91356-ZW1-B00 Honda Marine Water Pump O-Ring | Genuine OEM Outboard Part

🔧 Product Description

Genuine Honda Marine Water-Pump O-Ring - Part Number: 91356-ZW1-B00

Genuine Honda water-pump O-ring used on selected BF75, BF90, BF115 and BF130 outboards. It seals the pump housing and cooling-water passage within the lower unit to maintain pump suction and cooling-system pressure.

⚙️ Key Features

• Genuine Honda Marine water-pump seal
• Direct replacement for the original moulded O-ring
• Used in large inline-four outboard water-pump assemblies
• Resistant to saltwater, heat and compression
• Replace during water-pump inspection or overhaul

🚤 Compatibility

Commonly used on

• Honda BF75/BF90 water-pump assemblies
• Honda BF115/BF130 water-pump assemblies

Typically suits

• Engine models:
• BF75A, including principal 2003-2006 applications
• BF75D K0 and K2 families
• BF90A, including principal 2003-2006 applications
• BF90D K0 and K2 families
• BF115A and BF115A K0 families
• BF130A family
• HP Range: 75HP-130HP
• Engine Type: Inline-four four-stroke outboards
• Year Range: Principal applications approximately 2003-2010
• Serial Note: Match the water-pump diagram to the complete engine model and frame serial.

🔌 Function

The O-ring prevents cooling water bypassing the water-pump housing and helps the impeller maintain sufficient pressure and flow.

⚠️ Common Signs of Failure

• Weak cooling-water discharge
• Overheating at idle
• Pump loses prime after launch
• Water leakage inside the extension case
• Flattened, torn or hardened seal

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 91356-ZW1-B00 (current documented Honda reference)

OEM / Related Numbers

• 91356ZW1B00

Aftermarket / Verified Equivalents

• JLM Marine: Aftermarket replacement for 91356-ZW1-B00
• RECMAR: REC91356-ZW1-B00

📦 Condition

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