DUM-4 holding out a thrust cone to Gasgano. Thrust cones, also known as thrust stabilizer cones, were components shaped like cones. These were positioned at the rear of a podracer's engines.
On one occasion, the pilot named Gasgano agreed to give DUM-4 a power plug. In return, DUM-4 would provide Gasgano with a thrust cone originating from Sebulba's podracer pit, located in Mos Espa Grand Arena.