{"product_id":"prusa-accessory-extruder-stepper-motor-replacement","title":"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","description":"\u003cdiv\u003ePrusa MK4S E-Axis 42-20 Stepper Motor with Integrated Cable\u003cbr\u003e\n✔️ 2-phase 1A, 1.8° step, 0.19 N m torque, integrated 60 mm cable \u003cp\u003eThis compact extruder stepper motor is a drop-in replacement for the E-axis on MK4 Prusa XL printers, delivering reliable, precise extrusion for hobbyist and professional 3D printing projects.\u003c\/p\u003e ✅ Size: 42x42x20 mm (1.65x1.65x0.82 in), 5 mm shaft, D-shaped \u003cbr\u003e\n✅ Type: NEMA 17 bipolar two-phase with 1A rated current and solid holding torque \u003cbr\u003e\n✅ Step angle: 1.8 degrees for fine extrusion control \u003cbr\u003e\n✅ Torque: holding torque ≥0.19 N m, stable output with low noise \u003cbr\u003e\n✅ Cable: integrated 60 mm wire with 4-pin MX connector \u003cbr\u003e\n✅ Compatibility: MK4 Prusa XL MK3.9 E-axis only, not X\/Y axes \u003cbr\u003e\n✅ Package: 1 piece \u003cbr\u003e \u003cp\u003e💡 What is an extruder stepper motor used for in a 3D printer?\u003c\/p\u003e\n\u003cp\u003eThe extruder motor drives the filament forward, providing precise control of material flow for consistent prints.\u003c\/p\u003e\n- extruder motor powers filament feed with precise step control\n- helps prevent under- or over-extrusion by maintaining accurate feed\n- integrated wiring simplifies installation on MK4S E-axis\n- ideal upgrade for Prusa MK4\/MK4S XL systems to improve reliability\u003c\/div\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52260228530495,"sku":"VXB0D1VV96TV","price":57.09,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/nema17-stepper-motor-integrated-cable.jpg?v=1772829342","url":"https:\/\/bearingscanada.com\/products\/prusa-accessory-extruder-stepper-motor-replacement","provider":"Bearings Canada","version":"1.0","type":"link"}