Why is HHP the Preferred Source of Diesel Engine Parts?

The Highway & Heavy Parts Difference

At Highway & Heavy Parts, we don’t just sell diesel engine parts—we power the people who keep America moving. Founded in 2010 in Midland, Michigan, we set out to do things differently: honest pricing, unmatched technical support, fast shipping, and parts that outperform expectations. Over a decade later, that mission still fuels us.

Our team of ASE-certified diesel techs and customer support pros is here to solve problems—not just take orders. Whether you’re wrenching in a 15-bay repair shop, keeping a fleet rolling across state lines, or chasing miles as a one-man operation, we know what’s at stake. Downtime is money. Trust is everything. And we’ve got your back, from diagnosis through delivery.

Who We Serve

  • Diesel Repair Shops: From in-frames to diagnostics help, we support shops with parts that ship fast and techs who speak your language.
  • Fleet Managers: We help you lower cost-per-mile, extend uptime, and simplify vendor relationships.
  • Owner-Operators: When it’s your name on the truck, every mile counts. We deliver premium parts that perform like you do—without dealership prices or BS delays.
Caterpillar Diesel Engine
Caterpillar
Engine Model Coverage: 3100, 3200, 3300, 3400, 3500, C7, C9, C12, C15 plus D and G Natural Gas Spark Ignited Series Engines
Part Offerings
Rebuild Kit, Cylinder Head, Fuel Injector, Camshaft, Crankshaft, Engine Block, Turbocharger, Oil Pump, Gasket Set, Water Pump, Oil Cooler, After Cooler & Sensor.
Cummins Diesel Engine
Cummins
Engine Model Coverage: B, C, L, M, NT, N14, ISX, KT, VT, QSB, QSC, QSL, QSX, plus Natural Gas Spark Ignited Series
Part Offerings
Rebuild Kit, Cylinder Head, Fuel Injector, Camshaft, Crankshaft, Engine Block, Turbocharger, Oil Pump, Gasket Set, Water Pump, Oil Cooler, After Cooler & Sensor.
Detroit Diesel Engine
Detroit Diesel
Engine Model Coverage: Series 60, Series 50, Series 71, Series 53, DD15, DD13, DD16, 6V92
Part Offerings
Rebuild Kit, Cylinder Head, Fuel Injector, Camshaft, Crankshaft, Engine Block, Turbocharger, Oil Pump, Gasket Set, Water Pump, Oil Cooler, After Cooler & Sensor.
International/Navistar Diesel Engine
Intl/Navistar
Engine Model Coverage: DT360, DT466, DT466E, DT530, DT570 Series Engines
Part Offerings
Rebuild Kit, Cylinder Head, Fuel Injector, Camshaft, Crankshaft, Engine Block, Turbocharger, Gasket Set, Water Pump, Oil Cooler, Oil Pump & Sensor.
Why Choose HHP?
  • 28+ diesel part categories across all major OEMs
  • Nationwide distribution & free shipping options
  • Technical sales reps with real wrench time
  • Exclusive performance lines like the Black Series
  • Reputation built on trust, not just transactions
From diagnosis through delivery, we are Highway & Heavy Parts.

Need help with your build or breakdown? Call 844.215.3406 or text 844.390.1339 today.