Product
OBD2 to J1708 & J1939 Splitter Cable for Heavy-Duty Truck Diagnostics

OBD2 to J1708 & J1939 Dual Data Stream Splitter Cable for Heavy-Duty Truck Diagnostics

Model
OBD2-J1708-J1939-001
CE certification mark for compliance with European Union safety standards
RoHS compliant logo, certifying restricted use of hazardous substances
MSDS certification logo for material safety data sheet compliance
UL certification mark, certifying compliance with North American safety standards UL certification mark, certifying compliance with North American safety standards UL certification mark, certifying compliance with North American safety standards
KC certification mark for compliance with South Korean safety standards

Product Details

Product Highlights

Dual Data Stream Parallel Processing (Truck Diagnostic Splitter)

Exclusive circuit design enables zero-conflict simultaneous capture of J1708 engine parameters and J1939 telematics data

Triple-Layer EMI Shielding Architecture

Coaxial shielding + braided mesh + aluminum foil layer ensures complete data transmission in high-interference truck environments

Real-Time Dual Protocol Diagnostics

Maintains data integrity during simultaneous engine and telematics monitorin

Deep Factory Customization Solutions

Full-process personalized customization from cable specifications (AWG 16–24) to connector colors and brand identification

Rugged Full-Plastic Housing

Connectors 100% factory-tested for professional use

Compliance & Certification

ISO 9001, ISO 14001, IATF16949, RoHS, CE, UL, REACH

Key Features

Dual Protocol Parallel Processing

Dedicated signal separation circuit for J1708 and J1939, preventing data conflicts

High Conductivity Pins

Gold-plated contacts ensure precise signal transmission for heavy-duty fleet diagnostics

Durable Full-Plastic Housing

Resistant to vibration, oil, temperature extremes, and mechanical stress

Military-Grade Connectors

Shock-proof locking mechanism and corrosion-resistant pins for harsh conditions

OEM Customizable Options

Cable length 0.5–8m, AWG 16–24, custom color and logo

Smart Auto-Detection Plug & Play

Automatically identifies protocol types and optimizes signal parameters without drivers or device configuration

Four-Dimensional Quality Verification System

Each cable undergoes rigorous testing for signal integrity, protocol compatibility, mechanical durability, and environmental adaptability

Extended Service Life Design

Military-grade materials and gold-plating process ensure stable operation for 3+ years in high-intensity fleet environments

Compatibility: OBD2 J1708 J1939 Splitter Cable

Supported Devices

Works with OBD2 16-Pin female, J1708 6-Pin, and J1939 9-Pin heavy-duty truck devices

Tool & System Compatibility

Fully compatible with OEM diagnostic tools, professional repair shops, and fleet telematics systems

Internal Links:

Applications

Ideal for:

  • Connecting OBD2 and J1708/J1939 devices simultaneously for heavy-duty truck diagnostics.
  • Installing aftermarket telematics and fleet management systems in tight dashboar
  • ECU data logging and monitoring in confined engine compartments.
  • In-cab displays, sensors, or monitoring devices where cable interference must be minimized.
  • OEM projects requiring customized cable lengths, wire gauges, and branding.

Feature Comparison Table

FeatureStandard J1939 9-Pin CableOBD2 to J1708/J1939 Dual Data Stream Splitter Cable
Dual Connection✅ Connects OBD2 and J1708/J1939 devices simultaneously
Space Saving✅ Compact design for dashboards and engine compartments
OEM Compatible✔ Fully customizable length, AWG, color, and branding
Signal Reliability✅ Shielded twisted pair for interference-free diagnostics
Installation Flexibility✅ Supports tight bends and back-panel mounting

Why Choose Us

Direct Factory Experience

20+ years factory experience – Real factory, not trading compan

Rigorous Quality Inspection

Four-step quality inspection ensures dual-stream data accuracy

5S Management & Controlled Warehouse

OEM Customization

Logo, brand, cable length, AWG, color

Certifications & Compliance

ISO 9001, ISO 14001, IATF16949, RoHS, CE, UL, REACH

Full-Plastic Tested Design

Reliable for professional use

Trusted by OEMs

Automotive diagnostic tool manufacturers and heavy-duty truck OEMs

FAQ

How does this splitter cable help fleets reduce operational costs?

By simultaneously monitoring engine performance (J1708) and vehicle operational data (J1939) through a single connection, it reduces diagnostic time by ~60%, while predictive maintenance lowers unexpected downtime costs by ~30%.

Is this cable shielded against electrical interference?

Yes, triple-layer EMI shielding ensures stable, zero-loss dual data stream even during engine start.

Does dual data stream collection affect diagnostic accuracy?

Patented signal separation technology allows each protocol independent processing channels, ensuring both data streams operate without interference and improving diagnostic accuracy by ~15% compared to single-protocol mode.

How is the connector design optimized for heavy-duty trucks?

Military-grade connectors with gold-plated pins, shock-proof locking, and protocol-specific layout ensure compatibility and durability.

How many times is the product quality checked during manufacturing?

Each cable undergoes four-dimensional quality verification: conductivity, shielding, protocol compatibility, and environmental durability.

Is this cable durable for heavy-duty truck diagnostics?

Yes, full-plastic housing and high-grade pins provide long-term stability for professional fleet environments.

Does it support OEM diagnostic scanners and telematics tools?

Fully compatible with professional diagnostic and telematics devices.

What unique advantages does dual data stream collection offer compared to traditional single-protocol diagnostics?

Captures correlations between engine control units and vehicle management systems, identifying relationships between fuel efficiency degradation and driving behaviors – insights impossible with single-protocol diagnostics.

Do you provide technical support or installation guidance?

Contact us via Contact Page or WhatsApp.

Q: What’s the main advantage of a dual data stream cable?

A: The key advantage is diagnostic efficiency. Instead of connecting to the OBD2 port and then the J1939 port, you can do both at once. This is crucial for fleet managers and technicians who need to correlate data from both networks quickly, such as comparing engine parameters (J1939) with vehicle speed (OBD2).

Contact & CTA

Contact Our Engineers

Need professional guidance or custom solutions?

Related Products

J1708 to OBD2 Adapter Cable 6-Pin

OBD2 16-Pin to J1939 Deutsch 9-Pin Adapter Cable

Recommended Reading

The Future of Automotive Diagnostics: Trends in OBD2 and J1939 Technology

Technical Specifications & Resources

Installation Guidelines

Step-by-step connection procedure:

  1. Connect OBD2 16-pin end to vehicle diagnostic port
  2. Attach J1708 6-pin connector to engine diagnostic tool
  3. Connect J1939 9-pin adapter to telematics monitoring device
  4. Verify dual data stream synchronization via diagnostic software

Note: No drivers required – supports automatic protocol detection

Product Specifications

  • Supported Protocols: J1708 & J1939 simultaneous data streams
  • Connector Types: OBD2 16-pin female, J1708 6-pin, J1939 9-pin
  • Standard Cable Length: 2 meters (custom 0.5–8m available)
  • Shielding: Triple-layer EMI protection (coaxial + braided + foil)
  • Operating Temperature: -40°C to 105°C
  • Compliance Standards: RoHS, CE, UL, REACH

Quality Certifications

Our manufacturing excellence is verified by international standards:

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