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National 350414 Manual Transmission Input Shaft Seal
| Brand | National 350414 |
|---|---|
| Housing Bore (Inch) | 1.437 |
| Housing Bore (MM) | 36.500 |
| Inside Diameter | 1.000 |
| Inside Diameter | 25.400 |
| Material | Nitrile |
| Outside Diameter | 1.445 |
| Outside Diameter | 36.700 |
| Outside Diameter (Inch) | 1.445 |
| Outside Diameter (mm) | 36.700 |
| Part Description | Oil Seal |
| Sealing Material | Nitrile |
| Series | 350000 |
| Shaft (Inch) | 1.000 |
| Shaft (MM) | 25.400 |
| Thickness | 0.250 |
| Thickness | 6.350 |
| Type | 35 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.250 |
| Width (mm) | 6.350 |
| Fits | International and Studebaker |
Nitrile seal. Provides dependable sealing performance in a manual transmission input shaft seal.
Oil seal. Helps keep lubricant contained where the shaft passes through the housing.
Premium sealing solutions. Backed by National’s long-standing focus on sealing products.
Cross-references Anchor 9835, Anchor 9837 and Anchor 9838 for the same application. See all 33.
Manual Transmission Input Shaft Seal for OE-Style Repair
The National 350414 manual transmission input shaft seal is built for sealing the transmission input shaft where it enters the housing. It uses nitrile sealing material and a compact 35-series design to help maintain a proper oil seal in manual transmission service. This part number 350414 is a practical choice for transmission leak repair on vehicles that use a 1.000-inch shaft and 1.437-inch housing bore.
Key Features
- Manual transmission input shaft seal for transmission sealing applications
- Nitrile sealing material for oil resistance in drivetrain service
- Inside diameter: 1.000 in. / 25.400 mm
- Outside diameter: 1.445 in. / 36.700 mm
- Width: 0.250 in. / 6.350 mm
- Housing bore: 1.437 in. / 36.500 mm
- National 350414, Series 350000, Type 35
Detailed Description
National 350414 is an oil seal for manual transmission input shaft service, engineered around standard inch dimensions for a precise housing and shaft interface. The nitrile sealing material is suited to transmission oil exposure, while the 1.445-inch outside diameter and 0.250-inch width support a compact fit in the transmission case. National has supplied sealing products for decades and continues to apply current design practices to drivetrain sealing components. If you are searching for a manual transmission input shaft seal for OE-style repair, National 350414 is a direct service part to compare against the original seal specification. This part cross-references FEL-PRO 60242 and Dorman - First Stop 46347 for the same application.
What It Helps Address
- Transmission fluid seepage at the input shaft area
- Oil leakage from a worn or hardened shaft seal
- Contamination around the bellhousing from seal failure
- Loss of sealing performance caused by age and heat cycling
- Service replacement needs during manual transmission repair
Installation Notes and Tips
Verify shaft diameter, housing bore, and seal width before installation. Clean the bore and shaft surface thoroughly, and inspect for scoring or wear that could affect sealing. Install the seal squarely to avoid distortion of the nitrile lip and confirm the transmission case surface is free of debris before assembly. For vehicle-specific ordering, confirm the application against your manual transmission service information for the exact make and model.
Quality Assurance
National is known for sealing solutions used in drivetrain and transmission service, with product development focused on current vehicle requirements. Part number 350414 is manufactured to support consistent sealing performance in manual transmission applications.
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|---|---|---|---|---|
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