Direct replacement for the stock shaft

- Six (6) Mounting screw

In general

helicopters and drones requiring a 4-cell battery

Hitec 36845 D845WP D-Series Mega Scale Waterproof Monster Torque Mega Servo 2.2 Tires Direct replacement for the stockHitec 36845 D845WP D Series Mega Scale Waterproof Monster Torque Mega Servo This is the Hitec D845WP Waterproof Monster Torque Mega Servo. FEATURES: Wide voltage DC 3. 5 8. 4V operation Ideal for airplanes, giant scale car, boat, UAV and robotics Programmable high response digital amplifier with MOSFET drive (requires Hitec Servo Saver sold separately) Steel gears with dual ball bearing supported output shaft Center case section is a heat sink