DEI
DEI Fuel Rail and Injector Cover Jeep 1997 - 2004 4.0L Engine DEI Fuel Rail and Injecter Cover Jeep 1997 - 2004 4.0L Engine Fuel Rail Cover
SKU: dei10378
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...
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Overview
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
Features
- Our kit includes everything you need for a professional installation:
- Protects Injectors/Fuel Rail From Engine Heat
- 1 Precision-fit manifold heat shield
- 6 Individual fuel injector covers
- 12 Viton fuel injector O-rings
- 1 Fuel rail heat cover
Installation (catalog file)
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Fitment notes (catalog)
1997-2004 4.0L Jeep I6 engines
Summarized compatible vehicles also appear under Description → Fitment.
Detailed rows from our confirmed fitment index can be large (dozens to hundreds per part). Load them only when you need year/trim/engine-level links to Shop by Vehicle.