Parts/Electric power/Motor & ESC combos/Hobbywing QuicRun 10BL120 G2 Sensorless Brushless ESC/3660SL Motor Combo (3700kV)
Hobbywing QuicRun 10BL120 G2 Sensorless Brushless ESC/3660SL Motor Combo (3700kV)
Hobbywing

Hobbywing QuicRun 10BL120 G2 Sensorless Brushless ESC/3660SL Motor Combo (3700kV)

Part # HWA380302115.0(4)
Where to buy
$99.99
AMain Hobbies
Seen Oct 12, 2026
$99.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

Hobbywing Quicrun 10BL 120A ESC & Motor Combo

The Quicrun 10BL120 G2 Sensorless Brushless ESC and Motor Combo have been designed to deliver extreme power and reliability with a more efficient dust-proof motor and IP-67 waterproof rated ESC. The 10BL's built in capacitor improves on the brownout protection, efficiency, and thermal protection. This combo will be a great option for a wide range of RC models.


Features:

  • G2 QuicRun 10BL120
    • Intelligent freewheeling technology
    • Extreme performance
    • Powerful built-in BEC
    • Efficient cooling system
    • Capacitor Thermal Protection
    • Built-in capacitor
    • IP-67 waterproof Rating
    G2 QuicRun 3660SL
    • High efficiency for more power with lower temperatures!
    • 4-pole rotor design for more torque with strong explosive force.
    • Compared with the previous generation of motors, the output power and efficiency are increased by more than 10%, and the motor temperature is effectively reduced under the same load.
    • 0.2mm thick silicon steel laminations, high strength explosion-proof rotor, high-temperature resistant coil, and imported high-precision and high-quality bearings make the motor super durable.

    Specifications:

    • ESC:
    • Scale: 1/10th
    • Brushed/Brushless: Brushless
    • Sensored/Sensorless: Sensorless
    • Waterproof: IP-67
    • Current:
      • Continuous: 120A
      • Peak: 760A
    • Input Voltage: 2-4S LiPo
    • BEC Output: 6V/7.4V @ 5A
    • Output Connectors: 4.0mm Bullets
    • Dimensions: 2.07x1.56x1.50" (52.8x39.8x38.2mm)
    • Weight: 4.19oz (119g)
    • Motor:
    • Input Voltage: 2S-3S LiPo
    • KV: 3700kV
    • Pole: 4
    • Motor Diameter: 1.42" (36mm)
    • Motor Length: 2.36" (60mm)
    • Shaft Diameter: 0.20" (5mm)
    • Shaft Length: 0.73" (18.5mm)
    • Front Bearing size: D16*D5*T5
    • Rear Bearing size: D13*D5*T4
    • Weight: 273g

    Includes:

  • (1) QuicRun 10BL120 G2 1/10 Sensorless Brushless ESC
  • (1) QuicRun 3660SL G2 Sensorless Brushless Motor (3700kV)

Reviews5.0 · 4 reviews

Ismael MunozVerified owneron Hobbywing QuicRun 10BL120 G2 Sensorless Brushless ESC/3660SL

Great System. I am running it in a slash 2wd and it has been a blast. The gearing that I am using is 32 pitch 16tooth pinion and 54 tooth spur, while using it with a spectrum 30 c 5000mah 3s. The vehicle will do wheelies on demand at maximum punch; however I am running larger tires - Badlands 2.8. I am easily getting over 50+ /- mph but the motor has been running rather warm. Operating temperatures are between 120 to 160 Fahrenheit in 88 degree weather. I would recommend running a 13 tooth pinion instead so the motor will run cooler and have more torque off the line. Also installing a wheelie bar is highly recommended. Cons: the motor cogs at low speeds. I do not know what Hobbywing did but the motor is crazy loud when you turn its shaft. Its sounds like bad gear mesh. Nevertheless, for an $90.00 combo it is beyond my expectations in terms of power output. I would recommend this over the castle creations sidewinder 4 combo just because I felt like the 3652 castle motors run hotter in the slash to achieve a similar power band. However, if you like esc's that run buttery smooth and cold like the sidewinder 4; I will not argue with you, expect for the fact that Hobbywing is IP-67 grade waterproof and does not have a dinky power switch.

11 found this helpful
daniel montenegroVerified owneron Hobbywing QuicRun 10BL120 G2 Sensorless Brushless ESC/3660SL

Exelente motor tiene la potencia suficiente para mi tekno sct410 2.0

1 found this helpful
John LewisVerified owneron Hobbywing QuicRun 10BL120 G2 Sensorless Brushless ESC/3660SL

Huge Upgrade! Put this setup in a Arrma Vortex 550 Mega to replace the brushed system which got wet and died. On a Spektrum 5000mAh 50C 3S battery this thing does over 50 mph! Motor has 5 mm shaft. I put a 17T 32P pinion gear and a 61T metal spur gear (Amazon). Also put 40 mm rocket fan over the motor. I used Arrma Mesh-safe plates to set the pinion gear. Oh you also need a 2 ch receiver. I put tires off a Granite on the back and put the back tires on the front. It’s a BLAST now!! John

1 found this helpful
AntoineVerified owneron Hobbywing QuicRun 10BL120 G2 Sensorless Brushless ESC/3660SL

I only use hobbywing motor and esc because of the quality. I've only had good experiences with them and priced right for my builds. Amain always do a great job at keeping customers coming back.

What reviewers say

All four reviewers give the Hobbywing QuicRun 10BL120 G2 ESC and 3660SL motor combo five stars and describe it as powerful and well suited to their vehicles, including a slash 2WD, a Tekno SCT410 2.0 and an Arrma Vortex 550 Mega. Two reviewers report top speeds above 50 mph on 3S packs. The main recurring issue is motor heat: one owner with a 16T pinion and 54T spur, running larger tires, measured 120–160°F in 88°F weather and recommended a smaller pinion. That owner also reported cogging at low speeds. One reviewer used a rocket fan to help cooling. Reviews are few and mostly from owners of the same variant, so the picture is limited.

  • + Strong power and high top speed
  • + Good quality and reliability
  • + Suitable for several 2WD platforms
  • − Motor runs warm with large gearing and tires
  • − Cogging at low speeds
Summary generated from the reviews above.

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