--- product_id: 8392815 title: "ESI Front Rail Seal 6 FT Made in USA, EPDM Rubber for Truck Caps, Fills a Height Gap from .251\" to .487\"" brand: "esi" price: "R1432" currency: ZAR in_stock: true category: "Esi" url: https://www.desertcart.co.za/products/8392815-esi-front-rail-seal-6-ft-made-in-usa-epdm store_origin: ZA region: South Africa --- # Fits front rail gaps .251-.487 inches Durable EPDM rubber, preferred by pros Proudly made in USA ESI Front Rail Seal 6 FT Made in USA, EPDM Rubber for Truck Caps, Fills a Height Gap from .251" to .487" **Brand:** esi **Price:** R1432 **Availability:** ✅ In Stock ## Summary > 🛻 Seal the deal with ESI – where precision meets durability! ## Quick Answers - **What is this?** ESI Front Rail Seal 6 FT Made in USA, EPDM Rubber for Truck Caps, Fills a Height Gap from .251" to .487" by esi - **How much does it cost?** R1432 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/8392815-esi-front-rail-seal-6-ft-made-in-usa-epdm) ## 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 - • **No Hassle Reuse:** Designed to stay intact and reusable every time you remove or reinstall your truck cap—save time and money. - • **Trusted by Professionals:** An original ESI design favored by expert installers for reliable, long-lasting sealing performance. - • **Built to Last with EPDM Rubber:** Crafted from high-quality EPDM rubber for superior durability and weather resistance over PVC or foam alternatives. - • **Precision Fit for Perfect Seal:** Engineered to fill front rail gaps from .251 to .487 inches, ensuring a snug, professional-grade fit. - • **Made in the USA with Quality Assurance:** Manufactured domestically with strict quality standards, supporting American craftsmanship and reliability. ## Overview The ESI Front Rail Seal 6ft EPDM Rubber is a vehicle-specific, high-quality rubber seal designed to fill front rail gaps between .251 and .487 inches when mounting truck caps. Made in the USA, this durable EPDM rubber seal is preferred by professional installers over PVC or foam alternatives. It offers a reusable, long-lasting solution that prevents dust and water intrusion, ensuring your truck cap fits securely and performs flawlessly. ## Description To determine if you need a Front Rail Seal measure the difference in height from the truck's side bed rails (including, if any, bed rail caps) to the truck's front bed rail. For the cap's side base rails (when using a Front Rail Seal) install one of ESI's high quality 20ft truck cap seals (see choices below). To seal the cap's front and side base rails (not using a Front Rail Seal) install one of the following 20ft or 23ft length truck cap seals: 1 1/2" wide Super Cap Seal 23ft (ASIN: B00C7VU9BA) or Super Cap Seal 20ft (ASIN: B00NCC0SY6) fills all bed rail gaps, use on truck caps that weigh 200 lbs or less. 2" wide Premium Cap Seal XL 23ft (ASIN: B00IPQR63A) or Premium Cap Seal XL 20ft (ASIN: B00NCCX6C2) fills small to medium bed rail gaps, use on truck caps that weigh 200 lbs or less. 2 1/8" wide Super Cap Seal XL 23ft (ASIN: B00BNGBXOC) or Super Cap Seal XL 20ft (ASIN: B00NCCNUJQ) for trucks with extra wide bed rails, fills all bed rail gaps and for caps over 200 lbs. 1 1/2" wide Ultra Cap Seal 23ft (ASIN: B00MPMBIZW) or Ultra Cap Seal 20ft (ASIN: B00NCCDXJ8) fills all bed rail gaps, for caps over 200 lbs. IMPORTANT: To completely seal out dust and water that enter in through the tailgate gap and sidewalls, install a patented Ultimate Tailgate Seal with Taper Seal (ASIN: B00IPQWXZQ). MADE IN USA ## Features - Fills the front rail gap, when mounting a truck cap that has a height gap from .251 to .487. - If height of front rail gap is .250 or less, just install one ESI high quality EPDM rubber truck cap seals (see Product Description) - If height of front rail gap is from .488 to 1" install Front Rail Seal XL (ASIN: B00IUY069S) - An ESI original design Front Rail Seal is preferred by professional installers over PVC/foam seals - No need to replace this seal every time your cap is removed. MADE IN USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C0WVV72 | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #107,847 in Automotive ( See Top 100 in Automotive ) #315 in Automotive Weather Stripping | | Brand Name | ESI | | Color | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (620) | | Exterior Finish | Natural Rubber | | Fit Type | Vehicle Specific Fit | | Manufacturer | Extruded Solutions | | Manufacturer Part Number | FRS-6R | | Manufacturer Warranty Description | WARRANTY: Extruded Solutions, Inc. | | Material Type | Rubber | | Model Number | FRS-6R | | Number of Packs | 1 | | Surface Recommendation | Side Body | | UPC | 855433005029 | | Unit Count | 1 Count | ## Product Details - **Brand:** ESI - **Color:** Black - **Exterior Finish:** Natural Rubber - **Fit Type:** Vehicle Specific Fit - **Material:** Rubber ## Images ![ESI Front Rail Seal 6 FT Made in USA, EPDM Rubber for Truck Caps, Fills a Height Gap from .251" to .487" - Image 1](https://m.media-amazon.com/images/I/61R4M4i26wL.jpg) ## Frequently Bought Together - ESI Front Rail Seal 6ft EPDM Rubber - ESI Super Cap Seal XL 20 FT (2 1/8" Width x 1/2" Height x 20' Length) EPDM Rubber for Caps Over 200 lbs - 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/8392815-esi-front-rail-seal-6-ft-made-in-usa-epdm](https://www.desertcart.co.za/products/8392815-esi-front-rail-seal-6-ft-made-in-usa-epdm) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-05*