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Auto connectors, also known as harness housings, connectors or plastic housings, are core components for circuit conduction in electronic engineering. They consist of four major parts: contacts, housing, insulators and accessories.
These components are widely adopted in automotive electronic systems, with a single vehicle requiring 600 to 1000 pieces. The housing provides mechanical protection and fixing functions; the insulator ensures the arrangement of contacts and circuit insulation. Structural accessories include standard parts such as retaining rings and sealing gaskets.
Yulian manufactures automotive connectors for electrical connection systems where stable mating, proper sealing, and application suitability are essential. Our category range includes waterproof sealed series, compact signal connectors, and sensor connector housings. These products help engineers and purchasers source connection parts for vehicle wiring, equipment control systems, and machinery assemblies.
With R&D and manufacturing capabilities, Zhejiang Yulian Technology Co., Ltd. supports standard product selection and customized connection development. Buyers can browse by connector series, sealing requirement, number of positions, connection type, or application. Our team can also assist with product selection, samples, custom development, and bulk order pricing.
Automotive electrical connectors for signal and power transmission
Waterproof and sealed connector series for demanding environments
Wiring harnesses, terminals, connector housings, and connection assemblies
OEM and ODM support for customized automotive connection solutions
Yulian offers a broad range of automotive connector products, including heavy-duty sealed connectors, waterproof connectors, signal connectors, sensor connector housings, and specialty connection parts. This category helps buyers compare series and identify suitable options by application environment, connection method, and position configuration.
Whether your project requires OEM auto connectors for vehicle wiring, sealed connectors for off-highway machinery, or compact signal interfaces, our team can support product matching. We provide technical communication from sample making to mass production.
| Product Series | Main Characteristics | Connection / Position Notes | Typical Applications |
|---|---|---|---|
| DEUTSCH DT, DTM, DTP Series | Waterproof auto connectors designed for harsh environments | Heavy-duty sealed connector family | Commercial vehicles, construction machinery, agricultural machinery |
| LEAVYSEAL Series | Sealed and reliable automotive connectors | Wire-to-wire, wire-to-panel, and wire-to-board connections | Commercial vehicles, off-highway equipment, industrial machinery |
| AMPSEAL 16 Series | IP67 waterproof automotive connector with integrated locking latch | 2, 3, 4, 6, 8, and 12 positions | Engines, gearboxes, electric motor controllers, chassis, cab interiors |
| MQS 0.63mm Series | Automotive signal connector option | Suitable for signal interface requirements | Vehicle and equipment electrical systems |
| NOx Sensor Connector Housings | Specialty sensor connector housing products | Used for sensor-related connection needs | Automotive sensor systems |
| DRC, HDSCS, AMP SUPERSEAL 1.5 Series | Specialty and sealed automotive connector options | Includes DRC auto connectors, HDSCS 1 pin connector, and AMP SUPERSEAL 1.5 connectors | Automotive and machinery connection systems |
DEUTSCH series waterproof auto connectors, including DT, DTM, and DTP series, are designed for harsh environments. They support connection reliability in vehicle and machinery applications. These heavy-duty sealed connectors are commonly selected for commercial vehicles, construction machinery, and agricultural machinery operating in demanding field conditions.
For buyers comparing DEUTSCH series options, Yulian can assist with series selection, mating requirements, terminal matching, and related wiring needs. These connectors are suitable when sealed automotive electrical connectors are preferred over unsealed products.
LEAVYSEAL series automotive connectors provide sealed and reliable options for wire-to-wire, wire-to-panel, and wire-to-board applications. They are suitable for commercial vehicles, off-highway equipment, and industrial machinery. These systems often require stable connectivity in outdoor or machinery environments.
This series is often considered for larger wiring layouts, panel interfaces, or equipment connection structures. Yulian supports product matching and helps purchasers evaluate LEAVYSEAL connectors by application, installation position, and connection type.
AMPSEAL 16 series automotive connectors are IP67 waterproof connectors for sealed wire-to-wire and wire-to-device connections. The integrated locking latch supports secure mating. The series is available in 2, 3, 4, 6, 8, and 12 positions for different electrical layouts.
These waterproof automotive connectors are used in engines, gearboxes, under shrouds, electric motor controllers, solenoid interfaces, chassis, and cab interiors. For harsh or enclosed vehicle environments, AMPSEAL 16 is an important series within Yulian’s product range.
Yulian also supplies MQS 0.63mm automotive signal connectors, NOx sensor connector housings, DRC series auto connectors, HDSCS series 1 pin connectors, and AMP SUPERSEAL 1.5 series automotive connectors. These products support compact signal interfaces, sensor connections, and specialty wiring configurations.
