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National 3677 Wheel Seal - Rear Inner
National 3677 Wheel Seal for Rear Inner Applications
National 3677 is a wheel seal built for rear inner service on select Chrysler, Dodge, and Plymouth vehicles. It uses nitrile construction, a Redi-Coat surface, and a 3000 series design to support sealing performance in driveline and axle applications.
Key Features
- Part number 3677 wheel seal / oil seal
- Nitrile material for sealing durability
- Redi-Coat finish for improved installation characteristics
- 3000 series design
- Inside diameter: 1.500 in. / 38.100 mm
- Outside diameter: 1.993 in. / 50.620 mm
- Flanged outside diameter: 2.500 in. / 63.500 mm
- Housing bore: 1.989 in. / 50.520 mm
- Width: 0.285 in. / 7.240 mm
Detailed Description
National 3677 is an oil seal specified for rear inner wheel applications and is sized for a 1.500-inch shaft with a 1.989-inch housing bore. The seal’s nitrile construction and Redi-Coat surface help support consistent sealing at the hub, while the 3000 series design reflects National’s long-running focus on sealing solutions for modern vehicle service. This part cross-references SKF 14848 for the same application.
For fitment-based searches, this seal is listed for 1981-1982 Dodge Aries rear inner, 1982 Dodge Rampage rear inner, 1982 Chrysler LeBaron rear inner, 1982 Chrysler Town & Country rear inner, and 1981-1982 Plymouth Reliant rear inner. If you are sourcing a National 3677 wheel seal for a rear inner hub repair, verify shaft and housing dimensions before installation.
What This Seal Helps Address
- Gear oil or lubricant leakage at the wheel end
- Contamination entering the hub or axle area
- Seal wear from age, heat, or mileage
- Moisture and debris intrusion around the rear inner hub
- Service replacement for worn wheel seal assemblies
Installation Notes and Tips
Clean the hub bore and shaft sealing surface before installation. Inspect the shaft, bearing area, and housing for scoring or corrosion, and confirm the 1.500-inch shaft size and 1.989-inch housing bore match the application. Proper seating is important for rear inner wheel seal performance on Chrysler LeBaron, Dodge Aries, and Plymouth Reliant service jobs.
Quality Assurance
National has supplied sealing products for more than 75 years and continues to develop sealing solutions for current vehicle service needs. Part number 3677 is built to National’s established sealing standards for driveline and axle applications.
| Brand | National |
|---|---|
| Part Number | 3677 |
| Inside Diameter | 1.500 |
| Inside Diameter | 38.100 |
| Outside Diameter | 1.993 |
| Outside Diameter | 50.620 |
| Flanged Outside Diameter (Inch) | 2.500 |
| Flanged Outside Diameter (MM) | 63.500 |
| Housing Bore (Inch) | 1.989 |
| Housing Bore (MM) | 50.520 |
| Material | Nitrile |
| Outside Diameter (Inch) | 1.993 |
| Outside Diameter (mm) | 50.620 |
| Part Description | Oil seal |
| Redicoat | Yes |
| Series | 3000 |
| Shaft (Inch) | 1.500 |
| Shaft (MM) | 38.100 |
| Type | 287 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.285 |
| Width (mm) | 7.240 |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1982 | Chrysler | LeBaron | Rear Inner | |
| 1982 | Chrysler | Town & Country | Rear Inner | |
| 1982 | Dodge | Aries | Rear Inner | |
| 1982 | Dodge | Rampage | Rear Inner | |
| 1982 | Plymouth | Reliant | Rear Inner | |
| 1981 | Dodge | Aries | Rear Inner | |
| 1981 | Plymouth | Reliant | Rear Inner |
* 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.