2012/08/21 Caterpillar

Improved Aftercooler Lines Components are Available for Certain C280 and 3600 Engines {1063}

Usage:

3616 1FN

Engine: 3612 (S/N: NZA1-UP; 9RC1-UP) 3616 (S/N: 1PD1-UP; 1FN1-UP)
Marine Engine: C280-12 (S/N: TSJ1-UP; RDW1-UP) C280-16 (S/N: NKB1-UP; A4F1-UP; TDX1-UP)

Description of Change: The improved aftercooler line components include a new cast elbow and a new flexible hose. The new components added to the aftercooler groups reduce the risk of structural damage.

Adaptable To: The improved aftercooler groups are adaptable back to first production of the engines listed above. Refer to Table 1, Illustrations 1 and 2 for the changes to the aftercooler water lines components.

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Table 1
Parts List
New Group	New Part	Former Group Part	Former Part
379-1811 Water Aftercooler Gp	379-1581 Elbow 379-1583 Plate As 369-6019 Tube	185-5775 Water Aftercooler Gp	255-5544 Tube 282-2462 Bracket As 255-5543 Tube
392-9538 Water Aftercooler Gp	379-1581 Elbow 379-1583 Plate As 369-6019 Tube	179-9333 Water Aftercooler Gp	255-5544 Tube 282-2462 Bracket As 255-5543 Tube

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Illustration 1	g03116958
(1) 255-5543 Tube (2) 255-5544 Tube (3) 282-2462 Bracket As

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Illustration 2	g03116979
(4) 369-6019 Tube (5) 379-1581 Elbow

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Table 2
Effectivity
Sales Model	Serial Number
3612	S/N:9RC00534-UP
	S/N:NZA00158-UP
3616	S/N:1FN00158-UP
	S/N:1PD00701-UP
C280-12	S/N:RDW00156-UP
	S/N:TSJ00163-UP
C280-16	S/N:A4F00002-UP
	S/N:NKB00199-UP
	S/N:TDX00165-UP