Timken JLM104910 Differential Pinion Race

Timken Differential Pinion Race Overview

The Timken JLM104910 Differential Pinion Race is engineered for reliable driveline performance in a variety of vehicles including BMW, Chevrolet, Dodge, Ford, GMC, Jeep, Land Rover, Lexus, Maserati, Porsche, and Toyota models. Designed to meet precise specifications, this pinion race ensures proper bearing fitment and durability for your differential assembly.

• Width options: 0.669 inch and 17.00 mm for accurate fitment
• Outside diameter measurements: 3.228 inch and 82.00 mm for compatibility
• Bearing cup radius sizes: 0.020 inch and 0.50 mm for optimal bearing seating
• Compatible with multiple vehicle makes and models including BMW 528i, 540i, 740i, and Toyota 4Runner
• Part number JLM104910 for precise identification and replacement

Technical Specifications and Compatibility

The Timken JLM104910 differential pinion race features dual width measurements of 0.669 inch and 17.00 mm, accommodating specific differential designs. Its outside diameter is precisely 3.228 inches (82.00 mm), ensuring a secure fit within the differential housing. The bearing cup radius is available in two sizes, 0.020 inch and 0.50 mm, to match the bearing cup profile and maintain proper bearing alignment. This part is compatible with a wide range of vehicles, including BMW models such as the 528i, 540i, 740i, and 750iL, as well as Toyota 4Runner, Land Rover Range Rover, and various Chevrolet and Ford trucks like the Blazer and F-250.

Applications and Problem Resolution

This differential pinion race is used in the driveline assembly to support the pinion bearing, ensuring smooth rotation and load distribution within the differential. It addresses several common issues:

• Eliminates excessive bearing wear caused by improper fitment
• Prevents differential noise and vibration due to bearing misalignment
• Reduces risk of premature differential failure from bearing damage
• Restores proper pinion bearing preload and gear mesh
• Supports reliable driveline performance under varying load conditions

Installation Notes and Tips

When installing the Timken JLM104910 differential pinion race, ensure the race is pressed evenly into the differential housing to avoid distortion. Use appropriate tools to maintain the specified bearing cup radius and verify the outside diameter matches the housing bore. Clean all mating surfaces thoroughly before installation to prevent contamination. Confirm compatibility with your vehicle’s make and model, such as BMW 740i or Toyota 4Runner, to ensure correct fitment.

Quality Assurance and Warranty

Timken manufactures the JLM104910 differential pinion race to meet stringent quality standards, providing consistent performance and durability. While specific warranty details may vary, Timken products typically come with a limited warranty against defects in materials and workmanship. This ensures confidence in the part’s reliability for your BMW, Chevrolet, or Toyota differential repair needs.