Craftsman DLS3500 Mower, Lawn and Garden Tractor

Briggs Intek Single 20hp 31P777-0635 E1

1" x 3-5/32" Shaft, Gravity Fuel Feed, 5/3 Amp Alternator You will need to reuse your muffler from your original engine. You may have to make slight wiring adaptions as the plug may not be the same.