20713943 Adapter | Genuine Volvo Penta Part

🔧 Product Description

A genuine adapter used in a Volvo Penta D12 front-engine or auxiliary installation. It provides the machined interface between components whose mounting patterns or connection geometry differ.

⚙️ Key Features

• Exact mounting geometry for the assigned D12 front-engine position
• Maintains component alignment under heat and vibration
• Designed for the documented adapter/cover hardware arrangement
• Use the specified torque and thread treatment
• Serial-specific parts list for your engine must confirm the exact position
• Supplied as the named component only

🔌 Function

Provides the specified mechanical interface and alignment between the adjoining D12 components.

⚠️ Common Signs of Failure

• The component is cracked, worn, corroded or damaged
• The joint loosens or develops movement
• Threads or mounting surfaces are damaged
• The adjoining components no longer align
• Replacement is required after removal if secure reuse cannot be confirmed

🛠️ Service Notes

• Check the adapter against both of the parts it has to join before fitting — adapters are specific to an engine and its variant, and one that is close but not correct will not seat or seal properly
• Clean and inspect both mating faces or connector ends; grit, old sealant or corrosion on one side is the usual reason an adapted joint leaks or works intermittently
• Renew any O-ring, gasket or sealing washer belonging to the joint rather than reusing the old one, and lubricate rubber seals lightly so they slide into place instead of rolling or nipping
• Tighten threaded adapters to the figure given in the workshop manual for that connection; many go into aluminium or onto a soft seat and will distort if pulled up hard
• Where the adapter is a workshop tool, check it for thread wear and damage before use and never modify it to make something fit

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20713791 - Related D12 timing-gear cover
• 20713944 - Related cross-recessed retaining screw

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging