20459034 Screw | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta screw used in the starter, charging or belt-drive electrical assembly. It is supplied as an individual service component under part number 20459034 and is intended to restore the original fit, alignment, sealing, support or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in an parts list for your engine are serviced separately unless explicitly stated.

⚙️ Key Features

• Screw with the correct Volvo Penta thread, length and head design for the starter, charging or belt-drive electrical assembly
• 0.03 kg
• Alternator, Charging, Electric Motor, Electric Drives group
• No engine fitment list is published against it, so order by part number 20459034 and confirm the model and serial number

🔌 Function

Secures the specified component using the correct Volvo Penta thread, length and head design.

⚠️ Common Signs of Failure

• Screw found loose or missing at its mounting
• Component it secures shifting or rattling under vibration
• Head corroded or the drive rounded out
• Thread seized or galled, shearing on removal
• Screw found bent or stretched on inspection

🛠️ 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

📦 Condition

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