The KST CM3510MG Coreless DC Motor Metal Gear Servo is an IP65 waterproof-rated standard servo for RC rock crawlers, monster trucks, and buggies. KST positions it for tough RC vehicle steering applications that need strong torque and a metal gear train. Verified KST data lists a DC 4.8V-8.4V voltage range, up to 35Kgf.cm torque at 8.4V, and 0.10sec/60deg speed at 8.4V. It uses a coreless DC motor, metal gear construction, potentiometer feedback, and 2 ball bearings. The 40.5 x 20 x 38mm case, 25T 6mm output spline, and IP65 rating make CM3510MG a practical choice for crawler and large RC vehicle steering builds. Product Images Features 35Kgf.cm peak torque - Listed torque reaches 35Kgf.cm at 8.4V. 0.10sec response - Listed speed reaches 0.10sec/60deg at 8.4V. IP65 waterproof rating - KST lists IP65 waterproof protection for this servo. Coreless DC motor - Supports smooth vehicle steering response. Metal gear construction - KST lists metal gear and hardened-steel gear references for this model. CNC aluminum case - Rigid housing for RC vehicle steering loads. 2BB support - Dual ball bearings support the output shaft. 25T 6mm spline - Output shaft spline is listed in the technical PDF. Programmable soft start - KST lists soft start and programmability. Crawler and monster-truck focus - KST positions it for 1/10 crawlers and 1/7 to 1/8 RC vehicles. Specifications Parameter Value Model KST CM3510MG Shopify SKU KST-CM3510MG Rated Voltage DC7.4V Voltage Range DC4.8V-8.4V Torque 20Kgf.cm @ 4.8V; 25Kgf.cm @ 6.0V; 30Kgf.cm @ 7.4V; 35Kgf.cm @ 8.4V Speed 0.20sec/60deg @ 4.8V; 0.15sec/60deg @ 6.0V; 0.13sec/60deg @ 7.4V; 0.10sec/60deg @ 8.4V Start Current 2.10A @ 4.8V; 2.90A @ 6.0V; 3.30A @ 7.4V; 3.65A @ 8.4V Working Frequency 1520us / 333Hz Default Travel Angle +/-50deg = 100deg total Output Shaft Spline 25T, 6mm Case Material Aluminum alloy Motor Type Coreless DC motor Gear Set Material Metal gear Position Sensor Potentiometer Ball Bearing 2BB Waterproof Rating IP65 Case Dimensions 40.5 x 20 x 38mm +/-0.2mm Weight 70g +/-10% Temperature Range -10C to +65C Programmable Yes Reference Documents KST CM3510MG Technical Specification Application 1/10 scale RC rock crawlers - KST positions CM3510MG for crawler steering applications. 1/7 and 1/8 RC trucks or buggies - Suitable for larger RC vehicle builds when torque and fit are verified. RC car steering - Suitable for compatible steering systems after checking case size, spline, torque, and speed. RC crawler builds - Useful where metal gearing and high torque are required for steering load. RC boats and wet models - Applicable only for products with a listed waterproof rating that matches the use case. HV receiver and BEC systems - Works within the listed voltage range when the power supply can handle current draw. Custom PWM motion projects - Can be used in hobby robotics or prototypes after validating duty cycle and cooling. Packing List Description Quantity KST CM3510MG servo 1 Plastic servo horn 3 Servo horn screw 1 Grommet 4 Eyelet 4 Mounting screw 5 FAQ .faq-accordion details { border-bottom: 1px solid #e6eef8; padding: 14px 0; } .faq-accordion summary { list-style: none; cursor: pointer; font-size: 16px; font-weight: 700; color: #1f2933; position: relative; padding-right: 32px; } .faq-accordion summary::-webkit-details-marker { display: none; } .faq-accordion summary::after { content: "\203A"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%) rotate(90deg); color: #007fff; font-size: 28px; line-height: 1; transition: transform 0.2s ease; } .faq-accordion details[open] summary::after { transform: translateY(-50%) rotate(270deg); } .faq-accordion p { margin: 12px 0 0; color: #4b5563; line-height: 1.65; } How does CM3510MG compare with CM5018WP? CM3510MG is rated up to 35Kgf.cm at 8.4V with IP65 protection. CM5018WP is rated up to 50Kgf.cm at 8.4V with IP67 protection, so it targets heavier and wetter applications. Does OpenELAB list multiple Shopify variants for this product? No. The current Shopify product is a single variant with SKU KST-CM3510MG. What is the maximum listed torque? KST lists 35Kgf.cm at 8.4V. What is the fastest listed speed? The fastest listed speed is 0.10sec/60deg at 8.4V. Is it waterproof? Yes. KST lists IP65 waterproof protection for CM3510MG. What spline does it use? The technical PDF lists a 25T, 6mm output shaft spline. What is included in the package? KST lists one CM3510MG servo, three plastic servo horns, one servo horn screw, four grommets, four eyelets, and five mounting screws. What should I check before installation? Confirm case size, 25T 6mm spline, steering load, waterproof requirements, and BEC current capacity.