SKU: 966657937

Stator + Kokusan Flywheel Kit Assorted Aprilia Models (RMS900-103848)

Sale price$423.00 Regular price$470.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Stator + Kokusan Flywheel Kit Assorted Aprilia Models (RMS900-103848)Introducing our newest heavy duty recall type charging system upgrade kit for Aprilia 2009 2020 RSV4 & 2011 2020 Tuono V4. Anyone who rides or repairs Aprilias motorcycles is probably familiar with the stator, flywheel, and sometimes voltage regulator issues common to these models. Most of these bikes will have had at least one stator fail in their lifetime so far. The main problem was extremely strong magnets were used on the original flywheels,

Introducing our newest heavy-duty recall-type charging system upgrade kit for Aprilia 2009-2020 RSV4 & 2011-2020 Tuono V4.

Anyone who rides or repairs Aprilia’s motorcycles is probably familiar with the stator, flywheel, and sometimes voltage regulator issues common to these models. Most of these bikes will have had at least one stator fail in their lifetime so far. The main problem was extremely strong magnets were used on the original flywheels, creating a very high power stator output, which generated excessive heat. This usually resulted in burned-up, or shorted stator winding, and often in a failed voltage regulator.

The solution was a new flywheel from Kokusan with lower strength magnets, dropping the stator output and heat generation. This results in a charging system output perfectly matched for the bike’s electronic needs and long-term reliability of the stator and voltage regulator.

To prevent or correct the flywheel problems, our engineers at RMS Labs have come up with a complete reliable heavy-duty charging system replacement kit for your Aprilia. Upgrade today if you haven’t already!

Included in this kit

  • Heavy-duty Kokusan brand recall-type OEM flywheel
  • Triple-tested heavy-duty stator
  • Flywheel puller

With this kit, you will be able to upgrade your current failure-prone charging system with a heavy-duty version using the latest technologies

Features:

Kokusan upgrade/recall type flywheel

Lower-strength magnets for correct stator output, low heat generation, and long-term reliability.

Built to OEM size

Fits precisely in your ride: install it and forget it.

Improved epoxy

Uses high-temperature epoxy that is stronger than OEM, eliminating the possibility of magnet detachment

High-grade steel capping

Prevents harsh additives in motor oil from degrading the epoxy attaching the magnets. Though extremely unlikely, if a magnet did ever come loose, it would remain in the sleeve preventing contact with the stator.

Precise balancing

Eliminates crankshaft vibrations for longer engine longevity.

Shop with confidence

All products are tested.

Don't waste time with temporary solutions, and start fixing your ride like a pro!

Stator Dimensions
Interior diameter: 43 mm
Exterior diameter: 105 mm
Thickness: 13.8 mm
Length of wires stator to grommet: 125 mm
Length of wires grommet to plug: 320 mm

Other specifications:
Number of wires: 3
Number of plugs: 1
Number of pins: 3

Wire to wire resistance :
Alternator : Between each Yellow = 0.3 ohms +-20%

Flywheel Dimensions
Exterior Diameter: 121 mm
Interior Diameter: 107 mm
Interior Diameter Center Housing: 19mm
Exterior Diameter Center Housing: 33 mm
Thickness (exterior): 35.3 mm
Thickness (interior): 30.65 mm

Flywheel Puller Specifications
36 mm x 1.5 right-hand male
Length: 60 mm
Exterior Diameter: 48 mm
Interior Diameter: 35 mm
Exterior Diameter Center Housing: 37 mm

Please note: There are two possible kits for RSV4 engine. This kit ONLY fits RSV4 engine numbers HIGHER than 3413 with KOKUSAN flywheels. Please compare our flywheel to your original.

