19315-ZVL-010ZA Honda Thermostat Cover | Genuine Used Part

🔧 Product Description

Genuine Honda NH8 Dark Gray Thermostat Cover - Part Number: 19315-ZVL-010ZA

A genuine used Honda thermostat cover finished in NH8 dark gray for selected BF175D, BF200D, BF225D and BF250D outboards.

The cover closes the thermostat housing on the exhaust-manifold cooling circuit and retains the thermostat spacer, thermostat assembly and sealing ring.

⚙️ Key Features

• Genuine Honda Marine OEM thermostat cover
• Correct Honda part number 19315-ZVL-010ZA
• NH8 dark-gray colour-finished cover
• Used with spacer 19313-ZVL-020 / 020ZA
• Fits D-series BF175D through BF250D thermostat assemblies

🚤 Compatibility

Commonly used on

• Honda BF175D, BF200D, BF225D and BF250D exhaust-manifold thermostat assemblies
• Honda ZVL-family V6 cooling systems

Typically suits

• Engine models:
• Honda BF175D
• Honda BF200D - BBRJ-1000001 and above
• Honda BF200DK1 - BBRJ-1100001 and above
• Honda BF225D - BBPJ-1000001 and above
• Honda BF225D regional models - BBPJ-8000001 and above
• Honda BF225DK1 later-production models
• Honda BF250D - BBNJ-1000001 and above
• Honda BF250D regional models - BBNJ-8000001 and above
• Honda BF250DK1 - BBNJ-1100001 / 8100001 and above
• HP Range: 175HP - 250HP
• Engine Type: Honda V6 four-stroke outboard
• Year Range: Approximately 2018 onward

🔌 Function

The cover seals the outer side of the thermostat chamber and clamps the spacer and thermostat components into position. It prevents cooling-water leakage while allowing access for thermostat servicing.

⚠️ Common Signs of Failure

• Cover is cracked, warped or corroded
• Sealing face is pitted or damaged
• Cooling water seeps from the thermostat housing
• Bolt bosses or threads are damaged
• Cover cannot clamp the spacer and seal evenly

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 19315-ZVL-010ZA updated Honda thermostat-cover reference
• 19315-ZVL-000ZA earlier Honda thermostat-cover reference

OEM / Related Numbers

• 19315-ZVL-010ZA
• 19315ZVL010ZA
• 19315-ZVL-000ZA
• 19313-ZVL-020 related thermostat-cover spacer
• 19300-ZX2-003 related thermostat assembly
• 19303-ZX2-003 related thermostat sealing ring

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated