EDGE-CUTTING 5V7421 - Caterpillar

Table 1
Model Number     Serial Number Prefix    
950G     (S/N: 2JS952-UP; 3JW1214-1219 and 1221-UP; 4BS540-UP; 5FW1276, 1280-1281 and 1287-UP; 5MW518-UP; 6NS251-UP; 8JW292-UP)    
962G     (S/N: 3BS1612-UP; 4PW330-UP; 5AS303-UP; 5RS224-UP; 6EW278-UP; 6HW305-UP; 7BW538 and 540-UP)    
966G     (S/N: 3PW583 and 585-UP; 3SW575-578 and 580-UP; 8XW320-UP; 9RS802-UP; AHH333-UP; 3ZS429-UP)    
972G     (S/N: 1EW420 and 423-UP; 4WW428-UP; 7LS270-UP; 9GW284-UP; AWW191-UP; 3ZS1-UP; 6AW320 and 323-UP)    
IT62G     (S/N: AKP371-UP)    The new 160-8408 Modulating Valve is adaptable to first production machines if additional components are used. Using the new 160-8408 Modulating Valve will also require using 179-4964 Jumper. You must use at least 177-1492 Power Train Software .Reference: Refer to Special Instruction, REHS0548, "Field Service of the Transmission Hydraulic Control Valves (Modulating Valves) with the 160-8408 Modulating Valve " for procedures on installing the modulating valve.