Diag4 Bike Parallel Diagnostic System Adapter - 35 PIN Magnetti/Bosch Adapter

Diag4 Bike parallel diagnostic adapter for 35-pin Magnetti/Bosch EFI modules, designed to measure input and output signals while the engine runs. The breakout box installs between the EFI module and motorcycle wiring harness without interrupting normal operation.

Features

• 35-pin Magnetti/Bosch connector compatibility
• Breakout box design for live signal monitoring
• All EFI module connector pins accessible on box
• Allows diagnostics on running engines

Specifications

• Brand: Diag4 Bike
• Manufacturer Part #: AT 531 4015
• Length: 11.5 in
• Width: 7.25 in
• Height: 2.25 in
• Weight: 2.0437 lbs
• Country of Origin: Czech Republic

Fitment

For Harley-Davidson and Indian motorcycles equipped with 35-pin Magnetti or Bosch EFI modules.

Frequently Asked Questions

Can I use this while the engine is running?

Yes — the breakout box sits between the EFI module and harness so the bike functions normally while you measure signals.

What connectors does this fit?

35-pin Magnetti and Bosch EFI connectors commonly found on Harley and Indian fuel injection systems.

Do I need a separate diagnostic tool to read the signals?

This adapter provides access points — you'll need a multimeter or oscilloscope to measure the voltage and signal data at each pin.