Car Tow Dolly Electric Brake Kit $375.00 Electric brake kit for the Premier Car Tow Dolly and Tow MAX Car Tow Dolly. Brakes are sold to function only as breakaway. Customers may add a controller to their tow vehicle, which will require a 5, 6 or 7 pin connector. Our dollies have a 4 pin... Add to Basket Add to Basket