SKF 8178 Steering Gear Worm Shaft Seal

SKF 8178 Steering Gear Worm Shaft Seal

SKF 8178 is a steering gear worm shaft seal built for Ford and Lincoln steering gear applications that need reliable sealing at the shaft interface. With a LongLife sealing surface type and precise dimensions, this seal helps maintain steering gear lubrication while keeping road contaminants out.

Compatible with a wide range of Ford F-150, F-250, Bronco, Ranger, and Econoline steering gear applications, SKF 8178 is a direct-fit sealing solution for service work on older steering systems. This part cross-references Ford OE part number D5AZ3D526A for the same application.

Key Features

• Steering gear worm shaft seal for service and repair applications
• LongLife sealing surface type for durable sealing performance
• Precision dimensions: 0.250 in. width, 1.628 in. outside diameter, 0.813 in. shaft diameter
• Designed for steering gear systems that require a worm shaft seal
• SKF engineering and manufacturing focused on sealing integrity and long service life
• Part number 8178 for easy identification and ordering

Detailed Description

SKF has a long history in seal design, and the 8178 steering gear worm shaft seal reflects that experience with application-specific construction and premium materials. The seal is engineered to match the demands of steering gear environments, where fluid retention and contamination control are critical to steering system performance. For technicians servicing Ford and Lincoln vehicles, SKF 8178 provides a focused repair part for steering gear worm shaft sealing needs.

Fits 1999 Ford F-350 Super Duty, N/A; Fits 1988-1997 Ford F-350, N/A; Fits 1993-1996 Lincoln Mark VIII, N/A; Fits 1975-1996 Mercury Grand Marquis, N/A; Fits 1994 Ford Bronco, N/A, Thru 5/94; Fits 1992-1994 Ford Crown Victoria, N/A, w/o Rack & Pinion; Fits 1994 Ford E-150 Econoline, N/A, Ford Gear; To 4/94; Fits 1994 Ford E-150 Econoline Club Wagon, N/A, Ford Gear; To 4/94; Fits 1994 Ford E-250 Econoline, N/A, Ford Gear; To 4/94; Fits 1994 Ford E-350 Econoline, N/A, Ford Gear; To 4/94; Fits 1994 Ford E-350 Econoline Club Wagon, N/A, Ford Gear; To 4/94; Fits 1994 Ford F-150, N/A, Thru 5/94; Fits 1994 Ford F-250, N/A, Thru 5/94; Fits 1986-1993 Ford Aerostar, N/A; Fits 1978-1993 Ford Bronco, N/A; Fits 1983-1993 Ford E-150 Econoline, N/A, Ford Gear; Fits 1983-1993 Ford E-150 Econoline Club Wagon, N/A, Ford Gear; Fits 1983-1993 Ford E-250 Econoline, N/A, Ford Gear; Fits 1983-1993 Ford E-350 Econoline, N/A, Ford Gear; Fits 1983-1993 Ford E-350 Econoline Club Wagon, N/A, Ford Gear; Fits 1991-1993 Ford Explorer, N/A; Fits 1975-1993 Ford F-150, N/A; Fits 1993 Ford F-250, N/A; Fits 1983-1993 Ford Ranger, N/A; Fits 1968-1992 Ford F-250, N/A, Ford Gear; Fits 1984-1992 Lincoln Mark VII, N/A; Fits 1983-1991 Ford E-250 Econoline Club Wagon, N/A, Ford Gear; Fits 1987-1991 Ford LTD Crown Victoria, N/A, w/o Rack & Pinion; Fits 1987-1991 Mercury Colony Park, N/A; Fits 1984-1990 Ford Bronco II, N/A; Fits 1975-1986 Ford LTD, N/A, w/o Rack & Pinion; Fits 1983 Ford E-100 Econoline, N/A, Ford Gear; Fits 1983 Ford E-100 Econoline Club Wagon, N/A, Ford Gear; Fits 1968-1983 Ford F-100, N/A; Fits 1980-1983 Lincoln Mark VI, N/A; Fits 1982 Ford E-100 Econoline, N/A, Ford Gear; From 2/82; Fits 1982 Ford E-100 Econoline Club Wagon, N/A, Ford Gear; From 2/82; Fits 1982 Ford E-150 Econoline, N/A, Ford Gear; From 2/82; Fits 1982 Ford E-150 Econoline Club Wagon, N/A, Ford Gear; From 2/82; Fits 1982 Ford E-250 Econoline, N/A, Ford Gear; From 2/82; Fits 1982 Ford E-250 Econoline Club Wagon, N/A, Ford Gear; From 2/82; Fits 1982 Ford E-350 Econoline, N/A, Ford Gear; From 2/82; Fits 1982 Ford E-350 Econoline Club Wagon, N/A, Ford Gear; From 2/82; Fits 1975-1982 Mercury Marquis, N/A; Fits 1980 Lincoln Continental, N/A; Fits 1975-1979 Ford Thunderbird, N/A, Ford Pump; Fits 1975-1979 Mercury Cougar, N/A, Ford Gear; Fits 1975-1976 Mercury Montego, N/A, Ford Gear.

Common Repair Uses

• Steering gear oil seepage at the worm shaft
• Contamination entering the steering gear housing
• Loss of steering gear fluid retention during service
• Wear-related sealing failure in older Ford steering systems
• Restoration or maintenance of Ford gear-type steering assemblies

Installation Notes and Tips

Verify shaft diameter, outside diameter, and seal width before installation to confirm the seal matches the steering gear being serviced. Clean the sealing bore and shaft surface thoroughly, and inspect the worm shaft for scoring or wear that could affect sealing performance. Use the vehicle application notes, including Ford Gear and no rack-and-pinion configurations, to confirm the correct steering system before assembly.

Quality Assurance

SKF designs and manufactures seals to specific application requirements using premium materials and controlled production standards. The 8178 is built for steering gear sealing performance in demanding automotive environments, with a focus on keeping lubricants in and contaminants out.