1997-2004 Jeep 4.0L I6 - Fuel Rail & Injector Cover Kit

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; no special tools required.
Our kit includes everything you need for a professional installation:
- 1 Precision-fit manifold heat shield
- 1 Fuel rail heat cover
- 6 Individual fuel injector covers
- 12 Viton fuel injector O-rings
Reviews
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Jeep 4.0l heat shield kit
This product fits perfectly o pre '97 stock 4.0l engines as well. I have an early '96 (pre '97-'01 intake).
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HEAT SOAK KIT FOR 2001 JEEP CHEROKEE 4.0
THIS KIT, "DID NOT WORK", TO SOLVE MY "HEAT SOAK" PROBLEM.
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Fuel Rail & Injector Cover Kit
The OEM heat cover fell apart from years of use. This kit is better than OEM!
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Jeep TJ Fuel Rail Cover
Solved my heat sink issues.



