OE Quality
60-Day Returns

SKF 6120 Automatic Transmission Oil Pump Seal - Front
Reliable Automatic Transmission Oil Pump Seal for Buick Vehicles
The SKF 6120 automatic transmission oil pump seal is designed to provide a precise fit and durable sealing performance for Buick Century and Skylark models. Engineered with nitrile sealing surfaces, this seal ensures effective fluid retention and protection against leaks in your vehicle's transmission system.
- Width: 0.188 inches for optimal sealing depth
- Outside Diameter: 0.879 inches to match OEM specifications
- Shaft Diameter: 0.625 inches for accurate fitment
- Sealing Surface Type: Nitrile, offering resistance to transmission fluids and wear
- Compatible with Buick Century and Skylark automatic transmissions
Detailed Product Description
The SKF 6120 automatic transmission oil pump seal is manufactured to meet the exact dimensions required for Buick Century and Skylark models. Its nitrile sealing surface is specifically chosen for its compatibility with transmission fluids, providing a reliable barrier against leaks and contamination. The seal’s precise width of 0.188 inches and outside diameter of 0.879 inches ensure a secure fit within the transmission oil pump assembly, while the 0.625-inch shaft diameter matches the pump shaft to maintain proper sealing pressure. This part is essential for maintaining transmission fluid integrity and preventing premature wear of transmission components.
Common Applications and Issues Addressed
- Prevents automatic transmission fluid leaks in Buick Century and Skylark models
- Reduces risk of transmission pump damage due to fluid loss
- Helps maintain proper hydraulic pressure within the transmission system
- Addresses seal wear and degradation from heat and fluid exposure
- Supports smooth transmission operation by preventing contamination ingress
Installation Notes and Tips
When installing the SKF 6120 transmission oil pump seal, ensure the sealing surface is clean and free of debris. Lubricate the nitrile seal lightly with transmission fluid to ease installation and prevent damage. Carefully align the seal with the pump shaft and press it evenly into place to avoid distortion. Verify the seal dimensions against the original part to confirm compatibility with your Buick Century or Skylark transmission assembly.
Quality Assurance and Warranty
SKF manufactures the 6120 automatic transmission oil pump seal to meet stringent quality standards, ensuring durability and reliable performance. The use of nitrile material provides resistance to common transmission fluids and operational wear. While specific warranty details are not provided, SKF products are generally backed by the brand’s commitment to quality and consistency in automotive sealing solutions.
| Brand | SKF |
| Part Number | 6120 |
| Width | 0.188 |
| Outside Diameter | 0.879 |
| Sealing Surface Type | Nitrile |
| Shaft Diameter | 0.625 |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1985 | Buick | Century | Front | Shaft |
| 1985 | Buick | Skylark | Front | Shaft |
| 1984 | Buick | Century | Front | Shaft |
| 1984 | Buick | Skylark | Front | Shaft |
| 1983 | Buick | Century | Front | Shaft |
| 1983 | Buick | Skylark | Front | Shaft |
| 1982 | Buick | Century | Front | Shaft |
| 1982 | Buick | Skylark | Front | Shaft |
* 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.