Regulator Rectifier for KTM EXC MXC and Yamaha Models 1997-2017
New aftermarket replacement part
Regulator Rectifier for KTM EXC MXC and Yamaha Models 1997-2017 - a new aftermarket regulator / rectifier, supplied ready to fit.
The regulator/rectifier converts AC from the stator into regulated DC. When it fails you get boiling batteries and blown bulbs from overcharging, or a flat battery from no charge at all.
Key Features
100% new aftermarket unit - not a remanufactured core
Direct-fit replacement, no modification required on listed applications
Built to meet or exceed the original equipment specification
Dispatched from the UK with technical fitment support
Technical Specs
Specification
Detail
SKU / Part Code
RMS020-102045
Component
Regulator / Rectifier
Condition
New aftermarket
Warranty
12 months
Vehicle Fitment Guide
Model
Years
Part code: RMS020-10
2045
Compatibility: Yamaha and KTM models
1997-2017
Yamaha YFM 50 Raptor
2004-2008
YFM 80 Grizzly
2005-2008
YFM 80 Raptor
2002-2008
YFA1 Breeze 125
1997-2004
Beta RR 250 Enduro
2005-2007
RR 400 Enduro
2005-2012
RR 450 Enduro
2005-2012
Frequently Asked Questions
How do I test a regulator rectifier?
Measure battery voltage with the engine running: below about 13.5V means undercharging, above about 15V means the regulator has failed open and is overcharging. Check the stator output first so you do not replace the wrong part.
Does it come with the connector?
It is supplied with the original style connector on the models listed. Check the images against your existing unit.
Why do these fail so often?
Heat. They dissipate excess charging current as heat, so a blocked cooling fin area, a corroded earth or a weak battery all shorten their life. Mount it where it gets airflow.
Will a failed regulator damage anything else?
Yes - overcharging cooks batteries and blows bulbs, and a shorted regulator can take the stator with it. Fit the replacement promptly.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
