Timken 4530 Manual Transmission Output Shaft Seal - Rear

Manual Transmission Output Shaft Seal

Timken 4530 is a manual transmission output shaft seal built to retain lubricant at the rear of the transmission and block road debris from entering the assembly. It is a direct-fit service part for select Chevrolet, GMC, and related manual transmission applications, including rear-position use on Chevrolet S10 and Blazer models.

• Precision sealing design helps control oil and grease loss
• Reinforced outer case resists installation damage and adds durability
• Ribbed rubber inner diameter seals minor spindle imperfections and supports positive seating
• Internal contamination exclusion system helps keep debris out of the seal area
• Vent holes promote lubricant flow around the seal lip to reduce heat build-up

Fitment Details

• Fits 1996-1999 Chevrolet Blazer, rear
• Fits 1996-1999 Chevrolet S10, rear
• Fits 1996-1999 GMC Jimmy, rear
• Fits 1996-1999 GMC Sonoma, rear
• Fits 1992-1993 Chevrolet K3500, rear, New Process 3500 - Number C320844
• Fits 1991-1993 GMC K3500, rear, New Process 3500 - Number C320844
• Fits 1991 Chevrolet C2500, rear, Getrag
• Fits 1988-1989 Chevrolet C2500, rear, Getrag
• Fits 1991 Chevrolet K2500, rear, Getrag
• Fits 1988-1989 Chevrolet K2500, rear, Getrag
• Fits 1991 GMC C2500, rear, Getrag
• Fits 1988-1989 GMC C2500, rear, Getrag
• Fits 1991 GMC K2500, rear, Getrag
• Fits 1988-1989 GMC K2500, rear, Getrag
• Fits 1989 Chevrolet R2500, rear, Getrag
• Fits 1988-1989 GMC R2500, rear, Getrag
• Fits 1988 Chevrolet R20, rear, Getrag

What This Seal Helps Address

• Transmission fluid leakage at the output shaft
• Contamination entering the rear of the manual transmission
• Seal wear caused by heat and lubricant breakdown
• Leakage related to minor shaft surface imperfections
• Damage from installation on the seal outer case

Installation Notes

Verify transmission type and rear output application before installation. This Timken 4530 seal is listed for specific Getrag and New Process 3500 applications, so match the transmission identification and notes on the vehicle before service. Clean the sealing surface thoroughly and inspect the shaft for wear or scoring before installing the new seal.

Quality Assurance

Timken oil and grease seals use a reinforced case, contamination exclusion features, and venting around the seal lip to support consistent sealing performance in manual transmission service. This part cross-references Bando 4530 and SKF 14712 for the same application.