2004/06/01 Caterpillar

An Improved Hose Assembly for the Gauge Assembly is Being Used {7454, 7455, 7456}

Usage:

Engines: G3508 (S/N: 4WD1-UP; 9TG1-UP; 2TJ1-UP) G3512 (S/N: 5JD1-UP; 7NJ1-UP; 6JW1-UP) G3516 (S/N: 8LD1-UP; 4EK1-UP; 8PW1-UP) G3524 (S/N: 7SZ1-UP) G3532 (S/N: 8BZ1-UP)

Description of Change: Some hose assemblies for the gauge assemblies have been found in poor condition. The hose assemblies have been soft and spongy because the hose material has appeared to be incompatible with petroleum products. An improved hose assembly for the gauge assembly is being used. The improved hose assemblies utilize the correct hose material for use with oil.

Adaptable To:

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Illustration 1	g01070619
Gauge assembly (1) Hose assembly

The 2T-1411 Hose As has been replaced by the 153-4809 Hose As in production. Table 1 lists the gauge assemblies that use the new hose assembly. Table 2 lists the engines that are effective in production.

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Table 1
Gauge Assemblies
Part Number	Description
130-8160	Coolant Pressure Gauge Gp
130-8162	Water Pressure Differential Gauge Gp
130-8164	Oil Filter Pressure Differential Gauge Gp
130-8169	Pressure Gauge As
130-8170	Pressure Gauge As

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Table 2
Engines in Production
Sales Model	Effective Serial Number
G3508	S/N:4WD00034-UP
	S/N:9TG00380-UP
	S/N:2TJ00179-UP
G3512	S/N:5JD00105-UP
	S/N:7NJ01054-UP
	S/N:6JW00129-UP
G3516	S/N:8LD00135-UP
	S/N:4EK04075-UP
	S/N:8PW00344-UP
G3524	S/N:7SZ00232-UP
G3532	S/N:8BZ00399-UP