We have one of these kits to install on Project LJPFreek to help ensure that the injectors and fuel rail are kept as cool as possible. Look for a review in our Fall issue.
Design Engineering, Inc. now offers a thermal Fuel Rail and Injector Cover Kit designed to custom fit 1997-2004 Jeeps® equipped with the 4.0L inline-six engine. Jeep Wranglers and Cherokees often are at risk of heat related fuel system problems that can cause rough idle or slow starting. DEI’s fuel rail and injector cover kit reduces rail and injector fuel temperatures; reducing instances of vapor lock. With thermal protection from radiant or direct engine heat, injectors will perform more efficiently with a more consistent throttle response.
The kit includes: 1 manifold heat shield, 1 fuel rail heat cover, 6 fuel injector covers and 12 fuel injector OE replacement O-rings. Both the heat shield and the fuel injector covers are made of high-temperature rated glass fiber material bonded to a heat reflective aluminized material. The fuel injector heat covers can be used for either stock or aftermarket fuel injectors. Easy to install, the injector covers feature a split design and sewn-in hook and loop fastening edge that takes only moments to install.