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Pump Adapters / Flange Adapters

When the pump doesn't fit the gearbox: Our pump adapters and intermediate flanges are the problem solvers when retrofitting hydraulic systems. They allow the mounting of modern DIN hydraulic pumps on power take-offs with different flange patterns or shaft types.

Connection Solutions for Every PTO

Often, an existing truck has an older power take-off (e.g., 3-bolt UNI) or an American standard (SAE), while the new pump has an ISO standard (4-bolt DIN). Instead of replacing the expensive PTO, simply use an adapter.


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Common Adaptations

Our solid steel adapters compensate for differences in bolting and shaft splines:

  • UNI to DIN: Adapts from 3-bolt flange (UNI 5289) to the common 4-bolt flange (DIN 5462 / ISO 7653). Ideal for upgrading old trucks to modern pumps.
  • SAE to DIN: Enables the mounting of DIN pumps on American SAE-B or SAE-BB flanges.
  • Cardan Adapter: Converts the pump output of the PTO to a propshaft flange (Spicer) if the pump cannot be mounted directly (e.g., due to space constraints).

Technical Features

  • Durability: Made of high-strength steel for continuous torque transmission.
  • Compactness: Short design to minimize the extension of the installation space at the gearbox.
  • Complete Sets: Often supplied including the matching coupling sleeve for the shaft.

Not Sure Which Flange You Have?

3-bolt, 4-bolt, splined shaft, or keyed shaft? If you are unsure which hydraulic pump adapter you need, simply send us a photo of your PTO and the pump. We will identify the connections and supply the matching connector.

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2 Products
Adapters for DIN Hydraulic Pumps on PTOs

The adapters we supply enable the easy integration of DIN hydraulic pumps with PTOs of various vehicle manufacturers. We offer a wide range of adapters that allow adaptation to various flange and shaft types. We are happy to provide detailed advice on the possible applications. Product Advantages Robust design for high continuous torque Available in a wide variety of models Mounting of DIN hydraulic pumps to engine PTOs Adaptation to other flange and shaft types Many additional variants available on request Using the shopping cart function, you can send us an inquiry. We will contact you promptly to help you select the design suitable for your application!

Flange Hub of the SAE B Drive Flange Side View of the Drive Flange SAE C
Drive Flange for Hydraulic Pumps and PTOs

Drive flanges are used for a secure connection between the hydraulic pump and the power take-off or motor shaft. They reliably transmit torque and ensure precise alignment between the drive and the output. Their robust design makes them ideal for mobile and stationary hydraulic systems. Function and Advantages: Reliable torque transmission between the drive and the hydraulic pump Precise centering to prevent shaft misalignment Compatible with DIN, ISO, and SAE standards Robust materials for a long service life Versatile selection of flange and bore combinations Available Variants: Flange Bore DIN 90/4 ISO 14 DIN 100 6/8 ISO 14 DIN 100 6/8 SAE B DIN 100 6/8 SAE BB 15T DIN 100 6/8 SAE C DIN 100/6 SAE CS DIN 100/6 SAE CS with clamp flange DIN 120/8 45 mm DIN 120 8/8 50 mm DIN 120 8/8 DIN 5462 DIN 120 8/8 ISO 14 DIN 120 8/8 SAE CS DIN 120 8/10 55 mm DIN 150 8/8 SAE CS DIN 150 8/10 DIN 5480 DIN 150 8/12 1 3/4" Areas of Application: Commercial vehicle hydraulics (e.g., tippers, cranes, municipal vehicles) Industrial hydraulics with power take-offs or multi-circuit systems Applications with pump mounting on gearboxes or motors You can send us an inquiry via the shopping cart function. We will contact you immediately to select the right version for your application!