A hydraulic clutch of a work vehicle includes a clutch pack, a drum, a hub, a first piston, a piston guide, and a second piston. The first piston has a first end wall and a first engaging portion extending axially from the first end wall toward the clutch pack. The piston guide has a guide body extending axially from a closed end of the drum, passing through the first end wall of the first piston, and extending radially to an inner periphery of the first piston to form a chamber wall. The second piston is disposed on another side of the chamber wall and has a second end wall and a second engaging portion extending axially from the second end wall toward the clutch pack.