POWERHEAD AS 1970068 - Caterpillar

Table 1
Old Fuel Injector Group Part Number     New Fuel Injector Group Part Number     Serial Number Prefix Usage    
293-4071     328-2573     S/N:LAY, KJL, DMK, TBC, LGP, SKL, LFM, GCT, SMC, EXL, JEK, WFH, DJG, WCG, DPS, JHB, DLM, JDL, PEZ, LKJ, MTJ, JWD, LAE, GMT, RFC, EXW, 511    
293-4072     328-2574     S/N:MWP, EAH, RAS, JLP, GGE, FFK, LRM, NBD, B6H, ERN, THJ, T2Y, LCJ, MEY, LEM, H3K, L2K, PEL, JJM, DBZ, BYN, B9L, LDX, B9E, DEX, DEY, BZR, 541, BXG, 521, 522, 552    
293-4073     328-2576     S/N:D3D, H3D, GMN    
295-1411     328-2585     S/N:B9D, K5K, N1A, M1G, JJG, PKE, GPB, N4A, A3R, J5J, B9M, EJC, SYM, DBH, C3N, 525, M3G, GTN, CJX, T2D, FAC, K6K, SCR, EAD, M5G, J6J, DFP, 535, MCL, KJR, BPW, 545, EDF, KDG, KGG, CJM, C8L, A6P, MKR, KAY, BNW, C7K, PEH, C9M, BXW    The new fuel injectors are direct replacements for the old fuel injectors. Refer to Table 1. The new fuel injectors are adaptable back to the first production of the listed machines. The equivalent latest improved remanufactured fuel injectors are available for the applicable fuel injector groups that are listed in Table 1.
Table 2
Effective Serial Numbers    
S/N:C7C14328-UP    
S/N:KHX13303-UP    
S/N:THX17754-UP    
S/N:THY06248-UP    The change is effective at the factory with the serial numbers of the machine engines that are listed in Table 2.