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Design Engineering

DESIGN ENGINEERING Fuel Rail & Injector Cover Kit for Jeep (1997-2004, 4.0L Engine) - Our Accessories Reduce Vapor Lock & Keep Fuel Injectors & Rails Cooler

    • Based on 1,094 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jan 10
Order within 3 hours and 6 minutes
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Features

  • HEAT SOAK & VAPOR LOCK SOLUTION: When fuel vaporizes in the fuel line air pockets can form and cause your engine to shut down. Our kits block radiant heat from being absorbed by using a strong highly reflective heat shield material.
  • TOP QUALITY FUEL RAIL & INJECTOR COVERS: Our high-quality fuel rail and injector covers are built for the prevention of heat absorption. These highly reflective covers are made from high temperature glass fiber backed barrier with an aluminum skin.
  • HIGH PERFORMANCE MANIFOLD COVER: This highly reflective heat shield is excellent at blocking extra heat from soaking into the fuel rail. The cover is made from a dual sided aluminum barrier with a high temp insulation sandwiched between to provide the ultimate automotive heat barrier.
  • COMPLETE SET: This system comes with all the right heat shield pieces needed to protect your Jeep from heat transfer. Each box contains 1 - Manifold heat shield, 1 - Fuel rail heat cover, 6 - Fuel injector covers, and 12 - OE replacement fuel injector O-rings.
  • EASY INSTALLATION: The unit contains all the parts needed for a successful and professional installation in your own shop or garage with our unique hook and loop design. Protect your ride by giving it the thermal heat saving treatment rebuild it deserves today.

Description

✔️ PRODUCT DESCRIPTION: Here at Design Engineering, we have come up with a solution for a common heat soak & vapor lock problem in Jeep models with inline 6 engines (1997-2004). Our amazingly easy to install heat protection barrier kit reduces heat soak on both the fuel rail and injectors. This heat protection in turn aids in reducing vapor lock and helps in keeping fuel cool. The manifold cover is made from a dual sided aluminum barrier with a high temp insulation sandwiched between Prevent engine and fuel breakdown with our professional heat shield installation kit. ✔️ WHY & WHERE TO USE: Our new Fuel Rail & Injector Cover Kit is equipment built to fit Jeep Wrangler or Cherokee models 1997-2004 that have a 4.0 Liter inline 6 motor. Our kit helps this engine by reducing fuel rail & injector fuel temps which in turn reduces the chances of vapor lock. Our design protects both the injectors & fuel rail from radiant engine heat. This high performance, quality thermal kit includes everything you need for a clean and complete installation. Boost your vehicle's performance today. ✔️ CONTENTS: Each pack contains installation instructions along with the following items listed below for a cleaner and easier install: 1 - Manifold heat shield 1 - Fuel rail heat cover 6 - Fuel injector covers 12 - OE replacement fuel injector O-rings ✔️ TOOLS NEEDED: For proper installation you will need the following tools on hand: a 10mm socket w/ ratchet & extension, a flathead, screwdriver, and a fuel rail disconnect tool, pick (for removing O-rings). ✔️ SAFETY: Please make sure that your battery is disconnected, and that the engine is cool before starting the install process. After installation check for fuel leaks. Please refer to your vehicle's service manual for the exact fuel injector & fuel supply line removal instructions and guidelines. ✔️ NOTE OF CAUTION: Fuel and vapors are flammable. DO NOT have any open flame near vehicle during installation.

Brand: Design Engineering


Material: Aluminum


Exterior Finish: Design Engineering Fuel Rail & Injector Cover Kit


Item dimensions L x W x H: 6.25 x 1.88 x 15.38 inches


Vehicle Service Type: Car


Brand: ‎Design Engineering


Material: ‎Aluminum


Exterior Finish: ‎Design Engineering Fuel Rail & Injector Cover Kit


Item dimensions L x W x H: ‎6.25 x 1.88 x 15.38 inches


Vehicle Service Type: ‎Car


Style: ‎Modern


Item Weight: ‎0.6 Pounds


Manufacturer: ‎Design Engineering, Inc.


