Common 4000 flexplate version flywheel used is X52725500008 (supersedes - 5242500401) - to order the flexplate only component of this flywheel assembly can use X52725500007 (MTU# - Supersedes 5272530021 & 5141806) previously common with 4011206 (Terex#) but may need further verification with latest supersession changes.
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 ...
Please see below and attached details for Geislinger isolated Flywheel installation tensions. Please also ensure following - - if replacing steel flexplate ensure alternator suits and has clearance for this coupling version. - if replacing steel ...
MTU indicate Grounding brush devices is not required when isolated flexplate / coupling X52725500009 is in use. Some customer may request to still run the grounding device brushes as optional extra when X52725500009 Geislinger isolated coupling is in ...