21346370 Adapter | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta machined adapter used in an engine lubrication-system selector-valve assembly. It provides the oil passages and mounting interface for the valve cone, spring, seals, nipple and related fittings that control or redirect lubricating-oil flow.

🚤 Compatibility

• Engine Family: D, TAMD, MD

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta oil-system adapter
• Machined passages for selector-valve oil flow
• Interfaces with valve cone, spring and sealing components
• Provides correct nipple and fitting locations
• Match oil-system option and engine serial number
• Engine type: Volvo Penta D12 or D13 inline-six heavy-duty diesel, application dependent

🔌 Function

Provides the sealed oil passages and mounting interface that allow the selector valve to route lubricating oil correctly.

⚠️ Common Signs of Failure

• Pressure or flow outside specification
• Leakage through the valve body or connections
• Valve sticking open or closed
• Repeated alarms or unstable system operation
• Corrosion, contamination or damaged sealing surfaces

🛠️ 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 Supersession Chain

• 21346370 → Supersedes 3829975

OEM / Related Numbers

• 3829975 earlier number superseded by this part
• 1698627 - plug
• 977937 - gasket
• 471085 - valve cone
• 23699753 - spring
• 976932 - gasket
• 23687599 - plug
• 941582 - nipple
• 993235 - X-ring
• 949657 - O-ring
• 21845907 - selector valve
• 962979 - set screw
• 842912 - flange

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-N MH, D13B-N MH (FE), D13C1-A MH, D13C2-A MH, D13C1-B MG, D13C3-B MG, D13C2-B MG, D13C4-B MG, D13C2-A MG, D13C1-A MG
• Volvo Penta D16C-A MG, D16C-A MH, D16C-B MH, D16C-C MH, D16C1-E MG, D16C1-F MG, D16C2-E MG, D16C2-F MG, D16C-D MH, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
• Volvo Penta D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG
• Volvo Penta D5A-B TA, D5A-T, D5A-TA
• Volvo Penta D7A-B TA, D7A-T, D7A-TA
• Volvo Penta D9A2L MH, D9A2A, D9A2C
• Volvo Penta D12D-A MG, D12D-E MG
• Volvo Penta MD2010, MD2010B
• Volvo Penta TAMD103A
• Volvo Penta TAMD74A