A piston number is only useful when the bore and piston configuration agree. This Shangchai listing identifies D05-101-41, but does not state an engine serial range, size group or dimensions. Confirm those details from the engine plate and the original piston markings.

Compare the piston where it matters

Set the old and replacement parts side by side. Check crown shape, combustion bowl or recess if present, skirt profile, pin-bore position and ring-groove count. Record any grade marks and cylinder location. Compare bore and piston measurements using the service method for the exact D05 engine; a visual match does not prove the running clearance.

If the old piston failed, photograph the damage before cleaning. Scuffing, broken ring lands or crown damage can point to a problem elsewhere in the engine. Inspect the cylinder, rings, lubrication and cooling conditions as part of the diagnosis. Replacing the piston without finding the cause can lead to another failure.

Order with the cylinder record

Provide the engine model and serial, cylinder position and measured bore data. Confirm whether the piston is supplied with a pin or rings; this listing does not say. The related Shangchai piston-pin listing has its own fitment check and is not automatically matched to D05-101-41.

Common questions

Does D05-101-41 identify the bore size?

This page does not state a size group. Check the engine records and original markings.

Are rings and a pin included?

Package contents are not listed. Confirm them before ordering.

What should be checked after piston damage?

Inspect the bore and related lubrication or cooling conditions using the overhaul procedure.