---
product_id: 169033944
title: "Kuject 270PCS Solder Seal Wire Connectors, Self-Solder Heat Shrink Butt Connector Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Stereo Wire Joint"
brand: "kuject"
price: "$61.98"
currency: USD
in_stock: true
reviews_count: 13
category: "Kuject"
url: https://www.desertcart.us/products/169033944-kuject-270pcs-solder-seal-wire-connectors-self-solder-heat-shrink
store_origin: US
region: United States of America
---

# IP67 waterproof seal with dual hot-melt adhesive rings High-temp resistant tubing prevents premature melting Solderless & crimpless for ultra-fast connections Kuject 270PCS Solder Seal Wire Connectors, Self-Solder Heat Shrink Butt Connector Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Stereo Wire Joint

**Brand:** kuject
**Price:** $61.98
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal it. Heat it. Forget it. The ultimate wire connector for pros on the move.

## Quick Answers

- **What is this?** Kuject 270PCS Solder Seal Wire Connectors, Self-Solder Heat Shrink Butt Connector Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Stereo Wire Joint by kuject
- **How much does it cost?** $61.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/169033944-kuject-270pcs-solder-seal-wire-connectors-self-solder-heat-shrink)

## 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

- • **All-in-One Kit:** 270 assorted connectors in a compact case keep your projects organized and ready to roll.
- • **Built for Tight Spots:** Flexible connectors bend post-connection, perfect for cramped automotive or marine spaces.
- • **Speed Meets Precision:** Cut your wiring time in half with solderless, crimpless tech—just heat and go!
- • **Waterproof Confidence:** Dual hot-melt adhesive rings create an IP67-rated seal that locks out moisture and corrosion.
- • **Automotive-Grade Reliability:** IATF16949:2016 certified for professional-grade repairs and modifications.

## Overview

Kuject’s 270PCS Solder Seal Wire Connectors combine advanced heat-shrink technology with built-in solder rings and dual waterproof adhesive seals, delivering fast, reliable, and corrosion-resistant electrical connections. Certified to automotive standards and designed for confined spaces, these connectors simplify wiring tasks across marine, automotive, and industrial applications.

## Description

Product description IP67 Waterproof After being heated, they shrink and water will not be able to go inside, preventing any short circuit issues. Widely used on boat, vehicle, motorcycle, home, factory or marine. High Success Rate Our wire connectors are upgraded to use exclusive material in the butt connectors to avoid shrink tubing melting before solder ring. The success rate of connecting wire has been greatly improved. Structure Features Polyolefin Tubing Outside and Hot melt Adhesive Inside make connection strong and waterproof. Note: We suggest the temperature that the hot air gun should set about:400-600℃ (752-1112°F) More Products 270pcs Wire Connectors Heat Shrink Connectors 120pcs Wire Connectors 150pcs Lever Connectors Heat Gun & Wire Connector

Review: Quick, Clean, and Solid Connections Every Time” - Picked these up for wiring on my builds and they work great. Super easy to use—just strip, insert, and heat. The solder flows nicely and the heat shrink seals everything up tight, giving a clean, solid connection without needing separate tools. I’ve used them on automotive wiring and they hold up well, especially with the waterproof seal. Way quicker than traditional soldering and more reliable than basic crimp connectors when you want something sealed and durable. Nice assortment of sizes and the case keeps everything organized. I do a lot of my own wiring and tuning work, and these have definitely made things faster and cleaner.
Review: These Connectors Make Wiring a Breeze — Reliable and Easy! - I picked up the Kuject Solder Seal Heat Shrink Butt Connectors for some wiring projects, and honestly, they’ve made my life way easier. If you’ve ever struggled with messy connections or worrying about durability, these will be your new best friend. The best part? The solder ring inside melts perfectly when heated, creating a strong, clean connection without needing extra tools or messy soldering. Plus, the heat shrink sleeve seals everything tight and waterproof, which gives me confidence that my connections won’t fail even in tough conditions. I tested these on my car’s wiring and some home electronics, and every joint has held up great — no corrosion, no loosening, just solid connections. They’re also super easy to use, even if you’re not a pro. With 200 pieces, I have plenty to keep me stocked for future projects. Overall, I’m really happy with the quality and performance of these connectors — they definitely take the headache out of wiring jobs.

## 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
- 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 Proof 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 way for you to repair or modify your car

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Z8SD8PB |
| Best Sellers Rank | #292 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Butt Terminals |
| Brand Name | Kuject |
| Color | RED BLUE YELLOW WHITE |
| Connector Type | Butt Splice |
| Contact Material | Tin |
| Customer Reviews | 4.5 out of 5 stars 45,181 Reviews |
| Gauge | 26.0 |
| Insulation Material | Polyethylene |
| Insulation Material Type | Polyethylene |
| Item Dimensions L x W x H | 9.96"L x 7.09"W x 0.63"H |
| Item Weight | 111 Grams |
| Manufacturer | Kuject |
| Material | Polyethylene, Tin |
| Material Type | Polyethylene, Tin |
| Maximum Voltage | 12 Volts (DC) |
| Model | WT270 |
| Number of Items | 270 |
| Part Number | WT270 |
| Stud Size | 10,12,14,16,18,20,22,24,26 gauge |
| Temperature Rating | -67°F to 257°F |
| Terminal | Butt Terminal |
| Unit Count | 270 Count |

## Product Details

- **Color:** RED BLUE YELLOW WHITE
- **Connector Type:** Butt Splice
- **Contact Material:** Tin
- **Insulation Material:** Polyethylene
- **Terminal:** Butt Terminal

## Images

![Kuject 270PCS Solder Seal Wire Connectors, Self-Solder Heat Shrink Butt Connector Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Stereo Wire Joint - Image 1](https://m.media-amazon.com/images/I/81yPvxqJRtL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quick, Clean, and Solid Connections Every Time”
*by W***S on April 25, 2026*

Picked these up for wiring on my builds and they work great. Super easy to use—just strip, insert, and heat. The solder flows nicely and the heat shrink seals everything up tight, giving a clean, solid connection without needing separate tools. I’ve used them on automotive wiring and they hold up well, especially with the waterproof seal. Way quicker than traditional soldering and more reliable than basic crimp connectors when you want something sealed and durable. Nice assortment of sizes and the case keeps everything organized. I do a lot of my own wiring and tuning work, and these have definitely made things faster and cleaner.

### ⭐⭐⭐⭐⭐ These Connectors Make Wiring a Breeze — Reliable and Easy!
*by B***. on June 25, 2025*

I picked up the Kuject Solder Seal Heat Shrink Butt Connectors for some wiring projects, and honestly, they’ve made my life way easier. If you’ve ever struggled with messy connections or worrying about durability, these will be your new best friend. The best part? The solder ring inside melts perfectly when heated, creating a strong, clean connection without needing extra tools or messy soldering. Plus, the heat shrink sleeve seals everything tight and waterproof, which gives me confidence that my connections won’t fail even in tough conditions. I tested these on my car’s wiring and some home electronics, and every joint has held up great — no corrosion, no loosening, just solid connections. They’re also super easy to use, even if you’re not a pro. With 200 pieces, I have plenty to keep me stocked for future projects. Overall, I’m really happy with the quality and performance of these connectors — they definitely take the headache out of wiring jobs.

### ⭐⭐⭐⭐ Great for putting 2 wires together.
*by J***T on January 15, 2026*

Great for putting wires back together in my truck. Easy to use and holds great if you install them correctly. Nice storage included and the quality is good.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-05*