20840807 Thrust Washer | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Valve-Train Thrust Washer - Part Number: 20840807

Application-specific Valve-Train Thrust Washer used in the cylinder head, valve train and combustion sealing assembly on the listed Volvo Penta engines. Controls axial movement and provides a replaceable thrust-bearing surface between adjoining components.

⚙️ Key Features

• Genuine Volvo Penta Valve-Train Thrust Washer

• Direct service replacement for part number 20840807

• Designed for the cylinder head, valve train and combustion sealing assembly

• Controls axial movement and provides a replaceable thrust-bearing surface between adjoining components

• Catalogued for TAD650VE; TAD660VE; D6E

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20840807 (Volvo Penta OEM reference)

OEM / Related Numbers:

• VOE20840807 - Volvo Construction Equipment prefixed number format

• 20792103 - snap ring

• 3884937 - cylinder-head kit

• 20798699 - inlet valve

• 20798533 - exhaust valve

• 20459857 - valve cotter

• 20459855 - valve-stem seal

• 20799076 - tappet

• 20849976 - intake valve seat

• 20849979 - exhaust valve insert

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D6E/TAD650/TAD660 cylinder-head and valve-train installations

Typically suits:

• Engine models:

• TAD650VE

• TAD660VE

• D6E

• HP Range: Approximately 180HP - 250HP

• Engine Type: 6-litre six-cylinder turbocharged diesel

• Year Range: Approximately 2004 - 2015

🔌 Function

Controls axial movement and provides a replaceable thrust-bearing surface between adjoining components.

Common signs of failure:

• Low compression, abnormal combustion or cylinder imbalance

• Knocking, tapping or abnormal valve-train noise

• Excessive oil consumption, blow-by or exhaust smoke

• Out-of-spec clearance, wear, scoring or heat damage during overhaul

• Loss of power or metallic debris found in the lubricating oil

Service / Installation Notes:

• Measure all mating parts and clearances against the exact engine specification rather than replacing the component by appearance alone.

• Use clean engine-assembly practices, correct lubricants and the specified tightening sequence.

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging