Honda CB400 CM400 CB450 CM450 CDi Unit | 30400-MC9-831 | TIA01-20


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Rex’s replacement CDi unit for CB400/450 & CM400/450 twins that have units marked “TIA01-20”.  Applicable to Honda part numbers 30400-413-305, 30400-MC9-831, 30400-443-015, 30400-443-015 & 30400-443-005.

Our unit has been fined tuned to give excellent starting and crisp throttle response. Every CDi unit is tested before they are despatched – if problems remain or change the system has other faults.

  • Improved design, simple to fit
  • Great starting and crisp response
  • Complete with mounting bracket
  • Correct connectors – no set up

Note replacing the CDi unit alone may not cure running issues, the 400/450cc models have a very complex generator where if a winding fails in the generator it can also damage the CDi unit. We have a free to download troubleshooting guide for these bikes above and on the tech support page of this website.

Additional Information

Weight 0.31 kg
Country Of Origin