91301-ZY6-003 Honda Marine O-Ring | Genuine OEM Outboard Part

🔧 Product Description

Genuine Honda Inline-Four Exhaust / Water Passage O-Ring 76.4 × 3.1 mm - Part Number: 91301-ZY6-003

A genuine Honda 76.4 × 3.1 mm O-ring used in specified exhaust, water-jacket and engine-gasket joints on the 2.4-litre inline-four outboard family.

⚙️ Key Features

• Genuine Honda large-diameter sealing O-ring
• Nominal dimensions: 76.4 × 3.1 mm
• Heat-, coolant- and oil-resistant material
• Used in specified ZY6/ZVT engine and exhaust sealing locations

🚤 Compatibility

Commonly used on

• Honda BF115D and BF115J
• Honda BF135A and BF135D
• Honda BF140A
• Honda BF150A and BF150D
• Only gasket/exhaust diagrams specifying 91301-ZY6-003

Typically suits

• HP Range: 115-150 HP
• Engine Type: 2.4-litre inline four-cylinder EFI four-stroke outboard
• Year Range: Approximately 2004 onward, model dependent
• Serial / Identification Range: Confirm the complete frame serial, installation location and 76.4 × 3.1 mm dimensions.

🔌 Function

Creates a static seal at the specified large exhaust or cooling-water passage.

⚠️ Common Signs of Failure

• Water, oil or exhaust leakage at the sealed joint
• O-ring is flattened, brittle, swollen or cut
• Seal is pinched or displaced during assembly
• Mating groove is corroded or damaged

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 91301-ZY6-003 - current verified Honda service reference
• No later direct Honda supersession confirmed

OEM / Related Numbers

• 91301-ZY6-003
• 91301ZY6003

Aftermarket / Verified Equivalents

• No verified direct aftermarket equivalent with confirmed Honda material specification

📦 Condition

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