Add to Favorite Sellers. Mallory 29256 Model Series 110 Fuel Pump Gas. High performance, 12 volt pump provides 110+GPH free flow at 12.5 volts. Internal bypass regulator is set at 7 PSI and delivers. 3/8″ NPT thread accepts 3/8″ fuel line or larger. Mounting hardware supplied and service parts are available. Customer Service & Feedback. Read More…