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CDI Ignition Module for Yamaha YFZ450 2004-2009

CDI Ignition Module for Yamaha YFZ450 2004-2009

SKU:RM02148

Regular price £107.20 GBP
Regular price Sale price £107.20 GBP
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CDI Box for Yamaha YFZ450 2004-2009

Fits Yamaha YFZ450 2004-2009

This CDI (Capacitor Discharge Ignition) module is built to OEM specifications as a direct plug-in replacement for the ignition system on the Yamaha YFZ450. It restores reliable spark timing for consistent starting and running.

The unit is fitted with a 2-plug, 12-pin connector layout matching the factory harness, and measures 86mm long by 81mm wide with a 30mm case height, so it installs directly in place of the original module without any changes to the surrounding wiring.

Key Features

  • Direct OEM fit and finish, no wiring modifications required
  • 2-plug, 12-pin connector layout matching the original harness
  • 86 x 81 x 30mm case for a direct swap
  • Covers Yamaha YFZ450 2004-2009
  • Please note: CDI units are excluded from warranty and are non-refundable once fitted

Technical Specs

Specification Detail
Height 30mm
Length 86mm
Width 81mm
Plugs 2
Pins 12

Vehicle Fitment Guide

Make & Model Years
Yamaha YFZ450 2004-2009

OEM Part Number Cross Reference

Aftermarket replacement. OEM part numbers are listed for reference only.

Part Number Manufacturer / Brand
5TG-85540-00-00 Yamaha
5TG-85540-10-00 Yamaha

Frequently Asked Questions

Will this CDI fit without any modifications?

Yes, it is a direct plug-in replacement using the original connector layout, so no cutting or splicing of the wiring loom is required.

What is included?

One CDI module, ready to fit in place of the original unit.

How can I tell my CDI has failed?

Common symptoms include no spark, intermittent misfiring, stalling, or a complete failure to start even though the battery and starter are working normally.

Is this CDI covered by warranty?

Due to the sealed electronic nature of CDI units they are excluded from our standard warranty and are non-refundable once fitted. Please confirm the OEM number against your original unit before ordering.

Do I need to reprogram or reset anything after fitting?

No, the unit is a like-for-like electronic replacement - once connected it works immediately with no reprogramming, resetting, or additional adjustment needed.

Dispatched from the UK · 12-month warranty · Fitment support from our technical team
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Shipping calculated at checkout. Free shipping over £150. Terms apply