19256-ZY3-010 Honda Water Hose | Genuine Used Part

🔧 Product Description

Genuine Honda V6 Cooling-Water Relief Tube - Part Number: 19256-ZY3-010

A genuine used Honda Marine water-relief tube for selected BF175, BF200, BF225 and BF250 V6 four-stroke outboard motors.

The tube is installed in the exhaust-manifold and thermostat assembly and carries cooling water through the pressure-relief circuit. It helps direct additional water flow as cooling-system pressure changes with engine speed.

⚙️ Key Features

• Genuine used Honda Marine water-relief tube
• Correct OEM part number 19256-ZY3-010
• Factory description: Tube, Water Relief
• Used in the V6 exhaust-manifold and thermostat system
• Formed tube for correct routing and clearance

🚤 Compatibility

Commonly used on

• Honda V6 exhaust-manifold and thermostat assemblies
• Cooling-system pressure-relief circuits

Typically suits

• Honda BF175A
• Honda BF175D
• Honda BF200A
• Honda BF200D
• Honda BF225A
• Honda BF225D
• Honda BF250A
• Honda BF250D
• Model and frame-serial groups whose exhaust-manifold diagram specifies 19256-ZY3-010
• HP Range: 175HP - 250HP
• Engine Type: Honda V6 EFI four-stroke outboard
• Year Range: Approximately 2002 onward

🔌 Function

The tube carries cooling water through the relief circuit, helping the engine maintain adequate water flow at different operating speeds.

⚠️ Common Signs of Failure

• Cooling water leaks beneath the cowling
• Tube is cracked, split or heat damaged
• Internal salt build-up restricts flow
• Engine overheats at higher RPM
• Relief circuit does not discharge correctly
• Tube connections show corrosion or staining
• Clamps no longer hold the tube securely

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 19256-ZY3-010 current listed water-relief-tube reference

OEM / Related Numbers

• 19256-ZY3-010
• 19256ZY3010
• 19256-ZY3
• 19251-ZY3-series thermostat and water-passage components
• 19255-ZVL-000 related D-series water tube
• 19257-ZY3-000 and 19257-ZVL-000 related water tubes
• 19261-ZY3-000 or 19261-ZVL-000 related hose by model
• Related clamps and relief-valve components

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Inspect internally for salt blockage before installation
• Removed from running engine where applicable
• In good working condition unless otherwise stated