21125136 Screw | Genuine Volvo Penta Part

🔧 Product Description

An application-specific Volvo Penta fastener used at the exact parts list for your engine position assigned to part 21125136. Its thread, grip length, head form and material grade are selected for the joint load and surrounding clearance.

🚤 Compatibility

• HP Range: Approximately 225 HP

⚙️ Key Features

• Correct thread and grip length
• Specified strength grade
• Head geometry clears adjacent parts
• OEM surface treatment resists corrosion
• Use the prescribed torque and locking method
• Engine type: GM-based 4.3-litre V6 Volvo Penta gasoline marine engine

🔌 Function

Applies the specified clamp load to retain and align the connected components.

⚠️ Common Signs of Failure

• Loose fit or loss of alignment
• Leakage or chafing at adjoining parts

🛠️ 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