Single Wire Seals

Single wire seals are a very common seal for automotive connectors and are available in two types: single wire seals and cavity plugs.

People often ask,What is the difference between Single wire seals and cavity plug?

Single Wire Seals

Single wire seals allow cables to pass through and surround the cable, providing waterproof and dustproof protection at critical interfaces. Cavity plugs block the cavity, preventing water, dust, and oil from entering the automotive connector.

As a Chinese automotive connector seals factory, Guoming Rubber can supply Single Wire Seals in large quantities. We have a large number of production equipment that can deliver millions of Single wire seals within 7-10 days.

Before you place an order, our professional team of engineers will discuss the product's application scenarios, operating conditions, and performance specifications with you to fully understand your needs and recommend suitable materials.

During the production process, we will report the production progress to you in real time.

Single Wire Seals

You don't need to worry about delivery issues when cooperating with us. Not only do we have strong delivery capabilities, but we also adopt a rolling inventory model to stock according to market demand.You can rest assured to buy Single Wire Seals from our factory and we will offer you the best after-sale service and timely delivery.

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Waterproof Single Wire Seal Blue

Waterproof Single Wire Seal Blue GM681372 is used for sealing wiring holes: the wire goes through the middle, and multiple circular sealing ribs on the product body press against the connector holes to keep out water and dust. Guoming Rubber & Plastic has been specializing in rubber and plastic seals for nearly twenty years. We can produce both through holes and blind plugs, and we also support custom designs according to drawings. If you're unsure about the working conditions, sending a sample for testing is the most straightforward way.

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7165-0797 Single Wire Seal

7165-0797 single Wire Seal We're Guoming Rubber & Plastic, and connector seals are pretty much all we do — close to 20 years now. The gray part in the photo is molded in one piece from automotivegrade silicone. It carries three sealing ribs, and each rib presses against the connector cavity, so even if one point loses contact, the other two still keep water, dust and oil out. Production runs under IATF 16949, daily output is around 5 million pieces, and we can make any custom spec off your drawing. You're welcome to come check the factory in person.

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Blcak Connector Seal

The HQ-235 Black Connector Seal is a double-flange rubber grommet made for routing wires through panels — doors, dashboards, engine bays and equipment housings. The two flanges grip the panel from both sides while the center opening lets the harness pass through cleanly, protected from sharp edges, vibration and moisture.

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Blue Rubber Connector Seal

The Blue Rubber Connector Seal 967056-1 is a blue silicone blind plug from Zhejiang Guoming Rubber. It seals off the unused cavities in a connector housing — the three bellows ribs grip the cavity wall firmly, keeping moisture, dust and other contaminants away from the terminals. And the support does not end at delivery: if you run into any problem during use, our team responds quickly and helps you sort it out.

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Gray Single Wire Seal

Zhejiang Guoming Rubber Technology Co., Ltd. has spent years deep in the rubber sealing field, and we've learned one thing the hard way: automotive connector failures aren't caused by big problems — a single grain of dust, a drop of moisture is enough to interrupt the signal. That's exactly why we refined the 7165-1648 Gray Single Wire Seal. It may be small, but it's the last line of defense for wiring harness waterproofing and dust protection. From the engine bay to chassis routing, it works where you can't see it, making sure every signal transmits clean through. It's the ideal partner for automotive wiring harnesses and connectors — and many customers have given us great feedback after putting it to use.

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Brown Silicone Seal Plug

Zhejiang Guoming Rubber Technology Co., Ltd. has spent years in the connector sealing space, and one thing hasn't changed: unused cavities on a connector housing are the easiest entry points for water — and the easiest to overlook. You can design the best waterproof connector in the world, but one unsealed cavity, and the whole harness loses its IP rating. The 7161-9787 Brown Silicone Seal Plug does exactly one job — plugs the holes that don't need a wire, and gives water nowhere to go.

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