Arrma Grom 35A Brushless ESC & 4600kV Motor Combo w/ IC2 Connector

The EcoPower 35A Brushless ESC and Motor Combo is a performance-focused upgrade built for durability and control in small-scale RC vehicles such as the ARRMA® Grom series. Designed for 1/14, 1/16, and 1/18 scale platforms, this combo delivers smooth acceleration, consistent throttle response, and reliable power output. Waterproof and dustproof, it's made to handle all-weather conditions while protecting your electronics with multiple built-in safety features. Whether you're upgrading for speed, control, or durability, this combo delivers balanced power and flexibility. The 35A Electronic Speed Control (ESC) is built to handle demanding conditions with its weather-resistant construction. This ESC delivers dependable performance with built-in safety features such as low voltage cut-off, overheat protection, and motor overload protection. The ESC is compatible with 2S and 3S LiPo batteries or four-nine cell NiMH packs, while the IC2 connector ensures compatibility and smooth power delivery across a wide range of setups. The included 4600kV brushless motor features a 4-pole, 12-slot high-torque design that ensures smooth, powerful operation. Built with a CNC-machined aluminum heatsink can, a precision-balanced rotor, and high-purity copper windings, this motor is engineered for maximum energy conversion and efficiency. Additionally, oversized ABEC5 bearings and a 50,000 maximum RPM rating support high-speed performance with reduced wear and increased reliability. For advanced users looking to fine-tune performance, this combo is compatible with the optional EcoPower ESC Program Card (ECP-8021 - sold separately). This program card allows customization of essential settings like low-voltage cut-off, brake and reverse force, and throttle response range, making it a valuable tool for dialing in your setup to match track conditions, battery preferences, or driving style.

Provides 35A continuous current and 120A burst for powerful acceleration

Waterproof and dustproof housing ensures reliable performance in any weather

Compatible with 2S and 3S LiPo or 4-9 cell NiMH batteries for flexible power options

High-efficiency 4600kV motor delivers strong torque and top-end speed

CNC-machined aluminum motor can for improved heat dissipation and durability

Built-in protections guard against overheating, signal loss, and overload

Precision-balanced rotor ensures smooth, stable motor operation

IC2 connector supports secure and efficient power transfer

5.0V BEC output provides steady power

Compatible with optional EcoPower ESC Program Card (ECP-8021) for custom tuning

Suggested Application :: 1/18, 1/16, & 1/14 Bashing

Motor Type :: Brushless - Sensorless

Input Voltage :: 2-3S LiPo (4-9 Cell NiMH)

Continuous Current :: 35A

Burst Current :: 120A

Dimensions (LxWxH) :: 1.57x1.26x0.79in (40x32x20mm)

Weight :: 1.31oz (37g)

Motor Limits

2S LiPo/6 Cell NiMH: :: >6000kV

3S LiPo/9 Cell NiMH: :: >4600kV

BEC Voltage :: 5.0V (2A)

Motor Connector :: 3.5mm Bullets

Battery Connector :: IC2

Programmable :: Yes

Suggested Application :: 1/18, 1/16, & 1/14 Bashing

Type :: Brushless - Sensorless

Turn/kV :: 4600kV

Pole :: 4

Input Voltage :: 2-3S LiPo

Adjustable Timing :: No

Watts :: 400

Connector :: 3.5mm Bullets

Weight :: 0.8oz (22.6g)

Shaft Length :: 0.47in (12mm)

Shaft Diameter :: 0.09in (2.3mm)

*Tech Note: Please uninstall any cooling fans before using the ESC in wet conditions. Clean and dry the ESC and connections soon after use to avoid rust.

**Tech Note: This combo is designed to upgrade your vehicle from the stock 2-in-1 ESC/receiver system. A separately sold ESC/servo mount and receiver will be needed to complete the bundle.

(1) 35A Brushless ESC w/IC2 Connector

(1) 4-Pole Brushless Sensorless Motor (4600kV)

Instruction Manual

(1) Compatible Spektrum™ DSMR® Receiver

(1) ESC/Servo Mount

Brand: EcoPower

MPN: ECP-8020

Added: 2026 - September

Status: Stock

Discount Eligibility: Discount Eligible

SKU: ECP-8020

UPC: 6944850883410

Location: K05-08-01