Piston with rings GY6 4T 150cc 57,40mm

Piston with rings for a GY6 4T 150 cm³ engine, 57.40 mm diameter. The second photo marks 57 mm – the name's figure is rounded there.

• The piston with rings is replaced together with the cylinder or after it is bored: once worn it loses its seal, compression drops, cold-engine rattling appears and oil consumption rises
• The second photo marks: diameter 57 mm, overall height 48 mm and gudgeon pin bore Ø 15 mm; the first photo has no figures
• The photo shows the set: piston, gudgeon pin, five rings – one of them a toothed expander – and two circlips
• The first photo on this card matches the GY6 4T 125 cm³ 52.40 mm card byte for byte – so we do not describe the look from it; this item's own photo is the second one
• You will find the rings alone for the same engine listed separately – "Piston ring set GY6 4T 150cc 57,00mm"
• Note: the ring set of the same 150 cm³ line is named with a different diameter in the listing – "Piston ring set GY6 4T 150cc 57,00mm", so 57.00, while this piston is named 57.40. We do not hide the difference and do not pick a side
• The photo itself has no scale: no ruler, no object placed for comparison. Only the figures written in the captions give the size, so measure your cylinder bore
• You will recognise a worn piston by a rubbed-smooth side, too large a gap in the rings and impressed marks around the gudgeon pin bore; the rings are always replaced together with the piston

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

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