FINAL DRIVE GP 7Y1555 - Caterpillar

Table 1
Former Part    New Part(s)    Additional information    
144-0837 Unit Injector Hydraulic Pump Gp     201-4202 Unit Injector Hydraulic Pump Gp     The fuel transfer pump is not included.    
144-0835 Unit Injector Hydraulic Pump Gp     201-4202 Unit Injector Hydraulic Pump Gp
149-1950 Fuel Transfer Pump Gp
0S-1617 Bolts (1)
117-1620 Coupling
6V-8676 O-Ring Seal     The fuel transfer pump was included in the former 144-0835 Unit Injector Hydraulic Pump Gp. Now, the fuel transfer pump must be ordered separately along with the parts that mount the fuel transfer pump to the engine. See the "New Part(s)" column in this table.    
154-6732 Fuel Injection Pump Kit     201-4203 Pump Kit     This adapts the previous pump to the new design.    
165-6881 Seal     201-4155 Seal     This adapts the previous pump to the new design.    
0R-9927 Remanufactured Pump     0R-2236 Remanufactured Pump     Previous pumps are acceptable cores.    
( 1 ) Four 0S-1617 Bolts are required.