20459931 Washer | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Washer - Part Number: 20459931

A genuine Volvo Penta washer used in the engine fastener load-distribution or spacing position. It is supplied as an individual service component under part number 20459931 and is intended to restore the original fit, sealing, alignment, retention or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in the engine diagram are serviced separately unless explicitly stated.

⚙️ Key Features

• Genuine Volvo Penta service component

• Designed for the engine fastener load-distribution or spacing position

• Correct OEM thread, length and clamping geometry for the specified position

• Suitable for maintenance, repair or overhaul of the matching engine assembly

• Exact engine and serial-number confirmation is recommended before installation

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20459931 - Current genuine Volvo Penta service reference

OEM / Related Numbers:

• 20459931 - Current genuine Volvo Penta service reference

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D5A-B TA industrial diesel engines

• Related D5A crankshaft, flywheel and engine-electrical installations

Typically suits:

• Engine models:

• D5A-B TA

• D5A-T

• D5A-TA

• Engine Type: Volvo Penta D5 inline-four industrial diesel

• HP Range: Determined by the exact D5A engine rating

• Year Range: Engine-generation and serial-number controlled

• Serial Applicability: D5A-B TA is the confirmed application; verify the crankshaft or electrical configuration on D5A-T and D5A-TA

🔌 Function

Distributes fastener load, protects the mating surface and maintains the intended spacing.

Common signs of failure or reasons for replacement:

• The washer is cupped, cracked, corroded or missing

• The bearing surface is worn or uneven

• The fastener pulls into or damages the mating surface

• The assembled spacing or clamping stack becomes incorrect

• Replacement is required after deformation or incorrect installation

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging