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4UZFreightliner and Mitsubishi Fuso incomplete vehicles (chassis)

Held by Freightliner Custom Chassis Corp. · registered in the United States

WMI 4UZ names 80 models, more than any of the other 26 WMIs that decode Freightliner. Its rules place assembly in seven countries. The same rules start at model year 1995 and have no end year. Electrified versions appear in its rules: battery electric.

Models in the decoding rules, by model year

  1. L-Line1995
  2. M-Line1995
  3. S-Line1995
  4. T-Line1995
  5. U-Line1995
  6. V-Line1995
  7. X-Line1995
  8. FS 65 Chassis1996–2027
  9. MB Chassis1996–2027
  10. MC Chassis1996–2000
  11. MT 35 Chassis1996–2027
  12. MT 55 Chassis1996–2027
  13. MT45 Chassis1996–2027
  14. SBFD1996–2000
  15. SBRD Chassis1996–1999
  16. VC Chassis1996–2000
  17. VCL Chassis1996–2027
  18. XB Chassis1996–2027
  19. XC Chassis1996–2027
  20. FB 65 Chassis2000–2027
  21. M-B MBO Chassis2000–2027
  22. XCS Chassis2000
  23. B2 Bus Chassis2001–2027
  24. B2 HEV 106 CONVENTIONAL BUS CHASSIS2001–2027
  25. EF Front Engine Bus Chassis2001–2027
  26. EFX Front Engine Bus Chassis2001–2027
  27. ER Rear Engine Bus Chassis2001–2015
  28. FBX 106 Shuttle Bus Chassis2001–2027
  29. MB55 Chassis2001–2027
  30. MBC Front Engine Commercial Bus Chassis2001–2027
  31. MBO Chassis2001–2024
  32. MC 45 Chassis2001–2027
  33. MC Front Engine Motor Home Chassis2001–2027
  34. MC HEV Front Engine Motor Home Chassis2001–2027
  35. MCG Front Gasoline Engine Motor Home Chassis2001–2027
  36. MCL Front Engine Motor Home Chassis2001–2027

Also in the rules (44 more): MT 45 HEV Chassis, MT 45G Front Gasoline Engine Walk in Van Chassis, MT 55G Front Gasoline Engine Walk in Van Chassis, MT-55 HEV Chassis, MT-55 HHV Chassis (Hydraulic Hybrid Vehicle), MT45EV, OMC Chassis, S2 106 Bus Chassis, S2C 106 Conventional Cab & Chassis, S2G Conventional Full Cab and Chassis, S2RV 106 Conventional cab & Chassis, XB Raised Rail Rear Engine Shuttle Bus Chassis, XB Straight Rail Rear Engine Motor Home Chassis, XBP Rear Engine Commercial Bus Chassis, XBS Straight Rail Rear Engine Shuttle Bus Chassis, XC Formed Rail Rear Engine Motor Home Chassis, XC Modular Rail Rear Engine Motor Home Chassis, XC Raised Rail (Lowered Engine) Rear Engine Motor Home Chassis, XC Raised Rail Rear Engine Motor Home Chassis, XC Rear Engine Motor Home Chassis GLIDER, XC-F Formed Rail Rear Engine Motor Home Chassis, XC-L Lowered Rail Rear Engine Motor Home Chassis, XC-M Modular Rail Rear Engine Motor Home Chassis, XC-P Powerliner Raise Rail Rear Engine Motor Home Chassis, XC-R Raised Rail Rear Engine Motor Home Chassis, XC-S Straight Rail Rear Engine Motor Home Chassis, XCA Chassis, B2 106 Electric Conventional Chassis, HDX Rear Engine Bus Chassis, XBA Arboc Rail Rear Engine Commercial Bus Chassis, XBR Rail Rear Engine Shuttle Bus Chassis, XBR Rear Engine Shuttle Bus Chassis, B2 106 Conventional Chassis, Bruin Cab Chassis, FE140 (FECZTS), FE160 (FEC7TS), FE160 (FEC7TW), FE180 (FEC9TS), MT-50E Electric Front engine van chassis, B2G 106, B2LPG 106, EB2 106, EHDX, S2LG 106.

Where the rules place assembly

Plant countriesUnited States, Mexico, Israel, Australia, Canada, Saudi Arabia, South Africa

Plant locations namedGaffney; Mt. Holly; Santiago; Portland; St. Thomas; Cleveland; Burnaby; Monterrey; M-B South Africa; Santiago Tianguistenco

Bodies and power

Body classesStep van, Incomplete - Bus Chassis, Chassis cab (single), Incomplete - Motor Home Chassis, Incomplete - School Bus Chassis, Incomplete - Commercial Bus Chassis, Incomplete - Shuttle Bus Chassis, Incomplete - Glider, Chassis cab, Bus

Primary fuelsGasoline, Diesel, Compressed Natural Gas (CNG), Natural Gas, Electric, Liquefied Petroleum Gas (propane or LPG)

Freightliner under other holders

Models named in each code's rules

  1. 1FU Daimler Truck North America LLCUnited States48
  2. 1FV Daimler Truck North America LLCUnited States48
  3. 3AK a small manufacturer (name not shown)Mexico46
  4. 3AL a small manufacturer (name not shown)Mexico46
  5. 2FU Freightliner CorporationCanada24
  6. 2FV Freightliner CorporationCanada24
  7. 3FF Freightliner CorporationMexico24
  8. AFV Freightliner CorporationSouth Africa21

Other codes starting with 4U

  • 4U0J & L's Cargo Express, trailer
  • 4U1Dynaweld, trailer
  • 4U3Bull Moose Heavy Haul, trailer
  • 4U7Country Coach, bus
  • 4U8Dri-Doc, trailer
  • 4UFArctic Cat, off-road vehicle
  • 4UGAbu Trailers, trailer
  • 4UJAirstream, trailer
  • 4ULH & S Manufacturing, trailer
  • 4USBMW Manufacturer Corporation / BMW North America, passenger car
  • 4UVMac-Lander, trailer
  • 4UYTechsys Chassis, trailer

Source: NHTSA vPIC, October 2026 release (database updated October 17, 2026). How the figures are counted: How the catalog is read.