Gridiron Capital, an investment firm, completed the acquisition of a stake in Magneto & Diesel Holdings, a provider of aftermarket parts for diesel engines, from Warren Equity Partners. Financial terms were not disclosed. "We take pride in keeping our customers up and running and are excited to leverage Gridiron's experience in the auto aftermarket and value-added distribution space to expand our capabilities and continue to enhance the customer experience. We had many options in choosing a partner for our next phase of growth, but our shared strategic vision made selecting Gridiron an easy choice," Grant Garrett, Magneto & Diesel Holdings CEO.