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This Jeep Wrangler Has Six Wheels and a Steam Engine

This Jeep also has two fully-functional train whistles.

We’ve seen some crazy things in terms of engine swaps. We’ve seen a turbocharged Nissan Silvia engine in a Mustang II, a Viper V-10 in a BMW M3, a blasphemous Mustang with a Corvette powertrain, and even a Hellcat-powered Prius. Just when we thought we’ve seen it all, somebody went and put a steam engine in a 2008 Jeep Wrangler Unlimited. Oh, and also added two more wheels.

Facebook / Hauk Designs

It’s called the Loco Hauk built by Hauk Designs in Chambersburg, Pennsylvania. The “loco” part serves two meanings as it both has a steam engine like a locomotive and it is absolutely crazy. According to Four Wheeler Network, the engine is a 100ci V-4 single-acting, trunk-piston, poppet-valve uniflow steam engine and the transmission is a NSG370 6-speed manual. Three water pumps feed water to the boiler in the steam engine from a 55-gallon water tank at a pressure of up to 1,000 pounds per square inch. This is achieved thanks to six batteries and six constant duty solenoids keeping everything running. A full 55-gallon tank of water can move the Loco Hauk 1 to 1.5 miles at 30 to 35 mph.

Four Wheeler Network

Loco Hauk has BDS four-link suspension with four-inch BDS coil springs and Fox shocks. This beast sits on six Grid Off-Road GD1 wheels with 41.5×13.50R17 Pit Bull Rocker tires. Being a 6×6 vehicle to make it more like a locomotive, this Jeep has three differentials. The front and rear diffs are TeraFlex D60 units and the middle axle is a Ford nine-inch.

Four Wheeler Network

This Jeep has a wild west vibe inside and out. Old school gold accents on the black paint hit home the train aesthetic and that continues in the interior. It has a 19th-century locomotive steam gauge with vintage water well pumps for the steam control and shifters. Some nice modern conveniences include diamond stitch leather seats from Star Fabrication and a Kicker stereo.

A steam engine in a JK Wrangler isn’t most practical or most powerful engine swap we’ve ever seen, but it’s certainly one of the most interesting.