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Suntop Fastback Top U4 Windows - Black Diamond (07-18 Jeep Wrangler JK 4 Door)

Item J130573
ExtremeTerrain no longer carries the Suntop Fastback Top U4 Windows - Black Diamond (07-18 Jeep Wrangler JK 4 Door).
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Features & Details

  • Superior Fastback Top U4 Windows
  • Works Perfectly with Fastback Top U4
  • Ensures Ideal Protection
  • Offers a Complementary Style
  • Finished with a Sleek Black Diamond
  • Tinted, Scratch-Resistant Plastic
  • Can be Folded to Save Space
  • Conveniently Hardware Free
  • DOT Approved
  • Sold as a Pair
  • Straightforward Installation
  • Fits All 2007-2018 Jeep Wrangler JKs with 4 Doors

Superior Style. If you're searching for a top-notch addition to your 2007-2018 Jeep Wrangler 4-door JK's Fastback Top U4, make sure to check out Suntop's Black Diamond Fastback Top U4 Windows. These high-quality windows are constructed to work perfectly with your fastback top so that you can easily achieve the sleek and streamlined look your Jeep needs to stand out on the trails and in the streets. The windows not only have an unbeatable style that immediately sets your Jeep apart, but they also ensure its interior remains protected from unexpected inclement weather conditions.

Plastic Construction. In order to guarantee these Fastback Top U4 Windows are tough enough to be used for a long time to come, they are constructed from heavy-duty, scratch-resistant plastic. With a design that allows for the windows to be folded to save space when not installed as well as a completely hardware-free build, these windows offer maximum convenience. The DOT-approved windows also come with a sleek black diamond finish that perfectly matches your top's look and adds a sinister, blacked-out accent to your already tough Jeep.

Installation. Using light mechanical skills, these windows can be quickly installed. Just set aside about 1 hour for the installation.

Application. Suntop's Black Diamond Fastback Top U4 Windows fit all 2007-2018 Jeep Wrangler JKs with 4 doors.

Fitment: Details

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (2) Windows
Installation Info
Will it fit my Wrangler?

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      Questions & Answers (5)

      5 Top Rated Questions

      I currently have a hard top. So I don't have door surrounds. Are these included with the bowless soft top?

      • You will want to be certain to select the "FASTBACK TOP (INCLUDES BOWLESS TOP & FASTBACK TOP WINDOWS)" to receive the full kit with door surrounds.

      Helpful (3)

      I have a hard top ? is when I take my hard top off,can i just fold this up and carry this in the back and install if needed?

      • The frame/hardware of the soft top would need to be installed prior to installation of this soft top, and uninstalled prior to putting your hard top back on.

      Helpful (0)

      If I don’t have a tailgate bar, will I need to purchase one? I have a hard top, just FYI

      • A tailgate bar is not required for install.

      Helpful (0)

      Will the fastback work with my best top bimini top?

      • The Suntop Fastback Top will need to be removed for use with a bikini or bimini style top.

      Helpful (0)

      Does anyone have pictures of what this looks like when it is down? Does it come completely off? Also rain proof? does it cover all the way to the doors or is there room for dripping?

      • The Suntop Fastback Top does not fold down, it would have to be completely removed if you wanted the top down. This top would be rain proof and would create a water proof seal around the doors.

      Helpful (0)
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        Customer Reviews (5) Write a Review

        Overall Rating 4.2

        out of 5 stars

        Installation Time:Afternoon

        • Fit 5 5
        • Appearance 5 5
        • Quality 5 5
        • Bang For Your Buck 4.666667 4.7

        • 5/5

          Installation Time: Less than 1 Hour

          September 16, 2019

          Sun top

          I love the sun top fastback it is easy and fast to install or switch between tops. As much as I like it I would have to say that I would not use this as primary top for all seasons. I rotate between this and hard top and like that I can easily change the entire look of my Jeep. Installing the small frame rails is just a couple bolts then stretching top on much easier when warm from sun by the way. It does flap pretty good with one window down but I shove a half empty bottle of water between speaker bar and top and that takes care of it. It’s been through some pretty good storms and stayed dry but make sure to drive a bit before opening window after rain or you may get a surprise. Overall great top if looking to switch between tops I can have this off and hard top on in 15 min but I have done it a couple times now and I use a hoist.


          Year: 2017Submodel: Wrangler

          Helpful (0)

        • 5/5

          Installation Time: Afternoon

          July 14, 2019

          Love it, great decision

          I love being able to remove the top quickly. Yes, I get some leaks from the pooling of water overnight, the water rolls off the edge. It is best to make sure the top is as tight possible to minimize the leaks. Took a bit to get familiar with the pieces before installation.


          Year: 2018Submodel: Wrangler

          Helpful (1)

        • 1/5

          Installation Time: Afternoon

          June 28, 2019

          Little to leave desired

          Short and to the point. 1. Center part of door frame bent 2. Small screw to connect the door bar from the Jeep frame to included door frame stripped immediately. 3. Instruction are horrible. 4. Many gaps for water to come I. Hasn’t rained yet, so I will follow up with that disaster. 5. Not sure if it’s my fault or just bad construction but the windshield bar does t seem to sit right in the door frame 6. There are some clips along the front part of the top that I have no idea what to do with. Revert back to #3 I think that’s it for now. If I wasn’t 2 hours away from where I stored my hard top, I would have put it back on. I’m going to try to return this thing. Not happy at all. P.S. it did not take 30 minutes to install. More like 4 hours. Once again. Revert back to #3.


          Year: 2009Submodel: Wrangler

          Helpful (0)

        • 5/5

          Installation Time: Afternoon

          April 08, 2019

          Great top

          Top arrived quickly and was easy to install even though the weather was a little cooler than i'd liked it to be. Install was about a couple hours. Definitely like the look of this top. I've only had the top for about a week and it has done well in all of the rain we've been getting.


          Year: 2016Submodel: Wrangler

          Helpful (10)

        • 5/5

          Installation Time: Less than 1 Hour

          October 19, 2018


          This product fit nicely on my Jeep that I totally have and is not just for 10 bucks


          Year: 2018Submodel: Rubicon

          Helpful (14)