20711881 Screw | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta component listed in the TAD722GE auxiliary/alternator parts arrangement. It secures the documented alternator or auxiliary bracket; the exact mounting position must be confirmed against the complete TAD722GE serial-specific parts list for your engine.

🚤 Compatibility

Typically suits:

• Volvo Penta TD720GE
• Volvo Penta TD520GE
• Volvo Penta TAD720GE
• Volvo Penta TAD721GE
• Volvo Penta TAD722GE
• Volvo Penta TAD730GE MECH
• Volvo Penta TAD730GE EDC4
• Volvo Penta TAD731GE MECH
• Volvo Penta TAD731GE EDC4
• Volvo Penta TAD732GE EDC4
• Volvo Penta TAD733GE EDC4
• Volvo Penta TAD520GE
• Volvo Penta TAD530GE MECH
• Volvo Penta TAD530GE EDC4
• Volvo Penta TAD531GE MECH
• Volvo Penta TAD531GE EDC4
• Volvo Penta TAD532GE EDC4

• Engine Family: TD, TAD

⚙️ Key Features

• Confirmed in a TAD722GE engine-parts catalogue
• Designed for the associated auxiliary or alternator mounting arrangement
• Maintains the specified component alignment under vibration
• Uses the exact Volvo Penta mounting geometry for its schematic position
• Must be installed with the matching bracket, fasteners and spacers
• Serial-number confirmation is required before ordering

🔌 Function

Supports and secures the assigned auxiliary or alternator mounting component.

⚠️ Common Signs of Failure

• The bracket or screw is bent, cracked or corroded
• Mounting holes or threads are damaged
• The alternator or auxiliary component moves excessively
• Belt or component alignment becomes incorrect
• Replacement is required after fatigue or mounting failure

🛠️ Service Notes

• Clean the threads in the casting and check them for damage before fitting; a screw run into a dirty or pulled thread gives a false torque reading and will not hold its load
• Tighten to the torque given in the workshop manual for your engine rather than by feel, and follow the specified sequence where the joint has one
• Use the thread locking or sealing compound the manual calls for at that joint — some screws pass into oil, coolant or fuel space and have to seal as well as clamp
• Renew any screw that is stretched, corroded in the shank, or has damaged threads or a rounded head, and never reuse one that was tightened by a stretch or angle-tighten procedure
• A little marine-grade anti-seize helps later removal where the manual permits it, but keep it off threads that are meant to take a locking compound

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20584337 - Related 28V 35A alternator for separate fan-bracket configuration
• 20711850 - Related bracket

📦 Condition

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