BOLT 7F4556 - Caterpillar

Electric Power Generation:
3412 (S/N: 4BZ1-UP)
Engine:
3304 (S/N: 04B1-UP; 05B1-UP; 10E1-UP; 13E1-UP; 83Z1-UP)
3304B (S/N: 1NS1-UP)
3306 (S/N: 66D1-UP; 67D1-UP; 64Z1-UP; 85Z1-UP; 70R1-UP)
3306B (S/N: 8JJ1-UP)
3406C (S/N: 2AM1-UP)
3408 (S/N: 67U1-UP; 99U1-UP; 78Z1-UP)
3408B (S/N: 9TD1-UP; 67U1-UP; 99U1-UP; 78Z1-UP)
3408C (S/N: TAM1-UP; 67U1-UP; 99U1-UP; 78Z1-UP)
3412 (S/N: 7HG1-UP; 2WJ1-UP; 60M1-UP; 38S1-UP; 81Z1-UP)
3412C (S/N: 5FL1-UP; 60M1-UP; DJN1-UP; 9EP1-UP; RLR1-UP; 9BR1-UP; BCW1-UP; LRY1-UP; 81Z1-UP)
D330C (S/N: 04B1-UP; 05B1-UP)
D333C (S/N: 66D1-UP; 67D1-UP; 70R1-UP)
G3304 (S/N: H4D1-UP; 37Y1-UP)
G3304B (S/N: A4E1-UP)
G3306 (S/N: JCA1-UP; H6D1-UP; CNR1-UP; 07Y1-UP)
G3306B (S/N: R6S1-UP)
Generator Set:
3406 (S/N: 4ZR1-UP; 75Z1-UP)
3406C (S/N: KPS1-UP; PFH1-UP; 4BM1-UP; 9ES1-UP)
3412C (S/N: BAX1-UP)
Industrial Engine:
3406 (S/N: 6TB1-UP; 90U1-UP)
3412C (S/N: 38S1-UP)
Marine Engine:
3406 (S/N: 91U1-UP)
3406C (S/N: 1SS1-UP)
3408C (S/N: 1TS1-UP)
3412E (S/N: 9KS1-UP; 9PW1-UP)
Engine News SEBD9573, 5 January 2009, "A New Connecting Rod Bearing is Available". Disregard the previous article. This article has been updated with additional part numbers and effectivity, refer to the article that follows.The new bearing is adaptable back to first production on the engines that are listed above.Refer to Table 1 for the part number of the old bearing and the replacement part number.
Table 1
Old part number     Replacement part number     Application    
4W-5739     328-5572     Diesel    
4W-5739     334-2669     Natural Gas    
9Y-7735     328-5573     Diesel    
9Y-9497     328-5574     Diesel