2010/02/10 Caterpillar

Engine:

3408 (S/N: 67U1-UP)

3408B (S/N: 67U1-UP)

3408C (S/N: 67U1-UP)

3512B (S/N: S2J1-UP)

G3516 (S/N: WPW1-UP)

Generator Set:

C18 (S/N: GBM1-UP; CYN1-UP; GEN1-UP; MGS1-UP)

Industrial Engine:

3406B (S/N: 6TB1-UP)

C-15 (S/N: BEM1-UP)

C15 (S/N: JRE1-UP)

C18 (S/N: WJH1-UP)

Marine Engine:

3406E (S/N: 9WR1-UP)

C-12 (S/N: 9HP1-UP)

C12 (S/N: C1Z1-UP)

C15 (S/N: RLA1-UP)

C18 (S/N: WKB1-UP; PLE1-UP; CKH1-UP; C1J1-UP; GES1-UP; KJT1-UP; NAX1-UP; NAY1-UP)

C18 (S/N: J2K1-UP; T2P1-UP)

C32 (S/N: RXB1-UP; RNC1-UP)

Description of Change: The new alternator has a higher resistance to possible damage from exposure to heat. Also, the alternator is more resistant to corrosion.

Adaptable To: The new 333-1184 Charging Alternator Gp is a direct replacement for the 4N-3986 Charging Alternator Gp on the serial numbers that are listed above.

Illustration 1	g02091989
4N-3986 Charging Alternator Gp (1) Negative terminal (2) Positive terminal

Illustration 2	g02091994
333-1184 Charging Alternator Gp (3) Positive terminal (4) Negative terminal

Refer to Illustration 1 and Illustration 2 for the differences in the locations of the terminals on the new alternator and the existing alternator.

This change is effective for the serial numbers that are listed in Table 1.