X52725500008 is a correct like for like supersession to original 5242500401 of the steel version flexplated flywheel assemblies – the only difference between them is the actual steel flexplate center sections has changed part numbers from 5141806 to ...
X52725500009 is the newer version Geislinger isolated flexplate / coupling design that Hitachi have in place of the typical steel version of X52725500008 or 5242500401 as new truck supply. Note if an existing unit is updating / installing this later ...
G’day Jim, Following on your official request of Technical support to review suitability of applying TSD 20-08 to current Komatsu repowering fleets I can confirm comparison of key hardware between our current factory engine supplied ...