Notes: 23446-050000 GASKET 50 is original YANMAR product. 23446-050000 GASKET 505 is commonly used in transmissions/axles/engines 4TNE98-TBZ, 4TNE84-P, 4TNE84-P, 4TNE98-TB, 4TNE98-TB, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849