One of the Last B-26 variants was the B-26F which featured angle-of-incidence of wings increased by 3.5º; the fixed .50 caliber machine gun in the nose was removed; the tail turret and associated armor were improved. The first B-26F was produced in February 1944. One hundred of these were B-26F-1-MAs. Starting with 42-96231, a revised oil cooler was added, along with wing bottom panels redesigned for easier removal. In total, 200 of the 300 aircraft were B-26F-2s and F-6s, all of which were used by the RAF and SAAF as the Marauder Mk III. The F-2 had the Bell M-6 power turret replaced by an M-6A with a flexible canvas cover over the guns. The T-1 bombsight was installed instead of the M-series sight. British bomb fusing and radio equipment were provided (300 built).
The B-26G variant was a B-26F with standardized interior equipment; in total, 150 bombers were used by the RAF as the Marauder Mk III (893 built).