12310-ZW5-010ZA Honda Head Cover | Genuine Used Part

🔧 Product Description

Genuine Honda BF115A / BF130A Cylinder-Head Cover - Part Number: 12310-ZW5-010ZA

A genuine used dark-grey Honda Marine head or valve cover for BF115A and BF130A inline-four outboards. The cover seals the camshaft and valve-train area and carries the oil-filler, breather and ignition-component mounting features used by the ZW5 engine family.

⚙️ Key Features

• Genuine Honda Marine cylinder-head cover
• Correct part number 12310-ZW5-010ZA
• Used on BF115A and BF130A engines
• Factory dark-grey finish
• Matches head-cover gasket 12391-ZW5-010

🚤 Compatibility

Commonly used on

• Honda BF115A four-stroke outboards
• Honda BF130A four-stroke outboards
• 2.2L ZW5 inline-four marine engine family

Typically suits

• BF115A LA / XA and related model codes
• BF130A LA / LCA / XA / XCA and related model codes
• BZBD, BZBE and related engine-number families
• Confirmed used examples include 2000-2004 BF130 engines
• Overall production approximately 1999-2007
• HP Range: 115HP - 130HP
• Engine Type: 2.2L inline-four EFI four-stroke
• Year Range: Approximately 1999-2007
• Colour: Honda dark grey / NH8-style suffix
• Fitment Requirement: Confirm breather, ignition and oil-filler arrangement

🔌 Function

The cover seals the cylinder head and retains oil around the camshafts and valve train while allowing controlled crankcase breathing.

⚠️ Common Signs of Failure

• Oil leak at the cover gasket
• Cracked cover or bolt boss
• Warped sealing flange
• Blocked breather system
• Damaged filler or ignition mounting points

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 12310-ZW5-010ZA established later ZW5 cover reference
• Earlier ZW5 cover revisions may exist and should be matched by casting and breather layout
• No confirmed later complete-cover supersession

OEM / Related Numbers

• 12310-ZW5-010ZA
• 12310ZW5010ZA
• 12391-ZW5-010 head-cover gasket
• BZBD and BZBE engine-number families
• 15631-ZW5-000 related oil-filler extension
• 15100-ZW5-000 related oil pump

Aftermarket / Verified Equivalents

• No verified complete aftermarket marine head cover
• Used genuine Honda ZW5 covers
• Aftermarket-compatible valve-cover gaskets may be available, but Honda 12391-ZW5-010 is the verified fit
• Used automotive-derived components require breather and marine-corrosion verification
• Universal valve covers are not suitable

📦 Condition

• Genuine used part
• Removed from running engine or vessel where applicable
• In good working condition unless otherwise stated