21534912 Vibration Damper | Genuine Volvo Penta Part

🔧 Product Description

Front crankshaft torsional damper for Volvo Penta D8 marine and industrial engines. Its bonded inertia ring absorbs crankshaft twist and resonance generated by cylinder firing pulses, protecting the crankshaft, timing gears and accessory drive from damaging vibration.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD840GE
• Volvo Penta TAD841-43GE
• Volvo Penta D8A2-A MP
• Volvo Penta TAD853VE
• Volvo Penta TAD851-53GE
• Volvo Penta D8A5-A MH
• Volvo Penta D8A6-A MH
• Volvo Penta D8A5-A MG
• Volvo Penta D8A6-A MG
• Volvo Penta TAD880-84VE
• Volvo Penta D8A4-A MP
• Volvo Penta D8A1-A MP
• Volvo Penta TAD840-43VE
• Volvo Penta TAD850-52VE
• Volvo Penta TAD870-73VE
• Volvo Penta D8A3-A MP
• Volvo Penta TAD840GE-B
• Volvo Penta TADH880-84VE

• Engine Family: TAD, D, TADH

⚙️ Key Features

• Genuine Volvo Penta crankshaft torsional damper
• Designed for D8 marine and TAD8 industrial engines
• Bonded inertia-ring construction
• Reduces crankshaft resonance and accessory-drive vibration
• Balanced factory component for the specified engine family
• Engine type: 7.7-litre inline-six turbocharged diesel
• Quantity varies by assembly, most commonly one

🔌 Function

Absorbs torsional crankshaft vibration and resonance to protect the rotating assembly and front gear/accessory drive.

⚠️ Common Signs of Failure

• Cracked, bulging or separated bonded rubber
• Outer ring shifted from its original position
• Rattle or vibration at specific engine speeds
• Visible pulley wobble or belt vibration
• Damaged crankshaft, timing gear or accessory components caused by uncontrolled harmonics

🛠️ 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

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• VOE21534912

📦 Condition

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