CASE ASSEM. 5S7128 - Caterpillar

Generator Set:
C175-16 (S/N: WYB1-UP)
Engine:
3512B (S/N: PTF1-UP)
3512C (S/N: TKP1-UP; T3P1-UP; T3R1-UP; T3S1-UP; LLT1-UP; T3W1-UP; T3Y1-UP)
3516C (S/N: SCJ1-UP; SCK1-UP; TKR1-UP; TKS1-UP; TKT1-UP; TKX1-UP; TKY1-UP)
C175-16 (S/N: P6L1-UP)
C280-16 (S/N: NKB1-UP; TDX1-UP)
Marine Engine:
C280-12 (S/N: TSJ1-UP; RDW1-UP)
Engine News SEBD9795, 23 July 2012, "A New Pyrometer Is Available for Certain 3500, C175, and C280 Engines". The original article was revised to add effective serial numbers. No other information has changed.The new 343-4631 Exhaust Temperature Module is available to replace the 264-0645 Exhaust Temperature Module .The new 343-4631 Exhaust Temperature Module has the following improvements:
A new seal that prevents moisture entry
The ability to communicate with and receive updates from Caterpillar Electronic Technician (ET)
New software and firmware that eliminates false diagnosticsThe new pyrometer is adaptable to the engines listed above back to first production.The effective serial numbers are listed in Table 1.
Table 1
Sales Model     Serial Number    
C175-16     S/N:WYB01127    
S/N:P6L001010
3516C     S/N:TKS00206    
S/N:TKT00200
S/N:TKY00204
C280-12     S/N:RDW00156    
S/N:TSJ00300
C280-16     S/N:NKB00300    
S/N:TDX00165