--- product_id: 92654600 title: "3rd Third Brake Light Seal Gasket Compatible with Chevy Silverado GMC Sierra 1500 2500 3500 2014 2015 2016 2017 2018 Rear Cab High Mount Stop Lamp" brand: "moforkit" price: "Β£25.00" currency: GBP in_stock: true reviews_count: 13 category: "Moforkit" url: https://www.desertcart.co.uk/products/92654600-3rd-third-brake-light-seal-gasket-compatible-with-chevy-silverado store_origin: GB region: United Kingdom --- # Enhanced waterproof & dustproof seal Precision fit for 2014-2019 Silverado & Sierra 0.2 inch thick foam for superior protection 3rd Third Brake Light Seal Gasket Compatible with Chevy Silverado GMC Sierra 1500 2500 3500 2014 2015 2016 2017 2018 Rear Cab High Mount Stop Lamp **Brand:** moforkit **Price:** Β£25.00 **Availability:** βœ… In Stock ## Summary > πŸ’‘ Seal the deal with leak-proof confidence! ## Quick Answers - **What is this?** 3rd Third Brake Light Seal Gasket Compatible with Chevy Silverado GMC Sierra 1500 2500 3500 2014 2015 2016 2017 2018 Rear Cab High Mount Stop Lamp by moforkit - **How much does it cost?** Β£25.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/92654600-3rd-third-brake-light-seal-gasket-compatible-with-chevy-silverado) ## Best For - moforkit enthusiasts ## Why This Product - Trusted moforkit brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Hassle-Free Support:** 12-month warranty plus responsive customer service within 24 hours - β€’ **Perfect Fit Guarantee:** Engineered to fit Silverado & Sierra models 2014-2019 without trimming - β€’ **Ultimate Leak Defense:** Thicker EVA foam blocks water & dust better than factory seals - β€’ **Effortless Maintenance:** Single-sided adhesive leaves minimal residue for quick bulb changes - β€’ **Durability Meets Safety:** Flame & chemical resistant foam ensures long-lasting reliability ## Overview This 0.2-inch thick foam gasket is a premium replacement for the third brake light seal on Chevy Silverado and GMC Sierra models (2014-2019). Designed for superior waterproofing, dustproofing, and shock absorption, it ensures a perfect fit without modifications. Its single-sided adhesive allows easy removal during maintenance, minimizing residue and cleaning time. Backed by a 12-month warranty and responsive customer support, it’s the smart upgrade to protect your vehicle’s high mount stop lamp from leaks and damage. ## Description The gasket, specifically engineered for the third brake light, is thicker than the factory gasket, offering enhanced performance in waterproofing, dustproofing, and shock absorption. Featuring a single-sided adhesive design, it allows for easy removal during bulb replacement or light assembly maintenance without damaging the gasket. Package includes: 1 gasket with 1 manual Compatibility: 2014 2015 2016 2017 2018 Chevy Silverado 1500 or GMC Sierra 1500 2015 2016 2017 2018 2019 Chevy Silverado 2500HD 3500HD or GMC Sierra 2500HD 3500HD Specifics and Features: The thickened and reinforced EVA Foam offers superior waterproof, dustproof, and shockproof performance. Constructed with high-quality cushioning material, the product provides flame resistance, chemical resistance, and excellent durability for long-term reliable use. Its dimensions are precisely engineered to fit both factory and aftermarket third brake light, enabling easy installation without modifications or trimming. When replacing the bulb at a later stage, the gasket leaves minimal adhesive residue, significantly reducing cleaning time on the third brake light assembly. Tips: Stick new seal gasket with adhesive on the back of third brake light, pay attention to alignment. Ensure that the surfaces of both the vehicle body and the third brake light are clean prior to installation. Inspect the source of the leak; it is advisable to apply a clear sealant to the screw heads of the light, as water may be entering through these points. Warranty and Customer Service: 1. 