For Caterpillar Backhoe Loader: 416C, 416D, 420D, 420E, 424D, 426C, 428C, 428D, 430D, 430E, 432D, 432E, 434E, 436C, 438C, 438D, 442D, 442E, 444E, 446B, 446D, 450E. For Caterpillar Engine: 3054, 3114, 3054B, 3054C, 3054E, C4.4.