Piston with rings 52,40mm 13mm pin

Piston with rings, 52,40 mm diameter. When choosing, the two most important figures are the cylinder bore and the pin diameter – 13 mm.

• The piston with rings is replaced together with the cylinder or after it is honed: worn, it loses its seal, compression drops, cold-engine rattle appears and oil consumption rises
• The photo marks: diameter 52 mm, 12 mm from the crown to the pin axis, overall height 40 mm, pin diameter 13 mm, pin length 43 mm
• The photo shows a set: piston, pin, five rings – including one toothed expander – and two circlips
• The name gives the diameter more precisely, while the drawing rounds it to a whole number; this is not a contradiction, just two ways of writing the same size
• The photo itself has no scale: no ruler and no object placed for comparison. Only the figures written in the callouts give the size, so measure your own cylinder bore
• If the piston is still sound but compression is dropping, the rings alone may be enough: rings of the same 52,40 mm diameter are in the listing – "Piston ring set GY6 4T 125cc 52,40mm" – but that is a different kit, from the GY6 4T line; whether it fits your engine, the maker did not write – write us your model, we will check
• A worn piston is recognised by a scuffed side, too large a gap in the rings and imprinted marks at the pin bore; the rings are always replaced together with the piston
• Supplier codes MC 02687 · MI 4964 – quote them again when ordering

To be straight with you: which specific model and which years it fits, the maker did not write, and we do not guess it – write us your model and year. Before ordering, measure your own cylinder bore and the old pin's diameter – or send us a photo with calipers: we will check it before you order.

24-month warranty · tel. +370 685 777 56