PUMP WITH FLANGE FOR PETROL ENGINE SAEJ1609A E4 25.4mm / 1 ”- Over dimensioned and rectified guide piston rods to reduce friction during sliding and better oil seal. – Oversized shaft with a terminal for better torque transmission. – Very thick ceramic pistons for longer life. – Intake and delivery valves with increased water passages. – Oversized beakers made with a special anti-friction alloy. – Head pump in forged brass with a design for high resistance. – Double seal sealing system. – Ball bearings – Sturdy design pump body. – “U” seal