The Best Prusa I3 Stepper Motor of 2025 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best Prusa I3 Stepper Motor of 2025. Check our ranking below.

2,297 Reviews Scanned

Rank No. #1

FYSETC Prusa i3 MK3 MK3S+ Y-Axis Step Motor NEMA17 42-40 Motor 2 Phase 1.8° Shaft 20mm with 500mm/19.6inch Integrated Connecting Wire for Prus i3 MK2 MK52 MK3S Y Axis 3D Printer Parts or CNC Machine

Great replacement for the Y axis of prusa MK3 MK3S MK3S+ 3d printer accessories or CNC machine.
Adopting high quality motor steel material, is provided with high torque (static moment: 490mN.m) ), low self-inductance reactance, responsive and can avoid system error.Low loss stators have better high speed performance.
Come with an integrated 4 pin connetcing wire, cable length about 500mm/19.6inch.
Size: 42mm X 40mm X 20mm/1.65''x1.57''x0.78'' ,NEMA 17 bipolar 4-wire:Black: A+, Green: A-, Red: B+, Blue: B-
Package listing: 1x Prusa i3 MK3S+ nema 17 Step Motor with integrated cable.

Rank No. #2

FYSETC Prusa i3 MK3 MK3S+ X-Axis Step Motor NEMA17 42-40 Motor 2 Phase 1.8° Shaft 20mm with 350mm/13.7inch Integrated Connecting Wire for Prus i3 MK2 MK52 MK3S X Axis 3D Printer Parts or CNC Machine

Great replacement for the X axis of prusa MK3 MK3S MK3S+ 3d printers.
Adopting high quality motor steel material, is provided with high torque (400mN.m/57.1 oz.in) ), low self-inductance reactance, responsive and can avoid system error.Low loss stators have better high speed performance.
Come with an integrated 4 pin connetcing wire, cable length about 350mm/13.8inch
Size: 42mm X 40mm X 20mm/1.65''x1.57''x0.78'' ,NEMA 17 bipolar 4-wire:Black: A+, Green: A-, Red: B+, Blue: B-
Package listing: 1x Prusa i3 MK3S+ X axis Stepping Motor with integrated cable 350mm.

Rank No. #3

JoyNano Nema 17 Stepper Motor Integrated 300mm T8 Lead Screw Bipolar 1.7A 40N.cm Holding Torque 40mm Body for 3D Printer or CNC Machine

Nema 17 Stepper Motor with Integrated 300mm T8 Lead Screw, much stable than shaft coupling connecting
Each phase draws current 1.68A, allowing for a holding torque of 40Ncm.
Easy to plug: 30cm lead wire with XH2.54 connector,no soldering or peeling works.
Frame size: 42mm*42mm*40mm. With 1.8° step angle (200 steps/revolution)
Precisely machined full metal body, great replacement for the Z axis of prusa i3 3d printers.

Rank No. #4

NEMA 17 Integrated Closed-Loop Stepper Motor,Pulse-Direction Control Interface,Built-in Encoder & Motion Controller & Driver,for CNC,3D Printer,Max0.43Nm,1.7A,24-48VDC (UIM4247PM)

【HIGHLY INTEGRATION】Our motor is features a nema17 (42x42mm) closed-loop integrated smart stepper motor. It includes pulse-direction control interface and comprises a stepper motor, encoder, driver and closed-loop controller.
【EXCELLENT DESIGN】 UIROBOT motor boasts a closed-loop design for high positioning accuracy, rapid response, and speeds of up to 3000 RPM. It delivers a torque of 0.43 N·m and supports a wide voltage input range of 24-48 VDC, with an adjustable phase current of up to 1.7 Amp, PWM constant current. Additionally, it features micro-stepping capabilities with resolutions from 1 to 1/128.
【SELF-COMPENSATION】 These high-precision motors have a high response, and their closed-loop controller can achieve accurate positioning even in stalling situations. The motors can perform step compensation on their own.
【EASY TO OPERATE】 This stepper motor features simple wiring and is easy to install and use. It is suitable for a wide range of applications, including electric CNC router machines, 3D printer kit, engraving kits, PLC training kits, dispensers, automation applications, stripping machines, marking machines, cutting machines, graph plotters, and more. Please refer to the official latest updates for the product user manual, wiring diagram, and compatible software.
【SAFE AND STABLE】 This CNC machine motor features a fully enclosed die-cast aluminum alloy frame, and the logic inputs of the UIM344 controller are all optically isolated. This design provides rugged, durable protection and improves heat dissipation. It operates with minimal vibration and noise at low speeds.

