--- product_id: 220199238 title: "Kuject 50PCS Waterproof Heat Shrink Butt Connector Self-Solder Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint" brand: "kuject" price: "R407" currency: ZAR in_stock: true reviews_count: 13 category: "Kuject" url: https://www.desertcart.co.za/products/220199238-kuject-50pcs-waterproof-heat-shrink-butt-connector-self-solder-insulated store_origin: ZA region: South Africa --- # Dual hot-melt adhesive rings for waterproof seal Solderless & crimpless heat-activated join IATF16949:2016 certified automotive-grade quality Kuject 50PCS Waterproof Heat Shrink Butt Connector Self-Solder Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint **Brand:** kuject **Price:** R407 **Availability:** ✅ In Stock ## Summary > ⚡ Connect Fast, Seal Tight, Last Long — The Ultimate Wire Splice Upgrade! ## Quick Answers - **What is this?** Kuject 50PCS Waterproof Heat Shrink Butt Connector Self-Solder Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint by kuject - **How much does it cost?** R407 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/220199238-kuject-50pcs-waterproof-heat-shrink-butt-connector-self-solder-insulated) ## Best For - kuject enthusiasts ## Why This Product - Trusted kuject brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built for Tight Spots:** Flexible connectors bend easily to fit confined spaces without compromising connection integrity. - • **Certified Reliability:** Meets rigorous IATF16949:2016 automotive standards for safety and durability you can trust. - • **Speed Meets Precision:** Complete secure wire joints in seconds with just a heat gun—no soldering or crimping needed. - • **Universal Compatibility:** Fits 14-16 gauge wires and 1/2" studs, ideal for automotive, marine, and industrial applications. - • **Marine-Grade Waterproofing:** Dual adhesive rings create an unbeatable moisture barrier, perfect for boats and outdoor use. ## Overview Kuject 50PCS Waterproof Heat Shrink Butt Connectors deliver a fast, reliable, and waterproof wire splicing solution. Featuring a solderless, crimpless design activated by heat, these connectors include dual hot-melt adhesive rings for superior moisture resistance. Certified to IATF16949:2016 automotive standards, they fit 14-16 gauge wires and 1/2" studs, making them perfect for marine, automotive, and industrial electrical repairs. ## Description Ring terminals are designed to mate,connect, or terminate a single wire connection. The ring structure allows the terminal to be more securely and durable connected to a screw or stud.Widely used for auto, cars, stereo audio , trucks, boats, underground cables and so on.Color coded pieces with text print helps identify needed connection quickly.This package includes 50 PCS ring terminals for 1/2" screw. These electrical connectors will fit wires from 16 to 14 gauge. Review: Quick and Easy to Use - Excellent product. Very easy to join broken car wires. The solder and tube melts quickly using a heat gun and provides a secure join. Very quick to make a join. It would be better if there were more sizes of joint for thin wire.The cables I was fixing were in between 2 sizes of joint, but the larger joint melted enough to provide a secure fix. Review: Product Review: Kuject 50PCS Solder Seal Wire Connectors - The Kuject 50PCS Solder Seal Wire Connectors have been a game-changer for my electrical projects. These waterproof heat shrink butt connectors are incredibly easy to use and provide a secure and reliable connection for marine, automotive, boat, and truck wire joints. The self-solder feature is a game-changer, eliminating the need for an extra soldering tool. All I need to do is insert the wires, apply heat, and watch the magic happen. The solder sleeve ensures a solid bond, leaving no room for error. I appreciate the extra peace of mind these connectors offer with their waterproof properties, making them ideal for use in various weather conditions and environments. The 50PCS assortment provides a good range of sizes, giving me options for different wire gauges and joint sizes. Overall, the Kuject Solder Seal Wire Connectors have made my electrical work much more efficient and reliable. I highly recommend these connectors to anyone looking for a hassle-free and effective solution for wire splicing and connections. ## Features - Time Saver - solderless, crimpless, all you need is just a heat gun to finish the joint, much faster and easier than the old way. - Fit for Confined and Narrow Spaces - can be bent after connection and no need to crimp or solder in the confined area, just control the temperature via a heat gun. - Better Waterproof and Seal Performance - there is two hot melt waterproof adhesive rings in each butt connector, which help it hold up better to moisture. - High Temperature Resistance in A Short Time: use exclusive material in the butt connectors to avoid shrink tubing melting before solder ring. - IATF16949:2016 Listed: The Kuject solder seal connectors meet the newest standard of International Automotive Task Force, which is the most standardized and safest way for you to repair or modify your car. