Timken 710605 Engine Crankshaft Seal - Front

Timken 710605 Front Crankshaft Seal

The Timken 710605 engine crankshaft seal is built for front-end sealing performance where oil control and contamination exclusion matter. It is a direct-fit option for select Buick, Chevrolet, GMC, and Oldsmobile applications, including front seal service on the Trailblazer, Envoy, and Colorado.

Engineered with a reinforced outer case and a ribbed rubber inner diameter, this seal is made to seat securely and maintain sealing contact around minor spindle imperfections. Timken 710605 also uses an internal contamination exclusion design and vent holes to help manage heat around the seal lip.

Key Features

• Front engine crankshaft seal for select GM applications
• Reinforced outer case helps resist installation damage
• Ribbed rubber inner diameter supports a secure seal on minor surface imperfections
• Internal contamination exclusion system helps block debris entry
• Vent holes promote lubricant flow around the seal lip to reduce heat build-up
• Cross-references National 710605 and Walker Exhaust 16970 for the same application

Detailed Description

Timken 710605 is a front crankshaft seal designed for engines that need dependable oil retention at the front of the crankshaft. It is compatible with 2002-2004 Chevrolet Trailblazer, 2002-2003 GMC Envoy, 2002-2003 GMC Envoy XL, 2004 Chevrolet Colorado, 2004 GMC Canyon, 2004 Buick Rainier, 2004 Chevrolet Trailblazer, 2004 GMC Envoy, and 2002-2004 Oldsmobile Bravada front applications. The seal’s construction focuses on stable seating, contamination control, and heat management for consistent service life.

What It Helps Solve

• Front crankshaft oil leakage
• Grease seepage at the seal area
• Debris intrusion around the crankshaft seal lip
• Heat-related seal wear at the front of the engine
• Seal fit issues caused by minor spindle imperfections

Installation Notes and Tips

Verify the balancer design and hub dimensions before installation, especially on 2004 Chevrolet Trailblazer and 2004 GMC Envoy applications noted for a 38.4mm I.D. and first-design balancer without a step on the hub. Clean the sealing surface thoroughly, inspect for scoring or wear, and install the seal squarely to avoid lip distortion. Confirm the vehicle’s year, make, model, and front position match the listed application before service.

Quality Assurance

Timken oil and grease seals are built with precision sealing designs to control lubricant loss and keep contaminants out of the engine sealing system. Timken 710605 follows that construction approach for front crankshaft seal service on the listed GM vehicles.