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Sold by: Extruded Solutions, Inc.
Sold by: Extruded Solutions, Inc.
(3062 ratings)
100% positive over last 12 months
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ESI ROK BLOCK 4.25 inch Tailgate Gap Cover and Ultimate Tailgate Seal with Taper Seal 6ft for Sidewalls

4.4 4.4 out of 5 stars 205 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Truck Tailgate Seals by ESI

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Brand ESI
Material Rubber
Lock Type Tailgate

About this item

  • Both ORIGINAL ESI EPDM rubber seals eliminate dust and water from entering in through the gaps at the tailgate bottom and sidewalls when using a truck cap or tonneau cover. Adheres to all surfaces including spray on bed liners.
  • 4.25 inch width ROK BLOCK covers the tailgate bottom and eliminates debris from falling into the tailgate gap, greatly reducing clean-up time when hauling material. Doubles as a tailgate seal for the tailgate bottom. For bed and tailgate liners ROK BLOCK installs under the liner.
  • 6ft patented Ultimate Tailgate Seal with Taper Seal installs on the sidewalls. Packaged or online directions must be followed to properly install this product.
  • PARTS IN THIS COMBO KIT ARE NOT COMPATIBLE WITH THE FOLLOWING PICKUPS: read "PRODUCT DESCRIPTION"
  • 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.
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$49.95
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$26.95 ($2.70/Foot)
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Product Description

If you have a truck bed cap or tonneau cover and want to keep out dust and water from your truck bed but occasionally use your truck for transporting loose material, then this is the solution. ROK BLOCK installs over the tailgate bottom gap and patented Ultimate Tailgate Seal with Taper Seal installs on the sidewalls. Both seals adhere using 3M ST1200 tape. For bed and tailgate liners ROK BLOCK installs under the liner. To buy ROK BLOCK only purchase ASIN: B00BPE4AP6. PARTS IN THIS COMBO KIT ARE NOT COMPATIBLE WITH THE FOLLOWING PICKUPS: Chevrolet Silverado (buy ASIN: B075PWVW67 and B08R7NNV2B), Chevrolet Colorado 2023 and newer (buy ASIN: B08WDQN5CB and B075PWVW67), Chevrolet Silverado with Multi-Flex Tailgate (buy ASIN: B075PWVW67 and B085896S8R), 2021 and newer Ford F Series trucks with a hinge retainer bracket (buy ASIN: B075PWVW67 and B0B5Y9MFCK), Ford Lightning (buy ASIN: B075PWVW67 and B0B5Y9MFCK), Ford Maverick (buy ASIN: B00BPE4AP6 and B0BWV7HJMZ), Ford Ranger 2019 and newer (buy ASIN: B075PWVW67 and B07YF5BL8M), Ford Raptor (buy ASIN: B00BPE4AP6 and B0B5Y9MFCK), GMC Sierra (buy ASIN: B075PWVW67 and B08R7NNV2B), GMC Canyon 2023 and newer (buy ASIN: B08WDQN5CB and B075PWVW67), GMC Sierra with MultiPro Tailgate (buy ASIN: B075PWVW67 and B085896S8R), Nissan Frontier (buy ASIN: B075PWVW67 and B09F4D4YPG), Nissan Titan (buy ASIN: B00BPE4AP6 and B08YRZB3H3), RAM 2500 and 3500 (buy ASIN: B075PWVW67 and B00IPQWXZQ), RAM with RamBox (buy ASIN: B075PWVW67 and B08L21DGNB). For all pickups/utes outside the U.S. market buy ASIN: B076NFYH2R. 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. 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. Patents issued and pending. MADE IN USA.

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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 4.25 inch Tailgate Gap Cover and Ultimate Tailgate Seal with Taper Seal 6ft for Sidewalls


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Customer reviews

4.4 out of 5 stars
4.4 out of 5
205 global ratings

Customers say

Customers like the dust protection and ease of installation of the tonneau cover. They mention that it keeps dust and dirt out of the box and that the instructions are detailed. They appreciate the quality. That said, some disagree on adhesion, seal, and holding.

AI-generated from the text of customer reviews

27 customers mention27 positive0 negative

Customers are satisfied with the quality of the tonneau cover. They mention that it works well, is excellent, and is solid. Some say that it's worth every penny.

"...Seems to be very high quality stuff. Installed on 2022 Tundra." Read more

"...with the strips lifting away from the surfaces, and it's plenty sturdy material. I think it should hold up well for a good long time...." Read more

"Works as expected. Hope it holds." Read more

"...this primarily for dust and water prevention and it has performed better than I expected...." Read more

17 customers mention13 positive4 negative

Customers find the installation of the tonneau cover to be easy. They mention that the instructions are detailed and the product comes with alcohol pads and an adhesion promoter pen. This makes installation a lot easier.

"Very easy to install, about 20 minutes. Read and follow the instructions! Take your time and it will look like an OEM option...." Read more

"...It was easy to put on, and the adhesion promoter stuff they give you really works!..." Read more

"...I followed the instructions carefully and it was very easy. I ended up with about 3 feet of extra strips (a mix of all three pieces) when I was done...." Read more

"...This product has reduced that to a light dusting. The directions a little vague, but I think the reason is every truck is different and requires..." Read more

12 customers mention9 positive3 negative

Customers like the dust protection of the tonneau cover. They mention that it keeps dust, dirt, and debris from entering the truck bed.

