Timken 513013 Wheel Bearing and Hub Assembly - Front

Timken 513013 Wheel Bearing Hub Assembly

Timken 513013 is a front wheel bearing and hub assembly built for driven applications that need stable wheel support, low runout, and consistent ABS signal performance. It is a direct-fit option for vehicles such as the Chevrolet S10, GMC Sonoma, and Chevrolet S10 Blazer.

Key Features

• OE-developed testing is used to control design, materials, and manufacturing process
• Low runout helps reduce noise and vibration while supporting braking consistency
• Premium seals use reinforced construction and contamination control features to improve sealing life
• Precision-profile bearings with uniform internal geometry support load capacity and bearing life
• ABS sensor is 100% tested to monitor wheel speed for anti-lock braking systems
• Driven front hub assembly with 27 splines, 5 wheel studs, and a 4.750-inch bolt circle

Detailed Description

This Timken wheel bearing and hub assembly is engineered for front-end service on a range of GM vehicles, including the Chevrolet S10, GMC Sonoma, and Chevrolet S10 Blazer. Part number 513013 features a 70.10 mm wheel pilot diameter, 70.60 mm brake pilot diameter, 81.50 mm hub pilot diameter, and 47.28 mm flange offset, helping maintain proper wheel and brake alignment. Timken’s bearing design focuses on smooth operation, controlled internal geometry, and surface finish quality to support durability and fuel efficiency.

This part cross-references SKF BR930052K for the same application.

Vehicle Fitment

• Fits 1983-1993 Chevrolet S10, front
• Fits 1991-1993 GMC Sonoma, front
• Fits 1991 Chevrolet Blazer, front
• Fits 1983-1991 Chevrolet S10 Blazer, front
• Fits 1983-1991 GMC S15 Jimmy, front
• Fits 1983-1990 GMC S15, front
• Fits 1979-1985 Buick Riviera, front
• Fits 1979-1985 Cadillac Eldorado, front
• Fits 1980-1985 Cadillac Seville, front
• Fits 1979-1985 Oldsmobile Toronado, front

Installation Notes and Tips

Verify spline count, bolt circle, pilot diameters, and ABS sensor requirements before installation. Clean the mounting surface, inspect the knuckle and axle interface for wear, and torque fasteners to the vehicle manufacturer’s specification. Confirm that the hub seats fully and that the wheel speed signal is recognized after installation.

Quality Assurance

Timken uses OE-developed test procedures to validate hub bearing design, materials, and manufacturing consistency. The assembly is built with premium seals, precision bearing profiles, and a tested ABS sensor to support reliable front-wheel service.