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We are Apex Diesel. We are Performance.

Your #1 source for Cummins and Powerstroke performance parts and service. Specializing in cutting-edge engine builds, custom fabrication, and machining.

High horsepower full competition builds for 5.9L, 6.4L, 6.7L, and custom size Cummins engines, as well as 6.0L,6.4L, and 6.7L Powerstroke Engines.  Sled pulling or Drag Racing, Single or Twin turbo setups. Our competition engines have made upwards of 2600hp and 6400rpm.  Our engines are built and assembled start to finish 100% in house using only the best components.  If we haven’t ran it, we don’t sell it!