S661 - 7kg servo, Steel/Brass 25T:  SPMS661

S661 - 7kg servo, Steel/Brass 25T: SPMS661

$39.99
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S661 - 7kg servo, Steel/Brass 25T:  SPMS661

S661 - 7kg servo, Steel/Brass 25T: SPMS661

$39.99
Metal Gear Durable 25T Output Spline
High Voltage Operates From 6.0V to 7.4V
Solid Torque Up to 103 oz-in Torque

In Stock

SKU: SPMS661
Part #: 100027846
45+ YEARS IN BUSINESSServing since 1978
REPAIR SERVICESRC Cars, Planes, Boats, Drones & More
AUTHORIZED DEALERGenuine products from top brands
FAST SHIPPINGNext day shipping anywhere in the country.
EASY RETURNSIn-stock items returnable within 30 days
Precision Steering PowerHeavy Duty Servo for ARRMA Vehicles

Upgrade or restore your RC car steering with the official S661 7kg Metal Gear Servo, 25T. Engineered for demanding off-road action, this standard-sized digital servo delivers dependable strength and precise steering control for 1/10 and 1/8 scale RC vehicles. Operating on 6.0V to 7.4V high voltage systems, it provides up to 103 oz-in of torque to keep your model tracking true.

Reliable Digital PerformanceBuilt Tough for Off Road Action

The S661 7kg Metal Gear Servo, 25T is a high-performance replacement steering servo designed to withstand the rigors of heavy RC bashing and racing. Featuring rugged metal gears and an industry-standard 25-tooth output spline, this digital servo ensures precise response and excellent holding power. Whether you are replacing a worn component in your ARRMA GRANITE MEGA or ARRMA TYPHON MEGA or fitting it into a custom chassis, this unit offers the voltage versatility and durability needed for consistent RC car performance.

Technical SpecificationsDetailed Servo Dimensions and Output
Part Type Digital Servo
Compatible Vehicles ARRMA GRANITE MEGA 4X4 (ARA4202V4), ARRMA TYPHON MEGA 4X4 (ARA4206V4) (car)
Spline Count 25-Tooth
Servo Operating Voltage 6.0V - 7.4V HV
Torque @ 6.0V 88 oz/in / 6.37 kg/cm
Torque @ 7.2V 103 oz/in / 7.42 kg/cm
Servo Type Digital
Dimensions 1.58 x 0.79 x 1.55 in (40 x 20 x 39 mm) (ruler)
Weight 0.13 lb
Key Performance FeaturesDurable Design for Maximum Reliability
Metal GearsStrong internal gear train for maximum resistance against wear and stripped gears
25-Tooth SplineStandard 25T output shaft compatible with popular servo horns and savers
High-Voltage CompatibleSupports standard 6.0V to 7.4V HV power setups
Digital PrecisionOffers accurate centering, fast response, and firm holding power
Direct OEM FitSeamless replacement part for select ARRMA 4X4 MEGA scale vehicles
Frequently Asked QuestionsEverything you need to know
What is the output spline count on the S661 7kg Metal Gear Servo, 25T?

The S661 7kg Metal Gear Servo, 25T features an industry-standard 25-tooth (25T) spline, making it compatible with a wide variety of 25T servo horns and servo savers.

Is the S661 7kg Metal Gear Servo, 25T compatible with high voltage (HV) receiver setups?

Yes, the S661 7kg Metal Gear Servo, 25T operates safely between 6.0V and 7.4V (HV), delivering increased speed and torque when powered at higher voltages.

Which RC cars directly fit the S661 7kg Metal Gear Servo, 25T?

The S661 7kg Metal Gear Servo, 25T is a direct replacement servo designed for the ARRMA 1/10 GRANITE MEGA 665 4X4 RTR Monster Truck (ARA4202V4) and the ARRMA 1/8 TYPHON MEGA 665 4X4 RTR Buggy (ARA4206V4).