--- product_id: 278879239 title: "ROK Block 4.25 inch Tailgate Gap Cover and Ultimate Tailgate Seal with Taper Seal 6ft for Sidewalls" brand: "esi" price: "R2686" currency: ZAR in_stock: true category: "Esi" url: https://www.desertcart.co.za/products/278879239-rok-block-4-25-inch-tailgate-gap-cover-and-ultimate store_origin: ZA region: South Africa --- # 4.25 inch wide tailgate gap cover Patented ESI EPDM rubber seals Proudly MADE IN USA ROK Block 4.25 inch Tailgate Gap Cover and Ultimate Tailgate Seal with Taper Seal 6ft for Sidewalls **Brand:** esi **Price:** R2686 **Availability:** ✅ In Stock ## Summary > 🛻 Seal the deal, ditch the dirt — your truck’s new best friend! ## Quick Answers - **What is this?** ROK Block 4.25 inch Tailgate Gap Cover and Ultimate Tailgate Seal with Taper Seal 6ft for Sidewalls by esi - **How much does it cost?** R2686 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/278879239-rok-block-4-25-inch-tailgate-gap-cover-and-ultimate) ## Best For - esi enthusiasts ## Why This Product - Trusted esi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Made in the USA:** Crafted with pride and quality assurance for the discerning truck owner. - • **Seal Out Dust & Water:** Patented EPDM rubber seals block debris and moisture for a pristine truck bed. - • **Sidewall Ultimate Seal:** 6ft taper seal guards sidewalls, completing your truck bed’s defense. - • **Precision Fit Gap Cover:** 4.25-inch width perfectly covers tailgate bottom gaps, slashing cleanup time. - • **Universal Surface Adhesion:** Strong 3M ST1200 tape bonds to all surfaces, including spray-on bedliners. ## Overview The ROK Block 4.25 inch Tailgate Gap Cover and Ultimate Tailgate Seal combo features patented ESI EPDM rubber seals that prevent dust and water intrusion through tailgate gaps and sidewalls. Designed for trucks with caps or tonneau covers, it installs easily with 3M ST1200 adhesive tape and fits under drop-in bed liners. Made in the USA, this durable 6ft seal kit reduces cleanup time and protects your truck bed from debris, enhancing both utility and longevity. ## 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. Note: For Utility Vehicles (UTV) get ROK BLOCK UTV, search ASIN: B0D435WZM4. The original and patented Tailgate Gap Cover ROK BLOCK installs over the tailgate bottom gap and the original and patented Tailgate Seal with Taper Seal installs on the sidewalls. Both seals adhere using 3M ST1200 tape. For a drop in bed floor liner ROK BLOCK installs under the liner. To get ROK BLOCK only search ASIN: B00BPE4AP6. PARTS IN THIS COMBO KIT ARE NOT COMPATIBLE WITH THE FOLLOWING PICKUPS: Silverado 2020 and newer 1500 (search ASIN: B075PWVW67 and B08R7NNV2B), Silverado 2020 and newer 2500 and 3500 (search ASIN: B075PWVW67 and B09BG3T6NB), Silverado with Multi-Flex Tailgate (search ASIN: B075PWVW67 and B085896S8R), 2021 and newer Ford F Series trucks with a hinge retainer bracket (search ASIN: B076NFYH2R), Silverado EV (available soon), Ford Lightning (search ASIN: B075PWVW67 and B0B5Y9MFCK), Ford Maverick (buy ASIN: B00BPE4AP6 and B0BWV7HJMZ), Ford Ranger 2019 and newer (search ASIN: B075PWVW67 and B07YF5BL8M), Ford Raptor (search ASIN: B00BPE4AP6 and B0B5Y9MFCK), Sierra 2020 and newer (search ASIN: B075PWVW67 and B08R7NNV2B), Sierra 2020 and newer 2500 and 3500 (search ASIN: B075PWVW67 and B09BG3T6NB), Sierra with MultiPro Tailgate (search ASIN: B075PWVW67 and B085896S8R), Sierra EV (available soon), Frontier (search ASIN: B075PWVW67 and B09F4D4YPG), Titan (search ASIN: B00BPE4AP6 and B08YRZB3H3), Hummer EV (available soon), RAM 2500 and 3500 (search ASIN: B075PWVW67 and B00IPQWXZQ), RAM with RamBox (search ASIN: B075PWVW67 and B08L21DGNB), Tacoma 2024 and newer (search ASIN: B00BPE4AP6 and B0DTR77BJ2), Tundra 2022 and newer (search ASIN: B00BPE4AP6 and B0D8TM5HY4). For all trucks/utes outside the U.S. market get ASIN: B076NFYH2R. Excluded trucks (6) for both ROK BLOCK and ROK BLOCK XL: Ford with Pro Access Tailgate, Honda Ridgeline with Dual Action Tailgate, Hyundai Santa Cruz, RAM with Multifunction Tailgate, Rivian and Tesla Cybertruck. 