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Mahle JV1668 Engine Main Bearing Gasket Set
Overview of Mahle JV1668 Engine Main Bearing Gasket Set
The Mahle JV1668 Engine Main Bearing Gasket Set is designed for reliable sealing performance in select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab vehicles. This gasket set includes a rear main retainer housing and features PTFE gasket and seal materials for durability and effective sealing.
- Includes rear main retainer housing for comprehensive sealing
- Gasket and seal made from PTFE material for chemical and temperature resistance
- One-piece seal style for simplified installation and consistent sealing
- Compatible with Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models
- Part number JV1668 ensures correct fitment and quality assurance
Technical Details and Material Specifications
This engine main bearing gasket set utilizes PTFE (polytetrafluoroethylene) for both gasket and seal components, providing excellent resistance to heat, oil, and chemical degradation. The one-piece seal design enhances sealing integrity around the rear main retainer housing, reducing the risk of leaks. The inclusion of the rear main retainer housing in the package ensures a complete sealing solution for the engine’s main bearing area.
Compatible Vehicles and Applications
The Mahle JV1668 gasket set is compatible with a range of vehicles including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab. Specific models supported include the Saab 9-7x, Isuzu Ascender, GMC Bravada, Chevrolet Envoy, Envoy XL, Envoy XUV, Rainier, Trailblazer, and Trailblazer EXT. This compatibility ensures proper fitment and reliable sealing performance in these engines.
Common Issues Addressed by This Gasket Set
- Prevents oil leaks from the engine main bearing area
- Eliminates seal degradation caused by heat and chemical exposure
- Reduces engine contamination from external debris
- Maintains proper oil pressure by ensuring a tight seal
- Prevents premature wear of engine components due to oil loss
Installation Notes and Tips
- Ensure the engine surface is clean and free of old gasket material before installation
- Use proper torque specifications when installing the rear main retainer housing
- Inspect the crankshaft seal surface for damage prior to installation
- Apply a thin layer of compatible lubricant to the PTFE seal to aid installation
- Verify fitment with part number JV1668 before beginning installation
Quality Assurance and Warranty Information
Mahle manufactures the JV1668 gasket set to meet OEM standards for durability and performance. The use of PTFE materials ensures long-lasting resistance to heat and chemical exposure. While specific warranty details may vary, Mahle products typically come with a limited warranty against manufacturing defects, providing confidence in the product’s reliability for Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab applications.
| Brand | Mahle |
|---|---|
| Part Number | JV1668 |
| Additional Package Contents | Rear Main Retainer Housing |
| Gasket Included | Yes |
| Gasket Material | PTFE |
| Seal Material | PTFE |
| Seal Style | One Piece |
This part fits 46 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2009 | GMC | Envoy | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2009 | Saab | 9-7x | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2008 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2008 | GMC | Envoy | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2008 | Isuzu | Ascender | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2008 | Saab | 9-7x | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2007 | Buick | Rainier | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2007 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2007 | GMC | Envoy | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2007 | Isuzu | Ascender | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2007 | Saab | 9-7x | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2006 | Buick | Rainier | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2006 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2006 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2006 | GMC | Envoy | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2006 | GMC | Envoy XL | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2006 | Isuzu | Ascender | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2006 | Saab | 9-7x | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2005 | Buick | Rainier | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2005 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2005 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2005 | GMC | Envoy | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2005 | GMC | Envoy XL | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2005 | GMC | Envoy XUV | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2005 | Isuzu | Ascender | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2005 | Saab | 9-7x | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2004 | Buick | Rainier | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2004 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2004 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2004 | GMC | Envoy | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2004 | GMC | Envoy XL | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2004 | GMC | Envoy XUV | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2004 | Isuzu | Ascender | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2004 | Oldsmobile | Bravada | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2003 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2003 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2003 | GMC | Envoy | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2003 | GMC | Envoy XL | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2003 | Isuzu | Ascender | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2003 | Oldsmobile | Bravada | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2002 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2002 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2002 | GMC | Envoy | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2002 | GMC | Envoy XL | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
| 2002 | Oldsmobile | Bravada | 4.2L | L6 | N/A | Contains Retainer Housing; PTFE |
* 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.