When choosing these options, buyers should consider interface space, pin requirements, mating components, wiring layout, and environmental conditions. Our team can provide technical support for connector housings, terminals, and related connection products.
Waterproof auto connectors are widely used in automotive and machinery systems exposed to moisture, dust, outdoor operation, and demanding installation locations. Yulian offers sealed automotive connectors and waterproof series for applications where secure mating and environmental protection are key selection factors.
Different connector families support wire-to-wire, wire-to-panel, wire-to-board, and wire-to-device connections. AMPSEAL 16 series connectors provide IP67 waterproof performance where applicable. DEUTSCH and LEAVYSEAL series products are designed for harsh-environment and sealed connection applications.
| Connection Type | Typical Use | Relevant Auto Connector Series |
|---|---|---|
| Wire-to-Wire | Connecting two wiring sections within a vehicle or equipment harness | LEAVYSEAL, AMPSEAL 16, DEUTSCH series options |
| Wire-to-Panel | Connecting harnesses through panels or mounted interfaces | LEAVYSEAL series options |
| Wire-to-Board | Connecting wiring to board-level assemblies | LEAVYSEAL series options |
| Wire-to-Device | Connecting wiring directly to devices, controllers, or equipment interfaces | AMPSEAL 16 series options |
Sealed connector designs for demanding vehicle and machinery environments
Waterproof options, including IP67 AMPSEAL 16 automotive connectors
Secure locking structures where available to support stable mating
Connector choices for power, signal, sensor, and equipment interface applications
Yulian auto connectors are used across commercial vehicles, construction machinery, agricultural machinery, off-highway equipment, new energy systems, and industrial machinery. These applications often require automotive electrical connectors matched to wiring layouts, operating environments, and installation positions.
Application-based selection helps buyers identify the right product type. Your project may need waterproof connectors for outdoor equipment, signal connectors for compact interfaces, or sealed wire-to-device connectors for control units. Yulian’s range supports connection needs in engines, gearboxes, chassis, cab interiors, solenoid interfaces, electric motor controllers, and related vehicle systems.
Commercial vehicle auto connectors support reliable electrical connections in vehicle wiring systems, chassis areas, cabin interiors, control systems, and related assemblies. Buyers often focus on sealed performance, secure mating, and compatibility with practical wiring harness layouts.
Yulian supplies automotive wiring connectors, terminals, and harness-related products for commercial vehicle projects. Our engineering and manufacturing support helps customers evaluate connector series, position requirements, and customization needs.
Construction machinery, agricultural machinery, and off-highway equipment often operate in outdoor, dusty, wet, and vibration-prone conditions. In these environments, sealed automotive connectors and waterproof auto connectors are commonly required for stable electrical connections.
DEUTSCH DT, DTM, and DTP series connectors are designed for harsh environments. They are suitable for construction and agricultural machinery applications. LEAVYSEAL connectors also suit off-highway equipment and industrial machinery requiring sealed wire-to-wire, wire-to-panel, or wire-to-board connections.
New energy applications and industrial machinery require dependable automotive electrical connectors for evolving equipment designs and control systems. Yulian supports these industries with automotive connectors, wiring harnesses, terminals, and customized connection solutions matched to project requirements.
For electric motor controllers, solenoid interfaces, equipment controls, or machinery assemblies, buyers can contact Yulian. Our team can discuss suitable connector series, sample requirements, and mass production planning.
Selecting the right automotive connector requires more than choosing a housing shape. Engineers and purchasers should consider operating environment, sealing requirement, number of positions, current or signal needs, wire size, mating method, installation space, and locking design. They should also confirm whether the connection is wire-to-wire, wire-to-panel, wire-to-board, or wire-to-device.
For harsh environments, waterproof sealing and secure mating should be prioritized. For compact signal systems, automotive signal connectors and suitable terminals may be more important. If your project involves OEM auto connectors, custom harness integration, or replacement matching, Yulian can provide technical support.
The following checklist helps buyers prepare requirements before requesting a quotation or technical recommendation. Clear information helps Yulian recommend a suitable series and avoid mismatches during sample confirmation or mass production.
| Selection Factor | What to Confirm | Why It Matters |
|---|---|---|
| Application Environment | Commercial vehicle, construction machinery, agricultural machinery, off-highway equipment, new energy, or industrial machinery | Determines sealing, durability, and series suitability |
| Sealing Requirement | Waterproof or sealed requirement, including IP67 where applicable | Helps choose waterproof auto connectors or sealed automotive connectors |
| Number of Positions | Pin or cavity count, such as 2, 3, 4, 6, 8, or 12 positions for AMPSEAL 16 | Ensures the connector matches the circuit layout |
| Connection Type | Wire-to-wire, wire-to-panel, wire-to-board, or wire-to-device | Matches connector structure to installation method |
| Electrical Requirement | Signal or power connection needs | Helps select suitable automotive electrical connectors and terminals |
| Customization Needs | Housing, terminal, sealing structure, position configuration, material, color, or harness integration | Supports OEM/ODM development and custom connection solutions |
When requesting an auto connector quote, please provide as much project information as possible. This helps our team review your requirement efficiently and recommend a suitable product series or custom development path.
