2008/07/28 Caterpillar

Marine Engine:

3412E MARINE (S/N: 9KS1-UP)

C30 MARINE (S/N: CLX1-UP)

C32 MARINE (S/N: RXB1-UP; RNC1-UP; SLT1-UP; T3T1-UP)

Description of Change: A new alternator adjusting rod is now used on the engines that are listed above. The new alternator adjusting rod is larger in diameter and more durable than the present adjusting rod.

Adaptable To:

Illustration 1	g01563099
(1) Alternator adjusting rod

Table 1

List of Parts from the 156-6925 Alternator Mounting Gp
Item	Quantity	Part Number	Description	Former Part Number
1	1	4P-1667	V-Belt Set	9L-6643
2	2	6V-8182	Nut	7X-0448
3	1	7X-0325	Bolt	8T-8919
4	2	8T-4994	Hard Washer	8T-4122
5	1	252-6498	Rod	4S-5780
6	1	309-0036	Block	8S-5383
7	1	318-1921	Guard	Added

Table 1 lists the parts that are applicable to the serial number prefixes 9KS, CLX, RXB, and SLT. The parts that are listed in Table 1 are required in order to replace the 4S-5780 Rod with the 252-6498 Rod. The part numbers that are listed in Table 1 are direct replacements for the former part numbers.

Table 2

List of Parts from the 309-0037 Alternator Mounting Gp
Item	Quantity	Part Number	Description	Former Part Number
1	1	4P-1667	V-Belt Set	9L-6643
2	2	6V-8182	Nut	7X-0448
3	1	7X-0325	Bolt	8T-8919
4	2	8T-4994	Hard Washer	8T-4122
5	1	8T-9392	Bolt	1A-0168
6	1	252-6498	Rod	4S-5780
7	1	309-0036	Block	8S-5383
8	1	318-1921	Guard	Added

Table 2 lists the parts that are applicable to the serial number prefixes RNC and T3T. The parts that are listed in Table 2 are required in order to replace the 4S-5780 Rod with the 252-6498 Rod. The parts that are listed in Table 2 are direct replacements for the former part numbers.

Table 3

Effective Serial Numbers

S/N:9KS04566-UP

S/N:CLX02938-UP

S/N:RNC03199-UP

S/N:RXB03864-UP

S/N:SLT00173-UP

S/N:T3T00164-UP

The change is effective from the factory with the serial numbers that are listed in Table 3.