National 722109 Axle Spindle Seal - Front Inner or Front Outer

Axle Spindle Seal for Front Inner Applications

The National 722109 axle spindle seal is an oil seal built for front inner axle locations where a precise seal around the shaft and housing bore is critical. With nitrile construction and OE-style dimensions, it supports reliable sealing in a wide range of Jeep, Ford, Dodge, Chevrolet, and GMC front axle applications.

National has supplied sealing solutions for more than 75 years, and the 722109 reflects that focus with a design sized for specific spindle and housing measurements. This part number is commonly selected for Jeep Wrangler, Cherokee, and CJ-series front axle service, as well as Ford F-150, F-250, and Bronco front inner axle applications.

Key Features

• Part number: National 722109
• Axle spindle seal / oil seal for front inner and front outer positions
• Nitrile sealing material for durable oil control
• Housing bore: 2.675 in. / 67.950 mm
• Outside diameter: 2.733 in. / 69.420 mm
• Shaft diameter: 2.250 in. / 57.150 mm
• Width: 0.539 in. / 13.690 mm
• Series: 722000, Type: VRS1
• Cross-reference: Gates 22311

Detailed Description

National 722109 is an axle spindle oil seal engineered around specific dimensional requirements, including a 2.250-inch shaft, 2.675-inch housing bore, and 0.539-inch width. Those measurements matter in front axle service because the seal must maintain contact at the spindle area while matching the housing and shaft geometry used in the application.

This seal is listed for a broad range of vehicles, including 1974-2006 Jeep CJ5, CJ7, Cherokee, Comanche, Grand Cherokee, Grand Wagoneer, J10, J20, Scrambler, Wagoneer, TJ, Wrangler, and 1973-1998 Ford Bronco, F-100, F-150, F-250, F-350, Explorer, Ranger, plus Dodge W100, W150, W200, W250, Ramcharger, and Chevrolet/GMC K-series and Suburban models with the specified axle and ring gear combinations. For buyers searching for a Jeep Wrangler front inner axle spindle seal or a Ford F-250 front inner seal, this part number is a direct match to the listed configurations.

This part cross-references Gates 22311 for the same application.

What It Helps Address

• Gear oil seepage at the front axle spindle area
• Contamination entering the axle assembly through a worn seal
• Loss of sealing performance from age, heat, or wear
• Service issues on front inner axle seal replacement jobs
• Fitment problems when the original seal dimensions no longer hold

Installation Notes and Tips

Verify the axle type, ring gear size, and position before ordering. This seal is listed for front inner and front outer applications depending on vehicle and axle configuration, including Spicer 30-AF, Spicer 44, Spicer 44-1F, Spicer 44-8F, Spicer 44-9F, Spicer 44-FBJ, and related setups shown in the fitment data.

Inspect the spindle, housing bore, and shaft surface for scoring or corrosion before installation. Clean the sealing surfaces thoroughly and confirm the dimensions match the listed specifications: 2.675-inch housing bore, 2.733-inch outside diameter, 2.250-inch shaft, and 0.539-inch width.

Quality Assurance

National has built its sealing product line over more than 75 years, with a focus on sealing solutions for modern and legacy vehicles alike. The 722109 is part of the National 722000 series and is built to the stated dimensional and material specifications for axle spindle sealing service.

