Diag4 Bike Parallel Diagnostic System Adapter - 73 PIN Delphi - Harley & Indian V-Twin
About Diag4 Bike
Diag4 Bike parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Diag4 Bike item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.
The Diag4 Bike Parallel Diagnostic System Adapter with a 73-pin Delphi connector is engineered for comprehensive, real-time EFI module signal monitoring on running V-twin engines. This breakout box integrates seamlessly between your EFI module and motorcycle harness, allowing technicians to measure input and output signals without interrupting engine function. It's a critical tool for detailed diagnostics and performance analysis.
Why riders pick this
- Monitor EFI signals in real-time on running engines
- Breakout box for non-invasive in-line installation
- Access all 73 Delphi EFI module connector pins
- Ideal for advanced V-twin engine diagnostics
For advanced diagnostics on V-twin motorcycles, understanding the live signals from your EFI module is paramount. The Diag4 Bike Parallel Diagnostic System Adapter provides direct access to these signals, letting you observe engine management behavior under actual operating conditions. This capability is invaluable for identifying intermittent issues and verifying the effectiveness of performance upgrades.
Uninterrupted Live Signal Monitoring
- Enables real-time EFI module signal monitoring on running engines
- Breakout box design allows in-line installation without disrupting operation
- Access and measure all 73 Delphi EFI connector pins simultaneously
- Designed for motorcycles equipped with 73-pin Delphi EFI connectors
Advanced Troubleshooting for V-Twins
This adapter is a professional-grade solution for diagnosing complex electronic fuel injection problems. By providing a window into the EFI module's live data stream, you can pinpoint issues with sensors, actuators, and wiring that might otherwise go undetected. It's an indispensable tool for anyone performing in-depth engine management analysis on their Harley or Indian V-twin.
Specifications
- Brand: Diag4 Bike
- Manufacturer Part #: AT 531 4064
- Connector Type: 73-pin Delphi
- Length: 11.5 in
- Width: 7.25 in
- Height: 2.25 in
- Weight: 2.3371 lbs
- Country of Origin: Czech Republic
Common questions
Can I use this adapter while the engine is running?
Yes, this Diag4 Bike adapter is specifically designed for live diagnostics on running engines. The breakout box installs in-line, allowing normal engine function during monitoring.
What signals can I monitor with this adapter?
You can monitor all input and output signals from the EFI module connector pins. This provides a comprehensive view of the electronic fuel injection system's operation.
Is this adapter compatible with my motorcycle?
This adapter is for motorcycles with electronic fuel injection (EFI) modules using 73-pin Delphi connectors. Please confirm your bike's connector type before ordering.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Diag4 Bike |
| TYPE | Engine Management |
| SKU | 867-02024 |
| WEIGHT | 2.34 lb |
