Power HD WT85 Crawler Aluminium Case Waterproof HV Servo - 70kg 0.10s

The Power HD WT85 (HD-WT85) is a high-voltage, high-torque servo dedicated to crawler use. Housed in an aluminium heat-sink case and sealed to IP67, it combines a steel geartrain, brushless motor and dual ball bearings for strength, efficiency and durability across demanding terrain and weather.

Delivering up to 70.0 kg-cm of torque with a rapid 0.10 s transit time at 8.4V, the WT85 also offers strong performance at 7.4V and 6.0V. Its 6.0–8.4V operating range suits modern HV BECs and radio systems typically found in scale and competition crawler builds.

Key Features

• Aluminium heat-sink case for improved thermal performance
• IP67 waterproof rating for confident use in wet and dusty conditions
• All-steel gears for durability and wear resistance
• Brushless motor for smooth, efficient power delivery
• Dual ball bearings for reduced friction and precise control
• High-voltage operation: 6.0–8.4V

Performance

• Torque: 55.0 kg-cm (6.0V) / 60.0 kg-cm (7.4V) / 70.0 kg-cm (8.4V)
• Speed: 0.15 s (6.0V) / 0.12 s (7.4V) / 0.10 s (8.4V)

Specifications

• Weight: 85 g
• Bearing type: Dual ball bearings
• Motor type: Brushless
• Gear type: Steel
• Size: 40.7 x 20.5 x 38.7 mm

Suggested Compatibility

• 1/10 simulation crawlers
• 1/8 simulation crawlers
• Competition crawlers