RETAINER 7M0479 - Caterpillar

Generator SetC18 MARINE GS (S/N: GBM1-UP; MGS1-UP)Industrial EngineC-15 IND (S/N: BEM1-UP)C15 IND (S/N: JRE1-UP; MCW1-UP)C18 INDUSTRIAL (S/N: WJH1-UP; WRH1-UP)Marine EngineC15 MARINE (S/N: RLA1-UP)C18 MARINE (S/N: PLE1-UP; C1J1-UP)C18 MARINE ENG (S/N: T2P1-UP)Petroleum EngineC15 PETROLEUM (S/N: JDK1-UP; JDY1-UP)C18 PETROLEUM (S/N: WJW1-UP)Description Of Change: The improved alternator mounting groups offer resistance to vibration. The improved alternator mounting groups utilize isolation mounts.Adaptable To: The improvement has been made to the alternator mounting groups listed in Table 1.
Table 1
Part Number
286-8180
286-8179
186-3652
186-3653 Reference: Special Instruction, SEHS0125, Improved Alternator Mounting Groups Are Used for Certain C15 and C18 Industrial, Marine, and Petroleum Engines for additional information.Refer to Table 2 for a list of part numbers needed to install the improved alternator mounting groups.
Table 2
New Part Number Description Quantity
054-3788 Washer 1
0L-1329 Bolt 1
0S-1587 Bolt 1
0S-1588 Bolt 2
1F-7958 Full Nut 1
2B-0947 Bolt 1
437-7746 Mount 2
444-6549 Rod As 1
451-8195 Rod 1
479-0175 Support Bracket 1
481-2522 Block 1
481-3933 Block 1
5L-5012 V-Belt Set 1
5P-8245 Hard Washer 2
6V-2605 Taperlock Stud 1
7X-3374 Full Nut 3
9H-8260 Bolt 1
9X-6458 Hard Washer 2 This change is effective for the serial numbers listed in Table 3.
Table 3
Effective Serial Numbers
S/N:BEM07171-UP
S/N:JDK00570-UP
S/N:JDY00769-UP
S/N:JRE14639-UP
S/N:MCW09675-UP
S/N:RLA01079-UP
S/N:C1J01135-UP
S/N:GBM01449-UP
S/N:MGS00921-UP
S/N:PLE00644-UP
S/N:T2P5073-UP
S/N:WJH09626-UP
S/N:WJW00296-UP
S/N:WRH08009-UP