10 Truck Engines That REFUSE to Die (1.2 Million Miles & Counting!)

Most truck engines die before they hit 200,000 miles but a rare few refuse to quit. A 2000 Dodge Ram clocked 2.6 million miles on the original Cummins 5.9L 12-valve. A Toyota Tundra crossed the 1 million mile mark and ended up in Toyota's own museum. A Chevy Silverado hit 1.2 million miles in just seven years on the legendary Duramax LBZ. The Ford 7.3L Power Stroke is still sold as a crate engine two decades after retirement. The Toyota 22R outlived everything Detroit threw at it, and the Ford 300 inline 6 ran for 40 years in a single F-350 without ever giving up. These are the engines built before reliability became a marketing word. No turbo gimmicks. No hybrid nonsense. No emissions tech designed to fail at 80,000 miles. Just cast iron, forged steel, and engineering so stubborn it refused to die. If you're shopping for a used truck, planning an engine swap or just want to know which truck engines actually earned their legendary reputation — these are the names every buyer needs to know.

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