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

4.6 4.6 out of 5 stars 1,066 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Exhaust Heat Shields by Design Engineering

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Brand Design Engineering
Material Aluminum
Exterior Finish Design Engineering Fuel Rail & Injector Cover Kit
Item Dimensions LxWxH 6.25 x 1.88 x 15.38 inches
Vehicle Service Type Car

About this item

  • ✔️ 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.
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Fuel Rail and Injector Cover Kit for Jeep

Fuel Rail and Injector Cover Kit for Jeep

1997-2004, 4.0L Engine

The DEI Fuel Rail and Injector Cover Kit is designed for 1997-2004 Jeep models with inline 6 motor and prevents heat related problems in the fuel delivery system. It reduces fuel rail and injector heat soak, reduces the chance of vapor lock, and keeps fuel cool. The easy to install kit includes one manifold heat shield, one fuel rail heat cover, six fuel injector covers, and 12 fuel injector O-rings. The heat shield is a glass fiber-backed heat barrier with thick aluminum skin. It reduces radiant heat from the manifold. The fuel rail and injector covers are a high temp glass fiber fabric with aluminized outer skin, designed to reflect engine heat away from fuel rail and injectors. The hook and loop design makes for easy installation.

  • Designed for 1997-2004 Jeep models with inline 6 motor
  • Reduces fuel rail and injector heat soak, reduces the chance of vapor lock, and keeps fuel cool
  • The heat shield is a glass fiber-backed heat barrier with thick aluminum skin
HEat Control
Titanium Exhaust Heat Wrap Fire Sleeve and Tape Kit Cool-Tube Extreme Heat Reflective Sleeve Reflect-A-GOLD Heat Sheath - Aluminized Sleeving
Titanium Exhaust Heat Wrap Fire Sleeve and Tape Kit Cool-Tube Extreme Heat Reflective Sleeve Reflect-A-GOLD Heat Sheath - Aluminized Sleeving
Customer Reviews
4.6 out of 5 stars
1,270
4.7 out of 5 stars
352
4.7 out of 5 stars
46
4.7 out of 5 stars
1,610
4.7 out of 5 stars
1,030
Made from pulverized lava rock and engineered for improved thermal performance and reliability Use for bundling and protecting hoses, electrical wiring, etc. from high temperatures Ultra-lightweight heat reflective solution for wires, cables, hoses, fuel lines, etc. Heat reflective solution for firewalls, bulkheads, engine covers, floors, seat bottoms & more Heat Sheath provides ultimate protection from extreme heat as well as chemical and oil spills, dirt, grease and road grime
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Fire Sleeve and Tape Kit Titanium Pipe Shield Versa Shield Titanium Turbo Shield Protect-A-Boots and Wires Kit Hi-Temp Shrink Tubing
Customer Reviews
4.4 out of 5 stars
417
4.6 out of 5 stars
346
4.6 out of 5 stars
473
4.7 out of 5 stars
119
4.4 out of 5 stars
7
4.0 out of 5 stars
23
Use to cover firewalls, marine engine compartments, RVs, or in the tub of a racecar where typical mechanical fasteners cannot be used Easy to install with unique rivet-based pipe standoff brackets and pipe clamps Protect your starters from potential failure caused by under-hood heat soak conditions Custom fit for easy installation, the incoporated anchoring hooks provide a secure fit Optimize your under-hood protection against radiant heat while adding a finished look to your spark plug wires Provides excellent electrical insulation, protection, as well as providing strain relief

Product 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.

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Warranty & Support

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


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What's in the box

  • Fuel Rail and Injector Cover Kit for Jeep (1997 - 2004, 4.0L Engine)
  • Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    1,066 global ratings

    Customers say

    Customers like the ease of installation, performance, and fit of the engine component cap. For example, they mention the instructions are more than sufficient, the exhaust manifold heat shield was easy to install, and it works well. Some are happy with appearance, and vapor lock. That said, opinions are mixed on quality, heat soak, and value.

    AI-generated from the text of customer reviews

    66 customers mention56 positive10 negative

    Customers find the installation of the engine component cap to be super easy. They mention the instructions are more than sufficient, and the Velcro is easy to use. Some mention that the exhaust manifold heat shield is easy as well. Overall, most are satisfied with the ease of installation and recommend the product to others.

