Craftsman DYT4000 Mower, Lawn and Garden Tractor Category
Original Model: Various Brands
If you have an electric clutch you will have to purchase an engine with a 9 amp or larger alternator or reuse the stator and regulator off of your old engine. Briggs Intek Single cylinder engine 31P777 & 31P977-1066-E1. If your engine has a fuel pump, you will need to purchase and engine with a fuel pump or reuse you dipstick tube, fuel pump, all vacuum and fuel lines, and fuel pump bracket. Briggs Intek Twin 445777 407777-0121 with a 1" shaft. Some also had a Kohler CV730-0018 which has a 1" x 3 5/32" shaft. You cannot interchange the Briggs and the Kohler engines, they are totally different. You can use a Command Twin listed below, there may be minor differences however parts would be interchangeable if needed.
Parts List4 Products
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While we may have sold many engines listed above to be used for a Craftsman DYT4000 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.