Resolve the common charging failures on your Aprilia with this comprehensive 4Drive / Aftermarket heavy-duty upgrade kit. The original Aprilia charging systems are notorious for excessive heat due to high-strength magnets in the OEM flywheel, often leading to stator burnout. Our kit solves this by utilizing a Kokusan-style flywheel with optimized magnet strength and a MOSFET regulator that runs significantly cooler than the standard shunt-type rectifiers.
ENGINE NUMBER CHECK: This kit is specifically designed for Aprilia RSV4 engine numbers HIGHER than 3413 (Kokusan system). Please verify your engine number before purchase.
Key Features
✔ Kokusan Flywheel: Lower-strength magnets to reduce stator heat.
✔ MOSFET Technology: 50A/500W capacity with advanced heat dissipation.
✔ Steel Capped Magnets: Prevents magnet detachment from high heat or oil additives.
✔ Complete Kit: Includes Stator, Flywheel, Regulator, and Gasket.
Technical Specs
Stator Dimensions:
43mm (ID) / 105mm (OD)
Stator Thickness:
13.8mm
Regulator Output:
50A / 500W
Charging Voltage:
14.5V +/- 0.5V
Flywheel OD:
121mm
Wire Resistance:
0.3 ohms +/- 20%
Compatibility / Fitment Guide
Make
Model
Years
Aprilia
RSV4 1000 Factory / R / RF / RR
2011 - 2018
Aprilia
RSV4 1100 Factory / RR
2019 - 2020
Aprilia
Tuono V4 1000
2011 - 2015
Aprilia
Tuono V4 1100 Factory / RR
2015 - 2020
OEM Cross Reference
2D000049
897479
1A010574
AP8575080
Questions & Answers
Is this a genuine original part?
This is a premium 4Drive / Aftermarket replacement kit engineered to correct the design flaws of the original equipment while maintaining OEM fitment standards.
Why is the MOSFET regulator better?
Unlike standard regulators that "dump" excess power as heat, MOSFET transistors switch more efficiently. This leads to cooler operating temperatures for both the regulator and the stator.
Does this require a special flywheel puller?
Yes, installation requires a specific M36 x 1.5 Right Hand Thread puller suitable for the Kokusan flywheel. We recommend professional installation due to the technical nature of V4 engine timing and balancing.
Visit 4drive.co.uk for more premium Aprilia electrical solutions.
Note: Please verify your original engine number and part dimensions before purchasing to ensure 100% compatibility.
