RACE-BEARING INNER 5P3419 - Caterpillar

Generator Set:
3054 (S/N: CHN1-UP; TCN1-UP)
3056 (S/N: SNX1-UP)
C1.5 (S/N: NCA1-UP; N3B1-UP)
C2.2 (S/N: NCB1-UP; N4C1-UP; XYE1-UP)
C2.2 GEN SET (S/N: N4B1-UP)
C3.3 (S/N: X3B1-UP; NCC1-UP; N3C1-UP; N3X1-UP)
C4.4 (S/N: XYC1-UP; D4D1-UP; NCD1-UP; N4D1-UP; XYD1-UP; NCE1-UP; N4E1-UP; N4R1-UP; N4X1-UP)
C6.6 (S/N: SDA1-UP; N6D1-UP)
A new Low Coolant Level Sensor has been incorporated in the Generator Set Packages that are scheduled for new production. Additionally, the new Low Coolant Level Sensor is available as a replacement part for field service.The new Low Coolant Level Sensor has improved reliability. Cold weather operation has also been improved. With these improvements, false nuisance alarms have been eliminated.
Illustration 1 g01418851
Liquid Level Sensor AssemblyThe new sensor is a one-piece unit that is a direct replacement for the existing Low Coolant Level Sensors.Parts List
Table 1
New Part Number    Previous Part Number    
308-3673 Liquid Level Sensor Assembly (COOLANT) (1/4-IN NPT)     264-6370 Sensor Assembly    
260-4623 Liquid Level Switch
308-3674 Liquid Level Sensor Assembly (COOLANT) (1/2-IN NPT)     260-4607 Coolant Level Sensor    
260-4623 Liquid Level Switch Wiring Table
Table 2
Wire    Function    
Black     -VE Battery (0V Supply)    
Yellow     Output (200mA max - active low) (1)    
Red     +VE Battery (+V Supply (8V to 30V))    
( 1 ) The output is active low when there is a low coolant level.