Notes: 114220-22150 RING SET, PISTON .50 is original YANMAR product. 114220-22150 RING SET, PISTON .505 is commonly used in transmissions/axles/engines L70V5AJ8T2AAWK, L70V5EA1C1AA, L70V5EA1C1HABE, L70V5EJ0C1HAPR, L70V5EJ1C1HAAY, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849