Hydraulic Top Link Cat 2 with Locking Block and Check Valve

This Category 2 hydraulic top link replaces the standard mechanical top link on agricultural tractors, enabling precise implement angle adjustment from the operator seat. The double-acting cylinder features an integrated locking block with a bidirectional pilot-operated check valve that prevents cylinder drift and maintains position under load when the hydraulic pump is inactive. The assembly includes two hydraulic hoses with G3/8 (3/8 inch BSP) swivel fittings for direct connection to the tractor's double-acting remote valve. Constructed from high-strength 45# steel with a corrosion-resistant black powder-coated finish, the cylinder bore measures 3-1/8 inches (80 mm) with a 1-9/16 inch (40 mm) diameter hard chrome-plated rod. The unit provides a retracted length of 22 inches (559 mm) and extends to 33 inches (838 mm), delivering an 11-inch (279 mm) stroke. Both ends are equipped with 1-inch (25.4 mm) diameter pin holes and 2-inch (50.8 mm) wide ball sockets compatible with standard Category 2 three-point hitch linkages. Rated for a maximum working pressure of 20 MPa (2900 PSI), the cylinder generates approximately 17,100 lbs push force and 12,900 lbs pull force at 2,175 PSI system pressure.