1. N

    Truck Repair 1991 Peterbilt 379 Rebuild

    Hello Everyone I purchased a 1991 379 in 2000 with the vision of one day giving it a proper rebuild when the time comes. I built the truck back then and operated it for 15 years until the frame got to the point where it would not safety. Now I guess is the time. Currently has a 3406B that I...
  2. Xenon_Maiden

    What is this key on the dash for?

    There is this key on the dash of my kenworth and I have no idea what it is for. Im afraid to turn it. Any help on this would be really appriciated.
  3. Cbarnes04

    OEM SmartNav - Radio

    Hey everyone, I recently purchased a 2019 Peterbilt 389. The truck has the SmartNav head unit installed. I'm looking to upgrade the sound system in the truck and I'm curious as if anyone has ran an aftermarket amplifier and subwoofer in their truck with the smartnav installed. Obviously I could...
  4. 2016/17 Peterbilt 579 Conventional

    2016/17 Peterbilt 579 Conventional

    Engine Manufacture Cummins Engine Type ISX15 Horsepower 425 Transmission Eaton Fuller 10 Speed OR Eaton Advantage Automatic Ratio 3.25 or 2.64 Sleeper Raised Roof Sleeper Sleeper Size 80 in. Double Bunk Suspension Peterbilt AirFlex Fuel Tank (2) 100 Gallon Tanks DEF Tank 21 Gallons Additional...
  5. TampaTroy

    Peterbilt and cummins are #[email protected]@$€

    It is so frustrating when you send in a question to a big company like Peterbilt and Cummins and they completely blow you off. Not even a "Sorry can't help you with that. That is not our policy to give out that kind of information." I guess they are only interested in selling new trucks not...
  6. N

    1998 Peterbilt 379 turn signal issue. HELP!

    I have a 98 Peterbilt 379. Left turn signal doesn't work, right one works fine and the 4ways work. LED everything for lights. I've checked grounds and tried 2 different flashers and put in a new turn signal switch, have a wiring diagram, following the diagram and according to the diagram there...
  7. chldesign18

    What does a typical day on the road look like?

    Hey guys, I am still working on my design project for my senior year in Industrial Design. The project is re-designing the sleeper cab of a semi-truck. I have specifically been looking at Peterbilt because there is a dealer located near me. For research purposes, I was wondering if you could...
  8. V

    Why the price difference in Peterbilt models?

    So looking at a new truck a 2004 379 is $50,000 but a 2009 386 is $30,000. Why in reality is there such a price difference? Besides looks what really constitutes this price difference?
  9. S

    Peterbilt Rear Window Issues

    Has anyone had any issues with the rear window of 2017/2018 Peterbilt 389 Shortnose. All three of my new tractors rear windows have broken and I am wondering if anyone else is having the same issue.
  10. Getfit Tommy

    My bossman is selling our two Peterbilts for a Cascadia....

    Sorry, but I'm taking real issue over this. I've been driving and loving Pete's for over 34 years now. Started with a 359, then a 379, then a 389 and back to a hot-rodded 379 I don't want to drive a Cascadia. I actually hate them so much that I want to quit and find another job so that I can...
  11. R

    Cabin rec air filter Peterbilt 579 2014

    Hello Where is the Peterbilt 579 air recirculation filter please help
  12. K

    05 peterbilt 587

    I have a 05 peterbilt 587 that has a rumble vibration when turning and its worse when turning while accelerating.. we have replaced all the U Joints and carrier bearing..
  13. K

    Truck projects

    Anyone have any projects they want to work on? Heres one i have in my head but i dont know how the chassis situation will be, idealy the 2 welded together, any one have ideas or feel free to post their own projects
  14. R


    Hello Truckers! Does anyone know where this port is on the 2012 587 Model? I need to plug in my GEOTAB GPS device, and cannot find the port. I had a Freighliner and a Volvo, and this port was visible near the drivers side brake pedals. Any ideas? Thank you in advance!!!!
  15. N

    2012 Peterbilt light wiring NIGHTMARE!!!!!

    I have a 2012 Peterbilt 388 with a ISX 11.9. When you open the door the tail lights light up real dim, shut the door and the lights go out. If I turn on the key and shut the door, the lights stay on. Did some testing and found out its the turn signal wires that are getting power. They have 8 1/2...
  16. S

    Wiring diagram 2004 ,379 peterbilt

    Ive been driving are companies Frankenstein.. and just been try to figure out why the power mirror and heater would work. After checking every thing I could think of . I started tracing wire come to find Out someone never hooked the wiring up wow
  17. S

    Any one know something peterbilt mirror wiring

    Need help creating a Frankenstein
  18. NgocAi

    Starter keeps dying out 2012 peterbilt 587

    Been having issues with a Peterbilt 2012 587 based in California just bought this used truck for hauling goods but during the route my driver called in in Arizona stating that the car wont turn on and the starter had issues. So we went ahead and located the nearest Peterbilt dealer in El Paso...
  19. P

    2007 Peterbilt 387 changed ecm but gauges still acting up...

    2007 Peterbilt 387 with CAT C-15, changed ecm but gauges still acting up...ignition off but gauges are still moving, pls let me know if someone had same issue and what was the fix. Thanks