Chassis
SEVNA cab systems are engineered for Harbinger medium-duty electric chassis platforms. Three wheelbase options. EV and range-extended powertrains.
Built on Harbinger medium-duty platforms
Harbinger Motors manufactures purpose-built medium-duty electric vehicle chassis platforms. SEVNA composite cab systems mount directly to Harbinger chassis, creating a complete cab-chassis foundation ready for commercial body integration.
This partnership combines Harbinger's EV platform engineering with SEVNA's lightweight composite cab construction — purpose-built for the medium-duty commercial segment.
Four lengths for the full range of commercial applications
Wheelbase
158-Inch Wheelbase
The shortest wheelbase option for applications that require tight turning radius and urban maneuverability. Well-suited for last-mile delivery, compact box trucks, and city service vehicles.
Wheelbase
178-Inch Wheelbase
A balanced mid-range wheelbase that accommodates the widest variety of commercial body types. The most versatile option for regional delivery, walk-in vans, shuttle, and standard box truck configurations.
Wheelbase
208-Inch Wheelbase
Long wheelbase option for larger commercial bodies, refrigerated delivery, shuttle/bus applications, and extended regional freight configurations.
Wheelbase
238-Inch Wheelbase
Extended platform for maximum body length applications, large-format delivery, shuttle, RV/specialty, and high-capacity vocational configurations.
Electric and range-extended platforms
Electric Chassis
Harbinger's primary medium-duty EV platform. Fully electric drivetrain with battery capacity sized for commercial duty cycles including urban delivery, regional routes, and fixed-route shuttle operations.
Range-Extended Chassis
A plug-in hybrid option where available, combining electric drivetrain with a range extender for applications that require longer range or operate in regions with limited charging infrastructure.
Pictured
Harbinger range-extender chassis platform — the hybrid configuration paired with SEVNA cab systems for extended duty cycles.
Chassis + Cab + Body
The complete medium-duty commercial EV is assembled in three layers: the Harbinger electric chassis platform, the SEVNA composite cab system, and the commercial body provided by the upfitter or body builder.
- 1Harbinger Chassis
Electric drivetrain, battery, frame, suspension
- 2SEVNA Cab System
Composite cab enclosure, driver environment, mounting interface
- 3Commercial Body
Box, reefer, walk-in, shuttle, vocational, or specialty body
Designed for upfitters and body builders
SEVNA cab systems are engineered with body builder integration in mind. The rear wall configuration, cab-to-frame mounting points, and electrical interface are documented and standardized for repeatable commercial body installation.
Multiple cab-to-chassis interface configurations are offered to support different box mounting heights — so upfitters can match the cab interface to a range of box, walk-in, or specialty body geometries. The configurations shown are a sample; additional mounting options beyond those pictured are available on request.
Pictured
A sample of cab-to-chassis interface configurations showing different box mounting heights. Additional configurations are available beyond those shown.