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National 450776 Wheel Seal - Rear Inner
Wheel Seal for Rear Inner Applications
National 450776 is a wheel seal built for rear inner axle positions on select Chrysler and Dodge vehicles. It uses nitrile material, a Redi-Coat surface, and OE-style dimensions to support a precise seal at the housing bore and shaft interface.
With fitment for classic Chrysler and Dodge rear axle applications, this National wheel seal is a direct replacement choice for service work on vehicles such as the Dodge Dart, Chrysler Imperial, and Chrysler New Yorker. Part number 450776 is also referenced in cross applications for the same use.
Key Features
- Wheel seal / oil seal for driveline and axle service
- Nitrile sealing material for durable contact performance
- Redi-Coat finish for improved sealing surface preparation
- Inside diameter: 1.375 in. / 34.930 mm
- Outside diameter: 2.690 in. / 68.330 mm
- Housing bore: 2.686 in. / 68.220 mm
- Width: 0.500 in. / 12.700 mm
- Fits rear inner positions on listed Chrysler and Dodge applications
Detailed Description
National 450776 is a Type 45 wheel seal in the 450000 series, engineered with a 1.375-inch shaft diameter and a 2.690-inch outside diameter for accurate axle sealing. The nitrile construction and Redi-Coat treatment support consistent contact at the sealing surface, while the zero-duplication design helps simplify part selection during axle and driveline repair. National has supplied sealing solutions for decades, and this part reflects that focus on dimensional accuracy and service fit.
Compatible With 1960-1964 Dodge Dart, rear inner; 1961-1962 Dodge Lancer, rear inner; 1955-1956 Chrysler 300, rear inner; 1951-1956 Chrysler Imperial, rear inner; 1950-1956 Chrysler New Yorker, rear inner; 1950-1956 Chrysler Newport, rear inner; and 1950-1956 Chrysler Town & Country, rear inner. This part cross-references Centric Parts 417.63007 for the same application.
What It Helps Address
- Axle oil leakage at the rear inner wheel seal
- Contamination entering the hub or axle area
- Seal wear from age, heat, and road exposure
- Service issues caused by incorrect seal dimensions
- Noise or driveline concerns related to a failing seal
Installation Notes and Tips
Verify shaft diameter, housing bore, width, and position before installation. This seal is specified for rear inner use and excludes Posi-Trac on the listed Dodge Dart and Lancer applications, as well as heavy duty axle versions on the listed Chrysler models. Clean the bore and shaft surface thoroughly, and inspect the axle and hub for wear or scoring before pressing in the new seal.
Quality Assurance
National is recognized for sealing products and has supported the aftermarket for more than 75 years. Part number 450776 is built to published dimensions and application data for accurate service replacement on the listed Chrysler and Dodge vehicles.
| Brand | National |
|---|---|
| Part Number | 450776 |
| Footnote | Zero Duplication Part |
| Housing Bore (Inch) | 2.686 |
| Housing Bore (MM) | 68.220 |
| Inside Diameter | 1.375 |
| Inside Diameter | 34.930 |
| Material | Nitrile |
| Outside Diameter | 2.690 |
| Outside Diameter | 68.330 |
| Outside Diameter (Inch) | 2.690 |
| Outside Diameter (mm) | 68.330 |
| Part Description | Oil Seal |
| Redicoat | Yes |
| Series | 450000 |
| Shaft (Inch) | 1.375 |
| Shaft (MM) | 34.930 |
| Type | 45 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.500 |
| Width (mm) | 12.700 |
This part fits 36 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1964 | Dodge | Dart | Rear Inner | Except Posi-Trac |
| 1963 | Dodge | Dart | Rear Inner | Except Posi-Trac |
| 1962 | Dodge | Dart | Rear Inner | Except Posi-Trac |
| 1962 | Dodge | Lancer | Rear Inner | Except Posi-Trac |
| 1961 | Dodge | Dart | Rear Inner | Except Posi-Trac |
| 1961 | Dodge | Lancer | Rear Inner | Except Posi-Trac |
| 1960 | Dodge | Dart | Rear Inner | Except Posi-Trac |
| 1956 | Chrysler | 300 | Rear Inner | Except Heavy Duty Axle |
| 1956 | Chrysler | Imperial | Rear Inner | Except Heavy Duty Axle |
| 1956 | Chrysler | New Yorker | Rear Inner | Except Heavy Duty Axle |
| 1956 | Chrysler | Newport | Rear Inner | Except Heavy Duty Axle |
| 1956 | Chrysler | Town & Country | Rear Inner | Except Heavy Duty Axle |
| 1955 | Chrysler | 300 | Rear Inner | Except Heavy Duty Axle |
| 1955 | Chrysler | Imperial | Rear Inner | Except Heavy Duty Axle |
| 1955 | Chrysler | New Yorker | Rear Inner | Except Heavy Duty Axle |
| 1955 | Chrysler | Newport | Rear Inner | Except Heavy Duty Axle |
| 1955 | Chrysler | Town & Country | Rear Inner | Except Heavy Duty Axle |
| 1954 | Chrysler | Imperial | Rear Inner | Except Heavy Duty Axle |
| 1954 | Chrysler | New Yorker | Rear Inner | Except Heavy Duty Axle |
| 1954 | Chrysler | Newport | Rear Inner | Except Heavy Duty Axle |
| 1954 | Chrysler | Town & Country | Rear Inner | Except Heavy Duty Axle |
| 1953 | Chrysler | Imperial | Rear Inner | Except Heavy Duty Axle |
| 1953 | Chrysler | New Yorker | Rear Inner | Except Heavy Duty Axle |
| 1953 | Chrysler | Newport | Rear Inner | Except Heavy Duty Axle |
| 1953 | Chrysler | Town & Country | Rear Inner | Except Heavy Duty Axle |
| 1952 | Chrysler | Imperial | Rear Inner | Except Heavy Duty Axle |
| 1952 | Chrysler | New Yorker | Rear Inner | Except Heavy Duty Axle |
| 1952 | Chrysler | Newport | Rear Inner | Except Heavy Duty Axle |
| 1952 | Chrysler | Town & Country | Rear Inner | Except Heavy Duty Axle |
| 1951 | Chrysler | Imperial | Rear Inner | Except Heavy Duty Axle |
| 1951 | Chrysler | New Yorker | Rear Inner | Except Heavy Duty Axle |
| 1951 | Chrysler | Newport | Rear Inner | Except Heavy Duty Axle |
| 1951 | Chrysler | Town & Country | Rear Inner | Except Heavy Duty Axle |
| 1950 | Chrysler | New Yorker | Rear Inner | Except Heavy Duty Axle |
| 1950 | Chrysler | Newport | Rear Inner | Except Heavy Duty Axle |
| 1950 | Chrysler | Town & Country | Rear Inner | Except Heavy Duty Axle |
* 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.