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National 51098 Wheel Seal - Rear, Rear Inner or Rear OuterOE Quality 60-Day Returns
Part #: 51098

National 51098 Wheel Seal - Rear, Rear Inner or Rear Outer

Rear
203 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Checker, Lincoln, Mercury, MG, Austin, Buick, Metropolitan, Morris, and Edsel, F-100, Marathon, Versailles, E-100 Econoline, E-100 Econoline Club Wagon, E-150 Econoline, E-150 Econoline Club Wagon, F-150, Granada, Ranchero, Continental, Mark V, Cougar, Monarch, Midget, LTD, Bronco, Custom 500, Elite, Gran Torino, Torino, Montego, Country Sedan, Country Squire, E-200 Econoline, Galaxie 500, Ranch Wagon, Monterey, P-100, Thunderbird, Mark IV, Custom, G-100, Colony Park, Marquis, America, Mark III, Electra, Riviera, Wildcat, Marauder, Deluxe, Commuter, Montclair, Park Lane, Galaxie, Brougham, Villager, Voyager, MGB, Caliente, Cyclone, A60, Cambridge, Estate Wagon, LeSabre, 300, A30, A40, Series 1500, Magnette, MGA, Minor, Oxford, Fairlane, Meteor, Ranger, Victoria, Lincoln Series, Premier, Country Cruiser, A35, Corsair, Club, F-350, P-350, Capri, Medalist, ZB, Skyliner, Sunliner, Mark II, Turnpike Cruiser, Series B, ZA, F-250, Cosmopolitan, Lincoln, and 9EL Series
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National 51098 Wheel Seal Overview

The National 51098 wheel seal is engineered for reliable driveline sealing in select Buick, Ford, Lincoln, and Mercury vehicles. Designed with nitrile material and precise dimensions, this oil seal helps maintain axle integrity and prevent leaks in models like the Ford F-150 and Lincoln Continental.

  • Inside diameter: 1.500 inches (38.1 mm)
  • Outside diameter: 2.506 inches (63.65 mm)
  • Thickness/width: 0.437 inches (11.1 mm)
  • Sealing material: durable nitrile rubber
  • Redicoat finish for enhanced corrosion resistance
  • Compatible with housing bore of 2.502 inches (63.55 mm)
  • Part number: 51098

Detailed Product Description

The National 51098 wheel seal is a nitrile oil seal designed to fit shafts with a diameter of 1.500 inches and housings with a bore diameter of approximately 2.502 inches. Its 0.437-inch thickness ensures a secure fit and effective sealing against contaminants and fluid leaks. The Redicoat coating provides additional protection against corrosion, extending the service life of the seal in demanding driveline environments. This seal is part of National's 50000 series, known for consistent quality and durability in axle and driveline applications.

Compatible Vehicles and Applications

This wheel seal is compatible with a range of Buick, Ford, Lincoln, and Mercury models, including but not limited to:

  • Ford F-100, F-150, F-250, F-350 trucks
  • Ford Bronco and E-100/E-150 Econoline vans
  • Lincoln Continental, Town Car, and Mark series
  • Mercury Cougar, Marauder, and Villager
  • Buick LeSabre, Riviera, and Electra

Using the National 51098 wheel seal ensures proper sealing performance in these vehicles’ driveline and axle assemblies.

Common Issues Addressed by the National 51098 Wheel Seal

  • Prevents axle oil leaks that can cause driveline damage
  • Protects bearings and internal components from dirt and moisture
  • Reduces risk of premature wear due to contamination
  • Maintains proper lubrication within axle assemblies
  • Helps avoid costly repairs related to seal failure

Installation Notes and Tips

  • Ensure shaft and housing surfaces are clean and free of debris before installation
  • Use appropriate tools to avoid damaging the seal during installation
  • Verify correct orientation of the seal lip for optimal sealing
  • Check housing bore and shaft dimensions to confirm compatibility
  • Apply a light coating of lubricant on the seal lip to ease installation

Quality Assurance and Warranty

National manufactures the 51098 wheel seal to meet industry standards for durability and performance. The nitrile material and Redicoat finish contribute to long service life under typical operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against manufacturing defects, ensuring confidence in the part’s reliability.