Connector series, part reference, drawing, or sample if available
Application and installation location
Number of pins or positions
Wire size and terminal requirements
Waterproof or sealing requirement
Connection type: wire-to-wire, wire-to-panel, wire-to-board, or wire-to-device
Estimated quantity and mass production plan
OEM, ODM, mould development, or customization requirements
Yulian provides one-stop custom auto connector and connection solutions for global customers. In addition to standard automotive connectors, wiring harnesses, and terminals, we support OEM and ODM projects for different product requirements. Our services include connector development, mould design and development, sample making, precision processing, and mass production.
Customization may involve connector housing design, terminal matching, sealing structure, position configuration, material or color requirements, and harness integration. With a professional R&D and design team, Yulian provides technical support from product design and sample making through stable mass production.
| Customization Stage | Yulian Support | Buyer Input Needed |
|---|---|---|
| Requirement Analysis | Review application, connection type, and product target | Application, drawing, sample, or technical requirement |
| Design Support | Product development and connector structure review | Series preference, installation space, and performance expectations |
| Mould Development | Mould design and development for customized products | Confirmed design direction and project details |
| Sample Making | Sample preparation for customer confirmation | Sample feedback and adjustment requirements |
| Testing and Quality Control | Testing support through advanced test equipment and strict quality control | Testing requirements where applicable |
| Mass Production | Stable mass production from modern manufacturing bases | Order quantity, delivery planning, and packaging requirements |
If your project requires custom automotive connectors, OEM auto connectors, ODM automotive connectors, or integrated wiring harness assemblies, send your drawing or sample to Yulian for evaluation.
Zhejiang Yulian Technology Co., Ltd. is a professional auto connector manufacturer with 18 years of production experience in automotive connection products. The company has two modern manufacturing bases and supports stable mass production. Yulian also offers more than 1,000 products across automotive connectors, wiring harnesses, terminals, and customized connection solutions.
Our professional R&D and design team supports product development, mould design, sample making, and mass production. This factory capability allows buyers to work directly with a manufacturing partner, not only a distributor-style catalog.
IATF 16949 certified factory for automotive connector manufacturing
Strict quality control throughout production
EMC certification issued by UDEM
RoHS environmental protection certification
Advanced test equipment meeting various testing requirements
OEM and ODM support for customized connection solutions
Two modern manufacturing bases supporting stable mass production
For buyers seeking an automotive connector supplier with engineering support, manufacturing capability, and custom development experience, Yulian provides one-stop services. We support product selection, sample making, and production delivery.
Contact Yulian to request auto connector pricing, product selection support, samples, custom connector development, or bulk automotive connector quotations. As your Auto Connector manufacturer and supplier, Zhejiang Yulian Technology Co., Ltd. supports global customers with standard products, OEM/ODM projects, and mass production requirements.
To help us respond quickly, please share your connector type, application, pin count, sealing requirement, quantity, drawing or sample, and customization needs. Our team can help you compare waterproof auto connectors, automotive signal connectors, sensor connector housings, terminals, and wiring harness connection solutions.
Request a quote for standard or bulk automotive connectors
Send your drawing for custom auto connector development
Ask for technical support for product selection and sample making
Discuss OEM/ODM requirements for wiring harnesses, terminals, and connection assemblies
We supply waterproof auto connectors, automotive signal connectors, sensor connector housings, terminals, wiring harnesses, and custom connection solutions. Main series include DEUTSCH DT/DTM/DTP, LEAVYSEAL, AMPSEAL 16, DRC, MQS, and AMP SUPERSEAL 1.5.
Yes. Our team supports OEM and ODM projects, including product development, mould design, sample making, testing, and mass production. We provide one-stop custom connection solutions based on customer requirements.
Yes. Yulian offers sealed and waterproof connector options for vehicles, construction machinery, agricultural machinery, and off-highway equipment. Available options include IP67-rated AMPSEAL 16 series connectors.
Please provide the connector series or drawing, application, number of positions, wire size, waterproof requirement, quantity, and customization needs. This helps our team recommend a suitable connector solution.
Yes. Yulian is an IATF 16949 certified factory with strict quality control. The company also has EMC certification issued by UDEM and RoHS environmental protection certification.
