Savox SW0241MG Waterproof 40kg RC Servo 1/5 HV Metal Gear SAV-SW0241MG

The Savox SW0241MG is a high-voltage waterproof digital RC servo designed for demanding 1/5 scale RC cars, off-road trucks and compatible large-scale boats. Delivering up to 40kg-cm of torque at 7.4V, it combines heavy-duty metal gears, dual ball bearings and a reinforced aluminium and composite case for powerful steering and reliable control. Its large-scale mounting format makes it a practical replacement or upgrade for vehicles requiring a high-torque jumbo servo.

Features

• 40kg High-Torque Output: Produces up to 40kg-cm (555.5oz-in) of torque at 7.4V for demanding steering applications.
• High-Voltage Operation: Supports 6.0V and 7.4V power systems, providing flexibility with compatible receiver and BEC configurations.
• Waterproof Construction: Sealed servo design helps protect internal components during suitable wet and muddy driving conditions.
• Heavy-Duty Metal Gears: Durable gear train is designed to withstand the steering loads of large-scale RC vehicles.
• Digital Servo Control: Electronic positioning provides responsive steering and accurate control from a compatible radio system.
• Aluminium and Composite Case: Reinforced housing combines durability with effective heat dissipation.
• Dual Ball Bearings: Supports smooth output shaft rotation and helps reduce mechanical wear.
• Brushed DC Motor: Proven motor design provides dependable torque delivery for large-scale steering systems.
• 15-Tooth Output Spline: Designed for compatible 15T large-scale servo horns with a 7.8mm spline diameter.
• Large-Scale Compatibility: Suitable for selected 1/5 scale off-road vehicles, large RC boats and other applications requiring a jumbo servo.
• JR-Style Servo Connector: Standard three-wire servo connection for compatible receivers and control systems.

Specifications

• Brand: Savox
• Model: SW0241MG
• SKU: SAV-SW0241MG
• Product Type: Waterproof High-Voltage Digital RC Servo
• Recommended Vehicle Scale: 1/5
• Servo Size: Large / Jumbo
• Control Type: Digital
• Motor Type: Brushed DC
• Operating Voltage: 6.0–7.4V
• Torque at 6.0V: 30.0kg-cm / 416.6oz-in
• Torque at 7.4V: 40.0kg-cm / 555.5oz-in
• Speed at 6.0V: 0.21 Seconds per 60 Degrees
• Speed at 7.4V: 0.17 Seconds per 60 Degrees
• Gear Type: Heavy-Duty Metal
• Bearings: Dual Ball Bearings
• Case: Aluminium and Composite
• Water Protection: Waterproof Case Design
• Output Spline: 15 Tooth
• Output Spline Diameter: Approximately 7.8mm
• Dimensions: 65.8 x 30.0 x 59.1mm
• Weight: Approximately 200g
• Servo Lead Length: Approximately 200mm
• Connector: JR-Style Three-Pin
• Neutral Signal: 1500 Microseconds
• Refresh Rate: 240Hz
• Stall Current at 6.0V: Approximately 4.6A
• Stall Current at 7.4V: Approximately 5.7A
• Operating Temperature: -10°C to 50°C
• Applications: Compatible Large-Scale RC Cars, Trucks and Boats

Includes

• 1 x Savox SW0241MG Waterproof 40kg Digital Metal Gear Servo
• 1 x Supplied Servo Installation Hardware Pack

FAQ

How much torque does the Savox SW0241MG produce? The SW0241MG produces 30kg-cm at 6.0V and up to 40kg-cm at 7.4V. Its corresponding transit speeds are 0.21 and 0.17 seconds per 60 degrees respectively.

Can the SW0241MG run directly from a 2S LiPo battery? The servo is rated for 6.0–7.4V operation. A fully charged 2S LiPo battery reaches 8.4V, which exceeds the published rating. OZRC recommends a suitable regulated BEC set to 7.4V rather than connecting the servo directly to an unregulated 2S LiPo pack.

Will the SW0241MG fit my 1/5 scale RC vehicle? Fitment depends on the servo mounting dimensions, steering linkage, available space and output spline. This is a jumbo servo measuring approximately 65.8 x 30.0 x 59.1mm and uses a 15-tooth output spline, so it is not a direct replacement for every standard-size servo.

What servo horn is required? Use a compatible 15T servo horn designed for the approximately 7.8mm output spline. Standard-size 25T servo horns will not fit.

Is the Savox SW0241MG waterproof? Yes. Savox specifies a waterproof case for this model. However, the receiver, power connections and other electronics must also be protected appropriately for wet conditions.

Important Notes

• This listing is for the original SW0241MG, not the SW0241MG+ version.
• Operating voltage is 6.0–7.4V. Do not supply unregulated 8.4V from a fully charged 2S LiPo battery.
• A high-current BEC or suitable regulated receiver power supply is recommended. Stall current can reach approximately 5.7A at 7.4V.
• Verify the large servo dimensions, mounting arrangement and 15T output spline before purchasing.
• Set steering endpoints correctly to prevent binding and excessive current draw.
• Waterproof servo construction does not make the complete RC vehicle waterproof.
• Confirm the contents of the supplied installation hardware pack against the physical packaging.
• Servo horn, receiver, BEC, power supply and complete RC vehicle are not confirmed as included.