Oregon 90-309 Mower Blade, 21-5/8" Compatible w/ John Deere M143504 Type_Tools and Supplies Reduced rail wear and more

Reduced rail wear and more precise cutting via better chain fitup

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

single direction

Fits John Deere Tri-Cycler walk behind mower and 145Z models

easy to maneuver guide bar for occasional woodcutters using small Electric and gasoline powered chain saws

Oregon 90-309 Mower Blade, 21-5/8" Compatible w/ John Deere M143504 Type_Tools and Supplies Reduced rail wear and moreYou 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