Replacement Hydraulic Cylinders

McCann supplies replacement hydraulic cylinders through its parts counter and dealer channels. Options may include new OEM, remanufactured units rebuilt to OEM specification and quality aftermarket assemblies, depending on the machine and position. CASE-branded cylinders can be ordered through the CASE online parts store; other brands and sourced items should be confirmed with the parts counter using the machine serial number.

Rebuild may be appropriate when the barrel and rod remain serviceable and the fault is limited to seals, a wiper or a passing piston seal. Replacement is more appropriate when the rod is bent, the bore is scored or pitted, the barrel is cracked, or a mounting eye is damaged. Request both options after inspection, including parts, labour and any core terms.

Provide the machine make, model, serial number and cylinder position, such as boom, dipper, bucket, lift, tilt, stabiliser or steering. Configuration details, the existing part number, mounting style, port type and orientation can also help. Serial-number identification is important because cylinders may change across production runs and apparently similar assemblies may not interchange.

Remanufactured cylinders may be available for specific machines and positions. McCann describes remanufactured components as rebuilt to OEM specification, with a stated parts and labour warranty; some components may carry a better-than-new warranty. Reman units normally involve a core charge that is refunded when an acceptable rebuildable core is returned. Confirm availability, warranty terms and core conditions before ordering.

Cylinder drift can result from a passing piston seal, scored bore or damaged seals, but a failed load-holding, counterbalance or lock valve can produce similar symptoms. This is particularly important for stabiliser and loader positions. Diagnose the complete hydraulic circuit before purchasing a replacement, because installing a new cylinder will not correct a faulty valve.

Lower or securely block raised equipment and loads, relieve hydraulic pressure and follow lockout/tagout procedures before removing pins, ports or hoses. Cylinders and connected structures can retain stored hydraulic and mechanical energy after shutdown. Never search for a leak with your hand; use a safe method such as cardboard because pressurised fluid can cause injection injuries requiring emergency treatment.