530B-2, 530B-4 ALL 540B-2, 540B-4 ALL 540BM-2, 540BM-4 ALL 9803/3352 525B-HL (Supplement: Servo Hydraulics) ALL: 273492 Onwards 530B-HL (Supplement: Servo Hydraulics) ALL: 581641 Onwards 9803/3600 525-58 (Includes Basic Servo Option) ALL: 561001 Onwards 525-67 (Includes Basic ...