12391-ZW1-010 Honda Marine Gasket | Genuine OEM Outboard Part

🔧 Product Description

Genuine Honda BF75A/BF90A Head Cover Gasket - Part Number: 12391-ZW1-010

New genuine Honda head-cover gasket for original BF75A and BF90A four-stroke outboards. It seals the rocker/cam cover to the cylinder head and prevents engine-oil leakage.

⚙️ Key Features

• Genuine Honda head-cover gasket

• Correct perimeter shape for BF75A/BF90A

• Oil- and heat-resistant moulded construction

• Reusable only if undamaged, although renewal is recommended after removal

• Maintains a clean, dry cylinder-head area

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 12391-ZW1-010 (Honda OEM reference)

OEM / Related Numbers:

• 12391-ZW1-010

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Honda Marine four-stroke outboard engines

Typically suits:

• Engine models:

• BF75A carburetted four-stroke

• BF90A carburetted four-stroke

• HP Range: 75HP - 90HP

• Engine Type: Inline-four Honda four-stroke outboard

• Year Range: Approximately 1997 - 2006

🔌 Function

This precision-formed gasket seals the mating surfaces identified in the compatibility section. It prevents combustion gas, intake air, exhaust gas, cooling water, engine oil or fuel vapour from escaping or crossing between adjoining passages.

Common signs of failure:

• Oil seeps from the head-cover perimeter

• Gasket is hard, shrunken, cut or permanently compressed

• Oil contaminates ignition wiring or hot exhaust surfaces

• Cover is removed for valve or camshaft service

• Fasteners remain correctly torqued but leakage continues

📦 Condition

• Genuine Honda part

• Brand new

• Supplied in original or equivalent packaging