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National 323138 Steering Gear Sector Shaft Seal
| Brand | National 323138 |
|---|---|
| Housing Bore (Inch) | 1.828 |
| Housing Bore (MM) | 46.430 |
| Inside Diameter | 1.375 |
| Inside Diameter | 34.930 |
| Material | Nitrile |
| Outside Diameter | 1.834 |
| Outside Diameter | 46.580 |
| Outside Diameter (Inch) | 1.834 |
| Outside Diameter (mm) | 46.580 |
| Part Description | Oil Seal |
| Sealing Material | Nitrile |
| Series | 320000 |
| Shaft (Inch) | 1.375 |
| Shaft (MM) | 34.930 |
| Thickness | 0.250 |
| Thickness | 6.350 |
| Type | 32 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.250 |
| Width (mm) | 6.350 |
| Fits | Dodge, Plymouth, Ford, and Fargo · 112 vehicles |
Nitrile seal. Provides dependable sealing performance in steering gear applications.
Oil seal. Helps keep lubricant contained and contaminants out.
Premium sealing solutions. Backed by National’s long-standing sealing expertise.
Cross-references BBB Industries 13537, Continental 66974 and Dorman - HELP 47007 for the same application. See all 48.
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Not what you need? See all Steering Gear Sector Shaft Seal options
Steering Gear Sector Shaft Seal for Classic Trucks
National 323138 is a steering gear sector shaft seal built for manual steering applications that need a precise sealing surface. With nitrile sealing material and OE-style dimensions, it supports leak control in older Dodge and Ford steering gear assemblies.
Key Features
- Part number: 323138
- Steering gear sector shaft seal / oil seal
- Nitrile sealing material for dependable fluid resistance
- Inside diameter: 1.375 in. (34.930 mm)
- Outside diameter: 1.834 in. (46.580 mm)
- Thickness/width: 0.250 in. (6.350 mm)
- Housing bore: 1.828 in. (46.430 mm)
- National 320000 series, Type 32
Detailed Description
National 323138 is designed for steering gear sector shaft sealing in older manual steering systems. The nitrile construction and measured dimensions help it seat properly in the housing bore while maintaining a tight seal around the shaft. This part is a practical choice for restoring steering gear sealing performance on applications such as Dodge B150, B250, B350, D150, D250, D350, W150, W250, W350, Ramcharger, and Ford F-100, F-250, and F-350 models listed in the fitment data. This part cross-references Dorman - HELP 47007 and Wix 46171 for the same application.
What It Helps Address
- Steering gear oil seepage at the sector shaft
- Fluid loss from worn or hardened seal material
- Contamination entering the steering gear housing
- Loose sealing caused by age-related wear in manual steering systems
- Service issues on classic Dodge and Ford steering gear assemblies
Installation Notes and Tips
Verify shaft, housing bore, and width dimensions before installation. Clean the steering gear sealing surface thoroughly and inspect the sector shaft for scoring or wear that could affect seal life. Confirm the vehicle uses the steering gear configuration listed in the fitment data, especially on 1963-1972 Ford F-100, F-250, and F-350 manual steering applications and 1977-1985 Dodge truck and Ramcharger models.
Quality Assurance
National has supplied sealing solutions for more than 75 years and continues to develop sealing components for current and legacy vehicle applications. Part number 323138 reflects that engineering focus with a dimensionally specific seal for steering gear service.
