85786A1 Bendix B175-23 Mercruiser Flame Arrestor | Genuine Used Part

🔧 Product Description

Genuine MerCruiser Bendix B175-23 Flame Arrestor - Part Number: 85786A1

A genuine used MerCruiser Bendix flame arrestor and carburettor cover assembly for selected Rochester two-barrel carburettor applications.

The arrestor has an approximately 2-5/8-inch carburettor throat connection and is commonly used on late-1970s and early-1980s MerCruiser four-cylinder and inline-six petrol engines. The assembly is associated with Bendix stamping B175-23.

⚙️ Key Features

• Genuine Mercury MerCruiser OEM flame arrestor
• Correct Mercury part number 85786A1
• Bendix B175-23 manufacturer identification
• Approximately 2-5/8-inch throat for Rochester two-barrel carburettors
• Associated with crankcase ventilation hose and connector components

🚤 Compatibility

Commonly used on

• MerCruiser Rochester two-barrel carburettor installations
• Late-1970s and early-1980s MerCruiser petrol engines

Typically suits

• Engine models:
• MerCruiser 120HP 2.5L inline four-cylinder engines using the matching Rochester carburettor throat
• MerCruiser 140HP 3.0L inline four-cylinder engines using the matching Rochester carburettor throat
• MerCruiser 165HP 4.1L inline six-cylinder engines - approximately 1979-1981
• MerCruiser installations using Bendix B175-23 and Mercury flame-arrestor assembly 85786A1
• HP Range: Approximately 120HP - 165HP
• Engine Type: MerCruiser carburetted inline four-cylinder and inline six-cylinder petrol engine
• Year Range: Approximately 1979 - 1981

🔌 Function

The flame arrestor allows the carburettor to draw air while helping prevent an intake backfire from igniting vapours in the engine compartment. The connected ventilation components also route crankcase vapour toward the intake.

⚠️ Common Signs of Failure

• Mesh is crushed, corroded or blocked
• Base no longer fits securely over the carburettor
• Vent hose fitting is cracked or missing
• Oil contamination restricts airflow
• Flame-containment ability is compromised

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 85786A1 current known OEM assembly reference
• 85786 earlier OEM base reference

OEM / Related Numbers

• 85786A1
• 85786
• B175-23
• 32-62060 related vent hose
• 47957 related vent-hose connector
• 745061199613

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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