Saginaw Powertrain, Inc., (SPI) is a minority owned supplier of automotive drive train components owned by Reliant Equity Investors, a management centric private equity firm located in Chicago, IL.

Our current manufacturing capabilities include the following:

  • De-flashing/De-burring of large & small castings
  • Powder Coating of engine blocks & knuckles
  • Target Milling of engine blocks