DEI · New
DEI 97-04 Jeep 4.0L Fuel Rail & Injector Cover
MPN 10378 · Store SKU dei10378
Supplier stock checked 11/7/2026, 7:52:37 AM UTC. Adding a part does not reserve it.
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Product details
Say goodbye to heat soak and vapor lock in your 4.0L Jeep TJ Wrangler or XJ Cherokee with DEI’s Fuel Rail & Injector Cover Kit. Designed specifically for the legendary 4.0L engine, this kit helps restore smooth, consistent fuel delivery by shielding critical components, especially the vulnerable #3 injector, from damaging underhood heat. At the core is an ultra-resilient 8mm thick thermal barrier, compressed between dual heat-reflective aluminum layers to block and deflect extreme radiant heat. Built for real-world Jeep conditions, the rugged construction stands up to high temps, trail abuse, and daily driving alike. Each fuel rail and injector cover is crafted from premium high-temperature glass fiber with a reflective aluminum outer skin, keeping fuel system components cooler and operating at peak efficiency. Installation is quick and secure with integrated hook-and-loop closures 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 A kit consisting of six Heat Shroud covers, a custom cut fuel rail cover, a manifold shield, and twelve Viton O-rings. Fuel Rail and Injector Cover Kit Jeep 1997-2004 no special tools required. Fuel Rail And Cover Kit; Fuel Rail And Cover Kit
Manufacturer fitment & guides
- 1997-2004 4.0L Jeep I6 engines
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y
