Product Features


This unique two piece body, light weight and compact design PTO hydraulic dump pump is the best solution for dump applications. Integrated air cylinder gurantees a long life cycle. Installation is made more easy with compact dimensions and lower weight. It could be ordered with a compact air actuated dual setting pressure relief valve to get the most out of your hydraulic wetline kit connecting your trailer to both dump and live bottom high pressure applications. PTO hydraulic dump pump is a cobined gear pump and a hydraulic valve for easier installation on truck wet kits.

APPLICATIONS: Combined with any of our wide range of PE series eaton fuller PTO, PIM series Volvo I-Shift/Mack mDrive PTO, PA series hot shift PTO for AISIN and ALLISON automatic transmissions, it can power your hydraulic wetline or equipment on dump trucks, dump trailer, end dumps, live bottoms, shuttle floor, float, walking floors and combo systems.

Standard model numbers: PVB4C27L23P2, PVB4C27L23P3

Gear pumps

Gear pumps (with external teeth) (fixed displacement) are simple and economical pumps. The swept volume or displacement of gear pumps for hydraulics will be between about 1 to 200 millilitres. They have the lowest volumetric efficiency ( η v ≈ 90 % {\displaystyle \eta _{v}\approx 90\%} ) of all three basic pump types (gear, vane and piston pumps)[1] These pumps create pressure through the meshing of the gear teeth, which forces fluid around the gears to pressurize the outlet side. Some gear pumps can be quite noisy, compared to other types, but modern gear pumps are highly reliable and much quieter than older models. This is in part due to designs incorporating split gears, helical gear teeth and higher precision/quality tooth profiles that mesh and unmesh more smoothly, reducing pressure ripple and related detrimental problems. Another positive attribute of the gear pump, is that catastrophic breakdown is a lot less common than in most other types of hydraulic pumps. This is because the gears gradually wear down the housing and/or main bushings, reducing the volumetric efficiency of the pump gradually until it is all but useless. This often happens long before wear and causes the unit to seize or break down.