Product Description
National 3771 Multi-Purpose Oil Seal
The National 3771 is a multi-purpose oil seal designed for general sealing applications across heavy-duty truck and automotive systems. This versatile seal provides reliable performance in demanding engine and drivetrain environments where fluid containment is critical.
Key Features
- Multi-purpose design for broad compatibility across truck and auto applications
- Engineered to contain oils and fluids in high-stress engine and drivetrain components
- Meets or exceeds OEM specifications for reliable, long-lasting performance
- Proven National quality for heavy-duty service
Specifications
| Brand | National |
| Part Number | 3771 |
| Weight | 5.34 lb |
| Dimensions (L × W × H) | 2.75 × 0.69 × 2.75 in |
| UPC | 00724956108718 |
Cross References
| BECK ARNLEY | 0523986 |
| BECK ARNLEY | 0523995 |
| PACCAR PARTS | 13943CHR |
| ZF FRIEDRICHSHAFEN AG | 0734310378 |
| SKF INDUSTRIES, INC. | 13943 |
| GENERAL MOTORS CORPORATION | 10140533 |
| PACCAR PARTS | 13987CHR |
| DETROIT GASKET | 14091 |
| SKF INDUSTRIES, INC. | 13987 |
| NISSAN MOTOR CORPORATION IN USA, INC. | 32136V0100 |
⚠️ Prop 65 Warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
