Savox Waterproof High Voltage Digital Servo 0.14sec / 638oz @ 7.4V - Black Edition

This waterproof, steel-geared servo is perfect for Monster Truck and most Scaler and Crawler applications where a slightly taller servo can be fitted. Precision steel gears, stump-pulling torque, and waterproof to IP67 standards (operates for up to 30 minutes in water up to 3 feet deep).
Features:

Center aluminum with nylon composite top and bottom case
Operates directly on 7.4v without the need for an external BEC
Precision ball bearings
Specifications:

Torque @ 7.4v - 46.0 kg/638 oz-in
Speed @ 7.4v - 0.14 sec/60 deg
Weight: 83g / 3.27oz
Dimensions L x W x H (mm): 40.6 x 20.7 x 46.1