Custom heavy duty truck engine diagnostic wire harness

2 month ago

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2 year

Product details

Fubon Harness has decades of specialized experience in developing vehicle connection assemblies, with in-house mold workshop and full-process quality control to support global aftermarket and diagnostic equipment partners.

Serving as our Custom heavy duty truck engine diagnostic wire harness, this multi-port conversion cable consolidates three different industry-standard connectors into one integrated assembly. It interconnects Cummins 9Pin, BMW 10Pin and Molex 20Pin interfaces to realize cross-brand signal switching for heavy truck diagnostic tools. An inline 3A fuse is embedded on the positive circuit to shield diagnostic instruments from surge damage caused by unstable vehicle power supply, and the customized silicone seal structure on the Cummins connector effectively blocks moisture and grime during open-air maintenance work.

Item	Description
Product Name	Custom heavy duty truck engine diagnostic wire harness
Connector Configuration	• P1 Main Input: BMW 10Pin male connector (1.5:1 specification), black nickel-plated flame-retardant plastic housing with integrated locking buckle structure • P2 Diagnostic Output: Cummins 9Pin male connector, grass green outer ring + black plastic inner core, fitted with red silicone sealing gasket and 3-hole red silicone sheet for high-level waterproof sealing • P3 Signal Output: Molex MX-20Pin male connector (with female terminals), black plastic housing, matched with high-foot crimp terminals for stable signal transmission • Built-in 3A small blade fuse on the red wire circuit to provide overcurrent protection for the whole harness
Length	Total overall length of the main harness: 1000±10mm
Electrical Performance	• 100% Continuity Inspection: No short circuit, open circuit, instantaneous disconnection or misconnection defects • Withstand Voltage Test: DC 300V for 10ms without breakdown • Maximum Conduction Resistance: ≤2Ω • Minimum Insulation Resistance: ≥10MΩ • All electrical performance fully meets automotive wiring harness safety and reliability standards
Application	Cummins diesel engine ECU diagnostic wiring, truck/automotive on-board equipment connection, engine maintenance test cable, industrial vehicle electrical system wiring, automotive diagnostic tool adapter harness, heavy-duty truck engine control system connection

Supported by our mature R&D for custom wiring harness, our engineering team fine-tunes branch layout and wire thickness to match inner space limitations of mainstream truck diagnostic devices. UL2464 multi-gauge black cabling boasts excellent resistance against engine oil, mechanical friction and drastic ambient temperature swings common in repair bays.

Our flexible service covering custom electrical wiring enables flexible modification on total cable length, pin mapping and terminal types according to clients’ exclusive diagnostic machine upgrades. Each crimped connection undergoes pull force and continuity inspection to rule out loose contact or intermittent signal loss.

Functioning as a practical vehicle diagnostic cable adapter, this assembly serves as an essential accessory for diesel heavy-duty truck maintenance, widely applied in Cummins engine fault scanning, commercial vehicle onboard circuit troubleshooting and garage ECU reprogramming operations.

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Shenzhen Fubang Wire harness Co.,Ltd

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2 year

Main Product: OBDII CABLE, Automotive Cable Assembly, Automotive Cables , Automotive Wiring Harness, Custom Wiring Harness, Energy Storage Harness

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