19231-ZW9-000 Honda Marine Impeller Cover | Genuine OEM Outboard Part

🔧 Product Description

Genuine Honda Marine Impeller Cover - Part Number: 19231-ZW9-000

A genuine lower water-pump cover/plate for the compact BF8D-BF20D pump assembly. It closes the pump chamber beneath the impeller and provides the smooth sealing surface required for efficient water movement.

⚙️ Key Features

• Factory flatness and port alignment
• Supports the lower face of the impeller
• Works with housing 19215-ZW9-020
• Used with gasket 19232-ZW9-000
• Direct Honda replacement for ZW9 pump assemblies

🚤 Compatibility

Commonly used on

• Honda Marine four-stroke outboard cooling-system applications

Typically suits

• Engine models:
• BF8D and BFP8D
• BF9.9D and BFP9.9D
• BF10B, BF10D, BFP10B and BFP10D
• BF15D
• BF20D
• HP Range: 8HP-20HP
• Engine Type: Inline two-cylinder four-stroke outboard
• Year Range: Approximately 2001 onward

🔌 Function

Forms the lower boundary of the water-pump chamber and helps the impeller create suction from the gearcase water inlets.

⚠️ Common Signs of Failure

• Grooving or corrosion on the impeller contact face
• Reduced pump output with a new impeller
• Water leakage at the cover gasket
• Distortion caused by overheating or dry running
• Visible erosion around cooling-water ports

🔄 Supersession & Cross Reference

OEM Supersession Chain

• No supersession; current Honda OEM reference

OEM / Related Numbers

• Honda: 19231-ZW9-000
• Related housing: 19215-ZW9-020
• Related gasket: 19232-ZW9-000

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine Honda Marine OEM part
• Brand new
• Supplied in original or equivalent packaging