SMR4 Gearbox “5 HP Techtop Motor” has been added to your Cart. View Cart SMR4 Gearbox quantity Request Quote SKU: SMR4-15 Category: Motors & Gearboxes Description Description SMR4-15 Related products SMR3 Gearbox Request Quote 5 HP Techtop Motor Request Quote Helical Bevel Gear Box and Motor portable Request Quote Post navigationPrev SMR3 Gearbox Next 4″ Steel Return Bracket