.030 Over Piston Kit 45-874-05-S Fits Kohler K341 16HP

Chrome piston kit, .030 inch oversize, that fits the Kohler K341 16 HP cast iron engine with any suffix (K341A, K341S, K341AS, K341AQS and the rest). Replaces 45-874-05-S. The K341 standard bore is 3.750 inch, so this kit is for a block bored .030 over to 3.780 inch. The oversize ladder is 45-874-01-S standard, 45-874-02-S .003, 45-874-03-S .010, 45-874-04-S .020 and 45-874-05-S .030. Measure the finished bore and read the size stamped on the old piston's crown before ordering. On assembly, check ring end gap, stagger the gaps, hone for a crosshatch and fit the piston facing the same way as the old one.

• CHROME PISTON KIT, .030 OVERSIZE - Replaces 45-874-05-S. Standard bore on the K341 is 3.750 inch, so this is for a block bored .030 over to 3.780 inch.
• FITS KOHLER K341, 16 HP - Every suffix takes the same piston: K341A, K341S, K341AS, K341AQS and the rest. The letters describe the oil pan and the starter, not the bore.
• THE OVERSIZE LADDER - 45-874-01-S is standard, 45-874-02-S is .003, 45-874-03-S is .010, 45-874-04-S is .020 and 45-874-05-S, this one, is .030. Measure the finished bore and order to match.
• READ THE OLD PISTON - The size is usually stamped on the crown. A block bored at some point in the last fifty years is often not the size anybody remembers, so read it rather than guess.
• ON ASSEMBLY - Check ring end gap in the bore, stagger the gaps, and hone for a crosshatch. If the old piston has a mark on the crown, note which way it faced and fit the new one the same way.