Kohler K321 / M14 Complete Engine Rebuild Kit - 14HP | Piston, Rod, Gaskets, Valves, Points

Complete engine rebuild kit for Kohler K321 and M14 14HP engines. This comprehensive kit includes everything needed for a complete engine overhaul: Style A piston assembly, connecting rod, complete gasket set, valves, and ignition points.

Kit Includes:

• Style A piston assembly (piston, Style A rings, wrist pin, clips)
• Connecting rod (1.500" crankshaft journal)
• Complete overhaul gasket set (23 pieces)
• Exhaust valve
• Intake valve
• Breaker points

Compatible Engines:

• Kohler K321 (14HP) - 3.500" bore
• Kohler M14 (14HP Magnum) - 3.500" bore

Piston Sizes Available (3.500" Bore - Style A):

Standard (3.500"):

• 47-874-11-S

.010" Oversize (3.510"):

• 47-874-10-S

.020" Oversize (3.520"):

• 47-874-14-S

.030" Oversize (3.530"):

• 47-874-15-S

.040" Oversize (3.540"):

• Available upon request

Connecting Rod Sizes Available (1.500" Journal):

Standard (1.500"):

• 47-067-09-S

.010" Undersize (1.490"):

• 47-067-10-S

.020" Undersize (1.480"):

• 47-067-13-S (often used for both K301 and K321)

Important Notes:

• Select piston size and connecting rod size from dropdown - STD ships if no selection made
• Connecting rod has 1.500" crankshaft journal
• Complete 23-piece gasket set included
• ⚠️ Bearing plate gaskets are K-series style ONLY
• M14 engines may require different bearing plate gaskets (not included)
• This kit uses Style A piston and rings
• Compatible with Style A piston rings sold separately on our site
• Piston oversizes for rebored cylinders
• Rod undersizes for reground crankshafts
• Measure cylinder bore and crankshaft journal to determine correct sizes
• All components needed for complete engine rebuild

Complete rebuild solution for Kohler K321 and M14 14HP engines. Everything you need for a professional engine overhaul in one comprehensive kit.