Power HD TR-4 Digital Servo (Waterproof) (2.6kg/0.10s/7.4V)

Originally developed as a direct-fit replacement for the Traxxas TRX-4 shift and differential lock servos, the TR-4 has become a popular choice among crawler enthusiasts thanks to its reliability, metal geartrain, and long receiver lead. It is also commonly used in Axial SCX10 III DIG systems and various micro crawler conversions.

Key Features

• Digital servo
• Waterproof design
• Metal geartrain (copper & aluminum)
• High-voltage compatible (4.8–7.4V)
• 25T output spline
• JR connector
• Long 350 mm servo lead
• Lightweight 16 g design
• Ideal for transmission shifting, differential locks, and auxiliary crawler functions

Specifications

• Torque @ 4.8V: 1.8 kg-cm
• Torque @ 6.0V: 2.2 kg-cm
• Torque @ 7.4V: 2.6 kg-cm
• Speed @ 4.8V: 0.15 sec / 60°
• Speed @ 6.0V: 0.12 sec / 60°
• Speed @ 7.4V: 0.10 sec / 60°
• Operating Voltage: 4.8–7.4V DC
• Operating Frequency: 1520 μs / 50 Hz
• Dimensions: 22.5 × 12.5 × 24.0 mm
• Weight: 16 g
• Connector Lead Length: 350 mm
• Operating Temperature: -10°C to +60°C

Suitable Replacement For

• Traxxas TRX2065
• Traxxas TRX2065X
• Traxxas TRX-4 transmission servo
• Traxxas TRX-4 differential lock servo
• Axial SCX10 III DIG servo
• Various micro and mini crawler applications