American Lube Equipment 3:1 Stub Oil Pump with 2" ARO Thunder Air Motor LM-2203A-C Twin It is a cast iron

It is a cast iron wheel riding on a steel axle without the ball bearings

This is everything needed to replace the internals for your Samson Pump Master 2 3:1 pump along with the service to rebuild it

3/8"(M) x 3/8"(F)

Non-Metered

Model MV6840 is a professional hydraulic brake and clutch bleeding system that includes a fluid dispenser with manual pump (MV6400) and a kit containing seven master cylinder adapters (MVA6850)

American Lube Equipment 3:1 Stub Oil Pump with 2" ARO Thunder Air Motor LM-2203A-C Twin It is a cast ironRELIABLE 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.