This part fits 112 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1985 | Dodge | B150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1984 | Dodge | B150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1983 | Dodge | B150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1983 | Dodge | B250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1983 | Dodge | B350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1983 | Dodge | D150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1983 | Dodge | D250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1983 | Dodge | D350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1983 | Plymouth | PB150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1983 | Plymouth | PB250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1983 | Plymouth | PB350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Dodge | B150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Dodge | B250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Dodge | B350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Dodge | D150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Dodge | D250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Dodge | D350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Dodge | Ramcharger | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Plymouth | PB150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Plymouth | PB250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1982 | Plymouth | PB350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Dodge | B150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Dodge | B250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Dodge | B350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Dodge | D150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Dodge | D250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Dodge | D350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Dodge | W150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Dodge | W250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Dodge | W350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Plymouth | PB150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Plymouth | PB250 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1981 | Plymouth | PB350 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1980 | Dodge | B100 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1980 | Dodge | B200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1980 | Dodge | B300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1980 | Dodge | D150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1980 | Dodge | D200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1980 | Dodge | D300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1980 | Dodge | W150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1980 | Dodge | W200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1980 | Dodge | W300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | B100 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | B200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | B300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | D100 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | D150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | D200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | D300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | W150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | W200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Dodge | W300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1979 | Ford | F-250 | N/A | — |
| 1978 | Dodge | B100 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | B200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | B300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | D100 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | D150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | D200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | D300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | Ramcharger | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | W150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | W200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Dodge | W300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1978 | Ford | F-250 | N/A | — |
| 1978 | Ford | F-350 | N/A | — |
| 1977 | Dodge | B100 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1977 | Dodge | B200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1977 | Dodge | B300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1977 | Dodge | D150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1977 | Dodge | W150 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1977 | Ford | F-250 | N/A | — |
| 1977 | Ford | F-350 | N/A | — |
| 1976 | Dodge | B100 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1976 | Dodge | B200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1976 | Dodge | B300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1976 | Ford | F-250 | N/A | — |
| 1976 | Ford | F-350 | N/A | — |
| 1975 | Dodge | B100 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1975 | Dodge | B200 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1975 | Dodge | B300 | N/A | Fits multiple steering gear models with sector shaft seal. |
| 1974 | Dodge | Ramcharger | N/A | Compatible with steering gear sector shaft seal for vehicles with manual steering. |
| 1972 | Ford | F-100 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1972 | Ford | F-250 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1972 | Ford | F-350 | N/A | — |
| 1971 | Ford | F-100 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1971 | Ford | F-250 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1971 | Ford | F-350 | N/A | — |
| 1970 | Ford | F-100 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1970 | Ford | F-250 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1970 | Ford | F-350 | N/A | — |
| 1969 | Ford | F-100 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1969 | Ford | F-250 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1969 | Ford | F-350 | N/A | — |
| 1968 | Ford | F-100 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1968 | Ford | F-250 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1968 | Ford | F-350 | N/A | — |
| 1967 | Ford | F-100 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1967 | Ford | F-250 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1967 | Ford | F-350 | N/A | — |
| 1966 | Ford | F-100 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1966 | Ford | F-250 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1966 | Ford | F-350 | N/A | — |
| 1965 | Ford | F-100 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1965 | Ford | F-250 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1965 | Ford | F-350 | N/A | — |
| 1964 | Ford | F-100 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1964 | Ford | F-250 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1964 | Ford | F-350 | N/A | Ensure proper fitment for vehicles with Manual Transmission. |
| 1963 | Ford | F-100 | N/A | From Chassis # 38001; with Manual Steering |
| 1963 | Ford | F-250 | N/A | From Chassis # 38001; with Manual Steering |
| 1963 | Ford | F-350 | N/A | From Chassis # 38001; with Manual Steering |
| No rows match your filter. | ||||
Directly replaces or cross-references 48 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 13537Continental — 66974Dorman - HELP — 47007Dorman - HELP — 49510Four Seasons — 65546Four Seasons — 65970Four Seasons — 66446National — 323138Wix — 461711K15822H39157A-03207710A623910WA-0109424C50480142K1364SZ140704-72651201K154062942343543A64446654460066974151890703591831551222614936334165664690070428708137148AF1934RAM2446TAT15561ATY6563BC1TT3591FC3939D2HZ3591DK1582K32077PR1428PR3795S110T1148V14661XAG18811