The Northrop BT-1 provided the basis for the SBD, which began manufacture in 1940. It was designed by designers team lead by Ed Heinemann with a 1,000 horsepower Wright Cyclone powerplant. A year earlier, both the U.S. Navy and Marine Corps had placed orders for the new dive bombers, aptly designated the SBD-1 and SBD-2 (the latter had increased fuel capacity and different armament). The former went to the Marine Corps in late 1940, and the latter went to the Navy in early 1941.

The next version, designated SBD-3, began manufacture in early 1941. It provided increased protection, self-sealing fuel tanks, and four machine guns.