UPC: ‎607078103789


Global Trade Identification Number: ‎89


Model: ‎010378


Item Weight: ‎9.6 ounces


Product Dimensions: ‎6.25 x 1.88 x 15.38 inches


Country of Origin: ‎USA


Item model number: ‎10378


Manufacturer Part Number: ‎10378


OEM Part Number: ‎010378


Special Features: ‎Reduces fuel rail & injector fuel temps


Date First Available: September 21, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • (UPDATED) I'll admit I was wrong
Well guys it finally happened. We finally got our first hot enough day in Memphis, Tennessee to require A/C and test out my new fuel rail/injector insulation. The install went okay, I put it on a while ago while it was still cold outside. The injector o-rings it came with are a perfect fit. The injector wraps are a so-so fit. The manifold shield I did not use since my factory shield (they're identical) is still intact. The fuel rail fits like a glove once you figure out where to cut the damn thing to make it POSSIBLE to wrap around the rail. Cut a hole for your schrader valve if equipped. But when it's all said and done? It looks great and fits tight. So it's gotta work, right? UPDATE: July 7, 2019, Everyone I have to admit I was wrong when I first wrote my review. I removed the unnecessary bickering and have to apologize to DEI, you guys did a good job after all. I don't know why I previously had symptoms of heat soaking on a ~70* day with this first installed but now that we are well into the 90's I haven't had ANY issues whatsoever. A/C on, hot humid days stuck in interstate traffic, stop and go, very little airflow through the radiator, yet when I get home and shut the Jeep off, change clothes, and head back out for the gym; no vapor lock. I don't have any active fault codes and the only thing I've done to the engine since this install was I also replaced a faulty Throttle Position Sensor. Perhaps the failing TPS gave me SIMILAR symptoms to vapor locking that were affected by excessive heat while still driving and I just thought this insulation kit was to blame. I don't know, but I do know that I was wrong. I'm running harder and hotter than ever in Memphis traffic and getting absolutely NO vapor lock on any cylinder. So this kit is doing great and I wouldn't hesitate to go wheeling in a desert somewhere. I'll continue to update this if anything changes but for now, I highly recommend this kit! I had to come back here to eat my words so I can keep my feedback as accurate as possible. Plus, it's terribly simple to install. I'll add pictures soon. Thanks again! ... show more
Reviewed in the United States on April 7, 2019 by Cub
    • Worked wonderfully
Review Image by todd b milne todd b milne
Review Image by todd b milne todd b milne
Review Image by todd b milne todd b milne
Great direction to help install this product, very helpful!
Reviewed in the United States on April 13, 2024 by todd b milne todd b milne
    • DEI quality
Review Image by Liberated Seaman Liberated Seaman
Review Image by Liberated Seaman Liberated Seaman
I have ran 2 kits. The cheaper kit you get on Amazon or eBay and this kit. The cheaper kit falls apart over 2 years. Heat shield if some sort of cheap material. The DEI is new and I am giving it a go. Right out of the box I can tell it's got better material and the main heat shield has a foam barrier and not some rubberized inner like the cheaper kits. The reflection kit is also nicer. As with any Jeep project, save the money for the nice kit. This kit comes with injector o-rings. I didn't use them as I had a set already available, but as an FYI. ... show more
Reviewed in the United States on June 4, 2024 by Liberated Seaman Liberated Seaman
    • Seems to have made a difference
Installed this on my Cherokee XJ 2000 4.0 motor. A little tricky trimming it into place but once done it does seem to make a big difference. Not getting the rough start / idle P300 code anymore. Swapped this along with replacing the o rings on the injectors and adding a 160 degree thermostat. Made a BIG difference in heat on that engine that likes to run hot anyway. ... show more
Reviewed in the United States on May 9, 2024 by Mikey B
    • Easy to install
Review Image by Francisco O. Francisco O.
Review Image by Francisco O. Francisco O.
Review Image by Francisco O. Francisco O.
Review Image by Francisco O. Francisco O.
Easy enough to install. The only modification is that needed to cut the rail wrap slightly to make it fit around the pressure regulator diaphragm. In addition to the heat wrap had to replace all my fuel injector connectors due they broke off when removing them because they where dry from the heat. I will update the review once drive the vehicle for a longer period of time. ... show more
Reviewed in the United States on June 21, 2022 by Francisco O. Francisco O.
    • Nice fit - looks great
Used on my 2004 Jeep Wrangler
Reviewed in the United States on March 28, 2024 by Maria P. Melo
    • A little pricey, but quality product
Review Image by Brad Brad
Review Image by Brad Brad
Review Image by Brad Brad
I use my Jeep XJ to tow a small boat, so I am all too familiar with heat soak issues. I would leave it running on the boat ramp so I didn't have to shudder and shake, barely making it up the ramp. So far this kit solved the problem. I also added hood vents to keep the engine bay Temps down, but I'm sure this kit is enough to stop the heat soak problems. All the fuel rail brackets and holes lined up perfectly, except for the pressure regulator, but one cut with some scissors fixed that. My factory heat shield was totally destroyed, see photo, so the new one looks great. Top of the engine looks much better. I found it best to install the injector wraps after the fuel rail was re-installed. It was too difficult to line up the injectors with holes and connect the electrical connectors with the wraps installed. Overall a nice product. I will definitely save some fuel/wear and tear by not leaving the jeep running during stops. ... show more
Reviewed in the United States on March 28, 2022 by Brad Brad
    • Fits my 2005 tj just fine
Just had to cut a tiny slit in it to fit my 2005. not a big deal at all and looks great.
Reviewed in the United States on June 6, 2024 by david mitchell

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