InMotion WB514003 Wheel Bearing - Rear

Wheel Bearing for Rear Axle Service

The InMotion WB514003 is a sealed rear wheel bearing built for a wide range of classic Ford, Lincoln, Mercury, Oldsmobile, Pontiac, and Cadillac applications. With a ball bearing design, round profile, and durable sealed construction, it supports smooth rotation, reduced friction, and stable rear axle operation in demanding automotive use.

Compatible With rear applications on vehicles such as the Ford F-100, Ford Bronco, Lincoln Continental, and Mercury Cougar, this bearing is specified for multiple axle and ring gear configurations. The WB514003 is a practical replacement choice when you need consistent bearing performance and a direct-fit service part for older driveline assemblies.

Key Features

• Part number: WB514003
• Wheel bearing, rear position
• Ball bearing type with one-row construction
• Sealed bearing design for added protection
• Inside diameter: 1.531 in. (38.9 mm)
• Outside diameter: 3.15 in. (80 mm)
• Width: 1.083 in.
• Round bearing profile
• Built for rotational stability and reduced friction

Detailed Description

InMotion WB514003 is engineered as a sealed rear wheel bearing for service in driveline and axle assemblies where dependable rotation matters. Its 1-row ball bearing design and sealed construction help maintain smooth operation while limiting exposure to contaminants. The bearing dimensions measure 1.531 inches inside diameter, 3.15 inches outside diameter, and 1.083 inches wide, making it a precise service component for the listed rear axle applications.

This part cross-references no listed interchange numbers in the provided data. For fitment-focused searches, WB514003 is commonly referenced for rear wheel bearing replacement on Ford F-100, Ford Bronco, and Lincoln Continental applications, along with several Mercury, Oldsmobile, Pontiac, and Cadillac models.

What It Helps Solve

• Rear wheel bearing noise or rough rotation
• Excess friction in the axle end or hub area
• Loose or unstable rear wheel support
• Wear-related service issues in older driveline assemblies
• Replacement needs for sealed rear bearing applications

Installation Notes and Tips

Confirm the axle, ring gear, spline, and bearing dimensions before installation. This bearing is listed for rear use only and appears across multiple configurations, including 9-inch ring gear, 3,300 lb axle, 3,600 lb axle, heavy-duty axle, and 31-spline applications depending on vehicle. Match the bearing dimensions and vehicle notes exactly to the application being serviced. Professional installation is recommended for axle and hub service.

Quality Assurance

InMotion manufactures this bearing from high-quality materials for consistent performance in automotive and industrial environments. The sealed design and single-row ball construction support durability and reliable operation across the listed rear axle applications.

Compatible Vehicles

• Fits 1969-1979 Ford E-100 Econoline, rear, with 3,300lb Axle(s)
• Fits 1975-1979 Ford E-100 Econoline Club Wagon, rear, with 9in Ring Gear
• Fits 1975-1979 Ford E-150 Econoline, rear, with 3,300lb Axle(s)
• Fits 1975-1979 Ford E-150 Econoline Club Wagon, rear, with 9in Ring Gear
• Fits 1970-1979 Ford F-100, rear, with 9in Ring Gear
• Fits 1964-1965 Ford F-100, rear, with 9in Ring Gear
• Fits 1975-1979 Ford F-150, rear, with 9in Ring Gear
• Fits 1978-1979 Lincoln Continental, rear
• Fits 1970-1973 Lincoln Continental, rear
• Fits 1958-1961 Lincoln Continental, rear
• Fits 1977-1979 Lincoln Versailles, rear, with 31 Splines
• Fits 1974-1979 Mercury Cougar, rear, with 9in Ring Gear
• Fits 1975-1979 Mercury Monarch, rear, with 9in Ring Gear
• Fits 1966-1977 Ford Bronco, rear, with 9in Ring Gear
• Fits 1971-1975 Ford LTD, rear, with 9in Ring Gear
• Fits 1969 Ford LTD, rear, with 9in Ring Gear
• Fits 1967 Ford LTD, rear, with 9in Ring Gear
• Fits 1965 Ford LTD, rear, with 9in Ring Gear
• Fits 1974-1975 Mercury Montego, rear, with 9in Ring Gear
• Fits 1973 Ford Thunderbird, rear
• Fits 1957-1971 Ford Thunderbird, rear
• Fits 1973 Mercury Montego, rear, with 7.75in Ring Gear
• Fits 1972 Mercury Colony Park, rear, with 9.375in Ring Gear
• Fits 1972 Mercury Marquis, rear, with 9in Ring Gear
• Fits 1971 Mercury Colony Park, rear, with 9in Ring Gear
• Fits 1971 Mercury Marquis, rear, with 9.375in Ring Gear
• Fits 1970 Ford LTD, rear, with 8.75in Ring Gear
• Fits 1968 Ford LTD, rear, with 8.75in Ring Gear
• Fits 1966-1970 Mercury Colony Park, rear
• Fits 1957-1960 Mercury Colony Park, rear
• Fits 1969-1970 Mercury Marauder, rear
• Fits 1966 Mercury Marauder, rear
• Fits 1967-1970 Mercury Marquis, rear
• Fits 1966-1969 Ford F-100, rear, with 3,600lb Axle(s)
• Fits 1966-1967 Mercury Villager, rear
• Fits 1950-1967 Oldsmobile 98, rear
• Fits 1965-1967 Oldsmobile Delta 88, rear
• Fits 1966 Ford LTD, rear, with 9.375in Ring Gear
• Fits 1961-1966 Oldsmobile Starfire, rear
• Fits 1954-1957 Oldsmobile Starfire, rear
• Fits 1961-1965 Mercury Colony Park, rear, with Heavy Duty Axle
• Fits 1963-1965 Mercury Marauder, rear, with Heavy Duty Axle
• Fits 1965 Mercury Villager, rear, with Heavy Duty Axle
• Fits 1959-1964 Pontiac Bonneville, rear
• Fits 1959-1964 Pontiac Catalina, rear
• Fits 1950-1955 Pontiac Catalina, rear
• Fits 1962-1964 Pontiac Grand Prix, rear
• Fits 1953-1963 Ford F-100, rear
• Fits 1957-1959 Ford F-350, rear
• Fits 1953-1955 Ford F-350, rear
• Fits 1954-1957 Oldsmobile 88, rear
• Fits 1950 Oldsmobile 88, rear
• Fits 1953-1956 Cadillac DeVille, rear
• Fits 1953-1956 Cadillac Eldorado, rear
• Fits 1953-1955 Ford F-250, rear