Carrier profile · USDOT 44035 · MC-144606 · Updated Jun 13, 2026

Duncan & Son Lines Inc

259 power unitsavg 4.7 yrNational · 20 statesBUCKEYE, AZ88/100
CARRIER ACTIVEMC-144606 ACTIVERATED SATISFACTORYHAZMAT
Verified linksduncantruckingltd.comFMCSA SAFER

Equipment

Haulable capacity (power units only — trailers are towed context), equipment mix, and the VIN-decoded unit roster. Click any VIN to trace that unit across every carrier that has run it.

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150)
259
Observed power (24 mo)
217
Trailers (towed)
377

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

Fleet age· model years · decoded VINs

4.7 yr
Average age
2026
Newest model yr
1997
Oldest model yr
29.3%
VINs decoded

Unit roster· VIN-decoded from inspections · NHTSA vPIC

VINTypeYearMakeModelInsp.Last seen
1XKYD49X8RJ378254View sourced platform decodeTruck-Tractor2024KENWORTHT6806Jun 28, 2026
1XKYD49X6RJ320210View sourced platform decodeTruck-Tractor2024KENWORTHT6805Jul 22, 2026
3AKJHHDR3PSUG4020View sourced platform decodeTruck-Tractor2023FREIGHTLINERCascadia5Jul 17, 2026
3AKJHHDR4PSUG4026View sourced platform decodeTruck-Tractor2023FREIGHTLINERCascadia5Jul 7, 2026
1XKYD49X7RJ383509View sourced platform decodeTruck-Tractor2024KENWORTHT6805May 29, 2026
1XKYD49X9RJ383513View sourced platform decodeTruck-Tractor2024KENWORTHT6805May 21, 2026
1XKYD49X4PJ252485View sourced platform decodeTruck-Tractor2023KENWORTHT6804Aug 3, 2026
1XKYD49X8RJ383518View sourced platform decodeTruck-Tractor2024KENWORTHT6804Jul 27, 2026
3AKJHHDR1MSMU0993View sourced platform decodeTruck-Tractor2021FREIGHTLINERCascadia4May 19, 2026
1XKYD49X0RJ320218View sourced platform decodeTruck-Tractor2024KENWORTHT6804May 3, 2026
1XKYD49X4RJ383516View sourced platform decodeTruck-Tractor2024KENWORTHT6804Mar 26, 2026
1XKYD49X1RJ383490View sourced platform decodeTruck-Tractor2024KENWORTHT6804Mar 6, 2026
1XKYD49X7PJ252478View sourced platform decodeTruck-Tractor2023KENWORTHT6804Feb 8, 2026
3AKJHHDR0PSUG4024View sourced platform decodeTruck-Tractor2023FREIGHTLINERCascadia4Jan 27, 2026
1XKYD49X0PJ218317View sourced platform decodeTruck-Tractor2023KENWORTHT6804Jan 23, 2026
1XKYD49X2RJ383501View sourced platform decodeTruck-Tractor2024KENWORTHT6804Dec 31, 2025
1XKYD49X4RJ320223View sourced platform decodeTruck-Tractor2024KENWORTHT6804Oct 31, 2025
1XKYD49X6RJ383503View sourced platform decodeTruck-Tractor2024KENWORTHT6804Jul 24, 2025
3AKJHHDR8TSWX6815View sourced platform decodeTruck-Tractor2026FREIGHTLINERCascadia3Aug 4, 2026
1XPBD49X1RD880618View sourced platform decodeTruck-Tractor2024PETERBILT5793Aug 3, 2026
1XKYD49X1PJ252489View sourced platform decodeTruck-Tractor2023KENWORTHT6803Jul 29, 2026
1XKYD49X8RJ320208View sourced platform decodeTruck-Tractor2024KENWORTHT6803Jul 27, 2026
1XPBD49X4PD880612View sourced platform decodeTruck-Tractor2023PETERBILT5793Jul 27, 2026
1XKYD49X5PJ218295View sourced platform decodeTruck-Tractor2023KENWORTHT6803Jul 23, 2026
1UYVS2534T3538655View sourced platform decodeTrailer2026UTILITY TRAILER MAUtility Trailer Manufacturer3Jul 22, 2026
