Carrier profile · USDOT 2532126 · Updated Jun 13, 2026
WAC LLC
DBA STAMBACK SEPTIC SERVICE
32 power unitsavg 7.6 yrLocal · 1 statesWILLCOX, AZ74/100
AUTHORITY STATUS UNKNOWN
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)
- 32
- Observed power (24 mo)
- 8
- Trailers (towed)
- 0
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2023
Newest model yr
2005
Oldest model yr
12.5%
VINs decoded
Unit roster· VIN-decoded from inspections · NHTSA vPIC
| VIN | Type | Year | Make | Model | Insp. | Last seen |
|---|---|---|---|---|---|---|
| 1NP3LJ0X8MD745805 | Truck | 2021 | PETERBILT | 348 | 3 | Jun 6, 2025 |
| 5VCCCLEH3PC241177 | Power unit | 2023 | AUTOCAR | — | 1 | Mar 12, 2026 |
| 1NKDL50X36J129337 | Power unit | 2006 | KENWORTH | — | 1 | Oct 14, 2025 |
| 2HSCEAPR75C005941 | Power unit | 2005 | INTERNATIO | — | 1 | Aug 29, 2025 |
| 2NP8LJ0X3PM883899 | Power unit | 2023 | PETERBILT | — | 1 | Apr 2, 2025 |
| 3BKZLP0X1PF231673 | Power unit | 2023 | KENWORTH | — | 1 | Dec 26, 2024 |
| 5VCCCLEJ2PC240427 | Power unit | 2023 | AUTOCAR | — | 1 | Sep 18, 2024 |
| 5VCCCLEJXPC241969 | Power unit | 2023 | AUTOCAR | — | 1 | Aug 19, 2024 |
Showing 8 · most-inspected first.