Timken 8792S Manual Transmission Shift Shaft Seal

Manual Transmission Shift Shaft Seal for GM and Import Applications

Restore sealing performance at the transmission shift shaft with Timken 8792S. This manual transmission shift shaft seal is built for a precise fit across a wide range of Chevrolet, GMC, Buick, Pontiac, Cadillac, Isuzu, BMW, and other applications, including many Silverado 1500 and Sierra 1500 models.

• Reinforced outer case helps resist installation damage and improves seal durability
• Ribbed rubber inner diameter seats against minor spindle imperfections for a tighter seal
• Internal contamination exclusion system helps block debris that can lead to leakage
• Vent holes promote lubricant flow around the seal lip to reduce heat buildup
• Precision sealing design helps retain lubricant and keep contaminants out

Detailed Product Overview

Timken 8792S is engineered for transmission sealing applications where consistent shaft contact and contamination control matter. The reinforced case supports cleaner installation, while the ribbed inner diameter helps the seal conform to small surface irregularities on the spindle. Venting around the lip allows lubricant circulation to help manage operating temperature, which is important in daily-driven trucks and cars such as Chevrolet Express, GMC Savana, and Chevrolet Silverado platforms.

This part number, 8792S, is used in a broad range of manual transmission and related sealing applications across GM rear-wheel-drive and import fitments. This part cross-references no listed aftermarket part numbers in the provided data.

What It Helps Address

• Transmission fluid seepage at the shift shaft
• Debris intrusion around the seal area
• Seal wear from heat buildup
• Poor sealing on shafts with minor surface imperfections
• Leak-related drivability concerns and low lubricant level issues

Installation Notes and Fitment

Compatible With 1984-2014 Chevrolet and GMC applications, plus select Buick, Pontiac, Cadillac, Isuzu, BMW, Honda, Jaguar, Rolls-Royce, Suzuki, Acura, Aston Martin, and Geo models. Fits 1996-2014 Chevrolet Express 1500, 1996-2009 Chevrolet Express 2500, 1996-1999 Chevrolet Express 3500, 2000-2013 Chevrolet Silverado 1500, 1999-2013 GMC Sierra 1500, 2004-2012 Chevrolet Colorado, and 2004-2012 GMC Canyon. Additional fitments include 1984-2004 Chevrolet Corvette, 1985-2004 Chevrolet S10, and 1991-2004 GMC Sonoma.

Verify transmission type and application notes before installation, especially on listings marked for 4L30E or 4L80E-related use. Clean the shaft and seal bore thoroughly, and inspect the sealing surface for wear or scoring before pressing the seal into place.

Quality Assurance

Timken oil and grease seals use precision sealing designs focused on lubricant retention and contaminant exclusion. The 8792S follows that approach with a reinforced case and lip design intended for dependable sealing performance in demanding automotive transmission service.