SURPASS HOBBY CRAWLER 3532/3542 Outer Rotor Brushless Crawler Motor | Upgrade Part for 1/10 RC Crawler DJ005

Product Introduction

• This is the original CRAWLER series sensorless outer rotor brushless motor from SURPASS HOBBY, available in two sizes: 3532 and 3542, specially developed for 1/10 scale RC scale crawlers and rally vehicles. Adopting a 14-pole outer rotor design, it delivers abundant low-speed torque and smooth throttle linearity, compatible with 2S‑3S LiPo batteries. It is an ideal upgrade replacement for stock brushed motors of RC crawlers.

Basic Info

• Brand: SURPASS HOBBY
• Product Type: 3532/3542 Sensorless Outer Rotor Brushless Crawler Motor
• Applicable Motor Type: Outer rotor brushless dedicated crawler motor
• Applicable Vehicle: 1/10 RC Scale Crawler & Rally Car

Available KV Options:

• 3532: 1850KV, 2050KV, 2250KV, 2500KV
• 3542: 1850KV, 2050KV, 2250KV, 2500KV

Physical Dimension & Weight

• 3532 Version
  Outer Diameter: 35mm
  Total Length: 32mm
  Shaft Diameter: 3.175mm (1/8 inch universal industry standard)
  Net Weight: 92~93g
• 3542 Version
  Outer Diameter: 35mm
  Total Length: 42mm
  Shaft Diameter: 3.175mm (1/8 inch universal industry standard)
  Net Weight: 131~140g

Electrical Specifications

• Continuous/Peak Current: Max 45A for 3532; Max 80A for 3542
• Internal Resistance: 3532:0.245~0.382Ω; 3542:0.133~0.185Ω
• Supported Battery: 2S‑3S LiPo Battery
• Cooling Fan: None (Natural cooling via case vent holes)
• Rated Voltage: Compatible with 2S‑3S LiPo Battery
• Max No-load RPM: 30000~40000 RPM

Structure & Material

• Housing: CNC machined 6061 T6 aluminum front & rear case with vented design for improved heat dissipation
• Winding: High-purity high-temperature resistant enameled copper coil for high power conversion and low heat generation
• Output Shaft: High-toughness stainless steel shaft
• Bearing: High-precision durable ball bearings
• Rotor: 14-pole outer rotor magnet for high torque output
• Split detachable structure for easy disassembly, cleaning and maintenance

Product Features

• 14-pole outer rotor construction outputs superior low-end torque versus same-size inner rotor brushless motors for outstanding crawling and obstacle-climbing performance.
• Linear and soft throttle response delivers precise control, perfectly suited for low-speed crawling mode.
• Split removable design allows easy internal cleaning from sand/mud and routine maintenance of coils & bearings.
• Multiple KV ratings and two body sizes available: low KV for rock crawling heavy torque, high KV for faster trail running speed.
• 3.175mm standard output shaft fits stock pinion gears directly; 4×M3 mounting holes for drop-in installation without chassis modification.
• Pre-fitted with un-soldered 4mm gold-plated banana plugs plus heat shrink tubing for flexible custom wiring.

Compatible Models

• Perfect upgrade modification part for all 1/10 scale RC crawlers & rally cars including SCX10, TRX4, Gen8 and other mainstream scale crawler chassis.