Description
When your hydraulic cylinder starts leaking or loses its hold, worn piston seals are usually the culprit. Worn cylinder seals cause implements to drift down, reduce lifting capacity, and create messy external leaks that waste expensive hydraulic fluid. This U-cup piston seal from Cross Manufacturing is the vital component that keeps hydraulic pressure where it belongs—working for you instead of pooling under your equipment.
What You’re Getting
- Precision-molded U-cup design that seals properly against hydraulic cylinder walls
- High-pressure construction that handles the demands of modern hydraulic systems
- Cross Manufacturing quality—the same brand that builds the cylinders
- Proper elastomer compound that resists hydraulic fluid breakdown and temperature extremes
Built for Real Farm Work
Seal Kits for Hydraulic Cylinders – For Hydroline & Cross are designed specifically for agricultural and construction applications. Whether you’re running a loader, operating a three-point hitch, or working with implement cylinders, this seal handles the constant pressure cycling that farm work demands. Cross cylinders are found on countless tractors, implements, and hydraulic equipment throughout agriculture.
Made to Last
High-pressure seals are manufactured from materials specifically chosen for hydraulic service – resisting the heat, pressure, and fluid compatibility challenges of modern systems. This isn’t a generic rubber ring—it’s engineered specifically for hydraulic cylinder service where temperatures swing from sub-zero mornings to scorching summer afternoons.
Installation Notes
Install seals using proper tools to avoid damage – never use sharp objects. Lubricate with clean hydraulic fluid during assembly. Take your time during installation and keep everything spotless. Cylinder rebuilding requires cleanliness above all else – any contamination causes rapid seal failure. A little extra care during installation means years of reliable service.






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