The M26 Pershing was the U.S. Army's late-World War II T26E3 tank, standardized as the M26 in March 1945 and reclassified as a medium tank in May 1946. It replaced Sherman-era compromises with a 90 mm M3 gun, torsion-bar suspension, heavier armor, and a five-person layout, but its Ford GAF powertrain left it underpowered for its weight and the drivetrain-improved M46 Patton carried the layout into the postwar Patton line.
Documented combat service falls in late World War II Europe and the Korean War. The notes below keep that service history distinct from the tank's design and postwar development path.
U.S. Army sources place new M26 Pershing heavy tanks with 3rd Armored Division elements during the late-March 1945 drive toward Paderborn.
Marine Corps and Army accounts document Pershings in early Korean War actions, including Marine M26s landing at Pusan and a 72nd Tank Battalion M26 fight near the Naktong River.
The M26A1 updated the gun installation while the M46 Patton addressed the Pershing's drivetrain limitations and carried the basic layout forward.
Sources: Central Europe; Fire Brigade: U.S. Marines in the Pusan Perimeter; Holding the Tank at Naktong Bulge; AFV Database M26 Pershing.
The Pershing family moved from the combat-deployed T26E3/M26 baseline to postwar M26A1 gun improvements and the limited T26E4 Super Pershing long-gun program.
| Variant | Configuration | Designation notes |
|---|---|---|
| T26E3 / M26 | Baseline production Pershing | T26E3 vehicles deployed to Europe before standardization; the Army standardized the type as M26 in March 1945. |
| M26A1 | Postwar gun and mount upgrade | Accepted from 1948 with the 90 mm M3A1 gun, bore evacuator, lighter single-baffle muzzle brake, M67A1 mount changes, and related travel-lock updates. Sources: AFV Database M26 Pershing |
| T26E4 Super Pershing | Long 90 mm gun variant | Built around the longer T15-series 90 mm gun; 25 T26E4 tanks were accepted after the first pilot vehicle reached Europe. Sources: AFV Database M26 Pershing, T26E4 Pershing Tank |
Weaponsystems.net identifies the Pershing as mounting a 90 mm M3 main gun, paired .30-06 M1919A4 machine guns, and a roof-mounted 12.7 mm M2HB heavy machine gun.
| Carried item | Item type | Carriage evidence |
|---|---|---|
 | Vehicle-mounted medium machine gun | Weaponsystems.net states that the M26 Pershing carried .30-06 M1919A4 machine guns as both coaxial and bow armament. Sources: M26 Pershing | Weaponsystems.net |
 | Roof-mounted heavy machine gun | Weaponsystems.net states that the M26 Pershing mounted a 12.7 mm M2HB heavy machine gun on the turret roof for anti-aircraft use. Sources: M26 Pershing | Weaponsystems.net |
The Pershing lineage grew from the T20 series, an effort to move beyond the M4 Sherman layout with a lower profile, rear drive layout, and heavier armament options.
Sources: The M26 Pershing Tank, AFV Database M26 Pershing
AFV Database records the T26 series as reclassified from medium to heavy tanks on June 29, 1944.
Sources: AFV Database M26 Pershing
AFV Database lists November 1944 as the M26 date of first acceptance.
Sources: AFV Database M26 Pershing
The first 20 T26E3 tanks were issued to the 3rd and 9th Armored Divisions for combat testing in Europe.
Sources: The M26 Pershing Tank
After early combat use, the Army standardized the T26E3 as the M26 and named it for General John J. Pershing.
Sources: The M26 Pershing Tank, AFV Database M26 Pershing
AFV Database says the first T26E4 pilot arrived in Europe with the 90 mm T15E1 gun and later received in-theater applique armor.
Sources: AFV Database M26 Pershing
AFV Database records the Pershing as reclassified as a medium tank in May 1946.
Sources: AFV Database M26 Pershing
The first improved M26A1s were accepted in 1948 with the 90 mm M3A1 gun, bore evacuator, and single-baffle muzzle brake.
Sources: AFV Database M26 Pershing
