JXPARTS 86mm Bore Chinese 186 186F Diesel Engine Piston Kit for Yanmar L100 and Chinese 186F Diesel Engine Brand New Pison Kit Fit for Chinese 186F 86mm Bore Diesel Engine Generator Motor Total Piston Height is 78.8mm, please compare this size with yours. Including piston, piston pin, piston ring and circlip Ships from China, takes 7 to 15 days to arrive you. After shipment is made, Amazon may send an email saying it take 3 to 4 weeks to arrive you. Please disregard this time frame, it is a default time frame by Amazon for shipment from China. The actual delivery is 7 to 15 days, if you do not receive it within 15 days, please contact us for customer service.