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AliExpress Waterproof Solder Seal Wire Butt Connectors (50-Pack)
AliExpress Waterproof Solder Seal Wire Butt Connectors (50-Pack), view 2AliExpress Waterproof Solder Seal Wire Butt Connectors (50-Pack), view 3AliExpress Waterproof Solder Seal Wire Butt Connectors (50-Pack), view 4AliExpress Waterproof Solder Seal Wire Butt Connectors (50-Pack), view 5AliExpress Waterproof Solder Seal Wire Butt Connectors (50-Pack), view 6
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Waterproof Solder Seal Wire Butt Connectors (50-Pack)

$1.42$2.84Save 50%

In stock at aliexpress.com

A set of solder seal wire butt connectors, available in 10, 50 or 100 pieces, that join two wires with a heat shrink sleeve and a solder ring inside. You heat the sleeve and it solders and seals the joint. AliExpress seller data shows over 6,200 orders and 98% positive feedback for the listing.

Shop now at AliExpress →

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Price from AliExpress at our last check (refreshed weekly). The final price, shipping and any import charges show at AliExpress checkout. We may earn a commission if you buy.

Highlights

  • Solder-and-shrink butt connectors in 10, 50 or 100 pieces
  • Waterproof, insulated terminal design per the title
  • Heat shrink tube with built-in solder ring
  • Useful for automotive, marine and hobby wiring

Best for

DIYers wiring car lights, trailers or boats who want sealed joints without a soldering iron.

Things to consider

  • Wire gauge range and color coding are not stated, so check the option names for the size you need
  • You need a heat gun to melt the solder ring evenly; a lighter can scorch the sleeve
  • Typical US delivery is roughly 1 to 3 weeks, import charges may apply, and refunds go through AliExpress Buyer Protection

Key specs

Price$1.42
Pack options10 / 50 / 100 pieces
TypeSolder seal butt connector, heat shrink
ClaimedWaterproof, insulated
AliExpress orders6,210 (seller data)
Positive feedback98% (seller data)

Our take

A cheap and useful wiring supply; match the gauge before ordering.

Waterproof Solder Seal Wire Butt Connectors (50-Pack) at a glance

BrandAliExpress
Price$1.42 (was $2.84)
TypeElectronic Accessories & Supplies
AvailabilityIn stock at aliexpress.com
ReturnsEligible items can be returned within 90 days of payment, with the first return on each…

Price check

At $1.42, the Waterproof Solder Seal Wire Butt Connectors is one of AliExpress's more affordable items, whose 52,612 listed products run $1 to $1,229.

It's currently 50% below its listed price of $2.84. Sale prices can end without notice, so check the live price before you order.

Similar items from other brands we track run A$19.99 to A$129.95.

Buying from AliExpress

AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay.

Shipping
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Returns
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
Warranty
AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Payment
US shoppers can pay by Visa, Mastercard, American Express or Discover, PayPal, Apple Pay and Google Pay. Instalment options such as Klarna and PayPal Pay Later appear on some orders, and availability varies.
International
AliExpress sells to shoppers worldwide. For US orders, import duties on low-value parcels have applied since the duty-free exemption ended in 2025, and state sales tax is added at checkout.

Read our full AliExpress review and shop all products →

Frequently asked questions

How do solder seal connectors work?
Strip both wires, slide them in, and heat the sleeve until the solder melts and the tube shrinks around the joint.
What wire gauge fits?
Not stated in the title. Pick the correct size option and test on scrap wire.
How long does shipping take to the US?
Plan on roughly 1 to 3 weeks with standard shipping. The delivery estimate on the listing for your address is the best guide.
Are they worth it?
At around $1.42 for a pack, they are a cheap way to get weatherproof splices.
Is the Waterproof Solder Seal Wire Butt Connectors on sale?
Yes. AliExpress lists it at $1.42, down from $2.84 (50% off). Sale prices change, so confirm the live price on aliexpress.com.
Is there a discount on the Waterproof Solder Seal Wire Butt Connectors?
AliExpress publishes these ways to save: Coins in the app. AliExpress sets the terms, which can change; our AliExpress coupons page has the details.
What is AliExpress's return policy?
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
How long does AliExpress take to ship?
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Does the Waterproof Solder Seal Wire Butt Connectors come with a warranty?
AliExpress's published warranty terms: AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Where can I buy the Waterproof Solder Seal Wire Butt Connectors?
The Waterproof Solder Seal Wire Butt Connectors is sold directly by AliExpress on aliexpress.com. The Shop now button on this page goes straight to the product there.
Is the Waterproof Solder Seal Wire Butt Connectors in stock?
Yes. AliExpress lists it as in stock on aliexpress.com as of our latest check. Stock and prices refresh throughout the day.
Is AliExpress a legit store?
AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay. Our full AliExpress review covers shipping, returns and what to check before ordering.

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