John Deere 643D, 643G, 843G Feller Buncher Windows T491074 1/4" is OEM thickness

1/4" is OEM thickness

so be sure to check the dimensions of the window listed above and compare them to your machine to be sure you are ordering the correct window (tallest and widest measurements)

Door  57 1/2" x 34 3/8" Rear Side Behind Door 13 1/2" x 35 1/2"

843G feller bunchers

John Deere 643D, 643G, 843G Feller Buncher Windows T491074 1/4" is OEM thicknessAbrasion resistant polycarbonate windows for the John Deere 643D, 643G, 843G feller bunchers. Check your major dimensions with our listed below (tallest and widest measurements). Location Dimensions OEM# Replacements Front 40 5 8" x 46 3 8" AT175577 AT201343 Front Sides 'L or R' 38 3 4" x 16 1 2" AT201344 Rear 26 1 2" x 42 1 2" AT201346 Rear Sides 'L or R' 28 3 8" x 12 3 4" AT201345 Skylight 26 3 4" x 5 1 4" AT201348 Right Slider Windows 12 3 4" x 16