John Deere LT108 Mower, Lawn and Garden Tractor Category
Original Model: Briggs 18.5hp 31P777-0367
This engine had a 1" x 3-5/32" shaft, 9 amp alternator, and a fuel pump. If you have an electric clutch, you will have to purchase an engine with a 9 or 16 amp alternator or use the stator and regulator off of your old engine. If you have a fuel tank or fuel pump mounted to your engine, you will also need to use it off of your old engine or purchase an engine with those features.
Parts List
3 ProductsEngines
31R977-0054
17.5hp Briggs & Stratton Engine, Vertical 1"x3-5/32" Shaft, Electric Start, 9 Amp Alternator, Fuel Pump
31R977-0105
17.5hp Briggs & Stratton Engine, Vertical 1"x3-5/32" Shaft, Electric Start, 9 Amp Tri Circuit Alternator, Fuel Pump, Oil Filter, Muffler
33S877-0043
19hp Briggs & Stratton EX1900 Series Engine, Vertical 1"x3-5/32" Shaft, Electric Start, 9 Amp Alternator, Fuel Pump, Choke-a-Matic (replaces 33S877-0019)
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General Disclaimer
While we may have sold many engines listed above to be used for a John Deere LT108 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.