• Fits 1997-2006 Jeep TJ, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1997-2006 Jeep Wrangler, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1987-1995 Jeep Wrangler, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1984-2001 Jeep Cherokee, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1998 Ford F-250, front inner, with Spicer 44 axle(s), HD axle(s), 8.5 in. ring gear, independent front suspension
• Fits 1980-1996 Ford F-250, front inner, with Spicer 44 axle(s), HD axle(s), 8.5 in. ring gear, independent front suspension
• Fits 1993-1998 Jeep Grand Cherokee, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1997 Ford F-250 HD, front inner, with Spicer 44 axle(s) and 8.5 in. ring gear, independent front suspension
• Fits 1975-1993 Dodge Ramcharger, front inner, with Spicer 44-FBJ axle(s) and 8.5 inch ring gear
• Fits 1977-1993 Dodge W150, front inner, with Spicer 44-FBJ axle(s) and 8.5 inch ring gear
• Fits 1981-1993 Dodge W250, front inner, with Spicer 44-FBJ axle(s) and 8.5 inch ring gear
• Fits 1993 Jeep Grand Wagoneer, front inner, with Spicer 44-1F axle(s) and 8.5 in. ring gear
• Fits 1984-1991 Jeep Grand Wagoneer, front inner, with Spicer 44-1F axle(s) and 8.5 in. ring gear
• Fits 1980-1992 Ford Bronco, front inner, with Spicer 44 axle(s), 8.5 in. ring gear, independent front suspension
• Fits 1991-1992 Ford Explorer, front inner, with Spicer 35 axle(s), 7.59 in. ring gear, independent front suspension
• Fits 1980-1992 Ford F-150, front inner, with Spicer 44 axle(s), 8.5 in. ring gear, independent front suspension
• Fits 1990-1992 Ford Ranger, front inner, with Spicer 35 axle(s), 7.59 in. ring gear, independent front suspension
• Fits 1986-1992 Jeep Comanche, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1991-1992 Mazda Navajo, front inner, with Spicer 35 axle(s), 7.59 in. ring gear, independent front suspension
• Fits 1987-1991 Chevrolet Blazer, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1989-1991 Chevrolet V1500 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1989-1991 Chevrolet V2500 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1977-1991 GMC Jimmy, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1987-1991 GMC V1500 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1987-1991 GMC V2500 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1984-1990 Jeep Wagoneer, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1984-1989 Dodge W100, front inner, with Spicer 44-FBJ axle(s) and 8.5 inch ring gear
• Fits 1975-1977 Dodge W100, front inner, with Spicer 44-FBJ axle(s) and 8.5 inch ring gear
• Fits 1987-1988 Chevrolet V10 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1987-1988 Chevrolet V20 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1974-1988 Jeep J10, front inner, with Spicer 44-1F axle(s) and 8.5 in. ring gear
• Fits 1974-1988 Jeep J20, front inner, with Spicer 44-1F axle(s) and 8.5 in. ring gear
• Fits 1987 Chevrolet V10, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1987 Chevrolet V20, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1987 GMC V1500, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1987 GMC V2500, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1977-1986 Chevrolet K10, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1977-1986 Chevrolet K10 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1977-1986 Chevrolet K20, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1977-1986 Chevrolet K20 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1977-1986 Chevrolet K5 Blazer, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1979-1986 GMC K1500, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1979-1986 GMC K1500 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1979-1986 GMC K2500, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1979-1986 GMC K2500 Suburban, front inner, with GMC axle(s) and 8.5 in. ring gear
• Fits 1976-1986 Jeep CJ7, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1981-1985 Jeep Scrambler, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1974-1984 Jeep Cherokee, front inner, with Spicer 44-1F axle(s) and 8.5 in. ring gear
• Fits 1980-1983 Ford F-100, front inner, with Spicer 44 axle(s), 8.5 in. ring gear, independent front suspension
• Fits 1974-1983 Jeep CJ5, front inner, with Spicer 30-AF axle(s) and 7.125 in. ring gear
• Fits 1974-1983 Jeep Wagoneer, front inner, with Spicer 44-1F axle(s) and 8.5 in. ring gear
• Fits 1974-1983 Jeep Wagoneer, front inner, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1977-1982 Chevrolet K10, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1977-1982 Chevrolet K10 Suburban, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1977-1982 Chevrolet K5 Blazer, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1977-1982 GMC Jimmy, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1979-1982 GMC K1500, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1979-1982 GMC K1500 Suburban, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1979-1982 GMC K2500, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1979-1982 GMC K2500 Suburban, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1975-1980 Dodge W200, front inner, with Spicer 44-FBJ axle(s) and 8.5 inch ring gear
• Fits 1973-1979 Ford Bronco, front inner, with Spicer 44-1F axle(s) and 8.5 in. ring gear
• Fits 1978-1979 Ford F-100, front inner, with Spicer 44-9F axle(s) and 8.5 inch ring gear
• Fits 1978-1979 Ford F-150, front inner, with Spicer 44-9F axle(s) and 8.5 inch ring gear
• Fits 1977-1979 Ford F-250, front inner, with Spicer 44-9F axle(s) and 8.5 inch ring gear
• Fits 1977-1978 Chevrolet K20, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1977-1978 Chevrolet K20 Suburban, front outer, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1977-1978 Ford F-350, front inner, with Spicer 44-9F axle(s) and 8.5 inch ring gear
• Fits 1973-1977 Ford F-100, front inner, with Spicer 44-7F axle(s) and 8.5 in. ring gear
• Fits 1975-1977 Ford F-150, front inner, with Spicer 44-7F axle(s) and 8.5 in. ring gear
• Fits 1976-1977 Ford F-250, front inner, with axle spindle seal for Spicer 44-6CF axles and 8.5 inch ring gear
• Fits 1976-1977 Ford F-350, front inner, with axle spindle seal for Spicer 44-6CF axles and 8.5 inch ring gear
• Fits 1974-1977 Jeep Cherokee, front inner, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1974-1977 Jeep J10, front inner, with Spicer 44-8F axle(s) and 8.5 in. ring gear
• Fits 1974-1977 Jeep J20, front inner, with Spicer 44-1FHD axle(s) and 8.5 in. ring gear