This is a replacement Traxxas 2275 High Torque Metal Gear Waterproof Digital Servo.
The ultra-high-torque 2275 digital ball bearing servo provides precise control and maximum torque in a standard-size servo footprint. A fully-waterproof case allows worry-free driving in water, mud, and snow with an aluminum mid section for improved strength and heat dissipation. The 2275 servo offers a significant performance upgrade over standard 2075-series servos with the outstanding durability of all-metal gears and 347 oz-in of torque.
Specifications:
Torque: 347oz-in @ 6.0V
Waterproofing: Sealed case with O-ring
Gears: Metal
Case: Aluminum center w/ full ball bearings
Dimensions: 55 mm H x 45 mm L x 20 mm W