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National 471504 Engine Crankshaft Seal - FrontOE Quality 60-Day Returns
Part #: 471504

National 471504 Engine Crankshaft Seal - Front

Front
15 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Jeep, AM General, Kaiser, Henry J, Allstate, Willys, and Frazer, CJ5, Commando, DJ5, CJ6, Jeepster, Dispatcher, Universal Truck, CJ5A, CJ6A, DJ6, Universal, CJ3, DJ3, F-134, FC150, FC170, FC170HD, Truck, FJ3, FJ3A, Utility Wagon, 6-226, F4-134, Utility, FA-134, Willys, Manhattan, Corsair, Special, A-230, Carolina, Deluxe, Dragon, Station Wagon, Vagabond, Virginian, Frazer, Standard, Traveler, and Custom
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Not what you need? See all Engine Crankshaft Seal options

Overview of National 471504 Engine Crankshaft Seal

The National 471504 engine crankshaft seal is designed specifically for Jeep CJ5 models, providing reliable sealing performance. Manufactured from durable nitrile material, this oil seal ensures effective protection against oil leaks and contaminants.

  • Inside diameter: 1.750 inches (44.450 mm)
  • Outside diameter: 2.441 inches (62.000 mm)
  • Thickness/width: 0.312 inches (7.920 mm)
  • Housing bore diameter: 2.437 inches (61.900 mm)
  • Material: Nitrile with Redicoat coating for enhanced durability
  • Part number: 471504, Series 470000
  • Zero duplication part for precise fitment

Detailed Product Description

This National 471504 engine crankshaft seal is engineered to maintain a tight seal around the crankshaft of Jeep CJ5 vehicles. The nitrile construction offers resistance to oil, heat, and wear, while the Redicoat treatment improves the seal’s longevity and performance under demanding engine conditions. With an inside diameter of 1.750 inches and an outside diameter of 2.441 inches, this seal fits precisely within the housing bore of 2.437 inches, ensuring minimal leakage and optimal engine operation.

Applications and Problem Solving

This crankshaft seal is used to prevent oil leaks and contamination in the engine crankshaft area. It addresses common issues such as:

  • Oil leakage from the crankshaft seal area
  • Contaminant ingress causing premature engine wear
  • Seal degradation due to heat and oil exposure
  • Vibration-related seal failure
  • Maintaining engine oil pressure and cleanliness

Installation Notes and Tips

  • Ensure the crankshaft and housing bore are clean and free of debris before installation
  • Use appropriate tools to avoid damaging the seal during installation
  • Verify the seal orientation matches the engine specifications
  • Check for proper seating to prevent leaks
  • Consult Jeep CJ5 service manual for torque and installation procedures

Quality Assurance and Warranty

National 471504 crankshaft seals are manufactured to meet OEM specifications and undergo rigorous quality control to ensure durability and performance. The product is a zero duplication part, guaranteeing exact fitment for Jeep CJ5 models. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects.

BrandNational
Part Number471504
FootnoteZero Duplication Part
Housing Bore (Inch)2.437
Housing Bore (MM)61.900
Inside Diameter1.750
Inside Diameter44.450
MaterialNitrile
Outside Diameter2.441
Outside Diameter62.000
Outside Diameter (Inch)2.441
Outside Diameter (mm)62.000
Part DescriptionOil Seal
RedicoatYes
Series470000
Shaft (Inch)1.750
Shaft (MM)44.450
Thickness0.312
Thickness7.920
Type47
Unit of DimensionInch
Width (Inch)0.312
Width (mm)7.920

This part fits 15 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1973JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1972JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1971JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1970JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1969JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1968JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1967JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1966JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1965JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1964JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1963JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1962JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1961JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1960JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.
1959JeepCJ52.2LL4FrontEngine Crankshaft Seal fits various vehicles with nitrile material.

* 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:

010032AB0258511BF0704-1215172851942621H22652084942S23763067113092093B38884268774701247150447211495756951378004885831468M1A-1805-R-304A1805R-304A4179A7146AMX37590AMX375901DX23256DX28649EV4430NXA543SA5889SKN1800047XA23602

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