Steiner ZTM320 Mower, Zero Turn Category

Original Model: Kohler CH20-64655

This engine has a 1-1/8" X 3-11/32" shaft. The engine listed here has a longer shaft but it can be cut down if needed. There may be minor differences like wiring, air breather, throttle and choke controls but parts should be interchangeable as needed.

Parts List

2 Products



19hp Horizontal 1 1/8" x 4" Shaft, Command OHV, Fuel Pump, Key Switch, Muffler, Supersedes CH620-3017, Kohler Engine



Currently unavailable from our suppliers.


19hp Kohler Command Series Engine, Horizontal 1 1/8" x 3 11/32" Shaft, Electric Start, 15 Amp Alternator, Fuel Pump, Center Muffler



Temporarily out of stock. Order now or call 800-321-6725 for information

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General Disclaimer

While we may have sold many engines listed above to be used for a Steiner ZTM320 Mower, Zero Turn 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.