Kubota Engine Oil Filter : W21ESO1500, W21ES-O1520
Fits models:
B series: B1220D, B1410, B1610, B1620D, B1820D, BX2350D
F series: F1900, G1700 ( after serial number 338135 )
G series: G18, G1900, G2160, G21, G23, GR1600, GR2100, GR2120, GZD15
R series: RTV500, RTV900, RTV-X900
T series: TG1860, ZD21