19215-ZW9-020 Honda Marine Impeller Housing Assembly | Genuine OEM Outboard Part

🔧 Product Description

Genuine Honda Marine Impeller Housing Assembly - Part Number: 19215-ZW9-020

A genuine upper water-pump housing assembly for Honda's compact twin-cylinder BF8D-BF20D outboard family. The moulded housing surrounds the impeller and forms the pump chamber that converts impeller rotation into pressurised cooling-water flow.

⚙️ Key Features

• Complete Honda upper pump-housing assembly
• Factory water-tube outlet and pump-chamber geometry
• Current replacement for earlier ZW9 housings
• Designed for repeated seawater exposure
• Used with impeller cover 19231-ZW9-000 and gasket 19232-ZW9-000

🚤 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, model dependent

🔌 Function

Contains the impeller, directs water into the delivery tube and maintains the close pump clearances required for reliable suction and pressure.

⚠️ Common Signs of Failure

• Weak cooling-water discharge with a serviceable impeller
• Scoring, melting or distortion inside the pump chamber
• Water leakage around the housing joint
• Overheating after dry running
• Loose or damaged water-tube outlet

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 19215-ZW9-020 → Supersedes 19215-ZW9-010
• 19215-ZW9-010 → Supersedes 19215-ZW9-000

OEM / Related Numbers

• Honda: 19215-ZW9-020
• Honda: 19215-ZW9-010
• Honda: 19215-ZW9-000

Aftermarket / Verified Equivalents

• Aftermarket Honda-pattern housing assembly sold under 19215-ZW9-020

📦 Condition

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