CYLINDER KIT - MASTER (CAT CT21751)

CT21751: A damaged cylinder kit can cause erratic mast movement or complete loss of function. This aftermarket replacement part references CAT as the OE maker and carries the cross-reference number CT21751. The cylinder kit serves as a master assembly that houses internal seals and pistons to convert fluid pressure into linear motion. Over time, seal wear may lead to internal leakage, reducing force output and causing slow or uneven operation. During a rebuild, technicians often replace the entire kit to restore consistent pressure and prevent fluid bypass. The item ships at approximately 0.221 POUNDS. Verify the serial number or application, then call (562) 693-7748.

Part number variants: CT21751, ct21751