This replacement GT2256S turbocharger is engineered to meet or exceed OEM specifications for JCB machinery equipped with the 444 Dieselmax engine. It provides reliable performance for a wide range of JCB models including 3CX and 4CX backhoe loaders, Loadall telehandlers (e.g., 531-70, 535-95, 540-140, 540-170, 541-70, 550-80), JS series excavators (e.g., JS130, JS145, JS160, JS180), Fastrac tractors (e.g., 3155, 3170, 3200, 3220, 3230), TM series telehandlers (e.g., TM310, TM320), and 400 series wheel loaders (e.g., 411, 412, 414, 416, 418, 426, 436). Cross-references to multiple JCB OEM part numbers and Garrett reference numbers ensure broad compatibility and ease of identification.