Oil & Fuel BX2350 - the infamous second fuel filter Jul 19, 2013The way Kubota did the filters is a filter "before" the fuel pump and another filter "after" the elec fuel filter and "before" the fuel injector pump in the engine compartment. This way the fuel is filtered before it gets to the electric fuel pump to protect it and the fuel is again filtered before it gets to the injector pump. kubota bx2350 filters | eBay Find great deals on eBay for kubota bx2350 filters. Shop with confidence. Skip to main content. eBay Logo: NEW 2 Pack Fuel Filters Kubota BX22 BX23 BX24 BX25 BX2200 BX2230 BX2350 BX2660. Brand New. $19. Kubota Filter Kit for BX24 BX25 BX2230 BX2350 BX2360 BX2370 (CFKIT) Brand New. $42. Top Rated Plus.