1M1Mack trucks

Held by Mack Trucks Inc. · registered in the United States

WMI 1M1 shares most of its model list with three other codes. Its rules place assembly in three countries. The same rules start at model year 1981 and have no end year. Its rules name 100 percent of the 53 models found under all 3 codes of Mack Trucks.

Models in the decoding rules, by model year

  1. CF1981–1994
  2. CH1981–2005
  3. CL1981–2009
  4. Cowl-Chassis1981–1994
  5. CS1981–2008
  6. DM1981–2008
  7. DMC1981–1994
  8. DML1981–1994
  9. DMM1981–2005
  10. F1981–1994
  11. FM1981–1994
  12. FR11981–1994
  13. LE1981–2008
  14. MC1981–2005
  15. MCE1981–1994
  16. MH1981–1994
  17. MR1981–2008
  18. MRE1981–1994
  19. MS1981–2005
  20. R1981–1994
  21. RB1981–2008
  22. RD1981–2005
  23. RL1981–1994
  24. RM1981–1994
  25. RS1981–1994
  26. RW1981–1994
  27. RWL1981–1994
  28. RWS1981–1994
  29. U1981–1994
  30. WL1981–1994
  31. WS1981–1994
  32. CHN1995–2009
  33. CT (Granite)1995–2009
  34. CV (Granite)1995–2009
  35. CX (Vision)1995–2005
  36. CXN (Vision)1995–2008

Also in the rules (17 more): MV (Freedom), CHU (Pinnacle), CTP (Granite), CXP (Pinnacle), CXU (Pinnacle), GU (Granite), LEU (TerraPro), MRU (TerraPro), TD (Titan), LR, Granite, Pinnacle, Terrapro, Anthem, MD, Pioneer, Keystone.

Where the rules place assembly

Plant countriesUnited States, Canada, France

Plant locations namedMacungie; Salem; New River Valley Dublin; Winnsboro; Philadelphia; Annonay; Allentown; Hayward; Stockertown; Oakville; Blainville; Sacramento; Dublin; Pleasant Grove

Bodies and power

Body classesTruck, Truck-Tractor, Incomplete - Glider, Bus, Incomplete - Bus Chassis

Primary fuelsDiesel, Natural Gas, Electric, Gasoline, Compressed Natural Gas (CNG)

Electrified versionsBattery electric

Codes with largely the same models

These codes have no page of their own: at least half of the models in their rules also appear under 1M1. The last column counts the shared models.

CodeHolderVehicle typeModel yearsShared models
1M2Mack Trucks Inc.incomplete vehicles (chassis)1981–open53 of 53
VG6Renault Groupincomplete vehicles (chassis)1981–200537 of 37
VG8Renault Groupbuses1986–200537 of 37

Compared with the closest code, 1M3

1M3 is held by Mack Trucks Inc. Measured by the overlap of the two model lists, it is the code closest to 1M1 apart from those listed above.

Models in both46

Only under 1M1Granite, Pinnacle, Terrapro, Anthem, MD, Pioneer, Keystone

Model years1M1: 1981–open · 1M3: 1981–2016

Vehicle type1M1: trucks · 1M3: incomplete vehicles (chassis)

Other codes held by Mack Trucks

CodeVehicle typeMakesModel yearsModels
1M3incomplete vehicles (chassis)Mack1981–201646

All 3 codes of Mack Trucks

Mack under other holders

Models named in each code's rules

  1. 2M1 Mack Canada Inc.Canada37
  2. 2M2 Mack Canada Inc.Canada37
  3. 2M3 Mack Canada Inc.Canada37
  4. 3X1 Volvo Group Operations Mexico, S.A. de C.V.Mexico8
  5. 3X2 Volvo Group Operations Mexico, S.A. de C.V.Mexico8

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