ACDelco 12591866 Crankshaft Rear Oil Seal

The ACDelco 12591866 is a high-quality crankshaft rear oil seal designed to prevent oil leakage at the rear of the engine crankshaft. This genuine GM replacement seal provides a reliable barrier between the crankshaft and the engine block, ensuring proper oil retention and protecting critical engine components from oil loss.

Key Features:

• Direct replacement crankshaft rear main seal for select GM vehicles
• Engineered to OE specifications for precise fit and durability
• High-quality elastomer construction resists heat, pressure, and engine chemicals
• Prevents oil leakage at the crankshaft-to-engine block interface
• Black seal design for professional appearance

This seal assembly is critical for maintaining proper engine lubrication and preventing oil contamination of the clutch or flywheel components. ACDelco seals meet stringent GM quality standards and provide reliable performance for professional repairs and maintenance.