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Sold by: Extruded Solutions, Inc.
Sold by: Extruded Solutions, Inc.
(3061 ratings)
100% positive over last 12 months
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ESI ROK BLOCK Tailgate Gap Cover 4.25" width

4.4 4.4 out of 5 stars 839 ratings

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  • The ORIGINAL Tailgate Gap Cover ROK BLOCK eliminates debris from falling into the tailgate gap area, greatly reducing clean-up time. Note: Use ROK BLOCK XL 7” width (search ASIN: B075PWVW67) for the following compatible pickups: Silverado, 2023 and newer Colorado, Sierra, 2023 and newer Canyon, 2021 and newer Ford F Series trucks with a hinge retainer bracket, Ford Lightning, Ford Ranger 2019 and newer, Nissan Frontier, RAM 2500 and 3500 and all pickups / utes outside of the U.S. market
  • When tailgate is closed ROK BLOCK doubles as a tailgate seal for the tailgate gap, preventing dust, fumes and water intrusion when using a truck cap or tonneau cover. To seal the sidewalls install patented Tailgate Seal with Taper Seal (sold separately, ASIN: B00IPQWXZQ).
  • 3M ST1200 tape is a high-quality automotive grade tape that adheres to all surface finishes, including spray on bed liners. For bed and truck liners ROK BLOCK installs under the liner.
  • Apply when the air and surface temperature is between 50° - 104°F (10° - 40°C). This product requires 25 lbs. of pressure to bond adhesive. MADE IN USA
  • Excluded Pickups (4) for both ROK BLOCK and ROK BLOCK XL: Honda Ridgeline with Dual Action Tailgate, Hyundai Santa Cruz, RAM with Multifunction Tailgate and Ford with Pro Access Tailgate.
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Product Description

ROK BLOCK tailgate gap cover bridges the gap between the truck bed and tailgate, preventing the loss of materials such as mulch, sand and rock.

Rok Block in Jar

Made in USA

  • The ORIGINAL Tailgate Gap Cover ROK BLOCK eliminates debris from falling into the tailgate gap area.
  • Note: Use ROK BLOCK XL 7” width (search ASIN: B075PWVW67) for the following compatible pickups: Silverado, 2023 and newer Colorado, Sierra, 2023 and newer Canyon, 2021 and newer Ford trucks with a hinge retainer bracket, Ford Lightning, Ford Ranger 2019 and newer, Nissan Frontier, RAM 2500 and 3500 and all pickups / utes outside of the U.S. market. Excluded Pickups (4) for both ROK BLOCK and ROK BLOCK XL: Honda Ridgeline with Dual Action Tailgate, Hyundai Santa Cruz, RAM with Multifunction Tailgate and Ford with Pro Access Tailgate. TIP: If you have a truck bed cap or tonneau cover and occasionally use your truck for transporting loose material then install ROK BLOCK over the tailgate gap area and install patented Ultimate Tailgate Seal with Taper Seal on the sidewalls (purchase ASIN: B019QFCZ7A).
  • When tailgate is closed ROK BLOCK doubles as a tailgate seal for the tailgate gap, preventing dust, fumes and water intrusion when using a truck cap or tonneau cover. To seal the sidewalls install patented Tailgate Seal with Taper Seal (Sold Separately)

With over 30 years' experience in the rubber extrusion and taping industry, ESI specializes in Custom Rubber Extrusion and taping profiles.

Rok Block on Tundra

Rok Block Roll

Rok Block on Colorado

3M ST1200 tape adheres to all surface finishes, including spray on bed liners.

For bed liners ROK BLOCK installs under the liner. Apply when the air and surface temperature is between 55° - 104°F (13° - 40°C).

Original Tailgate Gap Cover since 1999, Made in USA

TIP: If you have a truck bed cap or tonneau cover and you occasionally use your truck for transporting loose material then install ROK BLOCK over the tailgate gap and install 6ft patented Tailgate Seal with Taper Seal to the sidewalls (COMBO kit sold separately)

Eliminates debris from falling into the tailgate gap area, greatly reducing clean-up time

When the tailgate is closed ROK BLOCK folds into the tailgate gap, doubling as a tailgate seal. Prevents dust, fumes and water intrusion when using a truck cap or tonneau cover.

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Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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ESI ROK BLOCK Tailgate Gap Cover 4.25" width


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Customer reviews

4.4 out of 5 stars
4.4 out of 5
839 global ratings

Customers say

Customers like the quality, ease of installation, fit and appearance of the auto part. They mention that it works wonderfully, is easy to trim to fit and that it fits perfectly. They also appreciate the seal, and appearance. However, some customers differ on adhesion, durability, and thickness.

AI-generated from the text of customer reviews

101 customers mention94 positive7 negative

Customers are satisfied with the quality of the auto part. They mention that it works well, is easy to install, and keeps out dust and moisture. Some say that the rubber and 3m tape is strong. Overall, most are happy with their purchase and recommend it to others.

"...This was easy to install and has worked great, eliminating the rock problem." Read more

"...I had this installed from the beginning and it held up fantastically...." Read more

"...It is high-quality thick rubber, and seems to be very durable. I have had it on my truck for about three months now the adhesive is holding very well." Read more

"...I did'nt have to be. This thing is really stuck to the bed and holds really well. I would buy again.Original :..." Read more

52 customers mention49 positive3 negative

Customers find the installation process of the auto part to be easy. They mention that it is easy to trim to fit and install.