Rank No. #5

FYSETC MK4 Prusa Accessory - Extruder Stepper Motor Replacement - Small Stepping Motor 42-20: 2 Phases 1A 1.8 Degrees 0.19 N.M with Integrated Cable for MK4S XL 3.9 3D Printer E Axis

1. A must-have FDM 3D Printer Part: this small stepper motor is clone, not original, drop-in replacement stock E-axis, compatible with MK4 Prusa - XL - MK3.9 Print head. Come with an integrated cable, length about 60mm / 2.36inch. A perfect clone prusa printer part. Not suitable Prusa I3 MK3S - MK3 - MK2.5S - MK2.5 - MK2S - MK3S+ - MK2 - MINI - MINI+.
2. High-quality Genuine Material: Compared with other nema 17 stepping, this stepper motor has a blackened Shaft surface (with nitriding treatment), which makes it more durable and stable performance while going on a 3d printing project.
3. Compact Design: NEMA 17 bipolar 42x42x20mm/1.65"x1.65"x0.82" , buit-in connecting cable with 4pin MX connector. With high torque, stable output, but low noise.
4. High Step Accuracy: Rated current 1.0A & resistance 7±15%ohms.
5. Package Content: 1pcs 42-20 small extrusion stepper motor with connecting cable. If need nextruder heater block, cartridge thermistor kit, mk4 V6 nozzle adapter, mk52 spring steel sheet 4010 5015 fan cooling or silicone sock, please enter our store.

Rank No. #6

Iverntech NEMA 17 Stepper Motor with Integrated 150mm T8 Lead Screw for RepRap Prusa i3 3D Printers Z Axis or CNC Machine

2mm pitch, 4 starts, 8mm lead
High torque nema 17 stepper motor, 400mN.m/57.1 oz.in, 42mm, 2 phase 4 wires
Come with a brass nut and 1M (39.37") motor wire
NEMA 17 Stepper Motor with Integrated 150mm Tr8x8 Lead Screw, much stable than shaft coupling connecting
Great replacement for the Z axis of prusa i3 3d printers

Rank No. #7

Iverntech NEMA 17 Stepper Motor with Integrated 350mm T8 Lead Screw for RepRap Prusa i3 3D Printers Z Axis or CNC Machine

2mm pitch, 4 starts, 8mm lead
High torque nema 17 stepper motor, 400mN.m/57.1 oz.in, 42mm, 2 phase 4 wires
Come with a brass nut and 1M (39.37") motor wire
NEMA 17 Stepper Motor with Integrated 350mm Tr8x8 Lead Screw, much stable than shaft coupling connecting
Great replacement for the Z axis of prusa i3 3d printers

Rank No. #8

MengQi Nema 17 Stepper Motor Integrated 300mm T8x8 Lead Screw 42x40mm Body with 1M Cable for RepRap Prusa i3 3D Printers Z Axis or CNC Machine

[Specifications]: Body Length: 42x40mm; Step Angle: 1.8 degree; Phase: 2; Rated Current: 1.5A; Shaft Diameter: Φ10mm, Shaft Length: 300mm, 2 phase, 4 wires; Phase Resistance: 1.8Ω; Phase Inductance: 3.8mH; Holding Togque: 400mN.m Min; Rotor Inertia: 57g.cm²; Insulation Class: B(130℃); Motor Weight: 280g Ref
[Includes]: Come with 1PCS 42x42*40*100mm Nema 17 300mm T8x8 lead screw stepper motor, a brass nut with 1m wiring harness for connector.
[Strong Adaptability]: widely utilized across various industrial applications,much stable than shaft coupling connecting
[Quality materials]: NEMA 17 lead screw stepper motor are made of copper and alloy steel as well as advanced insulation materials to ensure good durability and reliability.
We are dedicated in providing the best products and services to customers. If you have any problems, please don’t hesitate to contact us,we will help you solve the problem as soon as possible.

