The following is a (partial) listing of vehicle model numbers or M-numbers assigned by the United States Army. Some of these designations are also used by other agencies, services, and nationalities, although these various end users usually assign their own nomenclature.
M1 to M99 For non-sequential numbers, like M1 Abrams, see bottom of list. M1 combat car, also known as the M1 light tank M1 light motorcycle M2 light tank, .5" MG or 37 mm gun, 11-ton M2 medium tank M2 combat car (G38), version of M1 with Guiberson diesel engine and trailing idler M3 Lee, (Lee/Grant), 28-ton, 37 mm and 75 mm gun M3 Stuart, 12-ton M4 Sherman, 30-ton, 75/76 mm gun M5 Stuart, M3 derivative with twin Cadillac V8 engines and redesigned hull M6 heavy tank, 60-ton M7 medium tank (G137) M8 armored car (Greyhound) M22 Locust tank, light, airborne, 37 mm gun M24 Chaffee tank, light, 18-ton, 75 mm gun M26 Pershing tank, medium (originally classified as heavy), full-track, 47-ton, 90 mm M26E1 Pershing tank, medium, full-track, 47-ton, 90 mm M26E2 Pershing tank, medium, full-track, 48.5-ton, 90 mm M27 medium tank, Detroit Arsenal M28 cargo carrier (G154); initial version of M29 M29 Weasel carrier, cargo, full-track, 1/2-ton, amphibious (G179) M30 cargo carrier (G158), based on M4 Sherman M31 tank recovery vehicle (M3 Grant) M32 tank recovery vehicle (M4 Sherman) M32A1 recovery vehicle, medium, 16 inch full-track M32A1B1 recovery vehicle, medium, 23 inch full-track (M4A1 chassis) M32A1B2 recovery vehicle, medium, full-track M32A1B3 recovery vehicle, medium, full-track M32B1 recovery vehicle, medium, crane & a-frame, f-t, (M4A1 chassis) M32B2 recovery vehicle, medium, 16 inch track, (M4A4 chassis) M33 tank, prime mover, medium, full-track, 31-ton (G222); based on M31 M34 tank, prime mover, medium, full-track, 31-ton (M32B1 converted) M35 tank, prime mover, turret removed, full-track (M10A1 hull) M39 armored utility vehicle, full-track, converted M18 M41 Walker Bulldog tank, light, 23.5-ton, 76 mm gun M41A1 tank, combat, light, pintle mounted mg, full-track, 76 mm M41A2 tank, combat, light, new turret traverse, full-track, 76 mm M41A3 tank, combat, light, fuel injection engine, full-track, 76 mm M42 flame tank (M4 Sherman) M44 armored personnel carrier M45 medium tank, (G226) M46 Patton tank, combat, medium, full-track, 90 mm, 48.5-ton M46A1 tank, combat, medium, slope side turret, full-track, 90 mm, 48.5-ton M46E1 tank, combat, medium, .30 cal mg fender kit, full-track, 90 mm M47 Patton tank, combat, M46 w/T42 turret, full-track, 90 mm, 48.5-ton M48 Patton tank, combat, full-tracked, 90 mm, 49-ton (1951) M48A1 tank, combat, gun stabilized in elevation and azimuth, 90 mm M48A1E1 tank, combat, full-track, British 105 mm (M48A1 chassis) M48A1E2 tank, combat, full-track, diesel engine, 90 mm M48A2 tank, combat, f-t, fuel injection engine, 90 mm, 50.75-ton (1956) M48A2C tank, combat, improved fire control, full-track, 90 mm M48A2E1 tank, combat, multi-fuel engine, full-track, 90 mm (1959) M48A3 tank, combat, production version of M48A1E2, 90 mm (1960) M48A4 tank, combat, f-t, M60 turret, 105 mm, (M48E3 chassis) (1965) M48C tank, mild steel, 'C' for condemned embossed into right front hull M48E1 tank, first with British gun, full-tracked, 105 mm M48E2 tank, prototype of M48A2 M49 Otter, carrier, cargo/troop, amphibious, full-tracked M51 recovery vehicle, full-track, heavy, 60-ton, 30 mph, 200 mi range M59 armored personnel carrier, full-track, 20-ton, (1955) M59A1 carrier, armored personnel, machine gun cupola, f-t, 20-ton M60 main battle tank, full-tracked, 105 mm gun M60A1 tank, full-tracked, 105 mm gun (1968) M60A1E1 tank, combat, full-tracked, Zenon I/R, Shillelagh, new turret (1965) M60A1E2 tank, combat, full-tracked, stabilized Shillelagh, 152mm M60A1E3 tank, combat, full-tracked, experimental, 105 mm gun (1969) M60A1E4 tank, experimental, f-t, remote controlled 20 mm, 