MAN Crankshaft vibration damper 51022010081

About this part

Genuine MAN torsional vibration damper for the D2866 E, the 11.97-litre in-line six. Every firing stroke twists the crankshaft slightly and lets it spring back, and at certain engine speeds those twists reinforce each other into a resonance the shaft has no way to shed on its own. The damper is what absorbs it: a mass coupled to the crankshaft nose through a rubber or viscous element that converts the oscillation into heat instead of letting it build. Because the element works by deforming, it is consumed by the job — heat and years harden it, and its damping falls away gradually rather than stopping at an identifiable moment. That is the awkward part in service, because a damper that has quietly stopped damping looks exactly like one that still works. Treat it as a scheduled item tied to major engine work rather than something to replace on symptoms.

Supplied new, in the manufacturer’s packaging, with our warranty of up to 24 months.

Engines this part fits