BrandNational
Part Number51098
Housing Bore (Inch)2.502
Housing Bore (MM)63.550
Inside Diameter1.500
Inside Diameter38.100
MaterialNitrile
Outside Diameter2.506
Outside Diameter63.650
Outside Diameter (Inch)2.506
Outside Diameter (mm)63.650
Part DescriptionOil Seal
RedicoatYes
Sealing MaterialNitrile
Series50000
Shaft (Inch)1.500
Shaft (MM)38.100
Thickness0.437
Thickness11.100
Type48
Unit of DimensionInch
Width (Inch)0.437
Width (mm)11.100

This part fits 203 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1983FordF-100Rearwith 9 (in) Ring Gear; with 2,800 (lb) Axle(s)
1982FordF-100Rearwith 9 (in) Ring Gear; with 2,800 (lb) Axle(s)
1981FordF-100Rearwith 9 (in) Ring Gear; with 2,800 (lb) Axle(s)
1980FordF-100Rearwith 9 (in) Ring Gear; with 2,800 (lb) Axle(s)
1980LincolnVersaillesRear Inner
1979FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1979FordE-100 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1979FordE-150 EconolineRearwith 3,300 (lb) Axle(s)
1979FordE-150 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1979FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1979FordF-150Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1979LincolnContinentalRear
1979LincolnVersaillesRear Inner
1979LincolnVersaillesRearManual Transmission Output Shaft Seal for vehicles with 31 Splines.
1979MercuryCougarRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1979MercuryMonarchRearwith 9 (in) Ring Gear
1978FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1978FordE-100 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1978FordE-150 EconolineRearwith 3,300 (lb) Axle(s)
1978FordE-150 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1978FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1978FordF-150Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1978FordLTDRearwith 9 (in) Ring Gear
1978LincolnContinentalRear
1978LincolnVersaillesRear Inner
1978LincolnVersaillesRearManual Transmission Output Shaft Seal for vehicles with 31 Splines.
1978MercuryCougarRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1978MercuryMonarchRearwith 9 (in) Ring Gear
1977FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1977FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1977FordE-100 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1977FordE-150 EconolineRearwith 3,300 (lb) Axle(s)
1977FordE-150 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1977FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1977FordF-150Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1977FordLTDRearwith 9 (in) Ring Gear
1977LincolnVersaillesRear Inner
1977LincolnVersaillesRearManual Transmission Output Shaft Seal for vehicles with 31 Splines.
1977MercuryCougarRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1977MercuryMonarchRearwith 9 (in) Ring Gear
1976FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1976FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1976FordE-100 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1976FordE-150 EconolineRearwith 3,300 (lb) Axle(s)
1976FordE-150 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1976FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1976FordF-150Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1976FordLTDRearwith 9 (in) Ring Gear
1976MercuryCougarRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1976MercuryMonarchRearwith 9 (in) Ring Gear
1975FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1975FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1975FordE-100 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1975FordE-150 EconolineRearwith 3,300 (lb) Axle(s)
1975FordE-150 Econoline Club WagonRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1975FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1975FordF-150Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1975FordLTDRearExcept Heavy Duty Axle; with 9 (in) Ring Gear
1975MercuryCougarRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1975MercuryMonarchRearwith 9 (in) Ring Gear
1975MercuryMontegoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1974FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1974FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1974FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1974FordLTDRearExcept Heavy Duty Axle; with 9 (in) Ring Gear
1974MercuryCougarRearwith Drum Brakes; with 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1974MercuryMontegoRearwith 8 (in) Ring Gear
1974MercuryMontegoRearwith Drum Brakes; with 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1974MercuryMontegoRearwith 7.75 (in) Ring Gear
1973FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1973FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1973FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1973FordLTDRearwith 9 (in) Ring Gear
1973FordThunderbirdRear
1973LincolnContinentalRear
1973MercuryMontegoRearwith 8 (in) Ring Gear
1973MercuryMontegoRearwith Drum Brakes; with 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1973MercuryMontegoRearwith 7.75 (in) Ring Gear
