Jeep Fuel Rail and Injector Cover Kit from Design Engineering, Inc.

We have come up with a solution for a common heat soak & vapor lock problem in Jeep models with inline 6 engines (1997-2004). DEI's Easy to install heat protection kit reduces heat soak on the fuel rail and injectors, in turn reducing vapor lock and keeping fuel cool.

Fits 1997-2004 4.0L Jeep models with inline 6 motor
Reduces fuel rail & injector fuel temps
Reduces chance of vapor lock
Protects injectors & fuel rail from engine heat

Kit includes everything you need for a complete job:

1 - Manifold heat shield
1 - Fuel rail heat cover
6 - Fuel injector covers
12 - OE replacement fuel injector O-rings

[prr]

Just received mine. Going on a Jeep Wrangler Sport 2004.

[fariasadam]

Need one for the 96 and older as well.

[JeepTJWheelin]

I have an '05 TJ Rocky Mtn. Why does this say it's only for '97 - '04 Jeeps w/ the 4.0?? I have this kit and plan on installing it soon.

[johnpatterson]

I ordered some of your adhesive heat wrap last night for the dual fuel rails on my engine. I'm in South Texas and I think I've determined problem with loss of power. I measured the temperatures on the rails and regulators and it was in 150+ degrees range when I was experiencing loss of power. Before the rails get heat soak the temperatures ranged around 125 to 130 and engine had good power. I also ordered some of your heat resistant sheaving. My question is would I see any benefit of wrapping the rails and then slipping them into the sheathing for extra insulation? I can simply cut out the sheathing for the injectors. Thanks