During February of 1943 the Navy asked for to research how to raise the power of Avenger. In response undertook a design study of a better Avenger with a 2000 hp R-2800 motor and a 250CE turret. The popular the engine for other greater priority aircraft prevented the design study from progressing nevertheless the significance of extra motor power for the Avenger ended up being now recognized.
The TBM-3 retained the weapon armed wing regarding the TBF-1C with Mk 5 zero-length rocket launchers standardized rather than the sooner Mk 4 rocket rails. The cockpit instruments were re-arranged and also to improve the pilots evening vision the tool panel lighting was changed from direct ultra violet lighting to indirect red illumination.