20799122 V-Belt Pulley | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Crankshaft V-Belt Pulley with Integrated Vibration Damper - Part Number: 20799122

Rotating belt-drive component used in the tad650ve/tad660ve crankshaft front drive. It maintains the specified diameter, groove profile, offset and drive ratio for the connected accessory or cooling system.

Application note: The torsional vibration damper is integrated into the V-belt pulley assembly.

⚙️ Key Features

• Manufactured to the original Volvo Penta dimensional and material specification

• Maintains correct fit, alignment and service access in the designated assembly

• Designed for diesel-engine heat, vibration and operating-load exposure

• Direct replacement for a worn, damaged, missing or corroded original component

• Must be matched by part number, engine product and serial/configuration before installation

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20799122 (OEM catalogue reference)

OEM / Related Numbers:

• 20838068 crankshaft

• 20791253 crankshaft gear

• 20459144 inserts

• 20791429 flywheel companion flange

• 20850106 and 20850110 main-bearing references

• 20850116 and 20850122 thrust washers

• 20798025 connecting rod

• 20799647 piston bushing

• 20850096 and 20850097 big-end bearing kits

• 20799587 connecting-rod screws

• 20459155 air-conditioning pulley

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• TAD650VE/TAD660VE crankshaft front drive

Typically suits:

• Engine models:

• TAD650VE; TAD660VE

• HP Range: Approximately 220-260 HP, depending on rating

• Engine Type: 7 L six-cylinder common-rail industrial diesel

• Year Range: Approximately 2000s-2010s

🔌 Function

Transfers belt drive at the specified diameter and offset while maintaining correct belt tracking, accessory speed and alignment.

Common signs of failure:

• Visible wobble, runout or belt misalignment

• Worn, damaged or polished belt grooves

• Fretting, cracking or looseness at the hub/shaft interface

• Belt squeal, edge wear or repeated belt loss

• Abnormal bearing load or vibration in the driven assembly

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging