Hot Racing Arrma Kraton/Outcast Aluminum Diff Locker Spool

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The Hot Racing Arrma Kraton/Outcast Aluminum Diff Locker Spool is an upgrade for Arrma Kraton BLX, Outcast BLX, Senton BLX, Talion BLX, and Typhon BLX models. It can be installed in the front, center, or rear differential, and is recommended for off-road use only.


  • CNC machined solid aluminum, anodized red
  • Cross-drilled to reduce rotating mass and increase acceleration
  • Allows for better acceleration and climbing
  • Fits the front, center, or rear
  • Replaces differential spider and side gears (Arrma AR310436)
Overall length: 18mm
Diameter: 15.9mm

Known to fit the following Arrma vehicle numbers. Please check your vehicle's literature for the vehicle number. If a vehicle is marked as "optional", this indicates that the part and/or vehicle may require modification for proper fit.
  • Kraton: AR106005, AR106015, AR106018, AR106029, AR106031
  • Outcast: AR106021, AR106027, AR106032, AR106033
  • Senton: AR106007, AR102654, AR102673
  • Talion: AR106003, AR106014, AR106030
  • Typhon: AR106001, AR106013, AR106028

This product was added to our catalog on May 28, 2018