The diesel experts

Alliant Power is a brand and network of Diesel Forward. It is the nation’s leading distributor of aftermarket diesel engine fuel systems and engine components for light, medium and heavy-duty vehicles and equipment. Partnering with industry leading manufacturers, we distribute new and remanufactured parts around the world.

Need quality parts? We’ve got you covered. Our strong relationships with industry leading manufacturers made us the largest aftermarket distributor of the top diesel brands in the U.S.

Supported by company-owned warehouses in four U.S. time zones, we ensure our international network of distributors, dealers and national accounts get the timely, accurate deliveries they need. Our continually expanding product list of more than 8,200 SKUs make it easy to get all the right parts from one source.

From on-highway light, medium and heavy-duty vehicles and bus fleets to off-highway industrial and agricultural equipment, we serve hard-working diesel engines of all sizes. Whether you’re requesting OEM or OEM equivalent, new or remanufactured parts, depend on us—the trusted source for aftermarket diesel product distribution.

  • Fuel systems

  • Engine components

  • Electronics

  • Turbochargers

  • Filtration

  • Repair kits

  • Exhaust gas aftertreatment

  • Fuel treatment

Beyond distribution, we also remanufacture diesel fuel systems and electronics, provide factory-authorized warranty testing — and operate a state-of-the-art product development, service and training center that showcases our drive for continuous improvement in everything we do.

We are more than the sum of our parts. Save sourcing time by getting all the parts you need from our expansive product range and distribution network. With more than 550 authorized service dealers coast to coast; you will get the parts you need and your vehicle repaired as quickly as possible. We also provide technical expertise and reliable customer support.

Our technical and customer support are highly trained in the latest diesel technologies; they bring years of industry experience to every customer interaction. From order placement to installation and maintenance, we fully support the products we sell. Our unrivaled technical expertise helps you minimize downtime and get back to work.