S6040 Digital Surface Servo - High Speed

Spektrum - Item No. SPMSS6040
5 out of 5 Customer Rating
S6240 Standard Digital High Speed Waterproof Metal Gear Surface Servo
S6240 Standard Digital High Speed Waterproof Metal Gear Surface Servo
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Key Features

  • Ultra fast 0.08 second transit time with 166 oz-in of torque at 6.0V
  • Precise digital control
  • Coreless motor for extended motor life and provides smoother operation
  • Dual ball bearings provide less resistance for higher performance and longer life
  • Z connectors are compatible with JR® and Spektrum™ receivers
  • 8-inch 22 gauge wire
  • Titanium gears for maximum durability and reliability
  • Overload protection
  • Mounting lug height optimized for surface applications


The S6040 servo combines the impressive ultra fast .08-second transit time with 167 ounces of torque and titanium gears. The coreless motor allows for extended motor life and a smoother operation.  This performance, along with the smooth precision of its dual ball-bearing output shaft and titanium gears, makes it the ultimate upgrade*.  Along with the Z connectors, the S6040 servo allows for compatibility with JR® and Spektrum™ receivers.

*This servo is not recommended for 1/8-scale off-road applications.

Detailed Information

Click Here to see Spektrum's Servo Reference Chart


Servo Size Category
Maximum Servo Torque
133 oz-in (9.6 kg-cm) @ 4.8V; 167 oz-in (12 kg-cm) @ 6.0V
Servo Type
Servo Operating Voltage
4.8 - 6.0V
Max Servo Torque
100-199 oz-in
Bushing Or Bearing
Gear Type
Maximum Servo Speed
0.10 sec/60 deg @ 4.8V; 0.08 sec/60 deg @ 6.0V