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Authorized Suzhou distributor · Xinya Electronic Co., Ltd. 📞 +86 15862457677 📫 [email protected]
Xinya AWM Wire Authorized Suzhou distributor · Xinya Electronic Co., Ltd.

Marine Wiring Harness | Boat & RV Cable Assembly

Marine, RV and off-road harnesses built with tinned copper, heat-shrink sealed terminals and UV-resistant jacket for damp, vibrating environments.

Marine and RV sealed wiring harness with tinned copper
Made to drawing. No prices are published and there is no cart. Send the drawing, a sample or a list of from-to points and we will quote the wire, connector, crimp and test method in writing.

Marine, RV & Off-Road Harness: what we build

A boat is a persistent vibration problem wrapped in salt water. Bare copper in that environment corrodes at every strand once the jacket is nicked, and a crimp that was fine in the workshop becomes a high-resistance joint after a season of movement. Tinned conductor and sealed terminations are the two decisions that change the outcome.

Every lead in the looms we build for these applications uses tinned copper as the default, and every termination gets a heat-shrink sleeve with an adhesive liner that seals the barrel as well as insulating it. Where the joint has to resist pull-out under vibration, a sealed connector system is used rather than a splice.

The catalogue wire lines that suit this duty are the 105 °C PVC styles such as UL1015 and UL1028, and the UL 4703 photovoltaic wire where a UV-stabilised jacket is wanted for a run across a deck or a roof.

How we build it

  • Tinned copper conductor as the standard, not an upgrade
  • Heat-shrink sealed ring, butt and butt-splice terminations with adhesive liner
  • Sealed connector systems where a splice would be the weak point
  • UV-stabilised jacket on exposed deck, roof and rack runs
  • Chafe guard and conduit at every through-bulkhead or frame crossing
  • Separate bilge, helm and house looms wired and tested independently

Wire we build this harness on

Every conductor is Xinya wire from this site's own catalogue, so the style inside the harness can be traced to a published data sheet. These are the lines most often specified for this application:

If your drawing names a style that is not listed here, ask — the catalogue published on this site is a subset of what the factory runs, and we can quote against a style number as easily as against a description.

How to get a quotation

Send the drawing, the sample, a photograph with a scale in shot, or a table of from-to points. Our reply names the wire style, the connector series, the crimp specification, the sleeving and the test method, so your engineers can approve the part rather than interpret a description. Nothing on this site carries a price: every harness is quoted against the specification you provide.

Request a harness quotation Not sure which wire? Use the wire selector

Questions buyers ask about marine, rv & off-road harness

Why tinned copper rather than bare copper?

Because the failure mode is corrosion at the strand, not at the connection. Once a jacket is nicked and water reaches bare copper, the strand corrodes and the conductor becomes a resistor. Tinning slows that to the point where a properly built loom is not the limiting item.

Which wire do you use for a deck run?

UL 4703 photovoltaic wire is a good fit because its jacket is UV-stabilised and the construction is designed for permanent outdoor exposure. It is listed in this catalogue under the UL PV wire series with its file reference.

Do you seal the crimps?

Yes — heat-shrink sleeves with an adhesive liner are the default on ring, fork, butt and splice terminations, so the barrel is sealed as well as covered.

Can you build looms to a boat builder’s drawing?

Yes, and usually the drawing separates the systems — bilge, helm, house, navigation. We build and test each as its own loom so a fault can be isolated without unwrapping the whole vessel.

Is the harness suitable for an RV or an off-road vehicle?

The same construction works, and the driver is vibration and water ingress rather than salt. Tinned conductor and sealed terminations remain the right defaults.

Other Automotive & Transport harnesses

Request a quotation for this harness

Tell us the style, AWG, colour and quantity — or attach nothing and just describe the requirement. We reply to every enquiry.

We use your details only to answer this enquiry. No prices are published on this site.

