Tekin's PRO4 HD Motor raises the bar in offroad power. The PRO4 HD's longer 550 can and 4-pole design provide performance gains across the board and off the charts when compared to standard 1:10th scale motors. The PRO4 HD has the torque and power to level the competition. Designed with kV options for use with 2S, 3S and 4S power systems, 1:10th 4WD Short Course has never had this kind of power! Combine the Pro4 HD with an RX8 GEN3 ESC in your 4WD Short Course and hold on!


Voltage Limit: 4300kV - 2S LiPo

                         3500kV - 3S LiPo

                         2500kV - 4S LiPo

                         1850kV - 4S LiPo

Weight: 7.8oz / 221g

Shaft Dimensions: 5mm (.196") x 15.3mm

Motor Diameter: 35.85mm / 1.40"

Motor Length: 62.5mm / 2.50"
Max Operating Temperature: 180°F / 82°C
Max RPM: 65,000

Bearing Dimensions: Front: 5 x 14 x 5mm

                                     Rear: 5 x 11 x 5mm

Rotor Size: 18.5mm

Rebuildable: Yes

Mounting Pattern: M3 @ 25.4mm / 1"
                                M4 @ 25.4mm / 1"




1:10 4WD Short Course

1:10 4WD Rock Racer


4 Pole 12 Slot High Torque Motor Design

1:10 4WD Short Course Specific

HD 550 Size Design Increases Power and Torque

CNC Machined 6061-T6 Billet Aluminum Heat Sink Can

Neodymium Sintered Magnets

Precision Engineered for Maximum Energy Conversion

High Purity Copper Windings Maximize Conductivity and Efficiency

Low Resistance, High Power Solder Tabs

Dual-Plug Sensor Wire Harness for all Sensored and Sensorless systems

Anodized End-bell plates maximize corrosion and wear resistance

High RPM ABEC-5 Precision Bearings

Oversized Front Bearing adds Durability

Rebuild-able Design




TT2518 - PRO4 HD 4300kV

TT2519 - PRO4 HD 3500kV

TT2520 - PRO4 HD 3000kV

TT2521 - PRO4 HD 2500kV

TT2522 - PRO4 HD 1850kV




TT2523 - PRO4 HD Rebuild Kit:

End Caps / Bearings / Solder Tabs / Isolator / Hardware


TT2524 - PRO4 HD End Caps / Hardware

TT2526 - PRO4 HD Sensor PCB

TT2527 - PRO4 HD Solder Tabs / Isolator



TT2525 - PRO4 HD Bearing Set - Front: 5 x 14 x 5mm

                                                         Rear: 5 x 11 x 5mm






TT2528 - PRO4 HD Rotor 5mm Shaft




TT3835 - FlatWire 100mm Ribbon Sensor Cable

TT3836 - FlatWire 150mm Ribbon Sensor Cable

TT3837 - FlatWire 200mm Ribbon Sensor Cable

TT3838 - FlexWire 100mm Sleeved Sensor Cable

TT3839 - FlexWire 150mm Sleeved Sensor Cable

TT3840 - FlexWire 200mm Sleeved Sensor Cable

TT3841 - FlexWire 275mm Sleeved Sensor Cable




TT3009 - FlexWire 12awg Pink 3ft

TT3012 - FlexWire 12awg Red 3ft

TT3013 - FlexWire 12awg Black 3ft

TT3014 - FlexWire 12awg White 3ft

TT3015 - FlexWire 12awg Red 50ft

TT3016 - FlexWire 12awg Black 50ft

TT3017 - FlexWire 12awg White 50ft

TT3018 - FlexWire 12awg Pink 50ft



TT1451 - HotWire 2.0
TT1452 - HotWire 3.0 BLE




We guarantee our motors to be free from manufacturer defects for 180 days from date of purchase. All items are tested in a controlled environment prior to the packaging process to ensure you receive a top quality Tekin product. We strive to provide the highest grade professional components possible and we appreciate and treat every Tekin user as part of our family. We are RC enthusiasts designing and manufacturing quality products to give our fellow RC enthusiasts the best hobby experience possible.


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