1XKYD49X1RJ320213View sourced platform decodeTruck-Tractor2024KENWORTHT6803Jul 15, 2026
3AKJHHDR6RSUX4161View sourced platform decodeTruck-Tractor2024FREIGHTLINERCascadia3Jul 8, 2026
1XKYD49X8RJ347425View sourced platform decodeTruck-Tractor2024KENWORTHT6803Jul 7, 2026
1XKYD49X6PJ252469View sourced platform decodeTruck-Tractor2023KENWORTHT6803Jul 2, 2026
1XKYD49X4RJ320206View sourced platform decodeTruck-Tractor2024KENWORTHT6803Jun 25, 2026
1XKYD49X4RJ347423View sourced platform decodeTruck-Tractor2024KENWORTHT6803Jun 22, 2026
1XKYD49XXPJ252491View sourced platform decodeTruck-Tractor2023KENWORTHT6803Jun 13, 2026
1XKYD49X7PJ252495View sourced platform decodeTruck-Tractor2023KENWORTHT6803Jun 1, 2026
1XKYD49X2PJ252470View sourced platform decodeTruck-Tractor2023KENWORTHT6803May 26, 2026
1XKYD49X1RJ383506View sourced platform decodeTruck-Tractor2024KENWORTHT6803May 26, 2026
1XKYD49X0PJ252483View sourced platform decodeTruck-Tractor2023KENWORTHT6803May 23, 2026
1XKYD49X8PJ252490View sourced platform decodeTruck-Tractor2023KENWORTHT6803May 21, 2026
1XKYD49XXRJ320226View sourced platform decodeTruck-Tractor2024KENWORTHT6803May 21, 2026
1XKYD49X5RJ320215View sourced platform decodeTruck-Tractor2024KENWORTHT6803May 19, 2026
3AKJHHDR1PSUG4016View sourced platform decodeTruck-Tractor2023FREIGHTLINERCascadia3Apr 22, 2026
1XKYD49X8RJ383485View sourced platform decodeTruck-Tractor2024KENWORTHT6803Apr 20, 2026
1XKYD49X1PJ218293View sourced platform decodeTruck-Tractor2023KENWORTHT6803Apr 16, 2026
1XKYD49X2PJ218318View sourced platform decodeTruck-Tractor2023KENWORTHT6803Apr 13, 2026
1XKYD49X0PJ218334View sourced platform decodeTruck-Tractor2023KENWORTHT6803Apr 8, 2026
3AKJHHDR7PSUG4019View sourced platform decodeTruck-Tractor2023FREIGHTLINERCascadia3Apr 6, 2026
1XPBD49X7RD880624View sourced platform decodeTruck-Tractor2024PETERBILT5793Apr 1, 2026
1XPBD49X5PD880621View sourced platform decodeTruck-Tractor2023PETERBILT5793Mar 23, 2026
1XKYD49X9RJ347420View sourced platform decodeTruck-Tractor2024KENWORTHT6803Mar 11, 2026
1XKYD49X7RJ320216View sourced platform decodeTruck-Tractor2024KENWORTHT6803Mar 3, 2026
1XKYD49X8MJ461532View sourced platform decodeTruck-Tractor2021KENWORTHT6803Feb 28, 2026
1XKYD49X0PJ218320View sourced platform decodeTruck-Tractor2023KENWORTHT6803Feb 12, 2026
1XKYD49X8PJ218310View sourced platform decodeTruck-Tractor2023KENWORTHT6803Feb 11, 2026
1XKYD49X9PJ218297View sourced platform decodeTruck-Tractor2023KENWORTHT6803Jan 13, 2026
1XKYD49X3PJ252493View sourced platform decodeTruck-Tractor2023KENWORTHT6803Dec 31, 2025
1XKYD49X8RJ320225View sourced platform decodeTruck-Tractor2024KENWORTHT6803Dec 23, 2025
1XKYD49X1PJ218326View sourced platform decodeTruck-Tractor2023KENWORTHT6803Nov 4, 2025
3AKJHHDR4RSUX4157View sourced platform decodeTruck-Tractor2024FREIGHTLINERCascadia3Oct 6, 2025
1XKYD49X6RJ383520View sourced platform decodeTruck-Tractor2024KENWORTHT6803Aug 13, 2025
1XKYD49X3PJ252476View sourced platform decodeTruck-Tractor2023KENWORTHT6803Aug 4, 2025
1XKYD49X1PJ218312View sourced platform decodeTruck-Tractor2023KENWORTHT6803Aug 4, 2025

Showing 60 of 200 unique VINs · most-inspected first.