HomeTransmission > Gaskets and Sealing SystemsNational 471344 Manual Transmission Output Shaft Seal
Part #: 471344

National 471344 Manual Transmission Output Shaft Seal

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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: American Motors, Studebaker, Packard, Hudson, Nash, Kaiser, and Frazer, Ambassador, American, Marlin, Rebel, Commander, Cruiser, Daytona, Wagonaire, Challenger, Gran, Hawk, Lark, Taxi, Avanti, Silver Hawk, Packard, Golden Hawk, President, Clipper, Hornet, Hornet Special, Ambassador Custom, Ambassador Special, Ambassador Super, E10, E11, E13, E14, E15, E16, E17, E28, E38, E5, Flight Hawk, Sky Hawk, Transtar, Manhattan, Darrin, Special, Nash-Healey, 3R10, 3R11, 3R16, 3R17, 3R28, 3R38, 3R5, 3R6, Champion, Carolina, Deluxe, Dragon, 2R10, 2R5, Virginian, Frazer, Traveler, Vagabond, 2R11, 2R16, 2R16A, 2R17, 2R17A, 2R6, Custom, M16, M17, and M5
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Overview of National 471344 Manual Transmission Output Shaft Seal

The National 471344 manual transmission output shaft seal is engineered to provide reliable sealing performance for manual transmissions. Constructed from durable nitrile material, this oil seal is designed to maintain transmission fluid integrity and prevent leaks in compatible vehicle models.

  • Material: High-quality nitrile for resistance to oil and wear
  • Inside Diameter: 1.500 inches (38.100 mm)
  • Outside Diameter: 2.445 inches (62.100 mm)
  • Thickness/Width: 0.375 inches (9.530 mm)
  • Housing Bore Diameter: 2.441 inches (62.000 mm)
  • Redicoat finish for enhanced durability
  • Series: 470000, Type: 47
  • Zero duplication part ensuring unique fitment

Detailed Product Description

The National 471344 output shaft seal is specifically designed for manual transmissions requiring a 1.5-inch shaft diameter and a housing bore close to 2.44 inches. Made from nitrile, this seal offers excellent resistance to petroleum-based fluids and maintains flexibility under varying temperatures. The Redicoat finish adds an extra layer of protection against corrosion and wear, extending the service life of the seal. With precise dimensions—inside diameter of 1.500 inches, outside diameter of 2.445 inches, and thickness of 0.375 inches—this seal ensures a tight fit to prevent fluid leakage and contamination.

Common Applications and Issues Addressed

  • Prevents manual transmission fluid leaks around the output shaft
  • Reduces risk of contamination entering the transmission system
  • Helps maintain proper lubrication for transmission components
  • Addresses wear-related seal failures in older or high-mileage vehicles
  • Compatible with manual transmissions requiring a 1.5-inch shaft seal

Installation Notes and Tips

  • Ensure the transmission output shaft and housing bore are clean and free of debris before installation
  • Use appropriate tools to press the seal evenly into the housing bore without distortion
  • Verify the seal orientation matches the original part to maintain proper sealing function
  • Inspect the shaft for wear or damage that could compromise the new seal
  • Consult vehicle-specific service manuals for torque specifications and installation procedures

Quality Assurance and Warranty

National manufactures the 471344 output shaft seal to meet industry standards for durability and performance. The use of nitrile material and Redicoat finish ensures resistance to oil degradation and environmental factors. This part is a zero duplication item, guaranteeing unique fitment and compatibility. While specific warranty details may vary, National typically offers coverage against manufacturing defects to support professional repair and maintenance needs.

BrandNational
Part Number471344
FootnoteZero Duplication Part
Housing Bore (Inch)2.441
Housing Bore (MM)62.000
Inside Diameter1.500
Inside Diameter38.100
MaterialNitrile
Outside Diameter2.445
Outside Diameter62.100
Outside Diameter (Inch)2.445
Outside Diameter (mm)62.100
Part DescriptionOil Seal
RedicoatYes
Series470000
Shaft (Inch)1.500
Shaft (MM)38.100
Thickness0.375
Thickness9.530
Type47
Unit of DimensionInch
Width (Inch)0.375
Width (mm)9.530

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

0704-76820704-81201044701126221234899A142308150921509315505561L47772483742613128293120293472989531054593113831471344496124971663304680954753463-1831247M1832000M1832247M19037591917015001AH583RAL1794NSK4413DP110SKW140799SM7101T1347T1348T1349T1350T260024T961106T96110JT96110L

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.