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RedRock 4x4 Inner Fender Liner Kit - 4-Piece (07-18 Jeep Wrangler JK)

Market Price $400.99 You Save 11% ($46.00)
Our Price

$354.99 (kit)

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  • Item J104233

Will this fit your Wrangler?

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Ship to: Ashburn - 20149
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    Features, Videos & Details

    • Creates a Clean, Finished Look
    • Crafted from High Density Polyethylene (HDPE)
    • Bolt-On Installation
    • Includes Hardware
    • For RedRock 4x4's Flat Fender Flare Kit
    • Fits 2007-2018 Jeep Wrangler JK Models

    Review & Installation Video

    Cleaner Appearance. Upgrading to flat fenders doesn't mean you'll have to sacrifice the clean look of your stock flare liners. This RedRock 4x4 Inner Fender Liner Kit is designed to transform your the look of your Wrangler after upgrading with the RedRock 4x4 Flat Fender Flares by covering up your JK's newly exposed fender walls.  This Fender Liner Kit will help keep mud, dirt and debris off your inner fender paint and help protect your investment by preventing surface damage which could lead to rust. Its perfect for off road and street Wranglers alike, giving both a clean and finished appearance.

    Durable Construction. This Fender Liner Kit is manufactured from durable HDPE (High Density Polyethylene) for extreme strength. The liners are formed from a custom mold for an exact fit and are already pre-drilled and punched for an easy installation without modification.

    Application. The RedRock 4x4 Inner Fender Liner Kit is designed to fit all 2007-2018 Jeep Wrangler JK and JK Unlimited models. For use with RedRock 4x4's Flat Fender Flares, item J103867.

    RedRock 4x4

    Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Details

    MPN# J104233

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Front Left Side Fender Liner
    • (1) Front Right Side Fender Liner
    • (1) Rear Left Side Fender Liner
    • (1) Rear Right Side Fender Liner
    • (2) Side Marker Retainers
    • Hardware
    Installation Info
    Tech Specs
    Will it fit my Wrangler?
    • JK Rubicon 2 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Rubicon 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Wrangler 2 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Wrangler 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18

      Customer Photos (8) Submit Your Photo

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        Questions & Answers (5)

        5 Top Rated Questions

        Will these cover the gap from a 1 inch body lift?

        • They would not cover the gap from a 1 inch body lift since these are meant to also fit a Wrangler without a body lift.

        Helpful (0)

        I have the red rock flat fender flares installed already. Does this inner fender kit come with the plastic clips you break off to install the inner fender kit for the rear fenders?

        • These kit will come with the installation hardware.

        Helpful (0)

        Hello! Does this fit with Barricade HD Flat fender flares?

        • The RedRock 4x4 Inner Fender Liner Kit is intended for use with the RedRock 4x4 Fender Flare Kit only.

        Helpful (0)

        Will this product work in conjunction with Crawler Conceptz steel fender flares?

        • Thank you for your question! Yes, these would be compatible with the Crawler Conceptz steel fender flares.

        Helpful (0)

        Can these be used in conjunction with the Smittybilt XRC fender flares? Will they properly cover the wheel wells?

        • The RedRock 4x4 Inner Fender Liner Kit is designed specifically to fit the RedRock 4x4 Flat Fender Flare Kit, and has not been tested or designed to fit other fender flares.

        Helpful (0)
        Post Your Question

          Customer Reviews (16) Write a Review

          Overall Rating 3.4

          out of 5 stars

          Installation Time:Afternoon

          • Fit 3.125 3.1
          • Appearance 4.375 4.4
          • Bang For Your Buck 3.625 3.6

          • 2/5

            Installation Time: Afternoon

            July 26, 2018


            The design on the light mount is cheep at best, I bought the inner liners as well so I got 4 clips, 2 broke, the 2 that worked wont last. You do break clips removing the factory fenders, so relying on the fit of the new ones is paramount, my rear inner liners didn't come close to fitting the front had to be modified, defiantly not worth over 600.00 bucks. Overall very disappointing!


            Year: 2018Submodel: Rubicon

            Helpful (6)

          • 3/5

            Installation Time: Afternoon

            June 05, 2018

            A Few Issues

            Got the liners and fenders. As mentioned by others, rear liners did not fit well and drilling was required. Front liners and fenders were each missing a hole and require drilling. Front liners are not like in photos and instructions. Mount for side running lights is missing. Luckily there is a mount with the fenders. The missing mont (hole shown in photos and video) for the liners required a return and the same configuration was sent the second time. Only three fender flares were delivered the first time requiring another return. Recommend an additional hole and bolt be added at frontmost position on front fender flares.


