On Highway

Harper Power Products provides all of your on-highway and vocational application powering needs with the complete line of Detroit Diesel and Mercedes-Benz engines designed for light, medium and heavy duty applications.

From the durable, lightweight MBE 900 engine to the high performance, electronically-controlled Series 60 engine, Harper Power Products has the engine with the precise combination of power and performance features you need.

Diesel Engines for Urban Transit, Motorcoach, Motorhomes, Shuttle and School Buses.

Diesel Engines for Medium - Heavy Duty Trucks

For exceptional fuel savings, contact our sales department to spec one of these engines for your next purchase.