G. C. F is a professional manufacturer for engine parts in Taiwan. We are mainly expert on Japanese heavy duty equipment and truck's engine parts, like Liners, Pistons, and Liner kit. Especially for KQMATSU bulldozer, excavator engine parts, we can supply all kinds of engine models, like S6D110, S6D125, S6D140, S6D155, S6D170, NT855, NH220. In normal and regular maintenance without people's neglect, our Liner Kit can give you 1 year warranty. Our liner kit includes 6 liners, 6 pistons, 6 piston pins, 6 cylinders' piston rings (RIK brand) , 6 bushings, clips, liner orings, for example S6D155 liner kit / set (piston: 6127-31-2140) . Therefore, our durable and reliable engine parts can meet your standard and requirements, and we also give you competitive price and prompt delivery. You can start samll order for testing our quality. We have confidence you will be satisfied our products. Any questions don't hesitate to contact us at any time.