OE Quality
60-Day Returns

Victor Reinz 12-10066-01 Engine Valve Stem Oil Seal Set - Intake and Exhaust
Overview of Victor Reinz Engine Valve Stem Oil Seal Set 12-10066-01
The Victor Reinz Engine Valve Stem Oil Seal Set 12-10066-01 is designed for reliable sealing performance in select Chevrolet, GMC, and Hummer vehicles. Engineered with molded rubber and metal materials, this seal set ensures effective oil control and durability for heavy-duty applications.
- Constructed from molded rubber and metal for durability
- Inside diameter: 0.228 inches for precise fit
- Thickness: 0.393 inches ensuring proper sealing depth
- Outside diameter: 0.575 inches for secure installation
- Regular grade type with positive sealing surface
- Compatible with Chevrolet Express 2500/3500, GMC Sierra 2500/3500 HD, Hummer H1, and more
Detailed Product Description
The Victor Reinz 12-10066-01 engine valve stem oil seal set is manufactured to meet OEM specifications, providing a reliable seal between the valve stem and valve guide. The combination of molded rubber and metal materials offers resistance to heat, oil, and wear, which is critical for maintaining engine performance. With an inside diameter of 0.228 inches and an outside diameter of 0.575 inches, this seal set fits precisely on valve stems to prevent oil leakage. The thickness of 0.393 inches supports a secure fit and proper sealing pressure. Featuring a positive sealing surface type and regular grade, this set is suitable for standard engine applications in heavy-duty Chevrolet, GMC, and Hummer models.
Compatible Vehicles and Applications
This engine valve stem oil seal set is compatible with a range of Chevrolet, GMC, and Hummer vehicles, including:
- Chevrolet Express 2500 and 3500
- GMC Savana 2500 and 3500
- GMC Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, and Sierra 3500 HD
- Chevrolet Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, and Silverado 3500 HD
- Hummer H1
Common Issues Addressed by This Seal Set
- Prevents oil leaks around the valve stem
- Reduces valve guide wear caused by oil contamination
- Maintains proper engine oil pressure and lubrication
- Helps avoid engine smoking due to oil seepage
- Improves overall engine efficiency and longevity
Installation Notes and Tips
When installing the Victor Reinz 12-10066-01 valve stem oil seal set, ensure the valve stems and guides are clean and free of debris. Use appropriate tools to avoid damaging the molded rubber seal during installation. Verify the seal orientation matches the positive sealing surface direction for optimal performance. It is recommended to replace valve stem seals in sets to maintain balanced engine operation.
Quality Assurance and Warranty
Victor Reinz manufactures this engine valve stem oil seal set to meet strict quality standards, ensuring consistent sealing performance and durability. The product is designed to comply with OEM specifications for Chevrolet, GMC, and Hummer vehicles. While specific warranty details are not provided, Victor Reinz products typically come with manufacturer-backed quality assurance to support professional automotive repairs.
| Brand | Victor Reinz |
|---|---|
| Part Number | 12-10066-01 |
| Grade Type | Regular |
| Inside Diameter | 0.228 |
| Material | Molded Rubber And Metal |
| Outside Diameter | 0.575 |
| Sealing Surface Type | Positive |
| Thickness | 0.393 |
This part fits 65 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | |
| 2010 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | |
| 2010 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2010 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | |
| 2010 | GMC | Savana 2500 | 6.6L | V8 | N/A | |
| 2010 | GMC | Savana 3500 | 6.6L | V8 | N/A | |
| 2010 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2010 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | |
| 2009 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | |
| 2009 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | |
| 2009 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2009 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | |
| 2009 | GMC | Savana 2500 | 6.6L | V8 | N/A | |
| 2009 | GMC | Savana 3500 | 6.6L | V8 | N/A | |
| 2009 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2009 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | |
| 2008 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | |
| 2008 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | |
| 2008 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2008 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | |
| 2008 | GMC | Savana 2500 | 6.6L | V8 | N/A | |
| 2008 | GMC | Savana 3500 | 6.6L | V8 | N/A | |
| 2008 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2008 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | |
| 2007 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | |
| 2007 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | |
| 2007 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2007 | Chevrolet | Silverado 2500 HD Classic | 6.6L | V8 | N/A | |
| 2007 | Chevrolet | Silverado 3500 Classic | 6.6L | V8 | N/A | |
| 2007 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | |
| 2007 | GMC | Savana 2500 | 6.6L | V8 | N/A | |
| 2007 | GMC | Savana 3500 | 6.6L | V8 | N/A | |
| 2007 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2007 | GMC | Sierra 2500 HD Classic | 6.6L | V8 | N/A | |
| 2007 | GMC | Sierra 3500 Classic | 6.6L | V8 | N/A | |
| 2007 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | |
| 2006 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | |
| 2006 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | |
| 2006 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2006 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | |
| 2006 | GMC | Savana 2500 | 6.6L | V8 | N/A | |
| 2006 | GMC | Savana 3500 | 6.6L | V8 | N/A | |
| 2006 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2006 | GMC | Sierra 3500 | 6.6L | V8 | N/A | |
| 2006 | Hummer | H1 | N/A | |||
| 2005 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2005 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | |
| 2005 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2005 | GMC | Sierra 3500 | 6.6L | V8 | N/A | |
| 2004 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2004 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | |
| 2004 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2004 | GMC | Sierra 3500 | 6.6L | V8 | N/A | |
| 2003 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2003 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | |
| 2003 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2003 | GMC | Sierra 3500 | 6.6L | V8 | N/A | |
| 2002 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2002 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | |
| 2002 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2002 | GMC | Sierra 3500 | 6.6L | V8 | N/A | |
| 2001 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | |
| 2001 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | |
| 2001 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | |
| 2001 | GMC | Sierra 3500 | 6.6L | V8 | N/A |
* 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.