Grasshopper 620 Mower, Front Mount Deck Category
Original Model: Kohler Command CH20
Original spec is normally a 64756, which in no longer available. You can use any of the engines listed below by reusing some parts off of your old engine. External parts are interchangeable. You will need to use the drive adapter and muffler off of your original engine.
Parts List
6 ProductsEngines
CH640-3149
20.5hp Command OHV Horizontal 1-1/8"x3-11/32" Shaft ES fits Grasshopper, Woods, supersedes CH20-64510 and CH640-3075, Kohler Engine
CH640-3150
20.5hp Command OHV Horizontal 1-1/8"x3-11/32" Shaft ES fits Grasshopper, Woods, Snorkle Air Cleaner, Kohler Engine
CH742-3111
25hp* Command Horizontal 1-1/8"x3-11/32" Shaft, OHV, ES, fits on Grass Hopper, replaces CH740-0037, CH740-3165, Kohler Engine
CH742-3121
25hp* Command Horizontal 1-1/8"x3-11/32" Shaft, OHV, ES, Left Muffer, fits on Grass Hopper, replaces CH740-3169, CH740-0037, can also use CH740S-3165, Kohler Engine
FH680D-GH718K
23hp Kawasaki FH Series engine for Grass Hopper 718K with a Kohler Command Pro, - This kit should bolt in the 718, 720, 723, and the 725 series mower that have the 2 pump drive system. (cannot be shipped to California)
FH721D-GH718K-R1
25hp Kawasaki FH Series engine for Grass Hopper 718K with a Kohler Command Pro, - This kit should bolt in the 718, 720, 723, and the 725 series mower that have the 2 pump drive system.
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General Disclaimer
While we may have sold many engines listed above to be used for a Grasshopper 620 Mower, Front Mount Deck 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.