An axle number is written differently from how it looks on the plate, which is why most enquiries reach us with the wrong code. Here is how to read Carraro, Dana Spicer and ZF numbers, plus a list of axle and gearbox series found in construction and agricultural machinery.

We have collected in one place the designations of hydraulic pump and motor series that most often come in for repair or replacement. Rexroth, Sauer Danfoss, Linde, Kawasaki, Liebherr, Parker, Kayaba, Nachi, Uchida and the rest. Find your series on the list and check parts availability.

The number on the housing decides whether you get the right part or lose a week on a replacement. We explain where to find the nameplate, which field is the part number, how to read the codes of the main manufacturers, and what to do when the plate is unreadable.