5/16″ Inline diesel Fuel Filter Replace OEM# Kubota 12581-43010 12581-43012 12691-43010 13351-43010 13301-43010. 12581-43012 Fuel Filter For Kubota BX22D BX23D BX24D BX25 BX1870 BX1860 BX1850D BX1830D BX1800D BX1500D BX2200D BX2230D BX2350D larger HP engines.