Oregon 90-309 Mower Blade, 21-5/8" Compatible w/ John Deere M143504 Type_Tools and Supplies The rim's radial port design

The rim's radial port design uses centrifugal force to throw off sawduck and debris

Narrow-kerf system requires less power to cut through high volumes of wood quickly and easily

Full chisel chain cutters power through timber with speed

Semi-Chisel Cutter

single direction

Oregon 90-309 Mower Blade, 21-5/8" Compatible w/ John Deere M143504 Type_Tools and Supplies The rim's radial port designYou can count on the Oregon 90 309 replacement lawn mower Blade to be the best in the industry. Our 26 quality standards ensure that you're buying a sharp, high performance Blade that mounts properly and it delivers a clean cut for quality results. Many parts look similar, so its crucial to ensure youre choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the