This has an Opel engine. I’ve never heard of that engine in a jeep. Fits nicely. No title.

https://fortcollins.craigslist.org/cto/d/tyro-willys-jeep/7083032597.html

“Cool little Jeep here. No title meaning it’s probably a strictly off-road vehicle. Has an opel 4 cylinder engine with the original gearbox and t case. Ran fine and worked good 2 years ago. Should still be good will definitely need a battery and a carb clean. New brakes and brake lines all around comes with 2 sets of wheels and tires (ALL TIRES ARE VERY BAD. ) it will definitely need to be trailered. I had a blowout towing it behind my 4runner so it will need to be trailered not flat towed now. Unique little rig.”