The JCB 334D5421 is a genuine OEM heater pressure hose designed for optimal performance in JCB machinery. This essential component ensures proper circulation within the heating system, maintaining cabin comfort and system efficiency. It is compatible with a range of JCB backhoe loaders including 3CX and 4CX models, as well as various telehandlers such as the 531-70, 535-95, 540-140, 540-170, 533-105, 535-125, 535-140, 536-60, 541-70, 550-80, 560-80, TM320, TM320S, TM420, and TM420S.