The Shantui idler assembly 10Y-40-03000 is listed for SD16 and SD23 bulldozers. Confirm the machine serial and undercarriage version before ordering because the model name alone may not identify every production configuration.
Check the track-frame position
Use the parts diagram to confirm the idler location and assembly reference. Compare the installed unit’s mounting, shaft and track-guiding surfaces with the catalogue illustration. Inspect the track frame and track alignment for wear that could have contributed to uneven contact. Request confirmation of the full assembly contents; this page does not list dimensions or included hardware.
Service and fitment checks
Follow the machine manual for safe track release, lifting and idler removal. Check the new assembly for handling damage and fit it using the specified fasteners and alignment procedure. Adjust track tension only by the manufacturer’s method. If the old idler showed unusual wear, inspect adjacent rollers and the track system before returning the machine to work.
For a separately listed undercarriage item, see the 16Y-40-09000 track roller; the two parts have distinct functions and references.
Questions buyers ask
Which models are listed?
The record names Shantui SD16 and SD23. Confirm the serial and undercarriage version.
Are dimensions supplied?
No dimensions are shown. Request verified data if needed for comparison.
Should neighboring undercarriage parts be inspected?
Yes. Check track alignment and adjacent components during idler service.
