20405288 Hexagon Nut | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Oil Pan / Oil Pump Retaining Hexagon Nut - Part Number: 20405288

Genuine Volvo Penta hexagon nut used in the lubricating-oil pan and oil-pump hardware on TAD540VE, TAD541VE and TAD542VE engines. The nut must be installed at the exact schematic position and tightened to the specified torque.

⚙️ Key Features

• Factory hexagon retaining nut

• Confirmed in TAD540-TAD542 lubricating-oil assemblies

• Correct thread and strength grade for the original stud or bolt

• Used in oil-pan, pickup or oil-pump mounting hardware

• Replace if threads or locking faces are damaged

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20405288 - current Volvo Penta hexagon-nut reference

OEM / Related Numbers:

• Associated stud, washer and oil-system component are schematic-position dependent

Aftermarket / Verified Equivalents:

• None confirmed

🚤 Compatibility

Commonly used on:

• Volvo Penta TAD5 lubricating-oil pan and pump systems

Typically suits:

• Engine / equipment models:

• TAD540VE

• TAD541VE

• TAD542VE

• Engine Type: Volvo Penta 5-litre industrial diesel

• Year / Serial Range: Oil-system position and engine serial-number dependent

🔌 Function

Secures the assigned oil-pan, pickup or pump component at the required clamp load.

Common signs of failure:

• Nut loosening in service

• Damaged or stretched threads

• Oil leakage caused by lost clamp load

• Rounded hexagon flats

• Unable to reach the specified tightening torque

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging