21087705 V-Belt | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta V-Belt - Part Number: 21087705

A genuine Volvo Penta V-belt for the TAD732GE/TAD733GE radiator fan-drive system using pulley 21087704. The belt has the correct section, effective length and construction for the original fan bracket, circulation pump and tensioner layout. Belt selection must be made by part number because changes to the fan bracket and tensioner occur across engine serial ranges.

⚙️ Key Features

• Correct V-section and effective length for the D7 generator fan drive

• Matched to pulley 21087704 and the original fan-bracket geometry

• Heat- and fatigue-resistant construction for continuous generator operation

• Maintains positive fan and coolant-pump drive under changing load

• Serial-controlled tensioner and bracket configuration must be checked before fitting

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21087705 (current OEM reference for the specified fan-drive arrangement)

OEM / Related Numbers:

• 21087705

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

Assembly / Service Components:

• 21087704 - matching drive pulley

• 20450758 / 21142055 - serial-controlled belt tensioners

• 20450764 - additional tensioner in the drive arrangement

• 20450755 - fan hub

• 21034351 - pusher-type cooling fan

🚤 Compatibility

Commonly used on:

• D7-series generator diesel radiator fan drive

Typically suits:

• Engine models:

• TAD732GE

• TAD733GE

• HP Range: Generator rating dependent; belt specification is determined by pulley and fan-bracket configuration

• Engine Type: D7-series generator diesel radiator fan drive

• Year / Serial Range: Confirm engine serial number and fan-bracket/radiator arrangement before ordering

🔌 Function

Transmits crankshaft or accessory-drive power to the radiator fan and associated cooling components, maintaining the airflow required for stable engine temperature under generator load.

Common signs of failure:

• Cracks, glazing or sidewall wear

• Belt squeal during starting or load changes

• Excessive belt dust around the fan bracket

• Fan speed reduction or engine overheating

• Repeated belt throw caused by pulley or tensioner misalignment

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging