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SKU:
ZZ3J00009
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CDI Box for Yamaha YFZ 450 2004 2005-2009 # 5TG-85540-10-00
$42.59
In Stock
$42.59
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$42.59
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
CDI Box for Yamaha
This CDI box for Yamaha YFZ 450 ATVs is an ignition control module that regulates spark timing, referencing OEM part number 5TG-85540-10-00.
Overview
This CDI Box for Yamaha YFZ 450 models delivers precise ignition timing and reliable spark delivery, ensuring consistent starting and optimal engine performance. It is designed as a direct replacement for the original CDI unit, matching the requirements of the 2004-2009 YFZ 450. Whether you are trail riding or racing, this CDI box helps maintain efficient engine operation.
Built For Performance
- Solid-state circuitry for consistent spark output
- Direct replacement for OEM part 5TG-85540-10-00
- Matches original ignition curves for reliable power
- Weather-resistant housing for off-road durability
- Plug-and-play installation without wiring modifications
Fits These Machines
- for Yamaha YFZ 450 (2004)
- for Yamaha YFZ 450 (2005-2009)
On-The-Job Use
- For trail riding and off-road racing on Yamaha YFZ 450 ATVs
- Replaces a failed CDI box to restore engine start and performance
- Used in maintenance or rebuild projects requiring ignition system replacement
Specs At A Glance
| Part Number(s) | 5TG-85540-10-00 |
Good To Know
Q: Does this CDI box work with aftermarket exhaust? A: Yes, it is designed to match factory ignition curves, but aftermarket modifications may require tuning.
Q: Is installation straightforward? A: Yes, it plugs directly into the stock wiring harness with no splicing required.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.