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Product #: 010-0139-10


Sidewinder 8th is our sport 1:8 scale waterproof  ESC that is perfect for entry level, weekend basher, or serious road warriors seeking the benefits of an affordable brushless upgrade.Capable of 2-6S LiPo, with an 8 amp peak BEC the Sidewinder 8 is the perfect upgrade for 1:8 scale buggies, truggies and on-road vehicles as well as 1:10 scale monster trucks weighing up to 11 lbs. It can also work as a great upgrade for some 4WD short course trucks for 3s or 4s operation.


Package Includes:

  • Sidewinder 8 ESC
  • User Guide and Quick Start Guide
  • Castle decals

Sidewinder 8 Quick Start Guide
Sidewinder 8 Driver's Guide
  • USD $129.95 /EA
  • List Price: USD $158.95 /EA
Code Availability Quantity
010-0139-10 This item is in stock. EA
Technical Specs
Input Voltage Range: MIN: 2S LiPo
MAX: 6S LiPo (25.2V)
BEC Specifications: 5.5V fixed, 8A peak
Operating Environment: Waterproof* design allows for use in nearly any environment.
Brake: Proportional
Reversible: Yes, but may be disabled for racing.
On/Off Switch: No
Cooling Fan: Yes, factory equipped (30mm), fully removable** (see Product Use Statements below)
Size: Length: 2.45" (62.2mm)
Width: 2.20" (56.0mm)
Height: 1.33" (34.0mm)
Weight (with no battery connector): 3.52 oz. (100g)
Connectors: 6.5mm female bullets for motor connection.
Items Needed for Operation: Battery Connector required, 6.5mm Castle Connectors are recommended.
Product Use Statements:

*Although Sidewinder 8 is waterproof, it is not intended for operation while completely submerged in liquid. Always rinse the ESC and motor with clean water after exposure to corrosives or dirt. While the motor and controller may be waterproof, we suggest users confirm that the rest of their vehicle, including the batteries, servos, radio and chassis are also waterproof before exposing them to liquids of any kind.

**The cooling fan must be removed prior to driving in wet conditions. It is not waterproof.

Application Guidelines: Intended for up to 6S (25.2 Volt) operation in vehicles weighing less than 11 lbs, with batteries, ready-to-run.
Recommended Motors: Castle 15xx series motors, 1415-2400kv (Bullet connector change from 4mm to 6.5mm required)
Max. Recommended Vehicle Weight: Up to 11 lbs, with batteries, ready-to-run with batteries
Programmability: Fully programmable Castle feature set using Castle Link USB adapter (purchased separately) and freely downloadable Castle Link Windows software, a Field Programmer (sold separately) or the Castle Link iOS App and a B-Link Bluetooth Adapter (sold separately).
Telemetry Link Capable: No
Tech Notes:

    Sidewinder 8 Quick Start Guide
    Sidewinder 8 Driver's Guide

    For support, frequently asked questions, technical documents, and more, visit our support site.

    Castle Creations, Inc. warrants this product to be free from manufacturing defects for a period of one year from date of purchase.

    This is a high power product with the potential to be very dangerous. Please read the safety information before use. This product may contain chemicals known to the State of California to cause cancer and or birth defects or other reproductive harm.

    U.S. Patent # 7400103, 7492122, 7579796, 7740516, 8287328, 8678875, and 8905814 B2 - Other patents pending.

    Controller designed, and circuit boards manufactured, in Olathe, Kansas USA.
    Controller assembled in Olathe, Kansas USA.

    Castle Link Compatible
    With the optional Castle Link USB Programming Kit you can use your Windows™ PC to easily program your controller. Adjustable settings include:

    • Throttle curve
    • Braking curve
    • Drag brake
    • Auto LiPo cutoff
    • Punch Control
    • Reverse Type
    • Motor Type

    Additional Castle Link benefits include:

    • Access to all firmware updates, including added features sets released from Castle Engineering, at no charge.
    • Intuitive Demo Mode capability.
    • Ability to save setup profiles for later use.

      Click here to see the Sidewinder 8 Castle Link Settings Overview.

        Optional Accessories
        B-Link Bluetooth Adapter supports iOS and Android App
        011-0119-00 Castle Link V3 USB Programming Kit
        010-0004-00 CCBEC 10A Peak 25V Max BEC
        Castle Link Quick Connect (or Quick Connect Duo)
        Quick Field Programmer, Surface Version
        6.5mm Polarized Connectors-Male/Female Single Pk
        6.5mm Polarized Connectors-Male Multi-Pack
        Polarized Castle Connectors - 6.5mm Female Multi-Pack
        CC BULLET 6.5MM
        6.5mm Male/Female Connector Set (3ea)
        CC BULLET 8.0MM
        8.0mm Male/Female Connector Set (3ea)
        CC BEC 2.0 15A Max Ouput, 14S (58.8 Volts), Waterproof
        Castle Capacitor Pack, 8S MAX (35V)

        Service Parts
        011-0097-00 Receiver Wire, Sidewinder 8, 24AWG                                  
        011-0101-00 ESC Cooling Fan, Sidewinder 8

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