2004/12/01 Caterpillar

New Ignition Transformers are Used {1561}

Usage:

Engine: G3408 (S/N: 3WR1-UP; 8YR1-UP; 6FW1-UP; BAZ1-UP) G3412 (S/N: R7A1-UP; KAP1-UP; 6ZM1-UP; 5KR1-UP; 9RR1-UP; 8LW1-UP)

Description of Change: New ignition transformers are used for G3400 Engines that are equipped with the Electronic Ignition System (EIS). The new transformers have an improved design that is more robust, which improves the service life.

Adaptable To: The new transformers are direct replacement for the former transformers. Refer to Table 1 for the correct transformers for engines that are equipped with short cylinder heads. Refer to Table 2 for the correct transformers for engines that are equipped with tall cylinder heads.

Table 3 lists the effective engines that are equipped with a standard ignition. Table 4 lists the effective engines that are equipped with a Canadian Standards Association (CSA) ignition

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Table 1
Short Cylinder Heads G3408 165-7310 and 0R-9792 200-0609 and 0R-9484 G3412 165-7312 and 0R-9793 200-0607 and 0R-9486
Ignition Type	Former Ignition Transformer	New Ignition Transformer
Standard Ignition	165-1591	232-6348
CSA Ignition	165-1592	232-6349

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Table 2
Tall Cylinder Heads G3408 206-7748 and 10R-1137 223-6524 and 10R-1745 G3412 206-7745 and 10R-1134 223-6523 and 10R-1719
Ignition Type	Former Ignition Transformer	New Ignition Transformer
Standard Ignition	213-7443	232-6352
CSA Ignition	213-7444	232-6353

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Table 3
Effective Serial Numbers for Engines with Standard Ignition
S/N:6FW00316-UP
S/N:6ZM02580-UP
S/N:8LW00226-UP
S/N:9RR02442-UP
S/N:BAZ02225-UP

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Table 4
Effective Serial Numbers for Engines with CSA Ignition
S/N:6FW00316-UP
S/N:6ZM02598-UP
S/N:8LW00226-UP
S/N:9RR02442-UP
S/N:BAZ02234-UP