Complete .010 Oversize Rebuild Kit for Kohler KT17, M18, MV16, MV18 Twins This kit rebuilds the Kohler twin-cylinder engine with cylinders bored .010 inch oversize. It includes two .010 oversize pistons with matched ring sets, two standard connecting rods, and a complete 26-piece gasket set with crankshaft and intake valve seals - enough for one engine. Fitment and Bore Fits the Kohler KT17, M18, MV16, and MV18 twins (79.4mm standard bore). This kit is specifically for cylinders that have been machined .010 inch oversize. If your cylinders are standard bore, order the standard kit; if bored .020 inch, order the .020 oversize kit. It does not fit the larger-bore KT19, M20, or MV20 engines, which use a different piston. Confirm your bore size before ordering. Replacement Numbers and Assembly Replaces Kohler pistons 52-874-12-S (.010 oversize) with rings 52-108-10-S, connecting rods 52-067-67-S, and gasket set 25-755-37-S. Because the pistons and rings ship as a matched set, no ring-style measurement is needed. Use a piston ring compressor and follow Kohler torque specifications during assembly.
- A complete .010 inch oversize rebuild kit for the Kohler twin: two .010 oversize pistons with matched rings, two standard connecting rods, and a complete gasket set with crankshaft and intake valve seals. Covers one two-cylinder engine.
- Fits the Kohler KT17, M18, MV16, and MV18 twin-cylinder engines (79.4mm standard bore). It does not fit the larger-bore KT19, M20, or MV20, which use a different piston.
- This kit is for cylinders that have been bored .010 inch oversize. If your cylinders are still standard bore, order the standard kit; if bored .020 inch, order the .020 kit. Confirm your bore size with your machinist before ordering.
- Replaces Kohler numbers: pistons 52-874-12-S (.010 oversize, two) with rings 52-108-10-S; connecting rods 52-067-67-S (two); and gasket set 25-755-37-S, a 26-piece set with crankshaft and valve seals. Pistons and rings ship as a matched set, so no ring-style measurement is needed.
- Also available: a .010 oversize piston-and-ring set without rods or gaskets, plus standard and .020 oversize versions for other bore sizes. Use a ring compressor and follow Kohler torque specifications on assembly.