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2005 | Saab | 9-7x | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | Buick | Rainier | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | Chevrolet | Colorado | 3.5L | L5 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | Chevrolet | Colorado | 2.8L | L4 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | GMC | Canyon | 3.5L | L5 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | GMC | Canyon | 2.8L | L4 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | GMC | Envoy | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | GMC | Envoy XL | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | GMC | Envoy XUV | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | Isuzu | Ascender | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2004 | Oldsmobile | Bravada | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2003 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2003 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2003 | GMC | Envoy | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2003 | GMC | Envoy XL | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2003 | Isuzu | Ascender | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2003 | Oldsmobile | Bravada | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2002 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2002 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2002 | GMC | Envoy | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2002 | GMC | Envoy XL | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
| 2002 | Oldsmobile | Bravada | 4.2L | L6 | N/A | For optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.