Notes: ER146167 SEAL RING 44.4X55 B10FSLSF 45X55X4/6 is original JOHN-DEERE product. ER146167 SEAL RING 44.4X55 B10FSLSF 45X55X4/61 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849