21939706 Thrust Washer Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D8 0.15mm Oversize Crankshaft Thrust Washer Kit - Part Number: 21939706

A genuine Volvo Penta 0.15mm oversize repair grade crankshaft thrust-washer set for D8 and related D5/D8 engine architecture.

The matched washers control crankshaft end float at the designated main-bearing position. Standard grades A and B are selective-fit parts; oversize grades are repair components and must only be installed after crankshaft and block measurements confirm the required thickness.

⚙️ Key Features

• Genuine Volvo Penta OEM crankshaft thrust-washer kit

• Correct Volvo Penta part number 21939706

• Machining / selection grade: 0.15mm oversize repair grade

• Matched thrust surfaces for one crankshaft location

• Selection must be based on measured crankshaft end float

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21939706 current Volvo Penta service reference

• VOE21939706 Volvo-formatted reference

OEM / Related Numbers:

• 21939706

• VOE21939706

• 21908099 standard grade A

• 21908101 standard grade B

• 21939706 0.15mm oversize

• 21939708 0.30mm oversize

Kit Contents:

• Matched crankshaft thrust-washer halves - supplied under kit number 21939706 - quantity 2

• Individual washer halves are not assigned separate Volvo service numbers and are supplied only as kit 21939706

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D8 crankshaft axial-clearance adjustment

• Bottom-end overhaul and measured crankshaft end-float correction

Typically suits:

• Engine / Drive models:

• D8A1-A MP

• D8A2-A MP

• D8A3-A MP

• D8A4-A MP

• D8A5-A MH

• D8A6-A MH

• D8A5-A MG

• D8A6-A MG

• TAD540VE

• TAD541VE

• TAD542VE

• TAD550VE

• TAD551VE

• TAD552VE

• TAD570VE

• TAD571VE

• TAD572VE

• TAD570VE-B

• TAD571VE-B

• TAD580VE

• TAD581VE

• TAD582VE

• TAD583VE

• TAD840GE

• TAD840GE-B

• TAD840VE

• TAD841VE

• TAD842VE

• TAD843VE

• TAD850VE

• TAD851VE

• TAD852VE

• TAD853VE

• TAD870VE

• TAD871VE

• TAD872VE

• TAD873VE

• TAD880GE

• TAD881GE

• TAD882GE

• TAD880VE

• TAD881VE

• TAD882VE

• TAD883VE

• TAD884VE

• Selection Notes:

• Grade letters and oversize measurements identify different thrust thicknesses, not quality levels.

• Do not mix washers from different kits.

• Confirm crankshaft end float with Volvo Penta workshop specifications before installation.

• HP Range: Application-dependent across D5/D8 industrial, marine and generating-set ratings

• Engine / Drive Type: Volvo Penta inline 4- or 6-cylinder D5/D8 diesel crankshaft assembly

• Year Range: Approximately mid-2000s onward; exact grade is determined by engine specification and measured end float

🔌 Function

The washers absorb forward and rearward crankshaft thrust loads and maintain the specified axial clearance. Correct clearance protects the crankshaft, main-bearing housing, gears and transmission coupling.

Common signs of failure or incorrect fitment:

• Crankshaft end float exceeds specification

• Clunk or movement when engine load direction changes

• Thrust faces worn, scored or heat-discoloured

• Crankshaft flange or main-bearing housing damaged

• Incorrect standard or repair grade selected without measurement

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging