21766558 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

Flanged engine fastener manufactured to the Volvo Penta strength, thread and length specification. The integral flange spreads clamp load without a separate washer.

🚤 Compatibility

Typically suits:

• Volvo Penta V8-380-CE-A
• Volvo Penta V8-380-C-B
• Volvo Penta V8-380-CE-B
• Volvo Penta V8-380-C-D
• Volvo Penta V8-380-CE-D
• Volvo Penta V8-430-CE-D
• Volvo Penta V8-350-C-D
• Volvo Penta V8-350-CE-D
• Volvo Penta V8-380-C-A

• Engine Family: V
• HP Range: 350-430 HP

⚙️ Key Features

• Genuine Volvo Penta flange screw
• Factory thread, length and strength class
• Integral load-spreading flange
• Correct coating for the application
• Use the specified torque and replacement rule
• 4 used per assembly

🔌 Function

Clamps the connected components with the specified preload.

⚠️ Common Signs of Failure

• Stretched or damaged threads
• Use after a torque-to-yield procedure

🛠️ Service Notes

• The integral flange spreads the load and forms the bearing face, so do not add a separate washer unless the workshop manual for your engine specifically calls for one
• Clean the threads and the seating face before fitting — grit, paint or old sealant under the flange gives a false torque reading and the joint will slacken off in service
• Where the flange is serrated it must bear directly on clean metal to grip; discard any screw with a deformed flange or damaged serrations rather than reusing it
• Tighten to the torque and sequence given in the workshop manual for your engine, and treat the screw as single-use where the manual specifies an angle-tightened or stretch fastener
• Check the thread in the receiving component at the same time; a pulled or corroded thread will not hold a new screw however carefully it is torqued

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• VOE21766558

📦 Condition

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