Piston ring set GY6 4T 150cc 57,00mm

Piston ring set for a GY6 4T 150 cm³ engine, 57.00 mm diameter. The figure is taken from the name.

• Piston rings seal the combustion chamber and scrape oil off the cylinder wall; once worn they let pressure through – compression drops, oil consumption rises and blue smoke comes out of the exhaust
• The diameter is taken from the name: there is no number on the rings themselves or in the photo
• The photo shows five rings: two compression rings, a copper-coloured spring expander and two thin oil scraper rings – that is the make-up of a 4T engine set
• The photo on this card is shared across five GY6 4T cards – from 50 cm³ to 150 cm³ – so we do not decide the diameter from it and do not describe the look from it either
• The same GY6 4T line in the listing: 50 cm³ 39.00 mm, 60 cm³ 44.00 mm, 80 cm³ 47.00 mm, 125 cm³ 52.40 mm and 150 cm³ 57.00 mm – choose by your cylinder bore, not by the displacement
• Note: the 150 cm³ piston in the listing has a different diameter – "Piston with rings GY6 4T 150cc 57,40mm", so 57.40, while these rings are named 57.00. We do not hide the difference and do not pick a side – measure your cylinder bore
• Rings alone are needed when the piston is still sound – if it is worn too, take the piston with rings: it is sold with matching rings in one set
• You will recognise a worn ring by too large a gap at the joint and by it falling freely in the cylinder; all the rings in the set are replaced at once, not one by one
• Supplier code MC 03705 AT 150QE0708C – quote it again when ordering

To be straight with you. Why the rings for the same 150 cm³ engine are named 57.00 mm while the piston is 57.40 mm, the maker did not explain. Which specific model and which years they are 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 height of the old ring – or send a photo with callipers: we will check it before you order.

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