959800 Hexagon Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hexagon screw 178 mm long, published at 0.100 kg and listed for 24 applications across the TMD, MD, TAMD, TAD and TD series. It is the longest of the length-marked hexagon screws in this run and the only one at 178 mm, so the length identifies it without further checking.

🚤 Compatibility

• Engine Family: TMD, MD, TAMD, TAD, TD

Full model list at the end of this description.

⚙️ Key Features

• 178 mm long
• 0.100 kg
• 24 applications across five engine series
• The longest and only 178 mm screw in this run
• L=178mm (Volvo assembly listing)

🔌 Function

Clamps a joint together, drawing the two parts up tight as the hexagon head is torqued down.

⚠️ Common Signs of Failure

• Screw found loose and the joint working
• Head flats rounded
• Threads stretched or stripped
• Corrosion seizing a long screw in its thread
• Screw bent or snapped on removal

🛠️ Service Notes

• Unique at 178 mm in this run, so the length is enough to identify it
• Long screws corrode into their threads - soak and ease them out rather than forcing

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD122A, TAMD122A/C, TAMD122D, TAMD122P-A
• Volvo Penta TD120AHC, TD120ARC, TD120BHC, TD120BRC
• Volvo Penta TAD120AHC, TAD120BHC, TAD120CHC
• Volvo Penta TAMD120A, TAMD120B
• Volvo Penta TD121CHC, TD121CRC
• Volvo Penta TMD120A, TMD120B
• Volvo Penta MD120A
• Volvo Penta TAD121CHC
• Volvo Penta TAMD103A
• Volvo Penta TAMD121D
• Volvo Penta TMD102A
• Volvo Penta TMD121C
• Volvo Penta TMD122A