77mm Kohler 2 Piston Kit with Rings for CH18 CH20 CH22 CH620

Two 77.00mm standard pistons with matched ring sets, wrist pins and circlips for the Kohler 77mm, 624cc twin-cylinder engines. Gaskets, seals, connecting rods and valves are not included. They fit the CH18, CH20, CH22, CH620, CH621, CH640 and CH641 and the CV18, CV20, CV22, CV620, CV624 and CV640; some CH22, CH620 and CH640 engines are the 80mm, 674cc version, so check the displacement on the nameplate. They are for a standard 77.00mm bore that has not been bored oversize. There is one piston for each cylinder of the twin. Before assembly, check ring end gap in the bore and side clearance in the groove, use a ring compressor, and find the cause of any scuffing on the old piston.

• TWO PISTONS WITH RINGS - Two 77.00mm standard pistons with matched ring sets, wrist pins and circlips. Gaskets, seals, connecting rods and valves are not included.
• FITS KOHLER 77MM, 624CC TWINS - CH18, CH20, CH22, CH620, CH621, CH640, CH641, CV18, CV20, CV22, CV620, CV624 and CV640. Some CH22, CH620 and CH640 engines are the 80mm, 674cc version, so check the displacement on the nameplate.
• FOR A STANDARD 77.00MM BORE - For a cylinder that has not been bored oversize and is within its taper and out-of-round limits. A worn bore needs boring and an oversize piston instead.
• BOTH CYLINDERS - Two pistons with their rings, one for each cylinder of the twin.
• MEASURE BEFORE IT GOES TOGETHER - Check ring end gap in the bore and side clearance in the groove, and use a ring compressor. If the old piston scuffed, find out why, such as an air leak, overheating or low oil, before fitting the new one.