    "...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...." Read more

    "Great product excellent directions. Solve the problem of the car. Not want to start Once it got hot" Read more

    "...Install was fairly simple and only required a ratchet set and one special tool..." Read more

    "...which cost me some time. I really like this kit and it saved me a lot of time. I couldn’t find another pre cut piece of the shielding anywhere" Read more

    44 customers mention38 positive6 negative

    Customers like the performance of the engine component cap. For example, they mention it works well, is easy to install, and has great quality. Some say that the injector wraps work well and completely correct the issue with heat soak in high mileage Cherokees. Overall, most are happy with the product and recommend it.

    "...So this kit is doing great and I wouldn't hesitate to go wheeling in a desert somewhere...." Read more

    "This product is great. It solved my heat soak problem...." Read more

    "...is definitely a well put together product, it fits REALLY well, almost too well, and it works...." Read more

    "...I had to cut two holes in it for two injectors. The injector wraps worked well.Heat soak is a bad problem in high mileage Cherokees...." Read more

    41 customers mention32 positive9 negative

    Customers like the fit of the engine component cap. They mention that it looks great, fits like a glove, and fits really well together.

    "...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...." Read more

    "...The fit on the parts is really good, they definitely got their measurements right. The wrap on the fuel rail itself, though, is almost too tight...." Read more

    "Nice tight fit and finish...." Read more

    "...I got it for my 2000 Jeep Cherokee. The large shield did not fit perfectly, no matter how I oriented it...." Read more

    21 customers mention21 positive0 negative

    Customers are satisfied with the appearance of the engine component cap. They mention that it looks good, is well designed, and is worth every penny. Some say that the heat shield looks great, but does nothing to stop injector heat soaking. Overall, customers are happy with their purchase and recommend it to others.

    "...But when it's all said and done? It looks great and fits tight. So it's gotta work, right?UPDATE: July 7, 2019,..." Read more

    "...Top of the engine looks much better.I found it best to install the injector wraps after the fuel rail was re-installed...." Read more

    "...It looks good when installed.The exhaust manifold heat shield was and easy install as well. The injector wraps were tricky...." Read more

    "...Otherwise this product worked well. O rings were great, make sure you seat them entirely when re installing. If you have a 4.0 you need this...." Read more

    13 customers mention10 positive3 negative

    Customers like the vapor lock. They mention it seems to have quelled their vapor locking issue for the most part. Some say it's an easy fix.

    "...and hotter than ever in Memphis traffic and getting absolutely NO vapor lock on any cylinder...." Read more

    "...It has worked as described. No more check engine light. No more vapor lock." Read more

    "It seems to have quelled my vapor lock issue for the most part, but it hasn't been really hot enough out to say definitively...." Read more

    "...This is caused by a phenomenon called heatsoak or vapor lock, which means the fuel inside the fuel rail and injectors have been heated up to the..." Read more

    49 customers mention34 positive15 negative

    Customers are mixed about the quality of the engine component cap. Some mention it's well-engineered and well-designed, while others say that it'll break easily.

    "...Everything fit like it's supposed to, thicker and higher quality material, should last a long time." Read more

    "This is definitely a well put together product, it fits REALLY well, almost too well, and it works...." Read more

    "...The plastic cover for the injector wire harness is easy, but appears hard. Take off the top cover and move the wire harness out of the way...." Read more

    "...Happy with the instructions and quality of the materials, including the o-rings." Read more

    41 customers mention28 positive13 negative

    Customers are mixed about the heat soak of the engine component cap. Some mention that it solves the heat issue, while others say that it still gets hot and fails.

    "Great product. It is MUCH better than the original heat shielding...." Read more

    "This product is great. It solved my heat soak problem...." Read more

    "...The injector wraps worked well.Heat soak is a bad problem in high mileage Cherokees. This product helped, but did not cure my heat soak...." Read more

    "Took a minute to Install but so far no heat soak or overheating. Would recommend" Read more

    26 customers mention16 positive10 negative

    Customers are mixed about the value of the engine component cap. Some mention it's a great solution and worth the price, while others say it'd be better off spending money on a different product.

