Robot kits/Complete AR4 MK3, MK4 & MK5 stepper-motor, driver & power supply package
Factory direct
Complete AR4 MK3, MK4 & MK5 stepper-motor, driver & power supply package
$699
Chris does not stock motors. The complete AR4-MK4/5 electric package ships factory-direct from StepperOnline: six precision-gearbox steppers, DM332T/DM320T drivers, and the LYD2409000 power supply. Compatible with MK3, MK4, and MK5.
- J1 17HS15-1684D-EG10-AR4
- J2 23HS22-2804D-YGS50-AR4
- J3 17HS15-1684D-EG50-AR4
- J4 11HS20-0674D-EGS16-AR4
- J5 17E19S1684MB4-200RS-AR4
- J6 14HS11-1004D-EGS20-AR4
- DM332T ×3 and DM320T ×3
- LYD2409000 power supply
AR4 motors and drivers from StepperOnline
Every motor, driver, bracket, and the power supply in the AR4 electric package, with the exact StepperOnline part numbers. Buy the complete package in one click, or buy single parts for a repair or upgrade.

Buy all AR4 motors and drivers
Upgraded AR4 Robot Complete Electric Package AR4-MK4/5 | Stepper Motor, Driver and Power Supply
SKU: AR4-MK4/5
All 11 line items below in one StepperOnline product. Bought separately they total $783.67.

J1 motor, 10:1 gearbox
Nema 17 Stepper Motor with High Precision Gearbox Gear Ratio 10:1 & Magnetic Encoder 1000PPR(4000CPR)
SKU: 17HS15-1684D-EG10-AR4
$91.71Qty per AR4: 1Buy at StepperOnline
J2 motor, 50:1 gearbox
AR4 Upgraded Nema 23 Stepper Motor with YGS Gearbox Gear Ratio 50:1 High Precision Planetary Gearbox
SKU: 23HS22-2804D-YGS50-AR4
$152.52Qty per AR4: 1Buy at StepperOnline
J3 motor, 50:1 gearbox
Nema 17 Stepper Motor with High Precision Gearbox Gear Ratio 50:1 & Magnetic Encoder 1000PPR(4000CPR)
SKU: 17HS15-1684D-EG50-AR4
$101.68Qty per AR4: 1Buy at StepperOnline
J4 motor, 16:1 gearbox
Nema 11 Stepper Motor with High Precision Gearbox Gear Ratio 16:1 & Magnetic Encoder 1000PPR(4000CPR)
SKU: 11HS20-0674D-EGS16-AR4
$106.65Qty per AR4: 1Buy at StepperOnline
J5 linear motor
NEMA 17 External Trapezoidal Linear Stepper Motor 1.68A 48mm Stack w/ Magnetic Encoder 1000PPR(4000CPR)
SKU: 17E19S1684MB4-200RS-AR4
$65.40Qty per AR4: 1Buy at StepperOnline
J6 motor, 20:1 gearbox
Nema 14 Stepper Motor with High Precision Gearbox Gear Ratio 20:1 & Magnetic Encoder 1000PPR(4000CPR)
SKU: 14HS11-1004D-EGS20-AR4
$98.76Qty per AR4: 1Buy at StepperOnline
J1 to J3 driver
Digital Stepper Drive 1.0-3.2A 10-30VDC for Nema 17, 23 Stepper Motor
SKU: DM332T
$16.05Qty per AR4: 3Buy at StepperOnline
J4 to J6 driver
Digital Stepper Driver 0.3-2.2A 10-30VDC for Nema 8, 11, 14, 16, 17 Stepper Motor
SKU: DM320T
$13.75Qty per AR4: 3Buy at StepperOnline
J4 motor bracket
Nema 11 Bracket for Stepper Motor and Geared Stepper Motor Alloy Steel Bracket
SKU: ST-M3
$1.43Qty per AR4: 1Buy at StepperOnline
24 VDC power supply
230W 24V 7.0-9.0A Switching Adapter for AR4 Robot Complete Electric Package
SKU: LYD2409000
$76.12Qty per AR4: 1Buy at StepperOnline
Price at StepperOnline in USD as of October 9, 2026. StepperOnline sets the final price, shipping, and tax at checkout. Product images courtesy of StepperOnline.
