2013/11/13 Caterpillar

New Exhaust Temperature Sensor Groups Are Used on Certain 3500, 3600, C175, and C280 Marine and Petroleum Off-Shore Applications {1408, 1900, 1906, 1919, 1921, 1922, 1928, 1929, 7498}

Usage:

3616 1PD

Engine: 3512C (S/N: T3P1-UP; T3R1-UP; T3W1-UP) 3516C (S/N: TTJ1-UP; TKS1-UP; TKT1-UP; TKY1-UP) 3606 (S/N: 8RB1-UP) 3608 (S/N: 6MC1-UP) 3612 (S/N: 9RC1-UP) 3616 (S/N: 1PD1-UP) C175-16 (S/N: M6A1-UP; M6B1-UP; P6L1-UP; P5P1-UP) C280-16 (S/N: NKB1-UP; A4F1-UP; TDX1-UP)
Marine Engine: C280-12 (S/N: TSJ1-UP; RDW1-UP) C280-6 (S/N: SCB1-UP; LDL1-UP) C280-8 (S/N: PKA1-UP; NDT1-UP)
Petroleum Engine: 3516C (S/N: PES1-UP)

Description of Change: The new thermal couples have a higher shell to thermocouple wire resistance which eliminates inaccuracies in the pyrometer read out.

Adaptable To: The new temperature sensor groups replace the existing temperature sensor groups. Refer to Table 2 for the new and former part numbers. The new temperature sensor groups are adaptable back to first production on the serial numbers listed above.

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Table 1
New Part Number	Former Part Number
383-2982	262-1957
383-2985	114-1653

This change is effective for the serial numbers listed in Table 2.

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Table 2
Effective Serial Numbers
S/N:T3P00204-UP
S/N:T3R00209-UP
S/N:T3W00202-UP
S/N:PES00687-UP
S/N:TTJ00365-UP
S/N:TKS00206-UP
S/N:TKT00202-UP
S/N:TKY00208-UP
S/N:8RB10286-UP
S/N:6MC00822-UP
S/N:9RC00542-UP
S/N:1PD00718-UP
S/N:M6A00109-UP
S/N:M6B01002-UP
S/N:P5P00002-UP
S/N:P6L01010-UP
S/N:RDW00156-UP
S/N:TSJ00166-UP
S/N:A4F00002-UP
S/N:NKB00199-UP
S/N:TDX00165-UP
S/N:LDL00117-UP
S/N:SCB00128-UP
S/N:NDT00149-UP
S/N:PKA00171-UP