Quick Hit: DEI Fuel Rail & Injector Cover for Jeep 4.0L Engine

Design Engineering Inc., or DEI as it is more commonly known, has engineered a solution for common heat soak and vapor lock issues associated with 1997-2004 Jeep models with inline-six engines. DEI may be more well-known for turbo blankets and exhaust wraps, but this latest proves that the brand is forever searching for fresh insulation solutions.

When the Cleveland, Ohio aftermarket insulation specialist announced that it would be releasing an easy-to-install heat protection kit for older versions of the inline-six Jeep, off-road enthusiasts let out a collective sigh of relief. Designed to reduce temps along the fuel rail and across injectors, this kit doubles down on fighting vapor lock while keeping fuel cooler.

DEI's kit helps keep a Jeep's 4.0-liter I6 running cool.

Mike Duca, Brand Manager for DEI, explains that they developed this kit to offer the customer everything they needed in order to complete the job. “We include not only the heat shields, but also new O-rings for the fuel injectors and detailed instructions,” Duca says. This decision prevents buyers from having to purchase additional fuel rail components, thus making this heat protection kit a straightforward DIY project.

Details and perks regarding DEI’s heat shield protection kit include:

•Reduced fuel rail and injector fuel temps
•Reduced chance of vapor lock
•Better protected injectors and fuel rail component surfaces

Each DEI kit includes a manifold heat shield, a fuel rail heat cover, fuel injector covers, OE replacement fuel injector O-rings, and instructions. Be sure to check out more about it on DEI’s website.

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About the author

Micah Wright

Raised on LEGOs by grandfathers who insisted on fixing everything themselves, Micah has been a petrolhead in training since age four. His favorite past times include craft beer, strong cigars, fast cars, and culinary creativity in all of its forms.
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