Magnaloy Coupling Company Parts & Cross-References

Magnaloy Coupling Company has machined precision fluid power components since 1956, starting with its lightweight, heavy-duty flexible drive coupling. Now a division of Douville Johnston Corporation in Alpena, Michigan, Magnaloy builds flexible drive couplings, pump and motor mounts, cylinder rod end alignment couplers, hydraulic manifolds, and hydraulic reservoirs. Northern Hydraulics supplies and cross-references Magnaloy components, including coupling and mount families and equivalent replacements for discontinued part numbers.

Magnaloy Coupling Company Product Lines & Series

Magnaloy organizes its catalog around a few core families that recur across drive, mounting, and alignment applications:

• Flexible drive couplings in the M100, M200, M300, M400, M500, M600, M700, M800, and M900 size series, machined in magnesium and powdered metal.
• Coupling insert variants in N, U, and H types to match torque, temperature, and damping requirements.
• Pump and motor mounts in aluminum and steel. Browse the Magnaloy hydraulic pump mount line and the bell-housing style mounts that adapt a pump or motor to an engine or driver.
• Cylinder rod end alignment couplers in the M-Series and R-Series, with the R-Series built specifically for retrofit fit against competitive brands.
• Hydraulic manifolds and manifolding accessories, plus hydraulic reservoirs and the RVS reservoir top series.

If you are matching a coupling by series number, insert type, or mount orientation, send the existing Magnaloy or competitor designation and we will identify the corresponding part.

Cross-Referencing Magnaloy Coupling Company Parts

Magnaloy publishes direct interchanges for most major competitor couplings and mounts, and the R-Series rod end alignment couplers are engineered as retrofit replacements for competing brands. We use those interchange relationships, the Magnaloy part number conversion data, and the size-series logic of the M100 through M900 couplings to map a part you already have to a current Magnaloy equivalent. If a coupling, insert, mount, or reservoir top has been superseded or discontinued, give us the legacy number, the bore and series, and the insert type, and we will return a working equivalent or retrofit option. To cross-reference an obsolete or hard-to-identify Magnaloy part, request a quote with the markings and dimensions you have on hand.