KIT-TUBE 3171491 - Caterpillar

Illustration 1 g00356644
A three-pin connector (1) is located at the rear of the cab on the right side. The three-pin connector is a 12 volt connector. See Table 1 for more information.
Table 1
Pins for the Three-Pin Connector    
Pin    Circuit    
2     12 Volt and 30 Ampere (1)    
3     12 Volt and 8 Ampere (2)    
4     Ground    
( 1 ) Pin 2 is controlled by the engine start switch.
( 2 ) Pin 3 is powered continuously.A 121-6716 Auxiliary Power Connecting Kit is available from any Caterpillar dealer. See Table 2 for the components that are needed in order to assemble the mating connector.
Table 2
Components for Mating Connector    
Pt. No.    Description    Quantity    
126-8295     Housing     1    
126-8296     Terminal (8 Ampere)     1    
126-8297     Terminal (30 Ampere)     2    
038-7063     Clamp     1