VEVOR Hydraulic Pump, 8 Quart Dump Trailer Pump, Single Acting Hydraulic Power Unit, 3200 PSI Max Relief Pressure, 0.91 GPM Flow Rate, Hydraulic Pump Power Unit for Dump Trailer Car Lifting

The product description states it is constructed with durability in mind, has strong sealing to minimize leaks, and a rust-proof steel tank that can withstand impacts and daily use on heavy equipment. Customers consistently state it is very durable and well-built.

Based on the product information, it does not seem to explicitly state whether the hydraulic pump comes with hydraulic oil.

According to the product description, this hydraulic pump can be used with dump trailers.

This can be mounted vertically.

Yes, it can be mounted horizontally.