20554674 Adapter | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta adapter is an OEM service component used in the Engine Fluid / Sensor Adapter. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta engine fluid systems application. Technical identification: Threaded adapter matching the specified pipe, sensor or valve connection to its housing. In service, it routes the specified fluid or pressure signal between matched components without leakage, restriction, vibration damage or incorrect connection geometry. Selection must be confirmed by OEM part number 20554674, the exact model/product number, serial number and installed assembly configuration.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1346GE
• Volvo Penta TAD840GE
• Volvo Penta TAD853VE
• Volvo Penta TAD1650VE-B/51VE
• Volvo Penta TAD1643VE-B
• Volvo Penta TAD1344-45GE-B
• Volvo Penta TAD1341-43GE-B
• Volvo Penta TWD1644-45GE
• Volvo Penta TAD1670-72VE
• Volvo Penta TAD840-43VE
• Volvo Penta TAD850-52VE
• Volvo Penta TWD1682-83GE
• Volvo Penta TWD1683VE
• Volvo Penta TWD1672-1673GE

• Engine Family: TAD, TWD

⚙️ Key Features

• Genuine Volvo Penta OEM adapter
• OEM part number 20554674
• Technical distinction: Threaded adapter matching the specified pipe, sensor or valve connection to its housing
• Quantity varies by assembly, most commonly two

🔌 Function

Routes the specified fluid or pressure signal between matched components without leakage, restriction, vibration damage or incorrect connection geometry. Install without twist or preload, renew the specified seals/clamps, preserve the original routing and pressure- or leak-test the circuit after assembly.

⚠️ Common Signs of Failure

• Visible fluid leakage, dampness or staining along the line or connection
• Cracking, chafing, corrosion or impact damage
• Restricted flow caused by deposits, deformation or internal collapse
• Vibration fretting or failed support at clamps and mounting points

🛠️ 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

• 20554674 → Supersedes 20429844

OEM / Related Numbers

• 20429844 earlier number superseded by this part

📦 Condition

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