Hydraulic Pump Parts Charge pump 90R55 11cc/14cc/17cc

This charge pump is a direct fit for Sauer Danfoss 90R55 series hydrostatic pumps. You can get it in three displacements: 11cc, 14cc, or 17cc. It's what keeps the loop topped off with cool, clean oil.

The 11cc is the standard version. Most stock 90R55 builds ship with this one. It's reliable for normal duty cycles and won't oversupply the system.

The 14cc and 17cc are for higher flow needs. Use them if you've added a cooling fan, charge pressure filter, or hydraulic servo controls. They push more oil through the loop, which helps with heat dissipation.

Build quality matters here. This pump uses hardened steel gears and a cast iron housing. The wear plate is bronze-backed. No plastic or stamped parts inside. It'll hold up under constant pressure.

Before ordering, confirm your pump's serial number suffix. Displacement is stamped on the charge pump cover edge. Got a 90R55 with low charge pressure or overheating loop? Swap this in. Works with original bolts and seals.