American Lube Equipment 5:1 Oil Pump with 3" ARO Thunder Air Motor for 55-Gallon Drum LM-2305A-41B BL-1235-635 Cup and plate design eliminates

Cup and plate design eliminates the need for O-rings that wear out faster

5853 6" & 5852 coupler

This swivel allows free rotation of the control handle even when system is under pressure

Comfortable lever-action throttle with lock-on latch

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American Lube Equipment 5:1 Oil Pump with 3" ARO Thunder Air Motor for 55-Gallon Drum LM-2305A-41B BL-1235-635 Cup and plate design eliminatesRELIABLE DESIGNThunder pumps feature a patented, ice free air motor contained in a rugged housing that is designed to withstand the harshest working environments. ARO is so confident in this design that it is backed by a 5 year warranty. LUBE FREE AIR MOTORThe air valves and the piston are pre lubricated. Thunder pumps do not require an air line lubricator. NO MECHANICAL ASSISTThunder's patented valve design uses no trip rods, push pins, or springs.