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
- CF1981–1994
- CH1981–2005
- CL1981–2009
- Cowl-Chassis1981–1994
- CS1981–2008
- DM1981–2008
- DMC1981–1994
- DML1981–1994
- DMM1981–2005
- F1981–1994
- FM1981–1994
- FR11981–1994
- LE1981–2008
- MC1981–2005
- MCE1981–1994
- MH1981–1994
- MR1981–2008
- MRE1981–1994
- MS1981–2005
- R1981–1994
- RB1981–2008
- RD1981–2005
- RL1981–1994
- RM1981–1994
- RS1981–1994
- RW1981–1994
- RWL1981–1994
- RWS1981–1994
- U1981–1994
- WL1981–1994
- WS1981–1994
- CHN1995–2009
- CT (Granite)1995–2009
- CV (Granite)1995–2009
- CX (Vision)1995–2005
- 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.
| Code | Holder | Vehicle type | Model years | Shared models |
|---|---|---|---|---|
| 1M2 | Mack Trucks Inc. | incomplete vehicles (chassis) | 1981–open | 53 of 53 |
| VG6 | Renault Group | incomplete vehicles (chassis) | 1981–2005 | 37 of 37 |
| VG8 | Renault Group | buses | 1986–2005 | 37 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
| Code | Vehicle type | Makes | Model years | Models |
|---|---|---|---|---|
| 1M3 | incomplete vehicles (chassis) | Mack | 1981–2016 | 46 |
Mack under other holders
Models named in each code's rules
Source: NHTSA vPIC, October 2026 release (database updated October 17, 2026). How the figures are counted: How the catalog is read.