"...This was easy to install and has worked great, eliminating the rock problem." Read more

"...Not sure exactly what is going on. The item was easy to install and seems to be good quality." Read more

"Installed this on my 2020 F150. Was easy to install and works exactly as described keeping out dust and moisture." Read more

"...Easy to trim to fit and install. Wish I would have got it earlier is all" Read more

14 customers mention10 positive4 negative

Customers like the fit of the auto part. They mention that it fits perfectly, is the right size, and suits very well to the 2nd gen Tacomas with some trimming. Some say that it's perfect for their truck.

"...This roller will make your installation a lot easier. It's small enough to go into the bed grooves and get a good seal...." Read more

"Suited very well to the 2nd gen Tacomas with some trimming...." Read more

"...I did not give this product five points because it could have been two inches wider...." Read more

"I was not sure what to expect but it just works. Perfect fit on a 2021 Ram Limited...." Read more

14 customers mention14 positive0 negative

Customers like the seal. They mention that it's the best tailgate gap sealer on the market, it'll hold strong so far, and it seals up the large gap between the tailgate and bed. The installation process was easy, and the gap cover was plenty large enough for their vehicle.

"...forgetting to “baby” the seal so as not to snag it, the seal was in perfect shape and only about a .25” section on the end of the seal had lifted...." Read more

"...I would buy again.Original :The rubber seal is ok so far......" Read more

"...It's small enough to go into the bed grooves and get a good seal...." Read more

"...adding the seal strips on each side of the gate, I’ve a pretty good seal." Read more

9 customers mention7 positive2 negative

Customers like the appearance of the auto part. They say it looks good and is a very cool idea.

"...It's easy to install, and looks good.I had a Line-X spray in bed liner, and wondered if it would adhere well...." Read more

"...Very Happy with look and function!Update...2 months almost and still very happy...." Read more

"...Went in relatively easy and looks great. Time will tell but appears to a be great purchase." Read more

"I have a Toyota Tundra, and it has the most poorly designed tailgate ever...." Read more

56 customers mention28 positive28 negative

Customers are mixed about the adhesion of the product. Some mention that it adheres well, while others say that it does not stick well. Some say that the tape would not adhere to their bedliner even after thorough prep. Some customers also mention that the product started to fall off after one day.

"...I have had it on my truck for about three months now the adhesive is holding very well." Read more

"Does what it’s supposed to do. been a few months now the glue is starting to release from the truck but easy fix." Read more

"...I did'nt have to be. This thing is really stuck to the bed and holds really well. I would buy again.Original :..." Read more

"...work ok except that the rubber strip is so narrow that it gets caught on the lip of the bedliner at the bottom of the tailgate and gets bunched up..." Read more

18 customers mention6 positive12 negative

Customers are mixed about the durability of the auto part. Some mention it lasts a long time with no rips or tears, while others say it tears easy and disintegrates to nothing in about 10 seconds.

"...They are extremely thin and upon using them, they tend to disintegrate to nothing in about 10 seconds...." Read more

"...But, it’s been several years now it’s not showing any cracks...." Read more

"...My bed and tailgate have the rhino lining and the small foam pad fell apart. I found that rolling the applicator pad worked best." Read more

"...What I am not happy about is that within a few months, it has several tears and has now started coming off on one side...." Read more

8 customers mention5 positive3 negative

Customers are mixed about the thickness of the auto part. Some mention that it is a thick rubber, so it appears it will last a long time, it is high-quality thick rubber and seems to be very durable, while others say that the product is too thick for their truck and not as heavy as the first one.

"...It is high-quality thick rubber, and seems to be very durable. I have had it on my truck for about three months now the adhesive is holding very well." Read more

"...They are extremely thin and upon using them, they tend to disintegrate to nothing in about 10 seconds...." Read more

"Solid rubber and very strong 3m tape with primer or promoter to help it stick. Easy to trim to fit and install...." Read more

"...This is a thick rubber, so it appears it will last a long time...." Read more

Works great!
4 Stars
Works great!
I like this tailgate seal because it keeps road spray during rain storms from going up into the truck bed. It is high-quality thick rubber, and seems to be very durable. I have had it on my truck for about three months now the adhesive is holding very well.
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Top reviews from the United States

Reviewed in the United States on January 3, 2024
Reviewed in the United States on December 14, 2023
One person found this helpful
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Reviewed in the United States on September 22, 2023
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4.0 out of 5 stars Works great!
Reviewed in the United States on September 22, 2023
I like this tailgate seal because it keeps road spray during rain storms from going up into the truck bed. It is high-quality thick rubber, and seems to be very durable. I have had it on my truck for about three months now the adhesive is holding very well.
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Reviewed in the United States on October 16, 2017
One person found this helpful
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Reviewed in the United States on August 1, 2023
Reviewed in the United States on October 12, 2023
Reviewed in the United States on December 21, 2023
Reviewed in the United States on October 4, 2023

Top reviews from other countries

Brendon Churchill
5.0 out of 5 stars 2 weeks in. Works great.
Reviewed in Canada on July 14, 2023
Ronnie Viel
5.0 out of 5 stars Easy install
Reviewed in Canada on November 11, 2023
Eric
4.0 out of 5 stars tailgate gap for f150
Reviewed in Canada on October 1, 2023
LS
5.0 out of 5 stars Great product, get it!
Reviewed in Canada on September 3, 2020
Brian Smith
5.0 out of 5 stars Totally seals the bottom of your tailgate!
Reviewed in Canada on June 18, 2023