White LT-1850 Mower, Lawn and Garden Tractor Category
Original Model: Tecumseh TVT691-600809A
The OV691EA-600833 engine should work for you if you have the same shaft size. Some of these units had a Briggs 407777-0128 with a 1" X 3-5/32" shaft. You cannot directly interchange the Briggs and the Tecumseh engines. You will need to stay with the engine brand that you currently have.
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While we may have sold many engines listed above to be used for a White LT-1850 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.