20405896 Compression Spring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Engine Oil Pressure Regulating Valve Spring - Part Number: 20405896

Genuine Volvo Penta compression spring used in the cylinder-block lubricating-oil pressure-control valve on TAD530GE and TAD531GE engines. It works with valve 20405936, sleeve 20405937, ring 20405904 and delivery valve 11700271.

⚙️ Key Features

• Calibrated oil-pressure control spring

• Installed in the cylinder-block pressure-regulating valve assembly

• Controls the opening force of valve 20405936

• Works with guide sleeve 20405937 and retaining ring 20405904

• Spring free length and load must meet the workshop specification

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20405896 - current Volvo Penta pressure-control spring reference

OEM / Related Numbers:

• 11700271 - delivery valve

• 20405904 - retaining ring

• 20405936 - regulating valve

• 20405937 - guide sleeve

• 20412745 - related cap plug

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta TAD5 engine-oil pressure regulating systems

Typically suits:

• Engine / equipment models:

• TAD530GE

• TAD531GE

• Engine Type: Volvo Penta 5-litre four-cylinder industrial diesel

• Year / Serial Range: Cylinder-block oil-control arrangement dependent

🔌 Function

Applies the calibrated closing force to the oil-pressure regulating valve so engine-oil pressure remains within specification.

Common signs of failure:

• Low or excessive engine-oil pressure

• Oil-pressure fluctuation

• Spring broken, distorted or weakened

• Valve opening at the wrong pressure

• Bearing damage caused by pressure-control failure

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging