Aftermarket Spanner Wrenches

For repairing the hydraulic systems on heavy equipment, a spanner wrench—often called an adjustable gland nut wrench—is an essential tool. Unlike standard wrenches, these special-purpose tools are designed with rugged pins or hooks that precisely engage with the holes or slots on the large gland nuts of hydraulic cylinders. This design allows you to apply the high torque needed to safely disassemble and reassemble cylinders for seal replacement and other repairs. At FridayParts, we offer a range of durable wrenches and kits engineered to fit the hydraulic cylinders on equipment from leading brands like CASE, Bobcat, and a wide variety of farm machinery, ensuring you have the correct tool to perform critical repairs without damaging precision components.