20565408 Vibration Damper | Genuine Volvo Penta Part

🔧 Product Description

A genuine crankshaft vibration damper for D16 industrial engines including TAD1640-1642VE-C applications. It reduces torsional oscillation across the crankshaft and gear train.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1640VE-B
• Volvo Penta TAD1641VE-B
• Volvo Penta TAD1642VE-B
• Volvo Penta TAD1641VE
• Volvo Penta TAD1642VE
• Volvo Penta TAD1643VE
• Volvo Penta TAD1660-62VE
• Volvo Penta TAD1662VE EU5
• Volvo Penta TAD1640-42VE-C

• Engine Family: TAD

⚙️ Key Features

• Tuned inertia and elastomer assembly reduces crankshaft torsional oscillation
• Matched to the crankshaft, flywheel and accessory-drive configuration
• Protects the gear train, bearings, crankshaft nose and belt-driven auxiliaries
• Factory balance and hub alignment are critical to engine smoothness
• Inspect the rubber element, inertia-ring position and run-out during service
• Use the correct retaining fasteners and tightening procedure
• Engine type: Volvo Penta D16 inline-six industrial diesel

🔌 Function

Reduces torsional vibration transmitted through the crankshaft or rotating assembly.

⚠️ Common Signs of Failure

• The rubber element is cracked, swollen or separating
• The outer inertia ring shifts or runs out of true
• Crankshaft or belt-drive vibration increases
• Timing marks no longer align with the hub
• Gear-train or accessory-drive noise appears at specific engine speeds

🛠️ 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

OEM Supersession Chain

• 20565408 → Supersedes 20485965

OEM / Related Numbers

• 20485965 earlier number superseded by this part
• 20565204 - Related Gasket
• 20565843 - Related Lock Brace
• 20565188 - Related Bearing
• 20565150 - Related Bearing
• 8131247 - Crankshaft references
• 22235130 - Crankshaft references
• 270929 - Thrust-washer kits
• 270930 - Thrust-washer kits
• 270931 - Thrust-washer kits
• 270932 - Thrust-washer kits
• 20578851 - Related main-bearing kits
• 20586596 - Related main-bearing kits
• 20700881 - Related main-bearing kits
• 20578853 - Additional main-bearing-kit references
• 20700890 - Additional main-bearing-kit references
• 20700891 - Additional main-bearing-kit references
• 21254035 - Cylinder-liner kit
• 20737361 - Cylinder liner
• 20520607 - Sealing-ring kits
• 22179684 - Sealing-ring kits
• 20737366 - Piston pin
• 20898595 - Connecting-rod references
• 21527863 - Connecting-rod references
• 21535917 - Connecting-rod references

Aftermarket / Verified Equivalents

• SRP: VD-65408

📦 Condition

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