20521400 Piston Pin | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Piston Pin - Part Number: 20521400

This genuine Volvo Penta piston pin is an OEM service component used in the Piston / Connecting-Rod Piston Pin. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta 16-litre TAD16/TWD16 and shared Volvo D16 diesel application. Technical identification: Fully floating piston pin joining the piston to the connecting-rod small end; supplied as an individual pin and also used in Volvo 40005838 overhaul-kit configurations. In service, it forms the articulated connection between the piston and connecting rod while carrying alternating combustion and inertia loads. Selection must be confirmed by OEM part number 20521400, the exact model/product number, serial number and installed assembly configuration.

⚙️ Key Features

• Genuine Volvo Penta OEM piston pin

• OEM part number 20521400

• Documented application: Piston / Connecting-Rod Piston Pin

• Validated engine/application family: Volvo Penta 16-litre TAD16/TWD16 and shared Volvo D16 diesel

• Technical distinction: Fully floating piston pin joining the piston to the connecting-rod small end; supplied as an individual pin and also used in Volvo 40005838 overhaul-kit configurations

• Primary function: Forms the articulated connection between the piston and connecting rod while carrying alternating combustion and inertia loads.

• Measure pin, piston-bore and connecting-rod clearances, lubricate during assembly and renew retaining components where required.

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20521400 (current/original OEM service reference)

OEM / Related Numbers:

• 20521400

Matched Service / Assembly Components:

• 40005838 overhaul kit (includes piston pin 20521400)

Aftermarket / Verified Equivalents:

• SRP: PP-21400

🚤 Compatibility

Commonly used on:

• Piston / Connecting-Rod Piston Pin

Typically suits:

• Engine / product models:

• TAD1640GE

• TAD1641GE

• TAD1642GE

• TAD1643VE

• TAD1650GE

• TAD1650VE

• TAD1660VE

• TAD1661VE

• TWD1652GE

• Engine / Application Family: Volvo Penta 16-litre TAD16/TWD16 and shared Volvo D16 diesel

• Serial / Configuration Note: Confirm piston part number/class, connecting-rod version, pin diameter and engine serial number before installation.

🔌 Function

Forms the articulated connection between the piston and connecting rod while carrying alternating combustion and inertia loads. Measure pin, piston-bore and connecting-rod clearances, lubricate during assembly and renew retaining components where required.

Common signs of failure:

• Piston slap or metallic knocking that changes with load

• Excessive pin-to-bore or small-end clearance

• Scoring, heat discolouration or material transfer on the pin

• Metal particles in the oil or accelerated piston/rod wear

• Cracked piston boss or connecting-rod small-end damage

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging