12v all metal gearbox motor assembly – Team SC

37mm Diameter All Metal Gear Box 12v 24v DC Gear Motor with Encoder 7RPM to 1600 rpm Gearmotor motop High Torque Eccentric Shaft - AliExpress

MPS32 MobilePower™ Geared Motor

Metal Gearbox with Reverse Neutral Forward Gears Transmmsion for Modify Toyan Engine Gasoline Model Car - Stirlingkit

12V 360RPM Waterproof Motor 28mm Dc Planetary Plastic Gearbox Motor Brush Mini Plastic Gearmotor For car tail door - AliExpress

Metal Gearbox with Reverse Neutral Forward Gears Transmmsion for Modify Toyan Engine Gasoline Model Car - Stirlingkit

TSC Gearbox (Battenbox) – Team SC

FTVOGUE DC Motor 12V High Torque Worm Geared Motor Brushed Motor Gear Reduction Motor with Encoder Srong Self-Locking (10RPM) : : Tools & Home Improvement

18v all metal gearbox motor assembly – Team SC

MFA 385 Brushed Motor for Model Boats & Gearbox 6:1 Ratio 950D61, Model Shop Leeds

TSC Gearbox (Battenbox) – Team SC

37mm Diameter All Metal Gear Box 12v 24v DC Gear Motor with Encoder 7RPM to 1600 rpm Gearmotor motop High Torque Eccentric Shaft - AliExpress