RP1226 to J1939 Y-Splitter Cable for Heavy Duty Truck ELD & Diagnostics
Structured Parameter Table
| Technical Specifications | Value / Details |
| Interface A (Truck Side) | RP1226 14-Pin Male |
| Interface B (Passthrough) | RP1226 14-Pin Female |
| Output Port 1 (Type 2) | J1939 9-Pin Green Female (500k CAN) |
| Output Port 2 (Type 1) | J1939 9-Pin Black Female (250k CAN) |
| Compatibility | Freightliner, Western Star (2018+), and newer trucks with RP1226 |
| Wire Gauge | 20AWG (High-Temperature Automotive Grade) |
| Application | ELD Installation, GPS Tracking, Diagnostic Tool Adaptation |
Product Description
This RP1226 to J1939 Y-splitter cable is designed for heavy-duty trucks, converting the RP1226 port into J1939 and RP1226 outputs for simultaneous connection of ELD devices, diagnostic scanners and fleet management tools.
Made of automotive-grade materials, it ensures stable CAN bus data transmission.
Usage Scenarios
Concurrent ELD & Diagnostic Access
Install your ELD device into the internal RP1226 port while keeping the dashboard J1939 port completely open for mechanic access during repairs.
Legacy Tool Support
Connect older 250k CAN diagnostic scanners (Black plug) to newer 2018+ trucks that typically use the green 500k standard.
Discrete GPS Tracking
Hide your telematics and tracking hardware behind the dashboard panels using the RP1226 connection, preventing driver tampering and maintaining a clean cab interior.
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