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. ## Features - Both patented 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 bedliners. MADE IN USA. - 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 a drop in bed floor liner ROK BLOCK installs under the liner. Note: For Utility Vehicles (UTV) get ROK BLOCK UTV, search ASIN: B0D435WZM4. - 6ft 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00R8KBV9Y | | Best Sellers Rank | #122,805 in Automotive ( See Top 100 in Automotive ) #13 in Automotive Tailgate Seals | | Brand Name | ESI | | Color | Black | | Customer Reviews | 4.4 4.4 out of 5 stars (286) | | Item Dimensions L x W | 10.8L x 10.8W centimeters | | Item Thickness | 10.8 Centimeters | | Manufacturer | ESI | | Manufacturer Part Number | RB6TG4R | | Material Type | Rubber | | Model Number | RB6TG4R | | Recommended Uses For Product | Vehicle Tailgate | | UPC | 855433005371 | | Unit Count | 6 Count | ## Product Details - **Brand:** ESI - **Colour:** Black - **Item thickness:** 10.8 Centimeters - **Material:** Rubber - **Product dimensions:** 10.8L x 10.8W centimeters ## Images ![ROK Block 4.25 inch Tailgate Gap Cover and Ultimate Tailgate Seal with Taper Seal 6ft for Sidewalls - Image 1](https://m.media-amazon.com/images/I/81F0-rUSy+L.jpg) ## Questions & Answers **Q: How long is the 4.25 tape?** A: I do not know how long it is; however, I did my F-150 tailgate and have about 14 inches left over. FYI, my truck has a sprayed in liner and this sticks to that work no separation. **Q: Is this roc block 4" or 7" in width?** A: My truck's in the garage, and I can't open the tailgate with the overhead door closed. What I can see of the Roc Block is appx. 2" along wide the top of the bed (can't see the portion along the tailgate). Must assume that the product I purchased is appx. 4" wide. **Q: does this kit come with the Adhesion promoter** A: It comes with alcohol swabs to clean both sides of the adhesion area. I put mine on almost two years ago and it is still adhering well following heavy use throughout this time. I am very pleased with it. **Q: Do I need standard 4" or XL for a 2020 f150?** A: The 4.25" width ROK BLOCK is best for all Ford trucks. Use 7" width ROK BLOCLK XL for 2021 and newer Ford trucks with a hinge retainer bracket, Ford Ranger and Ford Maverick (search ASIN: B076NFYH2R) ## Frequently Bought Together - ESI ROK Block 4.25 inch Width Tailgate Gap Cover and Ultimate Tailgate Seal with Taper Seal 6ft for Sidewalls - XFasten Butyl Tape Black, 1/2 in x 30 ft x 1/8 in – Easy-to-Work-with Automotive Butyl Sealant Tape, Mess-Free Rubber Caulk for RV, EPDM Putty for Window, Headlight, Roof, Windshield, and Car Doors - ESI Ultimate Tailgate Seal with Taper Seal 10ft for use with Truck Caps and Tonneau Covers --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/278879239-rok-block-4-25-inch-tailgate-gap-cover-and-ultimate](https://www.desertcart.co.za/products/278879239-rok-block-4-25-inch-tailgate-gap-cover-and-ultimate) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-06-22*