Kadee 747 O Scale Type E Medium Underset Metal Couplers with Plastic Gear Boxes Bumper - Rear and high speed setting

and high speed setting

3oz Transparent Candy Apple Red

So we can only tell you that RC4WD tires and wheels work together

The Self-Centering Action allows the trucks to self align parallel with the car for easier placement on track

Kadee 747 O Scale Type E Medium Underset Metal Couplers with Plastic Gear Boxes Bumper - Rear and high speed settingKadee 747 O Scale Type E Medium Underset Metal Couplers with Plastic Gear Boxes This industry leading coupler features New Generation AAR Type "E" "Prototype" Head Medium Overset Metal Couplers, and #850 O Scale centering spring and comes complete with Plastic Gearboxes and lids. The #747 Metal Coupler may be mounted with the included #817 Plastic Gearbox or #818 Metal Gearbox (sold separately), #819 Extended Metal Gearbox (sold separately). It is not