"I have a truck with a camper shell and it helps keeping the dirt,dust and weather out." Read more

"...Not a little dirt but, small rocks. This product has reduced that to a light dusting...." Read more

"...It took a lot of strength to remove the gap cover and it left residue on my bed which I had to scrape and pick at for over an hour to get off...." Read more

"...adhesive enhancer product it has stayed in place and does well holding out the dust...." Read more

18 customers mention10 positive8 negative

Customers have mixed opinions about the adhesion of the tonneau cover. Some mention that it has great adhesivity if done correctly, while others say that it failed after 24 hours of cure time. Some customers also mention that the sticky tap does not hold and the cover just binds up before they can get it to latch.

"...It was easy to put on, and the adhesion promoter stuff they give you really works!..." Read more

"...It pulls tight and the adhesive can’t tolerate it." Read more

"...Seems to be sticking very well. If the adhesion fails, I'll be sure to update this review." Read more

"You have to follow the instructions very closely. It's a bit tricky with the adhesive, once you put down the activator there's no readjusting, and..." Read more

13 customers mention9 positive4 negative

Customers are mixed about the seal. Some mention that it provides a good seal between the tailgate and the pickup bed, while others say that the tapered seals are almost completely worthless, it is also about an inch too small to seal the tailgat and that the seal started to peel from the tailgate.

"...Definitely helps keep wetness and dirt out of my truck bed when off roading!" Read more

"...Looks good and seals good. Note: I did not leave my tailgate down for 24 hours as in the instructions. Only about 5 hours...." Read more

"...A week later the seal started to peel from the tailgate, it’s still on there, but the opening now is even larger than it was before...." Read more

"This product makes a good seal and the ROK BLOCK should keep most rocks, dirt, or debris from getting between the bed and tailgate...." Read more

6 customers mention3 positive3 negative

Customers are mixed about the holding of the tonneau cover. Some mention that it holds well, while others say that it doesn't hold on the factory installed spray-on bed liner. Some customers also mention that the cover lasted maybe two days before separating.

"I've had this on my truck for a couple of months and it is holding up perfectly...." Read more

"...it cure in a heated garage for over 24 hours and it lasted maybe two days before separating." Read more

"...Has held up well so far with things being drug across it and it being stepped on etc." Read more

"Doesn't hold on the factory installed spray-on bed liner...." Read more

5 customers mention3 positive2 negative

Customers are mixed about the size of the tonneau cover. Some mention that it keeps small items from getting wedged, while others say that the 6 foot main seal is not enough length to cover both the sides.

"...I live on a dirt road and this has been extremely helpful keeping the things under my bed cover clean...." Read more

"...in the listing it is not apparent that the 6 foot main seal is not enough length to cover both the sides and the bed/tailgate seam on my Tacoma,..." Read more

"...tailgate and the pickup bed (keeps out a lot of rain/snow) and keeps small items (rocks) from getting wedged between the tailgate and the bed." Read more

"2020 Tacoma, not long enough...." Read more

Great so far. Measurements in review.
5 Stars
Great so far. Measurements in review.
Pretty difficult to figure out from all of the reviews how long each piece of material is. Even after reading through all of the questions I still wasn't sure what I was getting, and another review said it wasn't enough to seal the bed of the Tacoma (which is wrong...more to come).You receive three pieces of material: The first is the tailgate seal between the bed and the tailgate, which was just over 63" long and slightly over 4" wide as seen in the photo. The next piece is for sealing up the sides of the bed. The piece I received was just over 74" long and around an inch wide. The third piece is around 14" long. It has a thicker bulb portion than the longer piece does and it is there to seal up any other small gaps you might have. Also included are detailed instructions, some alcohol pads, and an adhesion promoter pen that you apply before you peel and stick the seals.The process of applying it is very straightforward. I followed the instructions carefully and it was very easy. I ended up with about 3 feet of extra strips (a mix of all three pieces) when I was done. I was using it on a 3rd gen Tacoma (which has the same width bed/tailgate as every other third gen Tacoma.I shone a light from the bed towards the tailgate to make sure I was covering all of the gaps. Seems to be sticking very well. If the adhesion fails, I'll be sure to update this review.
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Top reviews from the United States

Reviewed in the United States on February 25, 2023
2 people found this helpful
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Reviewed in the United States on June 3, 2021
One person found this helpful
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Reviewed in the United States on July 30, 2023
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Reviewed in the United States on April 28, 2022
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MS
5.0 out of 5 stars Great so far. Measurements in review.
Reviewed in the United States on April 28, 2022
Pretty difficult to figure out from all of the reviews how long each piece of material is. Even after reading through all of the questions I still wasn't sure what I was getting, and another review said it wasn't enough to seal the bed of the Tacoma (which is wrong...more to come).

You receive three pieces of material: The first is the tailgate seal between the bed and the tailgate, which was just over 63" long and slightly over 4" wide as seen in the photo. The next piece is for sealing up the sides of the bed. The piece I received was just over 74" long and around an inch wide. The third piece is around 14" long. It has a thicker bulb portion than the longer piece does and it is there to seal up any other small gaps you might have. Also included are detailed instructions, some alcohol pads, and an adhesion promoter pen that you apply before you peel and stick the seals.

The process of applying it is very straightforward. I followed the instructions carefully and it was very easy. I ended up with about 3 feet of extra strips (a mix of all three pieces) when I was done. I was using it on a 3rd gen Tacoma (which has the same width bed/tailgate as every other third gen Tacoma.

I shone a light from the bed towards the tailgate to make sure I was covering all of the gaps. Seems to be sticking very well. If the adhesion fails, I'll be sure to update this review.
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5 people found this helpful
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Reviewed in the United States on September 10, 2023
One person found this helpful
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Top reviews from other countries

Francois Gie
5.0 out of 5 stars Great Product
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5.0 out of 5 stars Good Choice
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Darc
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007
2.0 out of 5 stars 3 months later
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