    "...PLUS!! It comes with two stickers... so that alone is worth the money. :)" Read more

    "...It had ~maybe~ improved it by 5% or so but it heat soaked and missed on startup the literal second time I tested it...." Read more

    "...I was hesitant, but it’s been worth the money." Read more

    "...Upon opening the box, this heat insulation kit appears to be worth the money. But that's where I stop having good things to say about it...." Read more

    Will fit a 2006 Jeep 4.0 with small modifications
    5 Stars
    Will fit a 2006 Jeep 4.0 with small modifications
    I bought this kit when I had to replace fuel injectors on my 2006 Jeep Wrangler Rubicon Unlimited with the 4.0 I6The description says it will not fit the 06 but I included a photo of my old nasty stock one vs the new one. I used some heavy duty scissors to cut what I needed for it to work. I didn’t have to cut much at all. The wrap for the fuel rail needed a small cut in the fabric to allow the fuel pressure test port to go through. I assume it is in different positions depending on the year so that is why it isn’t pre cut. The slots for the injectors and fuel connection port line up good. A tip would be to start with the fuel port first then wrap it around. Once that is done then install your injectors. I upgraded to Bosch 4 holes but the kit came with a set of o rings. Inspect your injector connector wiring. I had some cracked wiring and had to order some EV6 pigtails. I didn’t catch it until installation which cost me some time. I really like this kit and it saved me a lot of time. I couldn’t find another pre cut piece of the shielding anywhere
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    Top reviews from the United States

    Reviewed in the United States on April 7, 2019
    43 people found this helpful
    Report
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    Reviewed in the United States on September 27, 2022
    Customer image
    5.0 out of 5 stars Will fit a 2006 Jeep 4.0 with small modifications
    Reviewed in the United States on September 27, 2022
    I bought this kit when I had to replace fuel injectors on my 2006 Jeep Wrangler Rubicon Unlimited with the 4.0 I6
    The description says it will not fit the 06 but I included a photo of my old nasty stock one vs the new one. I used some heavy duty scissors to cut what I needed for it to work. I didn’t have to cut much at all. The wrap for the fuel rail needed a small cut in the fabric to allow the fuel pressure test port to go through. I assume it is in different positions depending on the year so that is why it isn’t pre cut. The slots for the injectors and fuel connection port line up good. A tip would be to start with the fuel port first then wrap it around. Once that is done then install your injectors. I upgraded to Bosch 4 holes but the kit came with a set of o rings.
    Inspect your injector connector wiring. I had some cracked wiring and had to order some EV6 pigtails. I didn’t catch it until installation which cost me some time.
    I really like this kit and it saved me a lot of time. I couldn’t find another pre cut piece of the shielding anywhere
    Images in this review
    Customer image Customer image Customer image
    Customer imageCustomer imageCustomer image
    5 people found this helpful
    Report

    Top reviews from other countries

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    Pacheko31
    5.0 out of 5 stars Fácil de instalar
    Reviewed in Mexico on December 3, 2023
    Customer image
    Pacheko31
    5.0 out of 5 stars Fácil de instalar
    Reviewed in Mexico on December 3, 2023
    Queda perfecto
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    Customer image
    Mr. John C Hugo
    5.0 out of 5 stars PROTECTS THE WHOLE INJECTOR SYSTEM
    Reviewed in the United Kingdom on June 27, 2021
    nor
    5.0 out of 5 stars better than expected
    Reviewed in Canada on June 1, 2019
    Andy62
    5.0 out of 5 stars Good
    Reviewed in Australia on January 31, 2021
    That_Guy
    5.0 out of 5 stars Fits Great no mods needed
    Reviewed in Canada on January 21, 2023
    Customer image
    That_Guy
    5.0 out of 5 stars Fits Great no mods needed
    Reviewed in Canada on January 21, 2023
    Installed in a 99 Grand Cherokee. No mods needed for the fuel rail wrap. Super handy it came with new injector O rings. Absolutely recommend it to others than want to keep heat away from the fuel system.
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