Timken 8594S Wheel Seal - Rear

Timken 8594S Rear Wheel Seal

The Timken 8594S rear wheel seal is built for classic rear axle applications where dependable lubricant retention and contamination control matter. It is a direct-fit sealing solution for select Pontiac, Oldsmobile, and Buick rear wheel applications from 1964-1970.

• Precision sealing design helps retain gear oil and grease at the wheel end
• Reinforced outer case helps resist installation damage and improve durability
• Ribbed rubber inner diameter seals minor spindle imperfections and promotes positive spindle seating
• Internal contamination exclusion system helps block debris that can lead to leakage
• Vent holes allow lubricant flow around the seal lip to help reduce heat buildup

Fitment Coverage

• Fits 1970 Pontiac Grand Prix, rear, early 1970.
• Fits 1970 Pontiac GTO, rear, early 1970.
• Fits 1970 Pontiac LeMans, rear, early 1970.
• Fits 1970 Pontiac Tempest, rear, early 1970.
• Fits 1968-1969 Oldsmobile Cutlass, rear, O Axle.
• Fits 1968-1969 Oldsmobile Cutlass Supreme, rear, O Axle.
• Fits 1967-1969 Pontiac Firebird, rear.
• Fits 1968-1969 Pontiac GTO, rear.
• Fits 1964-1966 Pontiac GTO, rear.
• Fits 1964-1969 Pontiac LeMans, rear.
• Fits 1964-1969 Pontiac Tempest, rear.
• Fits 1965-1967 Buick Skylark, rear.
• Fits 1964-1967 Oldsmobile Cutlass, rear.
• Fits 1967 Oldsmobile Cutlass Supreme, rear.
• Fits 1965-1966 Buick LeSabre, rear.

Common Repair Uses

• Rear wheel seal replacement for oil seepage at the axle end
• Service repair for contaminated wheel-end lubricant
• Correction for seal wear on older rear axle assemblies
• Replacement for damaged seals found during brake or axle service
• Maintenance on classic Pontiac, Oldsmobile, and Buick rear driveline systems

Installation Notes

Confirm axle and rear-end application before installation, especially on 1970 early-production Pontiac models and 1968-1969 Oldsmobile O Axle applications. Inspect the spindle or axle sealing surface for wear, clean the bore thoroughly, and seat the seal evenly to avoid distortion. The ribbed inner diameter is designed to help seal minor surface imperfections, but a damaged shaft or housing should be corrected before assembly.

Quality Assurance

Timken sealing products use reinforced construction and contamination-control features to support reliable wheel-end service. The 8594S is engineered for consistent sealing performance in classic rear axle applications.