The specs are whatever the customer orders them to be. Call a Peterbilt dealership and give them the last 8 digits of the VIN and they can tell you what those specs are. You either have a line haul tractor or a vocational truck. You either have a Cat or Cummins engine. That's all I can tell you with the info provided.
First indication is model year. The 379 replaced the 359 in production in 1987, and was manufactured until 2007.
1987
2007
You can call the service department of any Peterbilt dealership and they'll tell you.
It is without a doubt the: 379
No, a 379 Peterbilt hood will not fit on a 2009 365 Peterbilt. The two models have different designs and dimensions, with the 365 being a medium-duty truck and the 379 a heavy-duty model. Each hood is specifically engineered to fit its respective chassis and engine configurations, making them incompatible.
I have a 2006 peterbilt 379 with a c -13 there is a cat service bulletins on heads cracking i know this as i had to due my motor in Sept 09 for a cost of 32 000.
Peterbilt's flagship truck, the 379, was in production from 1987 - 2007. It's hood was made from aluminum and it was the last conventional over-the-road truck available with this type of hood.
under the dash on the kick panel to the left if your looking at the steering wheel
About a half hour, if you know what you're doing.
Bad wiring or bad outlet.
Need to know the model. The 379 and 387 (just two examples) will differ.