In 1994, the diesel world was changed forever. The 7.3L Powerstroke engine, made by International Navistar, was introduced to Ford Heavy Duty trucks. The 7.3L Powerstroke Diesel engine provided significantly better performance specifications than its 6.9L IDI and 7.3L predecessors. It also offered significantly better reliability than the engine that followed, the 6.0L Powerstroke. The 7.3L Powerstroke was a huge success for Ford, but what made these trucks so special? Here are the key 7.3L Powerstroke engine specifications and design elements that make these trucks so valuable, even today. We’ll also cover model year differences, 7.3 history, and tow ratings. Let’s dive in!

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