Roper Pump Replacement Gear Set for 2AM 27 | A Series Helical Gear Set

Roper Pump Replacement Gear Set for 2AM 27

When your Roper 2AM 27 pump starts losing efficiency or flow rate or develops excessive internal slip, the culprit is nearly always worn gears. Rather than replacing the entire pump assembly, a genuine replacement gear set gives your 2AM 27 a second life, restoring its rated theoretical displacement of 2.7 gallons per 100 revolutions and its maximum flow capacity of 48.6 GPM at 1,800 RPM.

This gear set is engineered specifically for the Roper A Series 2AM 27 external gear pump, one of the most widely deployed positive displacement pumps in petroleum transfer, hydraulic service, pressure lubrication, and general industrial fluid handling. The gears are machined to the same precision tolerances as the original factory components, ensuring a drop-in fit with no modification required.

Roper Pump Company, headquartered in Commerce, Georgia, has manufactured gear pumps for decades. Their A Series pumps are recognized across industrial, marine, and agricultural sectors for reliability and quiet operation — largely due to the helical gear tooth profile used throughout the range. Replacing worn gears with the same helical-cut, ductile iron components maintains all of those performance characteristics.

For a complete pump restoration, pair this gear set with:

• Bearing cage gasket — MPN D11-59 (GASKET, BRG CAGE, A 06-75)

• Case gasket — MPN D11-257 (GASKET, CASE, A 06-75)

• Mechanical seal — Refer to Roper parts list under G3/G4 series

• Relief valve poppet — MPN D16-114 (RV POPPET, AM 06-40)

Why Replace Gears Instead of the Whole Pump?

The cast iron housing of the Roper 2AM 27 will last a lot longer than the parts that move inside it. Most of the time, pump wear happens only on the gear set and bearings. The housing, faceplate, and backplate keep their original size for years of extra use. Replacing just the gear set usually costs a small amount of what a new pump costs, and it brings back all of the original flow and pressure ratings. If a facility has more than one 2AM 27 pump, keeping a spare gear set on hand is a cost-effective way to make sure the pumps are always working and to cut down on unplanned downtime.