3861840 Stud | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta stud 88 mm long, from the Marine Propulsion group, weighing 68 grams and listed for 7 applications on the TSK series. The shorter 74 mm stud is catalogued separately as 3861841 for the same 7 applications, so length is what decides the order.

🚤 Compatibility

Typically suits:

• Volvo Penta TSK XXP-A
• Volvo Penta TSK XXP-ALT
• Volvo Penta TSK XXP-D3
• Volvo Penta TSK X-B
• Volvo Penta TSK X-BLT
• Volvo Penta TSK XHP-B
• Volvo Penta TSK XHP-BLT

• Engine Family: TSK

⚙️ Key Features

• 88 mm long
• 68 grams
• 7 applications on the TSK series
• Longer partner to the 74 mm stud 3861841

🔌 Function

Provides a fixed threaded post that a component is located over and clamped down onto with a nut.

⚠️ Common Signs of Failure

• Stud pulled out of its threaded boss with the nut still tight
• Thread stretched or necked where the nut sits
• Corrosion seizing the nut so the stud twists out on removal
• Stud snapped flush with the casting face
• Component sitting proud because the wrong length stud was fitted

🛠️ Service Notes

• The 88 mm and 74 mm studs share the same 7 applications — measure the old stud before ordering
• Wind the stud in to the specified depth and never rely on the nut to pull it home

📦 Condition

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