Your Trusted Domestic Automotive ECU Connector Supplier.
We have the manufacturing capabilities to produce multi-position automotive ECU connectors, sealed plugs, and PCB headers. Our integrated production processes include injection molding, terminal stamping, assembly, and inspection, along with matching terminals and seals, enabling us to provide one-stop connector solutions with reliable supply capacity.
With over 10 years of experience in the automotive parts industry, we are familiar with automotive ECU connector design requirements. We can evaluate your project and develop structural designs based on your samples or drawings, including OEM part number cross-referencing. We also provide compatible replacement solutions for connectors from international brands such as TE Connectivity and Molex, subject to technical compatibility verification.
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Professional China ECU Connector Supplier
If you are looking for ECU automotive connectors suitable for your automotive system, we are ready to assist you and provide stable, reliable and highly compatible connection solutions for control units.
At YUEQING QIYE AUTO PARTS CVCONNECTOR, the connectors we adopt automotive-grade premium engineering materials — reinforced PA66/PA6T nylon housing and high-conductivity copper alloy terminals. These materials endow our ECU connectors with outstanding features including high temperature resistance, aging resistance, high conductivity and strong vibration resistance. Suitable for working conditions such as engine compartments and chassis, they fully meet the demands of fuel vehicles, new energy vehicles, commercial vehicles and construction machinery.
In the manufacturing process, we follow multiple processing procedures including injection molding, terminal crimping, air tightness testing and more, to produce housings and components that meet high quality standards and exceed customers’ expectations.
We conduct precise polishing and inspection on the edges and locking structures of connectors to ensure smooth plugging and unplugging as well as firm locking. Before final installation, all products undergo strict full inspection for continuity, insulation and waterproof performance.
For stable signal transmission, high-purity tin-plated / gold-plated material is adopted for the terminal conductive layer, ensuring excellent reliability in signal transmission and contact resistance. In addition, multiple protective coatings are applied, including anti-corrosion plating, vibration-proof sealing gaskets, IP67 waterproof sealing rings and other accessories.
Automotive ECU Connector Solutions – Fitment & Compatibility
Multi-Pin ECU Connectors
90 Pin Male ECU Connector
90-Cavity Male Sealed ECU Connector, IP67 Rated, OEM Part Number: 211 PL902Y0008
90 Pin Female ECU Connector
90-Cavity Female Sealed ECU Connector, IP67 Rated, OEM Part Number: 211 PL902Y0008
ECU PCB Headers /Transmission Control Module Connectors
PCB-Mount ECU Headers provide a board-side mating interface for automotive
electronic control components, ensuring reliable electrical connections between
electronic control units and printed circuit boards (PCBs).
12 Pin PCB Type ECU Header
This is an IP67-rated sealed PCB pin header with OEM part number 1241434-1.
64 Pin ECU / Transmission Control Module Connector
Multi-position connector solutions are suitable for electronic transmission control modules. Please verify compatibility against the specific model, interface, and product specifications.
ECU Connector Types – Find the Right Connector for Your Project
Wire Side ECU Connectors
PCB Mounted ECU Headers
ECU / TCM Control Module Connectors
Custom ECU Connector Housing & Enclosure
Automotive ECU Connector Applications
Engine Control Units
Before selecting an ECU connector, confirm the application, ECU installation location, equipment type, and operating environment, including temperature, vibration, oil contamination, and dust exposure. Also verify the electrical specifications for power supply, sensors, and bus communication. The connector must meet powertrain operating requirements to ensure the ECU can continuously and reliably acquire sensor signals and drive actuators for closed-loop control of fuel injection, ignition, and variable valve timing.
Transmission Control Modules
When selecting a TCM transmission connector, first confirm the application, TCM installation location, equipment type, and operating conditions, including temperature, vibration, oil contamination, and exposure to mud and water. Also verify the electrical requirements for power supply, sensors, and bus communication. The connector must meet the operating requirements of the transmission system to ensure reliable sensor signal acquisition and shift solenoid actuation, enabling precise and smooth automatic transmission shifting.
Automotive Electronic Control Boards
When selecting an automotive electronic control board, first confirm the application, vehicle function controlled by the board, installation location, equipment type, and operating conditions, including temperature, vibration, oil contamination, and dust exposure. Also verify the electrical requirements for power loads, sensor data acquisition, and bus communication. The control board must meet the operating requirements of the vehicle system to ensure reliable sensor data acquisition and actuator control, supporting stable engine management, gear shifting, braking, and safety system operation.
Motorcycle EFI ECU Systems
When selecting a motorcycle EFI ECU connector, first confirm the application, ECU installation location, motorcycle type, and operating conditions, including temperature, vibration, exposure to rain and mud, and dust. Also verify the electrical requirements for power supply, sensors, and diagnostic communication. The connector must meet the operating requirements of the motorcycle fuel injection system to ensure reliable sensor signal acquisition and control of fuel injectors and ignition components, enabling precise fuel injection and ignition control.
Electrical Test
Waterproof Test
Terminal Retention
Mating Test
Dimensional Inspection
Why Pin Count Alone Is Not Enough for ECU Connector Selection
An ECU connector cannot be selected by pin count alone. The terminal layout, pin assignment, mating interface, housing dimensions, locking mechanism, PCB or wire-side configuration and electrical requirements must also be verified.
Pin Assignmen：Defines signal/power allocation of each pin. Mismatched pin assignment may cause signal disorder or short circuit even if mated, leading to ECU burnout.
Terminal Layout：Arrangement and pitch of terminals inside housing. Deviated layout causes misalignment and abnormal contact resistance, resulting in ECU signal fluctuation & intermittent disconnection.
Mating Interface：Mating profile & polarization feature of male/female connectors. Incompatible interface leads to failed polarization or incomplete mating, vibration-induced disconnection and ECU communication loss.
Housing Dimensions：Profile & mounting tolerance of plastic housing. Out-of-tolerance housing cannot fit ECU base. Vibration shakes connector, pulls terminals and destabilizes ECU signals.
Locking Structure：Primary lock & CPA/TPA secondary locking mechanism. Incompatible locking causes insufficient engagement. Vehicle vibration triggers connector separation and terminal back-out, intermittent ECU power/signal.
PCB / Harness Configuratio：PCB solder tail & wire crimp terminal geometry. Mismatched configuration leads to cold solder joint or poor crimp, contact failure of ECU under high & low temperature cycles.
OEM & ODM Automotive ECU Connector Solutions
We offer customization options to meet your project requirements, including custom connector housings, terminal configurations, sealing structures, mating interfaces, and ECU wiring harness assemblies
We provide comprehensive support throughout the entire process, from connector design to sample development. A dedicated sales representative coordinates every stage of your project, while our engineering team conducts a technical feasibility assessment to ensure a reliable development process.
Frequently Asked Questions About Automotive ECU Connectors
The automotive ECU connector serves as an electrical interface, linking the electronic control unit to matching wiring harnesses, PCBs and other electrical components.
YUEQING QIYE AUTO PARTS CVCONNECTOR lists multi-pin ECU connectors, sealed plug options and PCB-type ECU headers, with the available configurations depending on the product series.
Yes. Send the OEM part number, connector photo or drawing so the relevant model and interface can be checked.
