Perko Flush Pro 5/8-Inch Engine Flushing Valve

The Perko Flush Pro 5/8-Inch Engine Flushing Valve simplifies freshwater flushing of a compatible inboard engine by providing a dedicated garden-hose connection in the raw-water intake circuit. Water pressure from the hose activates the internal check-valve arrangement and automatically closes off the normal hull intake during flushing.

The transparent body lets the operator confirm water movement visually, while the durable polymer housing and stainless spring are designed for repeated marine service. The valve can also be used as an emergency bilge-pumping access point on supported installations when configured according to Perko instructions.

Confirm hose and intake size, engine cooling-system layout, mounting location, garden-hose access, and manufacturer flushing requirements before installation. Never operate the engine without adequate cooling water, inspect the transparent body and connections regularly, and verify normal raw-water flow after flushing is complete. Find more in our bilge and water pumps.

• A garden-hose connection feeds the compatible raw-water cooling circuit.
• Water pressure activates the internal check-valve system.
• The transparent body gives quick visual confirmation.
• A dedicated flushing point reduces setup each time the engine is serviced.