1972FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1972FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1972FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1972FordLTDRearwith 9 (in) Ring Gear
1972LincolnContinentalRear
1972MercuryColony ParkRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1972MercuryColony ParkRearwith 9.375 (in) Ring Gear
1972MercuryMarquisRearwith 9.375 (in) Ring Gear
1972MercuryMarquisRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1971FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1971FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1971FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1971FordLTDRearwith 8.75 (in) Ring Gear
1971FordLTDRearwith 9 (in) Ring Gear
1971FordThunderbirdRear
1971LincolnContinentalRear
1971MercuryColony ParkRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1971MercuryColony ParkRearwith 9.375 (in) Ring Gear
1971MercuryMarquisRearwith 9.375 (in) Ring Gear
1971MercuryMarquisRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1970BuickRivieraRear
1970FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1970FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1970FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1970FordLTDRearwith 8.75 (in) Ring Gear
1970FordLTDRearwith 9.375 (in) Ring Gear
1970FordLTDRearwith 9 (in) Ring Gear
1970FordThunderbirdRear
1970LincolnContinentalRear
1970MercuryColony ParkRear
1970MercuryMarauderRear
1970MercuryMarquisRear
1969BuickRivieraRear
1969FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1969FordE-100 EconolineRearwith 3,300 (lb) Axle(s)
1969FordF-100Rearwith 9.375 (in) Ring Gear; with 3,600 (lb) Axle(s)
1969FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1969FordLTDRearwith 8.75 (in) Ring Gear
1969FordLTDRearwith 9.375 (in) Ring Gear
1969FordLTDRearwith 9 (in) Ring Gear
1969FordThunderbirdRear
1969MercuryColony ParkRear
1969MercuryMarauderRear
1969MercuryMarquisRear
1968BuickRivieraRear
1968FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1968FordF-100Rearwith 9.375 (in) Ring Gear; with 3,600 (lb) Axle(s)
1968FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1968FordLTDRearwith 8.75 (in) Ring Gear
1968FordLTDRearwith 9.375 (in) Ring Gear
1968FordLTDRearwith 9 (in) Ring Gear
1968FordThunderbirdRear
1968MercuryColony ParkRear
1968MercuryMarquisRear
1967FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1967FordF-100Rearwith 9.375 (in) Ring Gear; with 3,600 (lb) Axle(s)
1967FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1967FordLTDRearwith 9 (in) Ring Gear; with Heavy Duty Axle
1967FordLTDRearwith 9.375 (in) Ring Gear
1967FordThunderbirdRear
1967MercuryColony ParkRear
1967MercuryMarquisRear
1967MercuryVillager6.4LV8Rear
1966FordBroncoRearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1966FordF-100Rearwith 9.375 (in) Ring Gear; with 3,600 (lb) Axle(s)
1966FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1966FordLTDRearwith 9 (in) Ring Gear; with Heavy Duty Axle
1966FordLTDRearwith 9.375 (in) Ring Gear
1966FordThunderbirdRear
1966MercuryColony ParkRear
1966MercuryMarauderRear
1966MercuryVillager6.4LV8Rear
1965FordF-100Rearwith 9.375 (in) Ring Gear; with 3,600 (lb) Axle(s)
1965FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1965FordLTDRearwith 9 (in) Ring Gear; with Heavy Duty Axle
1965FordThunderbirdRear
1965MercuryColony ParkRearwith Heavy Duty Axle
1965MercuryMarauderRearwith Heavy Duty Axle
1965MercuryVillager7.0LV8Rearwith Heavy Duty Axle
1964BuickLeSabreRear
1964FordF-100Rearwith 9.375 (in) Ring Gear; with 3,600 (lb) Axle(s)
1964FordF-100Rearwith 9 (in) Ring Gear; with 3,300 (lb) Axle(s)
1964FordThunderbirdRear
1964MercuryColony ParkRearwith Heavy Duty Axle
1964MercuryMarauderRearwith Heavy Duty Axle
1963BuickLeSabreRear
1963FordF-100Rear
1963FordThunderbirdRear
1963MercuryColony ParkRearwith Heavy Duty Axle
1963MercuryMarauderRearwith Heavy Duty Axle
1962FordF-100Rear
1962FordThunderbirdRear
1962MercuryColony ParkRearwith Heavy Duty Axle
1961FordF-100Rear
1961FordThunderbirdRear
1961LincolnContinentalRear
1961MercuryColony ParkRearwith Heavy Duty Axle
1960FordF-100Rear
1960FordThunderbirdRear
1960LincolnContinentalRear
1960MercuryColony ParkRear
1959FordF-100Rear
1959FordF-350Rear
1959FordThunderbirdRear
1959LincolnContinentalRear
1959MercuryColony ParkRear
1958FordF-100Rear
1958FordF-350Rear
1958FordThunderbirdRear
1958LincolnContinentalRear
1958MercuryColony ParkRear
1957FordF-100Rear
1957FordF-350Rear
1957FordThunderbirdRear
1957MercuryColony ParkRear
1956FordF-100Rear
1955FordF-100Rear
1955FordF-250Rear
1955FordF-350Rear
1954FordF-100Rear
1954FordF-250Rear
1954FordF-350Rear
1953FordF-100Rear
1953FordF-250Rear
1953FordF-350Rear

* 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:

12305146135391813539191512015142211-350924695452620322262037728701291132291942987417.64001473834915049150SF495185042450524510986306064094AJ1177AAJ1177A1AJ1177A2AJ1177A3AJ1177A4B7A1177AB90668EXC1AA1177AC23584EXC7AW1177FC7AW1177JC7TW1177AC9AZ1177AD1AW1177CE0TW1177A2AE0TZ1177CGS1290P3509PR2914PR6007T1352T1355T1388XW19076XW24525

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