MAN Nozzle holder combination 51101007407

About this part

Genuine MAN nozzle holder combination for the D2866 LE401. Where an engine has mechanical injection, the whole system is adjustable in a way modern common-rail equipment is not, and that cuts both ways. A competent diesel shop can restore a nozzle holder to specification by replacing the nozzle and resetting the opening pressure with shims, which makes reconditioning genuinely economic. The same adjustability means equipment can be left wrong by someone less careful, and a holder that has been "adjusted" to cure a symptom and not set to its figure is a common find on an older engine. Ask what the opening pressure was set to rather than whether the unit was serviced. A shop that answers with a number has done the work on a bench; one that answers with a description has not. The figure belongs in the engine's records alongside the date, since the next person chasing a rough-running cylinder will want to know what it started at.

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

Engines this part fits