105mm M60A2 tank, full-tracked, remote controlled 20 mm, 152 mm Gun/Launcher (1970) M60A3 tank, combat, full-tracked, laser rangefinder, 900 hp engine, 105mm M60E1 tank, combat, full-tracked, British gun, 105mm M60E2 tank, combat, full-tracked, Shillelagh 152 mm, remote controlled 20m M66 tank, combat, full-tracked, Zenon I/R, Shillelagh 152 mm, M67 tank, combat, full-tracked, flamethrower, range 200 m (M48A1 chassis) M67A1 tank, combat, full-tracked, flamethrower, fuel capacity 378 gal (1961) M67A2 tank, combat, full-tracked, flamethrower (M48A3 chassis) M70 reserved for German/American MBT-70 M74 armored recovery vehicle, medium, full tracked (M4A3E8 chassis) (1952) M75 armored personnel carrier, medium, full-tracked M76 Otter carrier, cargo, amphibious, full-tracked, 1-ton M84 mortar carrier, self-propelled, full-track, 4.2-inch, (1956); derivative of M59 M85 tractor, artillery towing, full-track, 23-ton M88 recovery vehicle, medium, full-tracked, 55-ton, gasoline engine M88A1 recovery vehicle, improved, medium, full-tracked, 55-ton, diesel engine M88A2 recovery vehicle, improved, heavy, full-tracked, 70-ton, diesel
Pre-consecutive "motor carriages" M1 mortar motor carriage 4.2 inch mortar on Cunningham T1E1 cargo carrier. M2 mortar motor carriage (T5E1), (G79) not to be confused with a halftrack M3 Gun Motor Carriage, (T12) M4 mortar motor carriage, (T19) M5 gun motor carriage, (T1), Cletrac M6 gun motor carriage, (T21), M7 howitzer motor carriage, (T32) M8 howitzer motor carriage, (T17E1), Scott M9 gun motor carriage, (T40) M10 gun motor carriage, (T35E1) M11 not used M12 Gun Motor Carriage, (T6) M13 Multiple Gun Motor Carriage M14 multiple gun motor carriage M15 Combination Gun Motor Carriage M16 Multiple Gun Motor Carriage M17 multiple gun motor carriage M18 gun motor carriage (T70) M19 Multiple Gun Motor Carriage (T65E1) M20 ? motor carriage M21 mortar motor carriage M22 ? motor carriage M23 ? motor carriage M24 ? motor carriage M25 ? motor carriage M26 ? motor carriage M27 ? motor carriage M28 ? motor carriage M29 ? motor carriage M30 ? motor carriage M31 ? motor carriage M32 ? motor carriage M33 ? motor carriage M34 gun motor carriage 40 mm halftrack (T160)?? M35 ? motor carriage M36 gun motor carriage (T71E1) M37 105 mm howitzer motor carriage (T76) M38 ? motor carriage (M38 Wolfhound, 37 mm, 6 × 6?) M39 ? motor carriage M40 Gun Motor Carriage M41 howitzer motor carriage M42 gun motor carriage (Duster) M43 Howitzer Motor Carriage M44 self-propelled howitzer (T99) M45 self-propelled ? M46 self-propelled ? M47 self-propelled ? M48 self-propelled ? M49 self-propelled ? M50 self-propelled gun (T165) M51 self-propelled ? M52 self-propelled howitzer (T98) M53 self-propelled howitzer (T97) M54 self-propelled ? M55 self-propelled howitzer M56 self-propelled gun (T101) (Designation jumps to M100 series)
Armored cars M1 armored car (G29) Model T4 Cunningham (1934) M2 unknown M3 unknown M4 unknown M5 armored car (G134) M6 armored car (G122) M7 armored car (G133) M8 armored car (G136) (Greyhound) T22 (M9 halftrack car)? M10 redesignated M20 Armored Utility Car T26 (G176) M38 Wolfhound, 37 mm, 6 × 6
Scout cars M1 scout car (G31) M2 scout car (G32) M3 scout car (G67) M4 scout car (G66)
Half-tracks M1 car, halftrack, (T1E1) 1933, Cadillac 8-cylinder, 115 HP. (33 produced) M2 half-track truck, (T9) (Ford) M2 half-track car, (T14) Autocar, White Motor Co. M3 half-track, Autocar, White Motor Co. M4 81 mm mortar carriage M5 half-track variant of M2 half-track car built by International Harvester M9 half-track car M15 half-track multiple gun carriage built by Autocar M21 mortar carrier, 81mm
Pre-consecutive tractors M1 light tractor M1 medium tractor M1 heavy tractor M2 light tractor M2 medium tractor M2 heavy tractor
Tractor cranes M1 tractor crane, 1-ton, (G108) – International Harvester, T-6 M2 unknown M3 tractor crane, 2-ton, (G69) - Caterpillar D6 M4 tractor crane, 6-ton, (G126) - Caterpillar D7 M5 tractor crane, 2-ton, (G99) - International Harvester T-9
