What Are Common Heavy Duty Truck Hydraulic Systems?

Common heavy-duty truck hydraulic systems are built around three main components: a wet line kit, a power take-off (PTO), and a hydraulic reservoir.

A wet line kit includes hydraulic hoses, tanks, reservoirs, control valves, and pumps, and is connected to the PTO. Depending on the application, it may be a two-line system for simpler uses or a three-line system with a separate return hose for more demanding tasks.

The power take-off (PTO) drives the hydraulic system and can be part of a wet line kit or installed separately.

The hydraulic reservoir stores hydraulic fluid, supports heat exchange, and is sized based on the truck’s operational needs.