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BJX51VT | | Best Sellers Rank | 96 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1 in Butt Terminals | | Brand | Kuject | | Colour | Transparent | | Connector Type | Butt Splice | | Connector type | Butt Splice | | Contact Material | Copper | | Contact material | Copper | | Country Of Origin | China | | Customer Reviews | 4.6 out of 5 stars 45,064 Reviews | | Gauge | 14 | | Insulation Material Type | Polyolefin" or "Polyvinyl Chloride | | Insulation material | Polyolefin" or "Polyvinyl Chloride | | Item Dimensions L x W x H | 13L x 9W x 1.8H centimetres | | Item Weight | 0.04 Pounds | | Manufacturer | Kuject | | Manufacturer Part Number | WT050 | | Material | Copper | | Maximum Voltage | 120 Volts (AC) | | Model Number | WT050 | | Number of Items | 1 | | Specification Met | CE, UL, VDE | | Stud Size | 1/2 inch | | Temperature Rating | 80-111°C | | Terminal | Ring Terminal | | Unit Count | 1.0 count | ## Product Details - **Colour:** Transparent - **Connector type:** Butt Splice - **Contact material:** Copper - **Insulation material:** Polyolefin" or "Polyvinyl Chloride - **Terminal:** Ring Terminal ## Images ![Kuject 50PCS Waterproof Heat Shrink Butt Connector Self-Solder Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint - Image 1](https://m.media-amazon.com/images/I/71Hri4ZFZgL.jpg) ![Kuject 50PCS Waterproof Heat Shrink Butt Connector Self-Solder Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint - Image 2](https://m.media-amazon.com/images/I/71V3lhCSUsL.jpg) ![Kuject 50PCS Waterproof Heat Shrink Butt Connector Self-Solder Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint - Image 3](https://m.media-amazon.com/images/I/71ogi4+yaDL.jpg) ![Kuject 50PCS Waterproof Heat Shrink Butt Connector Self-Solder Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint - Image 4](https://m.media-amazon.com/images/I/71w1XdheDFL.jpg) ![Kuject 50PCS Waterproof Heat Shrink Butt Connector Self-Solder Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint - Image 5](https://m.media-amazon.com/images/I/71G8JpQtLPL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can I use hair dryer instead heat gun?** A: The heat gun takes awhile to melt it so wouldn’t use a hairdryer I’m guessing if it did work you would be there for ages. **Q: Hi. Does it need to be used with other tools?** A: Yes, you need to purchase preferably a heat gun. The heat gun is used to mould the connector around the 2 broken wires securely so that they connect as 1. **Q: What’s it up rating?** A: I find these very useful indeed. They give a prefect connection, which is waterproof. (Although I always use heat shrink tubing over the connections to make certain they are totally sturdy and waterproof.) **Q: is this suitable to reconnect a cut off hedge cutter cable (240v 5a). Also I just have a wind proof lighter is that ok and will the flame not burn it?** A: Good for fixing wires together. I just use enough hat air till the solder melts and plastic tightens. Gentle heat. I use a heat gun that straps paint. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quick and Easy to Use *by C***N on 11 April 2026* Excellent product. Very easy to join broken car wires. The solder and tube melts quickly using a heat gun and provides a secure join. Very quick to make a join. It would be better if there were more sizes of joint for thin wire.The cables I was fixing were in between 2 sizes of joint, but the larger joint melted enough to provide a secure fix. ### ⭐⭐⭐⭐⭐ Product Review: Kuject 50PCS Solder Seal Wire Connectors *by A***R on 1 August 2023* The Kuject 50PCS Solder Seal Wire Connectors have been a game-changer for my electrical projects. These waterproof heat shrink butt connectors are incredibly easy to use and provide a secure and reliable connection for marine, automotive, boat, and truck wire joints. The self-solder feature is a game-changer, eliminating the need for an extra soldering tool. All I need to do is insert the wires, apply heat, and watch the magic happen. The solder sleeve ensures a solid bond, leaving no room for error. I appreciate the extra peace of mind these connectors offer with their waterproof properties, making them ideal for use in various weather conditions and environments. The 50PCS assortment provides a good range of sizes, giving me options for different wire gauges and joint sizes. Overall, the Kuject Solder Seal Wire Connectors have made my electrical work much more efficient and reliable. I highly recommend these connectors to anyone looking for a hassle-free and effective solution for wire splicing and connections. ### ⭐⭐⭐⭐ I've done what i needed, don't expect to be like iron soldered joint *by D***R on 16 July 2026* Seems to be ok,but doesn't look like you would have soldered it. I've tried to heat it from 250 gradually increasing to 450 and the center still didn't melt like iron soldering but it most probably it's not meant to. I've noticed that it shrinks and hold the wires together, strong enough for the 0.25 wire i was using plus the glue on the ends helps to keep all together. ## Frequently Bought Together - Kuject 50PCS Solder Seal Wire Connectors, Waterproof Heat Shrink Butt Connector Solder Sleeve Self-Solder Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint - ASHINER Heat Shrink Tubing Kit - 580Pcs EVA Material in 6 Colors and 11 Sizes - Ideal for Electrical Insulation, Repairs, and Wire Connectors with User-Friendly Design and Storage Case - SEEKONE Mini Heat Gun 2 Temperature 260℃/450℃, 350W Handheld Hot Air Gun Tool 1.5S Fast Heating with Overload Protection, Non-Slip Rubber Body, Nozzle for Craft Embossing, Shrink Wrapping --- ## 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/220199238-kuject-50pcs-waterproof-heat-shrink-butt-connector-self-solder-insulated](https://www.desertcart.co.za/products/220199238-kuject-50pcs-waterproof-heat-shrink-butt-connector-self-solder-insulated) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-08-23*