Timken 2043 Differential Pinion Seal - Rear or Rear Outer

Timken 2043 Differential Pinion Seal

Timken 2043 is a rear differential pinion seal built for applications that need reliable lubricant retention and contamination control. It uses an S-Nitrile sealing material, a reinforced outer case, and a ribbed inner diameter to help maintain a secure seal on the spindle or shaft surface.

Compatible With rear applications on Chevrolet Blazer, Chevrolet S10, GMC Jimmy, GMC Sonoma, and other GM driveline platforms listed below, this seal is sized for a 2.768 in. outside diameter, 1.940 in. shaft diameter, 2.762 in. housing bore, and 0.500 in. width.

Key Features

• S-Nitrile construction for sealing performance in driveline service
• Reinforced outer case helps resist installation damage
• Ribbed rubber inner diameter seals minor spindle imperfections
• Internal contamination exclusion system helps block debris entry
• Vent holes promote lubricant flow around the seal lip to reduce heat build-up
• CW-Clock Wise helix type
• Timken 2043 dimensions: 2.768 in. outside diameter, 1.940 in. shaft diameter, 2.762 in. housing bore, 0.500 in. width

Detailed Description

Timken 2043 is a differential pinion seal for rear axle service where the pinion area must stay clean and properly lubricated. The seal’s precision design helps keep gear oil in the housing while limiting the entry of dirt and road contamination that can lead to leakage and premature wear. This part cross-references Carlson 19017 and Davico Mfg 19273 for the same application.

Use Timken 2043 on confirmed rear fitments such as 1997 Chevrolet Blazer, 1995-1997 Chevrolet S10, 1991-1997 GMC Sonoma, and 1997 GMC Jimmy. It also appears in a wide range of GM rear axle applications across Chevrolet, GMC, Buick, Cadillac, Oldsmobile, and Pontiac models listed in the fitment table.

What It Helps Address

• Rear differential gear oil leakage at the pinion area
• Contamination entering the seal lip and housing
• Heat-related seal wear from poor lubricant circulation
• Seal damage during installation
• Minor shaft or spindle surface imperfections that can affect sealing

Installation Notes and Tips

Verify the housing bore, shaft diameter, and seal width before installation. Confirm the axle or differential design, since several listed vehicles require specific ring gear or first-design applications. Clean the sealing surface thoroughly and inspect for grooves, pitting, or wear before pressing in the new seal.

Body fitment examples include Fits 1997 Chevrolet Blazer, Rear; Fits 1995-1997 Chevrolet S10, Rear; Fits 1991-1997 GMC Sonoma, Rear; and Fits 1997 GMC Jimmy, Rear. Additional rear and rear outer applications are listed for GM cars and trucks from 1964-1997.

Quality Assurance

Timken manufactures oil and grease seals with precision sealing designs intended for driveline durability and contamination control. Timken 2043 is built to the listed dimensional specifications for accurate service replacement in the applications shown.