If your RSV4 engine number is LOWER than 3413, your motor uses the Mitsubishi flywheel and will need Stator Assembly 857201. Refer to kit RMS900-104929.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 966657937

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 2172 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Just Me
Charlottesville, US
★★★★★ 5
Room Divider That Gives Instant “This Is a Separate Space Now” Energy
Size: 3 Panel 12FT W
The Siebwin 3 Panel Folding Privacy Screen is surprisingly effective at changing the feel of a room without requiring construction, commitment, or somebody yelling about load bearing walls. The 12 foot width gives a substantial amount of coverage, making it useful for creating privacy, dividing open areas, blocking visual clutter, or setting up temporary sections within larger rooms. This saved us a ton of time and money in our new studio and enabled us to create a kitchen and office in one room. The wider feet make a huge difference because flimsy room dividers that collapse every time someone exhales too aggressively are deeply annoying. This one feels more stable and grounded once positioned. The folding design makes it easy to move around or adjust depending on the space, and it folds down relatively compactly when not in use. It is basically the introvert curtain wall of dreams. The material has a clean, neutral look that blends well into different room styles without screaming “temporary office cubicle panic.” It works well for apartments, studios, shared spaces, dressing areas, or simply hiding the mountain of chaos you swear you are going to organize tomorrow. Practical, portable, and refreshingly easy to use without turning setup into a three hour emotional event.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
S
Skeetre
Battle Creek, US
★★★★★ 4
It's 2 panels holding 1 big privacy screen. Can't use as 2 separate 4' panels, but works great.
Size: 2 Panel 8FT W
This 2 panel privacy screen works well. Assembly was very straight forward, with easily labeled tubes. My son and I had it together in about 10 minutes, which was probably 3 minutes of me telling him to quit playing around and hand me the parts. It feels very sturdy, not likely to fall over or anything. The material fits well, with the Velcro being very strong. Measurements are all very accurate, with all pieces attaching properly. We have a similar privacy screen at work that we have to try and stretch out because the top and bottom Velcro doesn't fit quite right... this model does not have any issues though. The material is thin and light weight, but solid black so that you can't see anything through or behind it. I definitely think it's a great deal for the money. What I think would have given it 5 stars though, is if you had 2 totally separate 4' panels instead of 2 panels with one big screen. It really wouldn't cost any extra to make it so that the screen was in 2 pieces and you could use it as 2 separate panels instead of having to use it as one big panel. It says 2 panel folding privacy screens, but it's really one big one that folds in the middle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
E
Verified Purchase
Edith Mastrianni
Draper, US
★★★★★ 5
8 panel Room Divider is excellent quality
The GoFlame 8 Panel Room Divider is made with excellent material and the seller of this Divider is totally customer friendly. I highly recommend this company and this Divider if you are shopping for a room divider.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
J
Verified Purchase
✧˖° Jeanne Lee ✧˖°
Pawtucket, US
★★★★★ 5
A Versatile and Elegant Solution for Room Separation
I recently purchased the GOFLAME 8 Panel Room Divider, and I'm thoroughly impressed with its quality and design. This room divider is not only a decorative element, but it also provides a practical solution for creating distinct areas within a room. Here's why I'm giving it a 5-star review: Enhanced Privacy Space: The 6 ft tall room divider is perfect for creating a private space within a larger room. It's ideal for my home office, and I can use it to separate my workspace from the rest of the room. The screen also creates a cozy and intimate atmosphere, making it perfect for relaxing or reading. Hand-woven Texture: The unique hand-woven texture of the room divider adds an element of sophistication and warmth to my room. The intricate craftsmanship is impressive, and it exudes artisanal charm. I love the way it looks, and it's become a conversation piece in my home. Built with Strength: The solid wood frame is sturdy and well-constructed, providing reliable support for the room divider. I'm impressed by the attention to detail and the quality of the materials used. Foldable Design and Easy Storage: The foldable design of the room divider makes it easy to store when not in use. I can simply fold the panels flat and store them away, which is convenient and space-saving. The metal hinges that connect the panels are also sturdy and well-made. No Assembly Required: I was pleasantly surprised to find that the room divider requires no assembly. I simply took it out of the box and set it up, and it was ready to use. The smooth woven surface is also easy to clean and maintain. Overall Impression: I'm thoroughly impressed with the GOFLAME 8 Panel Room Divider. It's a stylish and functional solution for creating a private space within a larger room. The hand-woven texture and solid wood frame add an element of sophistication and warmth, and the foldable design makes it easy to store. I
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2024
B
Verified Purchase
Beverly D Clark
Omaha, US
★★★★★ 5
Quality product !
This is a quality lightweight room divider.! Actually is the second one of this type that I have bought. If you have an area that you just want to close off from the rest of the room, these work perfect!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2025

recommand products