Regulator Rectifier RM30405 for Arctic Cat and Triumph Motorcycles
New aftermarket replacement part
Regulator Rectifier RM30405 for Arctic Cat and Triumph Motorcycles - 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
RM30405
Component
Regulator / Rectifier
Condition
New aftermarket
Warranty
12 months
Vehicle Fitment Guide
Model
Years
Triumph Scrambler 900
2006-2022
Triumph Bonneville 900
2001-2022
Triumph Bonneville T100
2002-2022
Triumph America 900
2002-2020
Triumph Speedmaster 900
2002-2020
Triumph Thruxton 900
2004-2020
Triumph TT 600
2000-2003
Arctic Cat 400 Automatic
1998-1999
Arctic Cat 500 Automatic
1998-1999
Arctic Cat Bearcat 454
1996-1998
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
