Conversion companies and “upfitters” are entities that can convert an appropriate vehicle to run on CNG, propane autogas, or electricity. Both dedicated and bi-fuel conversions are available, although it varies by company as what kind of conversion they do.
Pictured: A Ford F-250 Pickup equipped with XL’s Plug-in Hybrid Electric Upfit system on display at the 2019 Bi-State EV Connector.

It is more common to see conversions on light- to medium-duty sized vehicles. While CNG and propane conversions have been going on for years, more companies are joining into the conversion space for electric vehicles – taking an older diesel vehicle and converting it to run solely on electricity. Learn more about some CNG and electric conversion and upfitter companies below.

 

Upfitter or Conversion co.
CNG?
EV?
Altech-Eco Y  
Complete Coach Works (CCW) Y Y
Crazy Diamond Performance Y  
Eco Vehicle Systems Y Y
Greenkraft, Inc. Y  
ICOM North America Y  
LandiRenzo USA Y  
Lightning Systems   Y
Mitsubishi Fuso   Y
Motiv Power Systems   Y
Orange EV – Terminal Trucks   Y
ROUSH CleanTech   Y
SEA Electric   Y
Viatec – smart PTO   Y
Westport WING Y  
XL Fleet   Y