21251266 Vibration Damper | Genuine Volvo Penta Part

🔧 Product Description

Genuine torsional vibration damper designed to absorb crankshaft oscillations in the specified Volvo Penta diesel-engine installation.

⚙️ Key Features

• Genuine Volvo Penta torsional damper
• Reduces crankshaft vibration
• Protects the gear train and accessory drive
• Precision-balanced assembly
• Designed for the specified crankshaft and engine configuration

🔌 Function

The damper absorbs torsional pulses created by combustion, reducing stress in the crankshaft, gear train and accessory drive.

⚠️ Common Signs of Failure

• Visible cracking in the elastomer
• Outer ring movement
• Engine vibration at specific speeds
• Belt misalignment
• Rattling from the front of the engine
• Timing marks shifting from their correct position

🛠️ Service Notes

• Treat the damper as a sealed assembly — it is not repairable, and nothing about it should be straightened, re-bonded or adjusted
• Renew it if the rubber is cracked, swollen, oil-soaked or has moved relative to the hub, and whenever the engine has been run with a known torsional or vibration problem
• Fit to clean, dry, undamaged mating faces, tightening the fasteners in the sequence and to the figures given in the workshop manual for your engine
• Use new bolts wherever the manual calls for them; the loading here is cyclic and a reused or stretched fastener is a poor risk
• While access is good, check the components it drives or couples to, and their alignment — a damper rarely fails for no reason

📦 Condition

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