MT Power
The MT chassis is your proven, productive work tool. Reliable Cummins® diesel and General Motors® gas engines provide excellent fuel economy, and Custom Step Vans is proud to offer factory-installed propane and CNG engines for reduced emissions and lower maintenance and fuel costs. Whatever powertrain you choose, the MT delivers the power and efficiency you need for demanding routes.
Diesel

CSV offers a variety of choices from Cummins®, the top name in diesel-engine design. With horsepower ratings up to 300, Cummins engines provide durability and lower maintenance costs through an excellent balance of low-end torque and high-end acceleration. These electronic engines will deliver the performance you expect when you need it most, plus provide a lifetime of no-hassle maintenance.
- Exceptional fuel economy
- Extended oil-change intervals
- Up to 500,000-mile engine life
CUMMINS® ISB 6.7L EGR | 200HP | 520 LB.-FT. TORQUE |
CUMMINS ISB 6.7L EGR | 220HP | 520 LB.-FT. TORQUE |
CUMMINS ISB 6.7L EGR | 240HP | 560 LB.-FT. TORQUE |
CUMMINS ISB 6.7L EGR | 260HP | 660 LB.-FT. TORQUE |
CUMMINS ISB 6.7L EGR* | 300HP | 660 LB.-FT. TORQUE |
*For emergency applications only
To review specs and information on particular Cummins engines, visit their website.
Gas

As part of our pledge to help you consistently deliver more profit, our gasoline-powered chassis is available on either the MT-45 or MT-55 models. It’s a powerful performer, ready to take on large cargo and heavy-duty loads.
GENERAL MOTORS® V8 6.0L | 308HP | 367 LB.-FT. TORQUE |
Compressed Natural Gas (CNG)

Backed by more than a decade of compressed natural gas expertise, Custom Step Vans has introduced the only dedicated, OEM-supplied CNG engine for the walk-in van market. The CNG MT is a dedicated CNG engine, not a retrofit, powered by a Baytech fuel system that is CARB- and EPA-approved, as well as fully warranted to the customer.
GENERAL MOTORS® V8 6.0L | 308HP | 367 LB.-FT. TORQUE |
Propane

The MT Propane sets a high standard for LPG walk-in van performance. A CleanFUEL USA® dedicated liquid propane injection fuel system combined with a 48-gallon tank provides up to 200 miles between stops.
GENERAL MOTORS® / POWERTRAIN INTEGRATION V8 6.0L | 308HP | 367 LB.-FT. TORQUE |
For more information on the benefits of LPG, click here.
Fuel Tank

The MT chassis comes with a 30- to 90-gallon aluminum or aluminized steel fuel tank, mounted between the frame rails, left-hand or right-hand fuel fill.