See how amazingly clean this 700,000 mile 7.3″ electric run diesel engine is inside

The 7.3-liter Power Stroke is the measuring stick for all other Ford diesels, at least in terms of reliability. It’s so legendaryly tough that even Duramax and Cummins drivers tip their Hooey hats to them, usually complimenting them that they’re too underpowered to break anything. That may be true, but a look inside this estimated 700,000-mile engine should be proof enough for anyone doubting its hard-earned reputation.

It is important to note that there is some debate as to the true mileage of this engine. He was pulled from a truck whose odometer read 699,341 miles, and while the deviations on the CarFax showed the truck going from 68,372 miles to nearly 686,000 miles in just two months, the clearest signs indicate that this is a legitimately high package. You’ll see why in time, but let’s get this show on the road.

Eric, the guy behind the I Do Cars YouTube channel, makes a living by taking cars and trucks apart from the junkyard, so he’s been through the dismantling process plenty of times before. Starting with the accessories and components that are mounted to the engine, it gets stuck on the turbo for a minute but eventually comes loose. It appears to be a factory-style Garrett Charger that was replaced circa 2004 according to a date tag, giving even more credence to the idea that this truck racked up a lot of miles in a hurry.

Unsurprisingly, the water pump looks rough on the inside, and it was even cracked in the crash that totaled the truck. There are grooves in the casing where the wheel has hit it repeatedly for miles. It’s not exactly uncommon and, for what it’s worth, it worked until the wreckage.

Removing the valve cover revealed a clean head with paint marks still on the valve springs. The injectors proved to be a challenge – Eric broke two in the process – and although they appear to be clean, at least four of them were clearly stamped as remanufactured, so there’s not much point to assess their condition without also knowing the date. The rocker arms and lifters, however, are nearly immaculate, and the valve train as a whole appears to be in exceptional shape. There is some carbon buildup, but it would probably be there in an engine with less than half the miles.

Most of the notable finds came after finally lifting the 113-pound head off the block with a forklift. A look inside the cylinders showed neat hatching throughout, albeit with visible rings around the top of each. A piston is cracked, possibly from impact due to the location of the cylinder on the edge of the block, and just about every main bearing has been worn down to copper.

Severe camshaft wear indicates this is likely a 700,000 mile engine as advertised. The same can be said for the crankshaft, which has pitting on almost all journals. Keep in mind that the truck was still running with all of these issues, so while not sparkling clean, it kept going regardless.

If you have close to an hour to kill, you can watch the entire teardown video. Eric does a good job going through it all, and he’s honest that the engine history is questionable at best. It was built and raced in the 2000s when CarFax records weren’t always well kept, so that’s how it is. Still, I’d bet this powerhouse has put in more miles than anything I’ve driven.

Have a tip or question for the author? Contact them directly: [email protected]

Comments are closed.