The standard engine is the ISB 6.7L. It features the latest Cummins technology, including full-authority electronic controls, a high-pressure common-rail fuel-injection system, 24-valve design, the patented VGT turbocharger, a particulate filter and more. The 6.7L comes in your choice of 8 horsepower and torque ratings.* For 2015, the ISB 6.7L onboard diagnostics includes OBD-2 with greater memory capacity.
If your business requires a more budget conscious engine option, we offer PSI / GM gasoline engines in all our trucks. The class 6 & 7 models can come with the 8.8L with 322hp or 475hp ratings with 600lb-ft of torque, and the class 4 & 5 truck models can come with the 6.0L with 345hp / 373lb-ft of torque.
If your business vocation requires an alternative fuel solution our trucks can be up fitted factory direct with either the PSI 8.8L or 6.0L in CNG or LPG versions.
All our engine offerings are mated to Allison six speed automatic rugged duty series transmissions. Allison represents the toughest most reliable transmissions in North America and all our transmissions come standard with a (PTO) power take off provision. Allison® automatics are equipped with the Generation V control module for smooth operation and feature load-based shift scheduling (LBSS).
High-power density through high-capacity gearing and bearing system for durability and reliability with higher horsepower/torque engines. Optimized gear size with wide face width.
Patented integral arm knuckle design for best-in-class turn angle radius and light weight characteristics. Patented dual drawkey design for improved durability and alignment. Patented tie rod end sealing system for improved durability and reduced maintenance. Patented power rib design reduces weight while maintaining superior durability and deflection characteristics with high torque brakes.
Precision balanced for reduced noise, vibration, and harshness (NVH). Permanently lubricated and sealed spline for reduced maintenance costs. Thermoplastic seal guard with retention feature to exclude contaminants for improved seal performance.