Notes: R212817-P.O.57201495 TOROIDAL FISSAGGIO MARTINETTO D.10 is original JOHN-DEERE product. R212817-P.O.57201495 TOROIDAL FISSAGGIO MARTINETTO D.101 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849