The completed engine installation fits the TJ engine bay as if designed for it. It’s a little bigger package than the stock gasoline four-cylinder but fits well. Ever-so-slight firewall massaging was needed on our setup. We sourced some battery wires from Painless Performance, and plenty of intake and turbo hoses and elbows from Summit Racing Equipment. We went with a mechanical fan but are not sure if that will be an offered solution or if electric fans will be standard. The air filter is tucked under the hood, and the engine purrs with a little diesel rattle as expected.