Cummins 9Pin Male to Female OBDII 16Pin Female Y type CAN Diagnostic Wiring Harness 330mm

Shenzhen Fubang Wiring Harness Co., Ltd. has focused on the R&D and production of customized car wiring harness for over a decade, holding the IATF16949 certification to satisfy rigorous automotive manufacturing quality specifications. We provide full-cycle one-stop solutions covering structural design, precision terminal crimping, comprehensive electrical testing and finished product assembly for all categories of custom wiring harness. Our wide product lineup includes passenger vehicle signal adapters, heavy-duty truck CAN bus connecting lines, industrial equipment transmission wires and professional OBD diagnostic cable, supplying auto repair stores, vehicle monitoring equipment manufacturers and engineering machinery brands across the globe. Every piece of OBDII cable rolling off our production lines undergoes strict continuity, insulation and voltage resistance testing before packaging, which effectively rules out potential circuit defects and guarantees stable long-term use for end users.

This 330mm Y-type conversion line, named Cummins 9Pin Male to Female OBDII 16Pin Female Y type CAN Diagnostic Wiring Harness 330mm, is exclusively developed for Cummins heavy-duty diesel trucks and fully matches the J1939 CAN bus diagnostic system of commercial vehicles. Built as a specialized customized car wiring harness oriented to fleet management maintenance and engine fault detection, it combines a threaded waterproof 9Pin male connector, matching 9Pin female connector and standard OBDII 16Pin female port into an integrated split layout, enabling maintenance technicians to link diagnostic scanners directly without disassembling the vehicle’s original internal wiring.

Unlike ordinary single-head short OBD diagnostic cable commonly seen on the market, this custom wiring harness features a unique dual-branch layout that supports simultaneous connection to truck ECU data acquisition equipment and aftermarket fleet monitoring hardware. The cable body adopts soft black PVC outer skin paired with 20AWG high-conductivity tinned copper wire core, delivering steady signal transmission and powerful anti-electromagnetic interference capacity to sustain continuous data reading during long diagnostic operations. All connector housings are made of PA66+GF automotive-grade engineering plastic, while the threaded waterproof 9Pin interfaces block dust, engine oil and moisture intrusion inside the narrow truck cockpit to extend service life greatly.

Item	Description
Product Name	Cummins 9Pin Male to Female OBDII 16Pin Female Y type CAN Diagnostic Wiring Harness 330mm
Type	12V/24V Heavy-Duty Truck CAN Bus Diagnostic Y-type Wiring Harness
Voltage	12V/24V DC, Customized Available
Pins Material	Nickel-Plated Brass Terminals, Gold-Plating Optional
Plug Material	PA66+GF Automotive Grade Cummins 9Pin Male/Female Threaded Waterproof Connector Housing, OBDII 16Pin Female Connector Housing, Black Flexible PVC Cable Jacket, Reinforced Strain Relief at Both Ends
Working Temperature	-40℃~+105℃ Or Customized
Length	1500±50mm / Customized Length Available
Minimum Insulation Resistance	≥10MΩ
Maximum Conduction Resistance	≤3Ω
Application Fields	Cummins heavy-duty truck & commercial vehicle CAN bus fault diagnosis, diesel engine ECU data reading, fleet vehicle ELD tracking device connection, truck diagnostic scanner wiring, agricultural machinery & engineering vehicle OBD conversion, automotive electronic R&D bench testing, custom Y-type CAN diagnostic wiring harness
Specific Shipping Cost	Please Contact Us

As a high-stability OBDII cable tailored for commercial vehicles, it supports real-time extraction of engine fault codes, driving mileage records and exhaust emission data. The fixed 330mm overall length strikes a perfect balance between operation flexibility and neat wiring arrangement within compact vehicle instrument panels, and we also offer flexible adjustments on wire length, pin assignment definition and connector appearance to fit special vehicle refitting requirements.

This wiring harness fits multiple practical scenarios including CAN bus fault diagnosis on Cummins heavy trucks, agricultural machinery and construction equipment, wiring connection for fleet ELD tracking devices via the reserved OBD female port, daily scanner matching work at auto repair shops to replace multiple separate OBD diagnostic cable, bench test wiring in automotive electronics research labs where customized car wiring harness layouts are required for technical verification, and aftermarket vehicle modification projects with adjustable circuit logic through revisions to the custom wiring harness pin configuration.

Its prominent strengths lie in the multi-functional Y split structure that cuts down the quantity of single OBDII cable required during maintenance work, dustproof and waterproof threaded 9Pin connectors adapted to the harsh operating environment of commercial vehicles, unified full electrical pre-inspection standards consistent with every batch of our custom wiring harness, bend-resistant flexible wire material that prevents wire fracture from frequent plugging and twisting during diagnosis, and all-round customization support covering wire length, wire gauge and connector housing style to align with diverse customer project demands.