19221-ZV5-000 Honda Marine Impeller Housing | Genuine OEM Outboard Part

🔧 Product Description

Genuine Honda Marine Impeller Housing - Part Number: 19221-ZV5-000

A genuine Honda water-pump housing for the BF25-BF50 cooling-system family. It encloses the flexible impeller and forms the upper pumping chamber in the lower unit.

⚙️ Key Features

• Factory Honda pump-chamber profile
• Direct-fit upper water-pump housing
• Used across carburetted and EFI BF25-BF50 families
• Marine-grade corrosion-resistant construction
• Suitable for complete pump rebuilds

🚤 Compatibility

Commonly used on

• Honda Marine four-stroke outboard cooling-system applications

Typically suits

• Engine models:
• BF25A, BF25D and BF25DK
• BF30A, BF30D and BF30DK
• BF35A
• BF40A, BF40D and BF40DK
• BF45A
• BF50A, BF50D and BF50DK
• HP Range: 25HP-50HP
• Engine Type: Inline three-cylinder four-stroke outboard
• Year Range: Approximately 1992 onward, model dependent

🔌 Function

Supports and surrounds the impeller so its vanes can generate the water flow required to cool the powerhead and exhaust passages.

⚠️ Common Signs of Failure

• Scored or melted internal pump surface
• Reduced tell-tale flow despite a new impeller
• Air leakage or loss of pump prime
• Overheating at idle or low speed
• Cracks around mounting points or outlet neck

🔄 Supersession & Cross Reference

OEM Supersession Chain

• No supersession; current Honda OEM reference

OEM / Related Numbers

• Honda: 19221-ZV5-000
• Related gasket: 19233-ZV5-000
• Related service kits: 06192-ZV5-series

Aftermarket / Verified Equivalents

• Recmar: REC19221-ZV5-000
• JLM Marine direct replacement: 19221-ZV5-000

📦 Condition

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