20779142 Hex Socket Screw | Genuine Volvo Penta Part

🔧 Product Description

Application-specific hex. socket screw used in the engine block, accessory drive and service assembly on the listed Volvo Penta engines. Provides the application-specific internal-hex fastener for the engine-block or accessory-drive assembly.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD880-84VE
• Volvo Penta TAD580-83VE
• Volvo Penta TAD570-72VE
• Volvo Penta TAD570-71VE-B
• Volvo Penta TAD870-73VE
• Volvo Penta TADH880-84VE

• Engine Family: TAD, TADH
• HP Range: Approximately 170-300 HP
• Year Range: Approximately 2003 - 2015

⚙️ Key Features

• Genuine Volvo Penta hex. socket screw
• Designed for the engine block, accessory drive and service assembly
• Provides the application-specific internal-hex fastener for the engine-block or accessory-drive assembly
• Engine type: Four- and six-cylinder turbocharged industrial diesel
• 4 used per assembly

🔌 Function

Provides the application-specific internal-hex fastener for the engine-block or accessory-drive assembly.

⚠️ Common Signs of Failure

• Fastener found loose, backed off or missing at the accessory-drive joint
• Rattle or knock from the mounting under vibration
• Rust or oil staining tracking out from under the screw head
• On removal the socket is rounded out or the head has corroded solid
• A stretched shank or damaged threads in the block

🛠️ Service Notes

• Confirm thread, length, strength grade and any single-use restriction.
• Use the specified torque, angle and locking method on clean threads.

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20460004 - cylinder block
• 20791246 - crankcase references
• 21009706 - crankcase references
• 22037735 - crankcase references
• 22425892 - crankcase references
• 20460006 - main fastener
• 20460001 - block bushing
• 20405716 - plugs
• 20405718 - plugs
• 20405584 - guide sleeve
• 969011 - gasket
• 20791446 - related sealing kit
• 20555182 - accessory-drive gears
• 20940389 - accessory-drive gears

Other-Brand OEM Numbers

• VOE20779142 - Volvo Construction Equipment prefixed number format

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging