Cub Cadet 3186 Mower, Lawn and Garden Tractor Category
Original Model: CH18S-32599
1-1/8" X 2-3/4" Shaft. You can use any of the engines listed below, but may have to make some part swaps. Any external parts from your original engine will interchange with parts on any engine listed below.
Parts List
3 ProductsEngines
CH730-0169
23.5hp Command, Horizontal 1-1/8"x2-3/4" Shaft, 15Amp Alternator, Oil Filter & Cooler, made for John Deere, Kohler Engine
CH730-3225
23.5hp Kohler Command Engine, Horizonal 1-1/8"x2-3/4" Shaft, includes muffler, exact replacement for Exmark 68606,68543,CH730-0003
CH740-3117
25hp Kohler Command Engine, Horizontal 1-1/8"x2-3/4" Keyed Shaft, Electric Start, 15 Amp Alternator, Canister Air Filter, replaces CH740-0045 on Exmark
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General Disclaimer
While we may have sold many engines listed above to be used for a Cub Cadet 3186 Mower, Lawn and Garden Tractor Category, we are NOT claiming these are exact replacements unless the product notes explicitly say so. Many original equipment engines may no longer be in production because of obsolescence or EPA regulations, so in some cases there may not be an exact replacement available. Our intention here is to show that other customers have utilized these in the equipment shown, but may have had to make some modifications to do so. If we know of any required changes, we will list those, however, some adapting during installation should be expected.