21246651 Hexagon Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine fastener used in the governor and mechanical fuel-regulation assembly of Volvo Penta D1 and D2 compact diesel engines.

🚤 Compatibility

Typically suits:

• Volvo Penta D2-40F
• Volvo Penta D1-30F
• Volvo Penta D1-13F
• Volvo Penta D1-20F

• Engine Family: D
• HP Range: 13-40 HP

⚙️ Key Features

• Genuine Volvo Penta governor-system screw
• Correct OEM thread and length
• Maintains fuel-control linkage alignment
• Suitable for calibrated mechanical assemblies
• Designed to resist loosening from engine vibration
• 4 used per assembly

🔌 Function

The screw secures a governor or fuel-control component so that throttle movement and engine-speed regulation remain correctly aligned.

⚠️ Common Signs of Failure

• Loose governor linkage
• Worn or polished shank
• Fastener unable to retain the required adjustment

🛠️ Service Notes

• Check the length, thread and strength grade of the replacement against the screw you removed — engine fasteners are chosen for a specific clamp load, and a longer or softer screw is not a substitute
• Clean the threads in the component and make sure the mating faces are clean and flat before assembly; dirt, paint or old sealant in a joint feels like tightness and leaves the joint loose
• Tighten to the torque figure and the tightening sequence given in the workshop manual for your engine, working up progressively rather than pulling each screw down in one go
• Use thread locking or sealing compound only where the manual calls for it, and renew the locking washer, tab washer or nut that works with the screw
• Renew rather than reuse screws that are corroded, thread-damaged or visibly stretched, and any screw the manual tightens by torque-plus-angle

📦 Condition

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