12-Month Manufacturer Warranty since order purchase date. 2. If you have any questions before or after your purchase, please don't hesitate to reach out. Communication is the best way to resolve issues, and we'll get back to you within 24 hours. ## Features - Compatibility: 2014 2015 2016 2017 2018 Chevy Silverado 1500 or GMC Sierra 1500; 2015 2016 2017 2018 2019 Chevy Silverado 2500HD 3500HD or GMC Sierra 2500HD 3500HD - This product serves as a replacement and upgrade for the factory third brake light seal gasket. Constructed from thicker and more resilient foam material, it effectively prevents water ingress and offers enhanced durability compared to the previous version. It provides an ideal solution to the persistent issue of water leakage - 0.2 inch (5 mm) thick foam gasket will result in an approximate 1/8 inch gap between the housing edge and the vehicle body after installation. This design does not compromise the waterproof performance or the protection of internal components. Please ensure full understanding and acceptance of this specification prior to placing an order - Apply adhesive to the back of the third brake light and securely attach the new seal gasket, ensuring proper alignment during installation. When replacing the bulb at a later stage, the gasket leaves minimal adhesive residue, significantly reducing cleaning time on the third brake light assembly - Package includes: 1 gasket with 1 manual; 12-Month Manufacturer Warranty since order purchase date. If you have any questions before or after your purchase, please don't hesitate to reach out. Communication is the best way to resolve issues, and we'll get back to you within 24 hours ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07H3S4GHM | | Best Sellers Rank | #9,247 in Automotive ( See Top 100 in Automotive ) #11 in Automotive High Mount Stop Light Assemblies | | Brand | MOFORKIT | | Brand Name | MOFORKIT | | Customer Reviews | 4.5 out of 5 stars 3,002 Reviews | | Item Thickness | 0.2 Inches | | Manufacturer | MOFORKIT | | Material | Foam | | Material Type | Foam | | Model | 8542089712 | | Part Number | FBAMKMP24460 | | UPC | 709202139098 | ## Product Details - **Brand:** MOFORKIT - **Item Thickness:** 0.2 Inches - **Manufacturer:** MOFORKIT - **Material:** Foam - **UPC:** 709202139098 ## Images ![3rd Third Brake Light Seal Gasket Compatible with Chevy Silverado GMC Sierra 1500 2500 3500 2014 2015 2016 2017 2018 Rear Cab High Mount Stop Lamp - Image 1](https://m.media-amazon.com/images/I/41qvNahbZEL.jpg) ![3rd Third Brake Light Seal Gasket Compatible with Chevy Silverado GMC Sierra 1500 2500 3500 2014 2015 2016 2017 2018 Rear Cab High Mount Stop Lamp - Image 2](https://m.media-amazon.com/images/I/61BdelEle0L.jpg) ![3rd Third Brake Light Seal Gasket Compatible with Chevy Silverado GMC Sierra 1500 2500 3500 2014 2015 2016 2017 2018 Rear Cab High Mount Stop Lamp - Image 3](https://m.media-amazon.com/images/I/61D4mA3ZnaL.jpg) ![3rd Third Brake Light Seal Gasket Compatible with Chevy Silverado GMC Sierra 1500 2500 3500 2014 2015 2016 2017 2018 Rear Cab High Mount Stop Lamp - Image 4](https://m.media-amazon.com/images/I/61zISltdb+L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does the adhesive side apply to the lens or the cab ?** A: Both. An adhesive side will seal the light housing, and the other adhesive side will sela to the surface of the cab. **Q: Does this item fit the 2006 2500hd? it says so in the description but it said so for the 2003 1500hd as well and you said that this item does not** A: Fits a 1999 - 2006 Chevy Silverado or GMC Sierra 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 - Regular Cab 6-1/2' Bed - Regular Cab 8' Bed - Extended Cab 6-1/2' Bed - Crew Cab 5-1/2' Bed Fits ALL 1/2 Ton, 3/4 Ton, and 1 Ton. 1500, 2500, 2500HD, 3500, 3500 Dually Z-71, 4x4, 4x2, AWD SL, SLE, SLT, LS, LT, SS, Work Truck Quadrasteer Obviously, it doesn't matter what color your truck is either! Basically, this fits all 1999 - 2006 GMT800 Body Style **Q: Do I need to peel the old one off?** A: Yes, the old one has to be pulled off and the surface needs to be cleaned with rubbing alcohol before applying new seal. **Q: Hi, can you please make a custom gasket for my 00 Escalade high mount brake light? I can send dimensions and images. Thank you** A: Please give me third brake light's OEM link,thanks. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by S***O on February 24, 2026* ### ⭐⭐⭐⭐⭐ Review *by J***D on December 22, 2025* ### ⭐⭐⭐⭐⭐ Review *by J***P on April 12, 2026* ## Frequently Bought Together - MOFORKIT 3rd Third Brake Light Seal Gasket Compatible with Chevy Silverado GMC Sierra 1500 2500 3500 2014 2015 2016 2018 - Tresound LED Third Brake Cargo Light for 2014-2018 Chevy Chevrolet Silverado & GMC Sierra 1500 2500HD 3500HD Rear High Mount Stop Lamp Red Lens Chrome Housing - Permatex 80050 Clear RTV Silicone Adhesive Sealant, 3 oz --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/92654600-3rd-third-brake-light-seal-gasket-compatible-with-chevy-silverado](https://www.desertcart.co.uk/products/92654600-3rd-third-brake-light-seal-gasket-compatible-with-chevy-silverado) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-22*