The Mercruiser 502 Impeller is a crucial component in marine cooling systems. It ensures efficient water circulation to prevent engine overheating. Designed for durability, it fits specific Mercruiser 502 engines.

The Mercruiser 502 Impeller is typically constructed from high-grade neoprene or nitrile rubber for durability and resistance to marine conditions. It is designed to fit specific Mercruiser pump housings, with common sizes ranging from 8 to 10 vanes and an outer diameter of approximately 4.5 inches. The material grade ensures compatibility with freshwater and saltwater environments, offering excellent buoyancy and flexibility. Recommended viscosity for lubrication is SAE 30 or marine-grade grease. The impeller's hardness typically ranges between 50-70 Shore A for optimal performance. Key properties include resistance to heat, abrasion, and chemical degradation.