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American APM-56 Series

Close-Coupled Wobble Pumps and Parts

The APM-56 Close-Coupled Wobble Pump offers flows from 0-24 GPM at pressures up to 50 psi. The simple design of the "wobble" stator and just one universal joint give you the inherent advantages of a progressive cavity pump offering low pulsation and shear of solids in suspension as well as pumping viscous liquids.

In addition, the pump is available with a standard mechanical seal or can be upgraded to a hard-face mechanical seal for abrasion resistance. The American pump series is offered in a long-coupled design for mounting on a baseplate with a standard motor.

View Pump Curves, Drawings & Performance

Find out more about the specifications of the American Series APM56 Pump on our Liberty Process website.

Aftermarket American Series APM-56 PC Pump Parts

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APM-56 Wobble Pump Motors/Baseplates

Motors and mounting baseplates for full pump packages are available based upon your requirements. Please contact us today to discuss your options.

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APM-56 Wobble Pump Stators

Standard Buna Nitrile stators with options in Viton and EPDM. Other stator materials are available. Contact us for details.

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APM-56 Wobble Pump Rotors

The close-coupled version is available with a standard 304 stainless steel hard-chrome plated rotor for long service life.

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APM-56 Wobble Pump Parts

Replacement pump parts as well as rebuild services for wobble stator pumps are available. Parts are available online, for rebuild services please contact us.


*Neither Progressivecavityparts.com nor its parent companies nor their replacement aftermarket progressive cavity pump parts are representative, affiliated or associated with Moyno®, Tarby®, Netzsch®, Continental®, Seepex®, Roper® or Allweiler® or their respective parent corporations. All part numbers, product lines and/or descriptions are for reference purposes only.

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APM56 Wobble Pump w/Threaded Connections APM56 Wobble Stator Pump w/Threaded Connections APM56 Wobble Stator Pump w/Threaded Connections
APM56 Wobble Stator Pump
Sold Individually $2,115.00
APM56 Wobble Stator Pump
Sold Individually $1,163.00
APM56 Wobble Stator Pump-Stainless Steel
Sold Individually $3,618.00
w/Threaded Connections -  0-24 GPM w/Threaded Connections -  0-24 GPM w/Threaded Connections -  0-24 GPM
APM56 Wobble Stator Pump w/Threaded Connections APM56 Wobble Stator Pump w/Pinned Connections American Series AP56/APM56 F Pump Stator -Viton
APM56 Wobble Stator Pump-Stainless Steel
Sold Individually $2,449.00
APM56 Wobble Stator Pump
Sold Individually $1,163.00
AP56/APM56 Pump Stator
Sold Individually $574.00
w/Threaded Connections -  0-24 GPM w/Pinned Connections -  0-53 GPM Viton
American Series AP56/APM56 Q Pump Stator American Series APM56 Pinned Pump Rotor - Chrome Plated Stainless Steel American Series AP56/APM56 Threaded Wobble Stator Pump Rotor
AP56/APM56 Pump Stator
Sold Individually $134.00
APM56 Pinned Pump Rotor
Sold Individually $267.00
AP56/APM56 Threaded Pump Rotor
Sold Individually $267.00
Buna Nitrile Chrome Plated Stainless Steel Chrome Plated Stainless Steel
American Series APM56 SSQ Rotor Pin American Series APM56 SSQ Shaft Pin American Series AP56/APM56 CDQ Suction Case - Cast Iron
APM56 Rotor Pin
Sold Individually $22.00
APM56 Shaft Pin
Sold Individually $22.00
AP56/APM56 Suction Case
Sold Individually $337.00
Steel Steel Cast Iron
American Series AP56/APM56 SSQ Suction Case - Stainless Steel American Series AP56/APM56 CDB Pump Stator American Series AP56/APM56 Standard Mechanical Pump Seal
AP56/APM56 Suction Case
Sold Individually $555.00
AP56/APM56 Pump Stator - EPDM
Sold Individually $155.00
AP56/APM56 Mechanical Pump Seal
Sold Individually $63.00
Stainless Steel EPDM Carbon/Ceramic with Buna Elastomers
American Series AP56/APM56 Hard Face Mechanical Pump Seal AP56/APM56 Mechanical Pump Seal American Series APM56/AP56  SSF Threaded Flex Joint
AP56/APM56 Hard Face Pump Seal
Sold Individually $150.00
AP56/APM56 Mechanical Pump Seal
Sold Individually $73.00
APM56/AP56 Threaded Flex Joint
Sold Individually $338.00
Silicon Carbide/Silicon Carbide with Buna Elastomers Carbon/Ceramic with Viton Elastomers Stainless Steel and Viton
American Series AP56/APM56 Threaded Flex Joint - Stainless Steel and Buna Nitrile American Series APM56 Pinned Flex Joint - Stainless Steel and Buna Nitrile American Series APM56 SSQ Threaded Stub Shaft
AP56/APM56 Threaded Flex Joint
Sold Individually $244.00
APM56 Pinned Flex Joint
Sold Individually $244.00
APM56 Threaded Stub Shaft
Sold Individually $222.00
Stainless Steel and Buna Nitrile Stainless Steel and Buna Nitrile Stainless Steel
American Series APM56 SSQ Pinned Stub Shaft, Chrome Plated Stainless Steel American Series APM56 CDQ Discharge Casing American Series APM56 SSQ Discharge Casing - Stainless Steel
APM56 Pinned Stub Shaft
Sold Individually $222.00
APM56 Discharge Casing
Sold Individually $323.00
APM56 Discharge Casing
Sold Individually $832.00
Chrome Plated Stainless Steel Cast Iron Steel
American Series AP56/APM56 Drain Plug American Series AP56/APM56 Drain Plug American Series APM56 Pump Foot - Cast Iron
AP56/APM56 Drain Plug
Sold Individually $10.00
AP56/APM56 Drain Plug
Sold Individually $16.00
APM56 Pump Foot
Sold Individually $25.00
Steel Stainless Steel Cast Iron