Rank No. #9

MengQi Nema 17 Stepper Motor Integrated 100mm T8x8 Lead Screw 42x40mm Body with 1M Cable for RepRap Prusa i3 3D Printers Z Axis or CNC Machine

[Specifications]: Body Length: 42x40mm; Step Angle: 1.8 degree; Phase: 2; Rated Current: 1.5A; Shaft Diameter: Φ10mm, Shaft Length: 100mm, 2 phase, 4 wires; Phase Resistance: 1.8Ω; Phase Inductance: 3.8mH; Holding Togque: 400mN.m Min; Rotor Inertia: 57g.cm²; Insulation Class: B(130℃); Motor Weight: 280g Ref
[Includes]: Come with 1PCS 42x42*40*100mm Nema 17 100mm T8x8 lead screw stepper motor, a brass nut with 1m wiring harness for connector.
[Strong Adaptability]: widely utilized across various industrial applications,much stable than shaft coupling connecting
[Quality materials]: NEMA 17 lead screw stepper motor are made of copper and alloy steel as well as advanced insulation materials to ensure good durability and reliability.
We are dedicated in providing the best products and services to customers. If you have any problems, please don’t hesitate to contact us,we will help you solve the problem as soon as possible.

Rank No. #10

YEJMKJ Nema 17 Stepper Motor 2 Phase 1.8‌°‌ 0.29Nm(41.07oz·in) High Torque Bipolar 34mm 30Ω 0.4A 4-Wire Shaft 24mm φ5mm 42 Stepper Motor Cable 1M for 3D Printer DIY Robot CNC Machine

Dimensional data: Key dimensions for Nema 17 Stepper Motor include the following. Body size 42x42x33.2mm, (1.66x1.66x1.31in), Installation hole distance 31mm, Shaft length 24±0.5mm, Shaft diameter φ5mm, D-cut length 24mm, incl. Cable 1m, 4-Wire Black (A+) Green (A-) Red (B+) Blue (B-), Weight 226g.
Specifications: Nema 17 Stepper Motor 2 Phase, Step angle 1.8‌dge (200 steps/rev), 0.29Nm (41.07oz·in) Holding torque , Resistance 30Ω, Rated current 0.4A, Rotor inertia approx 41g.cm², Inductance 38mH±20%.
Operational Safety: This Nema17 Step Motor ensures safe and reliable performance, and here are its key safety parameters. Dielectric strength 500V A.C 1 MINUTE; Insulation class(UL) B (130℃) [266°F]; Insulation resistance 100MΩ MIN; Operation ambient temperature 15%RH～95%RH-20℃ ～+50℃ [-4°F～122°F]; Operation ambient humidity ; Temperature rise 80K MAX.
Key Points to Remember: Higher speeds lead to a decrease in torque, with operation recommended at 0–600 RPM. Reducing current lowers both torque and temperature rise, while lower voltage reduces torque (12–24V DC range). The 42mm Stepper Motor is widely used in 3D printers, DIY robots, CNC machines, and more. Its compact design and high torque make it ideal for tough applications.
Precision-Built for Higher Output: Choose our upgraded Nema 17 Step Motor for increased holding torque and remarkably quiet function. Re-engineered steel cores and precision windings minimize noise, contributing to smoother overall system operation with less ambient disruption.

Last update on 2026-04-18 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best Prusa I3 Stepper Motor?

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We provide an Prusa I3 Stepper Motor buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Prusa I3 Stepper Motor currently available on the market.

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Specifications: How powerful they are can be measured.
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The Best Prusa I3 Stepper Motor of 2025 – Reviews & Buying Guide

How Do You Buy The Best Prusa I3 Stepper Motor?

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