            Year: 2008Submodel: Wrangler

            Helpful (6)

          • 5/5

            Installation Time: Afternoon

            June 03, 2018

            Easy to install

            There are probably heavier duty fenders but I like the fact they flex. I’m hard on my Jeep and like the bend when absolutely necessary.


            Year: 2008Submodel: Wrangler

            Helpful (6)

          • 3/5

            Installation Time: Afternoon

            May 23, 2018

            Liners don't fit as well as the fender flares

            I ordered both the liners and the fender flares at the same time. Although the flares pretty much matched perfectly, I had a heck of a time getting the liners to fit - especially on the rear of the Jeep. The holes did not line up - some were off as much as 3/8 inch, and I ended up trimming excess material from the edge of the liners to get them to fit into the well properly. I really do like the looks, but the installation didn't go well until I reamed out some of the mounting holes and got the excess material trimmed off.


            Year: 2008Submodel: Rubicon

            Helpful (6)

          • 1/5

            March 06, 2018


            I was looking forward to having actual fender liners on my 2016 JKU. Liners were very badly trimmed and holes didn’t aligned at all. Worst part is I call to send them back to Extreme Terrain I have to pay $150 for shipping.


            Year: 2016Submodel: Wrangler

            Helpful (6)

          • 5/5

            Installation Time: Afternoon

            January 01, 2018

            Clean look less noise

            I run a fairly aggressive Tire and going with the plastic inner panels and not the steel inner panels was one of my better moves the rocks hitting the inner panels driving on dirt and gravel roads are not near as noisy no rattles from the steel panels


            Year: 2011Submodel: Rubicon

            Helpful (7)

          • 3/5

            Installation Time: Afternoon

            November 10, 2017

            Not bad

            They look good but installation was a bit tricky because the rear liners didn't line up nicely with all the pre drilled holes where they belong. Had to muscle it in. Directions are vague but you can figure it out.


            Year: 2014Submodel: Wrangler

            Helpful (8)

          • 1/5

            September 29, 2017

            Hard time

            Hard time getting the holes to line up with the flares. Very frustrating.


            Year: 2008Submodel: Wrangler

            Helpful (9)

          • 5/5

            Installation Time: Weekend

            September 23, 2017

            Looks awesome

            Great product if your handy. I painted mine to match my jeep. However if you purchase make sure you buy the inner fenders to go along with it. They told me I could use my factory ones you can't. If you try they look horrible well worth the money. I like these because not many have them on the road and everywhere I go people love them.


            Year: 2014Submodel: Rubicon

            Helpful (7)

          • 3/5

            August 24, 2017


            I like the looks of the liner and would have rated them higher however, some holes did not line up well.


            Year: 2015Submodel: Wrangler

            Helpful (7)

          • 4/5

            Installation Time: Afternoon

            August 01, 2017

            Fender liner install

            Works well, would have been easier if the previous owner would have installed the fenders properly. Still looks great with the lights installed.


            Year: 2014Submodel: Wrangler

            Helpful (7)

          • 1/5

            April 25, 2017

            Did not fit

            Was told by rep that this was a perfect fit. Had my Jeep all ready and apart. Tried this on and negative... returned item


            Year: 2017Submodel: Wrangler

            Helpful (7)

          • 5/5

            Installation Time: Less than 1 Hour

            April 19, 2017

            Great fenders

            Fenders are great! Definitely better then stock lol!


            Year: 2011Submodel: Wrangler

            Helpful (7)

          • 5/5

            Installation Time: Afternoon

            April 11, 2017

            RedRock Inner Fender Liner Kit

            These were a great purchase. I did not like the look of the Jeep with no liners. After I took off the OEM gear that was on my Jeep, it did not look good at all. These make it look clean and sharp! I would definitely recommend these to anyone!


            Year: 2015Submodel: Rubicon

            Helpful (9)

          • 3/5

            Installation Time: Afternoon

            February 26, 2017

            Dont quite line up right

            The liners didn't really seem to be made for the model I bought them for. I installed on 2016 Wrangler Sahara Unlimited. I had to drill out some holes that were too small, and about 70 of the other holes lined up. Im not sure if the liners i reveived had a manufacturing defect but they took quite a bit of work to get on.


            Year: 2016Submodel: Wrangler

            Helpful (10)

          • 5/5

            September 14, 2016

            Dream saver

            I wanted flat fenders on the wife's JKU from day 1 but she wasn't a fan of the exposed look it created. I wanted the travel and better clearance. These let me get the function while still keeping the look. Brilliant. I you do the install with the fender flares it isn't much extra work.


            Year: 2016Submodel: Wrangler

            Helpful (9)

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