Quicksilver 861590A05 Circulating Pump Hose for MerCruiser GM V8 Engines

The Quicksilver 861590A05 is a genuine OEM circulating pump hose assembly designed specifically for MerCruiser marine engines equipped with GM V-6 and V-8 powerplants. This factory replacement hose ensures reliable coolant circulation through your engine's water pump system, maintaining optimal operating temperatures on the water.

Key Features:

• Genuine Mercury Marine OEM part for guaranteed fit and performance
• Includes integrated drain fitting for convenient coolant system maintenance
• Compatible with MerCruiser MCM (MerCruiser Marine) and MIE (MerCruiser Inboard) models
• Engineered specifically for GM small block V-8 engines: 305 CID (5.0L), 350 CID (5.7L), and 377 CID (6.2L)
• Allows draining of engine circulating water pump without hose removal
• Factory-grade rubber construction resistant to marine environment conditions

This circulating pump hose assembly is a direct replacement for worn or damaged hoses in your MerCruiser cooling system. The integrated drain fitting simplifies winterization and maintenance procedures, making it easier to protect your marine engine during off-season storage. Quicksilver parts are manufactured to Mercury Marine's exacting specifications, ensuring the same quality and reliability as the original equipment installed on your engine.