2007/11/19 Caterpillar

The Air Filter Element Assembly is Updated {1051, 1054}

Usage:

3508 1ZF

Engine: 3508 (S/N: 1ZF1-UP) 3512 (S/N: 3YF1-UP) 3516 (S/N: 4XF1-UP; 5SJ1-UP; 3NS1-UP; 25Z1-UP) 3516B (S/N: 7RN1-UP)
Generator Set: C18 (S/N: C6C1-UP; G4C1-UP; STD1-UP; STM1-UP; EKW1-UP)

Description of Change:

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Illustration 1	g01433552
(1) Gasket (2) Air filter element

Primary air filter element assembly (2) has been updated. Gasket (1) is now glued to the primary air filter element assembly. This ensures that the gasket stays in position when the engine is in operation. Do not try to remove the gasket.

Adaptable To: The new air filter element assemblies are a direct replacement for the former air filter element assemblies. The new air filter element assemblies are adaptable back to the beginning of production of the listed engines and generator sets. Refer to Table 1 for the part numbers.

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Table 1
Serial Number Prefix	Air Cleaner Group	Air Filter Element As
		Standard Efficiency		Ultrahigh Efficiency
		Former	New	Former	New
S/N:25Z S/N:1ZF S/N:3YF S/N:4XF S/N:3NS	9Y-7666	9Y-7662	251-5885	132-3173	292-5862 ⁽¹⁾
S/N:7RN	9Y-8930
S/N:STM S/N:G4C S/N:STD S/N:EKW	241-6668	1W-3637	251-5886	132-7172	292-5863 ⁽²⁾
	243-0897

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^( 1 )	The 292-5862 Air Filter Element As is an optional service replacement for the 251-5885 Air Filter Element As .
^( 2 )	The 292-5863 Air Filter Element As is an optional service replacement for the 251-5886 Air Filter Element As .