High-speed M1 unknown M2 high-speed tractor (G111) M3 unknown M4 tractor, full-track, high-speed, 18-ton (G150) M4A1 tractor, full-track, high-speed, 18-ton M4A1C tractor, full-track, high-speed, 18-ton M4A2 tractor, full-track, high-speed, 18-ton M4C tractor, full-track, high-speed, 18-ton M5 tractor, full-track, high-speed, 13-ton (G162) M5A1 tractor, full-track, high-speed, 13-ton M5A2 tractor, full-track, high-speed, 13-ton M5A3 tractor, full-track, high-speed, 13-ton M5A4 tractor, full-track, high-speed, 13-ton M6 tractor, full-track, high-speed, 38-ton (G184) M7 snow tractor, search & rescue, half-track (G194) (Allis-Chalmers) M8 tractor (G266) M8A1 tractor, full-track, high-speed M8A2 tractor, full-track, high-speed
Pre-consecutive trucks M1 AA prime mover (Corbitt), (GMC T95), 1931 (G28) M1 -ton, 4 × 2, Bomb service M1 1-ton, 4 × 2, Bomb service, (G85) M1 6-ton, 6 × 6, heavy wrecker, (G116) M1 artillery repair, COE, van, 1 to 3-ton, 4 × 4 (G82) M1 automotive repair, COE, van, 1 to 3-ton, 4 × 4 (G83) M1 Bomb service, (G85) M1 chemical service, GMC CCKW 2½-ton 6×6 truck M1 earth auger, M1 emergency repair (G61) – Dodge WC-41 M1 light machine shop, (G16) M1 small arms repair, COE, van, 1 to 3-ton, 4 × 4 (G72) M1 spare parts, COE, van, 1 to 3-ton, 4 × 4 (G84) M1 tank maintenance, COE, van, 1 to 3-ton, 4 × 4 (G91) M1 heavy wrecking, (G63) M2 artillery repair, COE, van, 1 to 3-ton, 4 × 4 (G82) M2 automotive repair, COE, van, 1 to 3-ton, 4 × 4 (G83) M2 emergency repair (G61) – Dodge WC-60 M2 spare parts, COE, van, 1 to 3-ton, 4 × 4 (G84) M2 tool and bench, COE, van, 1 to 3-ton, 4 × 4 (G58) M2 welding, COE, van, 1 to 3-ton, 4 × 4 (G59) M3 light machine shop, COE, van, 1 to 3-ton, 4 × 4 (G57) M3 welding, COE, van, 1 to 3-ton, 4 × 4 (G59) M4 machine shop, COE, van, 1 to 3-ton, 4 × 4 (G57) M5 unknown M6 1-ton, bomb service truck (G85) M7 small arms repair, GMC CCKW 2½-ton 6×6 truck M8 automotive repair, GMC CCKW 2½-ton 6×6 truck M9 artillery repair, GMC CCKW 2½-ton 6×6 truck M10 instrument repair, GMC CCKW 2½-ton 6×6 truck M11 not used M12 welding, GMC CCKW 2½-ton 6×6 truck M13 tool and bench, GMC CCKW 2½-ton 6×6 truck M14 spare parts, GMC CCKW 2½-ton 6×6 truck M15 unknown M16 machine shop, GMC CCKW 2½-ton 6×6 truck M17 unknown M18 electrical repair, GMC CCKW 2½-ton 6×6 truck M19 tank transporter (G159); M9 trailer and M20 tractor M20 prime mover, 12-ton, Diamond T, (G159) – M19 tank transporter M21 unknown M22 lift, (G161) M23 instrument bench, GMC CCKW 2½-ton 6×6 truck M24 unknown M25 tank transporter, tank transporter/recovery vehicle, nicknamed "Dragon Wagon:. M26 tractor + M15 trailer. Used from 1944 to 1945 M26 tractor, 12-ton, armored cab. Tractor component of the "Dragon Wagon" tank transporter M27 bomb service, GMC CCKW 2½-ton 6×6 truck M28 unknown M29 unknown M30 signal corps repair, GMC CCKW 2½-ton 6×6 truck M31 signal corps repair, GMC CCKW 2½-ton 6×6 truck M32 tire repair, GMC CCKW 2½-ton 6×6 truck M33 unknown M34 truck, cargo, long wheelbase, 11.00×20", 6ea, 6 × 6 (M44 chassis) (G742) – M35 series 2½-ton 6×6 cargo truck M35 truck, cargo, 2-ton, 6 × 6, (G742) – M35 series 2½-ton 6×6 cargo truck M35A1 truck, cargo, 2-ton, 6 × 6 M35A2 truck, cargo, 2-ton, 6 × 6 M35A3 truck, cargo, 2-ton, 6 × 6 M36 truck, cargo, 2-ton, 6 × 6, XLWB (G742) – M35 series 2½-ton 6×6 cargo truck M37 truck, cargo, -ton, 4 × 4 (G741) – Dodge M37 M37B1 truck, cargo, -ton, 4 × 4 (G741) M38 truck, -ton, 4 × 4, Utility, (G740) – Willys M38 M39 truck, chassis, 5-ton, 6 × 6 (G744) – M39 series 5-ton 6×6 truck M40 truck, chassis, 5-ton, 6 × 6 (G744) – M39 series 5-ton 6×6 truck M41 truck, cargo, 5-ton, 6 x 6 (G744) – M39 series 5-ton 6×6 truck M42 truck, command, -ton, 4 × 4 (G741) – Dodge M37 M43 truck, ambulance, -ton, 4 × 4 (G741) – Dodge M37