Cub Cadet 1863 Mower, Lawn and Garden Tractor Category
Original Model: Kohler Command
The most common spec is 62509, which supercedes to 62588. You should be able to use one of the larger engines listed here although you may have to use minor parts off of your original engine. If you purchase an engine with a longer shaft you can cut the shaft down if needed since they are drilled and tapped 2 deep and are not made of hardened steel.
Parts List
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General Disclaimer
While we may have sold many engines listed above to be used for a Cub Cadet 1863 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.