Piston Kit Fits Kohler K321 M14 3.500in 47-874-11-S

A standard piston kit for the Kohler K321 and M14, the 14 HP cast-iron L-head single-cylinder engines. The kit contains a 3.500-inch piston with its ring set, wrist pin and two circlips, and replaces 47-874-11-S. It fits every K321 suffix (K321A, K321S, K321AS, K321AQS, K321EP and the rest) and the M14. The engine has a 3.500-inch bore and 3.25-inch stroke, 31.27 cubic inches. This is the standard size; a bored cylinder takes an oversize piston, 47-874-10-S at .010, 47-874-14-S at .020 or 47-874-15-S at .030, so measure before ordering. Before assembly, check the bore for taper and out of round, check ring end gap and groove side clearance, and use a ring compressor.

• STANDARD PISTON KIT - A 3.500-inch standard piston with its ring set, wrist pin and two circlips.
• FITS KOHLER K321 AND M14 - The 14 HP cast-iron L-head singles, every suffix (K321A, K321S, K321AS, K321AQS, K321EP and the rest). The same piston fits both.
• REPLACES 47-874-11-S - The standard piston. If your parts list shows 47-874-11-S for your engine, this kit covers it.
• STANDARD BORE ONLY - For a 3.500-inch bore. Bored cylinders take oversize pistons: 47-874-10-S at .010 (3.510), 47-874-14-S at .020 (3.520) and 47-874-15-S at .030 (3.530). Measure before ordering.
• MEASURE BEFORE IT GOES TOGETHER - Check the bore for taper and out of round, ring end gap in the bore and side clearance in the groove, and use a ring compressor.