Peterbilt 387 electrical problem help

Hello,
Im looking to by peterbelt truck ,
I found 387 modules ,43000$
Do you advice me ,or not
Thanks.

 

what year?
what motor?
what transmission?
how many miles?

 

Sounds like a steal! get it while its hot!

 

Sometimes our 387 when I go to start it no power in cab then later it starts. It cut off once as I was creeping to a stop another time I shut truck off about 20 minutes later no power in cab then a few minutes later it came back on. The first time this occurred was no power to cab after being parked overnight

 

Any update on what the electric problem was

 

I was wondering the same thing.

 

The truck has 4 electric modules. Each has its own fuse in the battery box.
I replaced my starter cables one day. The next day, the trailer lights didn't work. Turned out I broke one wire at the connector. The fuses are located at the front of the battery box.
The four main modules are: right side firewall in engine compartment, glove box, sleeper and trailer control box in frame rail under rear end of cab.

 

Hey , can you tell me/us what it took to fix your truck? I’m catching HADES trying to fix mine