21289127 Screw | Genuine Volvo Penta Part

🔧 Product Description

A factory-specified retaining screw used with sensor bracket 21289126. Its thread, length and head profile are matched to the designated mounting position.

🚤 Compatibility

Typically suits:

• Volvo Penta 3.0GXiC-J
• Volvo Penta 3.0GXi-J

⚙️ Key Features

• Used with sensor and bracket assembly 21289125/21289126
• Correct thread length and head profile
• Separate specification from screw 21289128
• Engine type: Volvo Penta marine or industrial application

🔌 Function

Secures the designated section of the sensor bracket at the required clamping load.

⚠️ Common Signs of Failure

• Damaged or stripped thread
• Screw repeatedly loosens
• Corrosion around the head
• Incorrect sensor alignment
• Broken screw during removal

🛠️ 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

• 21289125 - sensor
• 21289126 - bracket
• 21289128 - separately sized mounting screw

📦 Condition

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