OK request send SAA4D95LE-5BB S/N 503228-UP (For D31EX-22/D31PX-22) ENGINE FUEL SYSTEM Section ENGINE FUEL SYSTEM SAA4D95LE-5BB S/N 503228-UP (For D31EX-22/D31PX-22) Komatsu: FUEL FILTER LOCATION d004000 FUEL FILTER PIPING d001000 FUEL FILTER LOCATION d005000 FUEL INLET FITTING d006000 FUEL SUPPLY PUMP d002000 FUEL PIPING d003000