Seamless Communication for Blue Bird – OEM Jumper Harness (10057138)
What is it?
The OEM 10057138 Jumper Harness is a factory wiring assembly designed for Blue Bird buses equipped with Cummins ISB 6.7L engines. This harness connects critical electronic components—such as DEF modules, SCR systems, and engine sensors—ensuring proper signal transmission and system coordination.
Why choose this OEM Jumper Harness?
Built to match Blue Bird and Cummins wiring specifications, this harness ensures correct pin layouts, signal integrity, and durable connections. Using the genuine part helps prevent miswiring, voltage drop, signal faults, or diagnostic errors often caused by generic or modified harnesses.
Key Benefits
✅ Direct OEM fit for Blue Bird with Cummins ISB 6.7L
✅ Preserves factory wiring pinouts and signal paths
✅ Reduces risk of shorts, misconnects, or signal degradation
✅ Ensures stable communication between engine and emission modules
✅ Built from quality materials for long-term durability
Applications
Ideal for Blue Bird buses and transit vehicles powered by the Cummins ISB 6.7L engine—especially when servicing or replacing emission system components, ECM modules, or upgrading wiring. Vital for restoring factory-level connectivity after electrical work.
Installation Notes
Have a qualified technician install the harness. Begin by disconnecting battery power to prevent shorts. Route the new harness along factory cable paths, securing with clamps or ties as needed. Connect all plugs firmly, inspecting pins and seals for damage or corrosion. After installation, verify system communication via diagnostics and confirm no signal faults remain.
Final Thoughts
If your Blue Bird bus exhibits wiring errors, communication faults, or diagnostic issues between emission and engine control modules, the OEM 10057138 Jumper Harness restores proper connectivity. It’s a precise, reliable wiring solution built to factory specs—helping your bus systems talk cleanly and run smoothly.