FREE Mainland UK Delivery On orders over £99
Click & Collect in store
Ready for the next level of ARRMA RC bashing performance? The ARRMA 3S Brushless BOOST Box upgrade package comes with everything you'll need to increase the speed capabilities of any 4X2 BOOST or MEGA vehicle, including a 3S brushless motor and ESC*.
Introduction Even without upgrades, ARRMA 4X2 BOOST and MEGA brushed RC vehicles are capable of reaching 30+ MPH speeds in optimum conditions and optional gearing. Now imagine what your RC basher can do after you upgrade it to brushless power using the ARRMA 3S Brushless BOOST Box option part package! The ARRMA 3S Brushless BOOST Box is a complete power module that includes a Spektrum Smart 3S ESC, Spektrum brushless motor, heatsink, and cooling fan, along with 15T, 18T, and 20T pinions to suit the different tire diameters of ARRMA 4X2 BOOST and ARRMA MEGA models. The ARRMA 3S Brushless BOOST Box also provides a QR code to an online assembly video that demonstrates simple, step-by-step installation. With ARRMA BOOST option parts, the best beginner's bashers just keep getting better as your skills grow!
The 3S Brushless BOOST Box is the recommended next upgrade for the following ARRMA 4X2 MEGA BOOST basher vehicles after the ARA21003 4X4 Transmission Upgrade Set.
The 3S Brushless BOOST Box is also compatible with all 4X4 MEGA vehicles.
*BOOST Models will require an SLT3 receiver for compatibility (such as Spektrum SLR300).
Lovely quality product, however, despite the description quoting that it's compatible with *ALL* MEGA vehicles, it must only be the V3 line. Ordered this in hopes for a quick easy upgrade to brushless for my Arrma Typhon MEGA V2 and the diff input gear was too long for it to fit properly, very disappointed. But don't let this put you off if you have a V3 MEGA, 4x2 Boost vehicle, or even if you don't mind having to spend a little extra changing out the diffs on a V2 Arrma - this is fantastic value for money in my opinion!
Please provide the details below so we can review and offer a price match where possible.
* The weblink you supply should be of a valid matching UK product that is currently in stock on a UK retail website.
Spektrum SLR300 3CH 2.4Ghz SLT Receiver
G-ARA210005 - Arrma 3S Brushless BOOST Box
Z-ARA311004 - Arrma 21T 0.8Mod Safe-D5 Pinion Gear
Z-ARA310996 - Arrma 13T 0.8Mod Safe-D5 Pinion Gear
Z-ARA330605 - Arrma 1/7 Mojave Front Upper Suspension Arms 87mm (1 Pair)
Z-ARA-2580 - Arrma 1/10 Painted Decaled Trimmed Body Set with Hidden Body Mount, Pink/Black Vorteks 2WD
Modelsport, 26 Gay Lane, Otley, Leeds, West Yorkshire, LS21 1BR
© Modelsport 2026 | Privacy Policy | Terms & Conditions | Contact Us
Finance provided by PayPal Credit. Terms and conditions apply. Credit subject to status, UK residents only, Modelsport Ltd acts as a broker and offers finance from a restricted range of finance providers, PayPal Credit and PayPal Pay in 3 are trading names of PayPal UK Ltd, 5 Fleet Place, London, United Kingdom, EC4M 7RD.