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Questions & answers

Frequently asked questions

Certifications, lead time, payment, shipping and MOQ — the points buyers ask about most often. If something is still unclear, send us your requirement and we will answer directly. See the full FAQ →

01 Are you a manufacturer or a trading company?

We are a wire harness manufacturer — cutting, stripping, crimping, sealing and testing are all carried out in-house at our Suzhou plant. We are also an authorised distributor of Xinya brand electronic wire, so you can source both the wire and the finished harness from one supplier.

02 What certifications do your electronic wires have?

Our electronic wires carry UL, VDE, PSE and CE approvals, together with RoHS and REACH compliance for the European market; TUV approvals are available for PV and renewable-energy wire. Certificates and test reports are issued by the manufacturer and can be supplied with your quotation on request.

03 How long is the lead time?

For electronic wire, popular styles such as UL1007, UL1015, UL1061 and UL1569 are normally available quickly; other styles, non-standard colours and cut lengths usually take around 7 days. Wire harnesses are made to order, so the schedule depends on your drawing, connector availability and quantity — we confirm it in the quotation.

04 What are your payment terms?

We commonly accept T/T (telegraphic transfer), PayPal and Western Union. Typically a 30% deposit is required before production, with the balance paid before shipment.

05 How do you ship the goods?

Samples and small orders are shipped by international express (DHL, FedEx, UPS, TNT) or by air freight. Larger orders normally go by sea to reduce freight cost. We can quote EXW, FOB, CIF or door-to-door terms and will recommend the option that best fits your budget and delivery date.

06 Do you have a minimum order quantity (MOQ)?

We keep a low MOQ to support your business. Generally the MOQ is 1 piece for standard models, although it may vary slightly for customised products. Small trial orders are welcome.

07 Can you build harnesses to our own drawing or sample?

Yes. We build to print and build to sample — send us a 2D drawing, a BOM, connector part numbers or even a photo of the part in use, and we will assemble, test and quote accordingly.

08 Can I get a sample before placing a bulk order?

Yes. We are happy to build a prototype first so that you can approve the fit, crimp and finish before committing to volume. Send the drawing and the target quantity and we will quote sample cost and lead time.

09 What information do you need to give a quotation?

For wire: the style or UL number, AWG, voltage and temperature rating, insulation, conductor, colour and length. For harnesses: the drawing or BOM, connector brand and part number, terminal and housing type, wire specification, cut length and tolerance, sleeving or tubing, label and packaging requirements, quantity and destination. If anything is unclear we will ask — or propose a construction for you.

10 Do you support OEM / ODM and private labelling?

Yes. We work with customer-specified connectors and brands as well as JST, Molex and HongXing, and can add printed markers, custom labels, printed bags and your own carton artwork for OEM and ODM projects.

11 How do you control quality?

Every order goes through incoming wire inspection, cutting and stripping checks, crimp height and terminal pull-force testing, 100% continuity and open-and-short testing, and a final dimensional and visual inspection. Inspection records can be supplied with the shipment when your project requires them.

12 Can you help with wire and connector selection?

Yes — our engineers help match wire gauge, insulation and temperature rating to your current, voltage and working environment, and select a terminal and housing combination that crimps reliably. Describe the application or send a sample and we will propose a construction.

13 Can you supply cut lengths and custom packaging?

Yes. Wire can be supplied in cut lengths, coils or spools, with PE bags, cartons, pallets and printed labels arranged to suit your warehouse or production line.

14 Do you ship worldwide, and can I visit the factory?

We ship worldwide, with regular shipments to Europe, North America, South-East Asia, the Middle East and Australia. You are welcome to visit our plant in Suzhou, and you can see our production lines in the factory videos on this site.

15 What happens if there is a quality problem after delivery?

Contact us with the order or batch number and photos of the issue. We will check it against our production and inspection records and, where the fault is confirmed on our side, arrange replacement or credit.

Send us your requirement See our production lines

Need wire to a specification?

Send the style, AWG range, colour and length — or your BOM and drawing. We will come back with construction, availability and lead time. This catalogue publishes no prices; every enquiry is quoted directly.

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