20405577 Piston Pin | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Gudgeon / Piston Pin - Part Number: 20405577

Genuine Volvo Penta fully floating piston pin used to connect each piston to its connecting rod on the D5/D7 industrial engine family. Four pins are used on four-cylinder engines and six on six-cylinder engines, with two retaining snap rings per pin.

⚙️ Key Features

• Hardened precision-ground piston pin

• Four used on D5 four-cylinder engines and six on D7 six-cylinder engines

• Works with piston, connecting rod and snap rings 20405576

• Must be checked for diameter, ovality and surface scoring

• Piston and connecting-rod small-end clearances must meet the workshop specification

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20405577 - current Volvo Penta piston-pin reference

OEM / Related Numbers:

• 20405576 - retaining snap rings

• 20412762 - cylinder-liner O-rings

• 20585982 - related connecting rod

• 3843536 - related cylinder-liner kit

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D5/D7 crank mechanisms

Typically suits:

• Engine / equipment models:

• TD520GE

• TAD530GE

• TAD531GE

• TAD532GE

• TD720GE

• TAD730GE

• TAD731GE

• TAD732GE

• TAD733GE

• Engine Type: Volvo Penta four- and six-cylinder industrial diesel

• Year / Serial Range: Piston and connecting-rod design dependent; confirm the complete engine serial number

🔌 Function

Provides the articulated bearing connection between the piston and connecting rod while transmitting combustion load.

Common signs of failure:

• Piston-pin knock

• Scoring, blueing or material transfer

• Excessive small-end or piston-bore clearance

• Cracked or displaced retaining snap ring

• Metallic debris during engine overhaul

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging