$19.75
This Crown U-cup hydraulic seal contains pressurized fluid in a cylinder bore as the piston or rod moves through its stroke, its flexible lip pressing outward under pressure to hold contact with the cylinder wall. A wear item, its lip degrades over time, showing up as slow cylinder drift, reduced lift or tilt speed, or fluid seepage at the cylinder.
This U-cup hydraulic seal is built for Crown lift trucks, sealing a hydraulic cylinder bore to keep pressurized fluid contained as a piston or rod moves through its stroke. The U-cup profile uses a flexible lip design that presses outward under hydraulic pressure, maintaining contact with the cylinder wall or rod surface across the full range of motion.
At 1.9 inches long, 2.4 inches wide, and only 0.4 inches thick, this is a compact, low-profile seal sized for a specific bore diameter within Crown's hydraulic system lineup. Its light weight of 0.05 pounds reflects the thin, flexible elastomer construction typical of U-cup seals rather than a rigid metal component.
As a wear item, a U-cup seal loses its sealing lip over time from repeated flexing and friction against the cylinder wall, and once the lip degrades, fluid begins to bypass the seal, showing up as slow cylinder drift, reduced lift or tilt speed, or visible hydraulic fluid seepage at the cylinder. Replacing the seal before it fails prevents fluid loss and keeps hydraulic response consistent. Forklifts Etc. stocks this seal as a Crown-specific replacement.
