page_title: M6 heavy tank
section_title: Variants
hierarchical_section_title: M6 heavy tank / Variants
caption_attribution_description: Image of a US T1E1 heavy tank (World War II era) scanned from TM 9-2800
context_page_description: The Heavy Tank M6 was an American heavy tank designed during World War II. The tank was produced in small numbers and never saw combat.
context_section_description: T1 – Cast hull, hydramatic transmission. Never built.
  T1E1 – Cast hull, General Electric electrical transmission. Standardization proposed as M6A2 but not accepted. 20 units built.
  T1E2 / M6 – Cast hull, torque converter transmission. 8 units built.
  T1E3 / M6A1 – Welded hull, cast turret, torque converter transmission. 12 units built.
  T1E4 – Welded hull, hydramatic transmission. Four GM engines. Cancelled 1942. Never built.
  M6A2E1 – Uparmored T1E1 fitted with a new turret with a T5E1 105 mm gun. Used for testing T29 heavy tank project armament system. Project cancelled at 22 August 1944. 2 units built.
caption: T1E1
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