M4, M4A1, M4A2, M4A3, M4A4, M4A6 M4 (105 mm), M4A3 (105 mm) M4 (76 mm), M4A1 (76 mm) M4A2 (76 mm), M4A3 (76 mm)
Crew Commander, gunner, loader, driver, co-driver/hull gunner Commander, gunner, loader, driver, co-driver/hull gunner Commander, gunner, loader, driver, co-driver/hull gunner
Physical Characteristics      
Weight (lb) M4: 66,500
A1: 66,502
A2: 69,000
A3: 68,500
A4, A6: 71,000		 M4: 66,500
M4A3: 68,500		 M4/A1: 70,000
M4A2: 72,800
M4A3: 71,100
Length w/gun M4: 19' 4"
A1: 19' 2"
A2: 19' 5"
A3: 19' 5 1/2"
A4, A6: 19' 10 1/2"		 M4: 19' 4"
M4A3: 19' 4 1/2"		 M4/A1: 24' 3"
M4A2: 24' 7"
M4A3: 24' 7"
Length w/o gun     M4/A1:20' 4"
M4A2: 20' 8"
M4A3: 20' 7 1/2"
Height 9' 9' 2 11/16" 9' 9"
Width 8' 7" 8' 7" 8' 9 1/2"
Ground clearance M4, A1: 17 1/8"
A4, A6: 15 3/4"		 17 1/8" 17 1/8"
Ground contact length M4, A1, A2, A3: 12' 3"
A4, A6: 13' 6"		 12' 4" 12' 4"
Ground pressure (psi) M4, A1: 13.7
A2: 14.2
A3: 14.1
A4, A6: 13.4		 M4: 13.7
M4A3: 14.1		 M4/A1: 14.4
M4A2: 14.9
M4A3: 14.6
Turret ring diameter      
Armament (mm)      
Main 75 mm M3, L/40 105 mm howitzer M4 76 mm M1A1 or M1A2
Secondary      
MG .50 cal AA
.30 cal coaxial, hull		 .30 MG coaxial, bow
.50 MG AA		 .30 hull, coaxial
.50 AA
Side arms M3 2" Mortar
M2 Tripod mount .30 cal MG
.45 cal submachine gun		 M3 2" Mortar
M2 .30 cal MG Tripod
.45 cal Submachine gun
Grenades		 M3 2" Mortar
M2 .30 cal Tripod MG
5: .45 cal Submachine guns
Grenades
Quantity      
Main M4: 97
A1: 90
A2, A3, A4, A6: 97		 66 71
Secondary      
MG 300
4,750		 4,000
300		 6,250
600
Side arms 12

600		 18

600
12		 18

900
12
Armor Thickness (mm)      
Hull Front, Upper 50 50 63
Hull Front, Lower 38 38 38
Hull Sides, Upper 38 38 38
Hull Sides, Lower 38 38 38
Hull Rear 38 38 38
Hull Top 25 25 19
Hull Bottom 12 12 12
Turret Front 75 75 63
Turret Sides 50 50 63
Turret Rear 50   63
Turret Top 25 25 12
Engine (Make / Model) M4: Continental R-975
A2: GM 6-71 6046
A3: GAA-III V-WC
A4: Chrysler 5-line WC
A6: Caterpillar RD-1820		    
Cylinders M4: 9    
Net HP M4, A1: 353
A2: 375
A3, A6: 450
A4: 370		    
Transmission 5 forward 1 reverse    
Fuel type M4, A1, A3, A4: Gasoline
A2, A6: Diesel		    
Octane M4, A1, A3, A4: 80
A2, A6: 45-50		    
Capacity (gallons) M4, A1: 175
A2: 148
A3: 174
A4, A6: 150		 175 175
M4A2: 148
Performance      
Traverse 360° 360° 360°
Max Speed (mph) M4, A1: 24
A2: 29
A3: 26
A4, A6: 25		 M4: 24
M4A3: 26		 M4/A1: 24
M4A2: 29
M4A3: 26
Cross Country (mph) 15-20    
Road radius (miles) M4: 120
A1: 120
A2: 150
A3: 130
A4, A6: 100		 M4: 120
M4A3: 130		 M4/A1: 85
M4A2/A3: 100
Turning Radius (ft) 62 62  
Elevation Limits +25° to -10° +35° to -10° +25° to -10°
Fording depth (ft) M4: 3'
A3: 3' 4"
A4, A6: 3' 6"		 3' M4/A1: 3'
M4A2: 3' 4"
Trench crossing (ft) M4, A1, A2, A3: 7' 5"
M4, M6: 8'		 7' 5" 7' 6"
Vertical Obstacle (ft) 2' 2' 2'
Suspension (Type) Vertical volute Vertical volute Vertical volute
Wheels each side 6 6 6
Return rollers each side 3 3 3
Track length      
Tires      
Track width 16 1/2"   23"
Track centers/tread 6' 11" 7' 1" 7' 1"
Production
Type
Total*
Dates
Location, Date, Quantity*
M4
6,748
 7/42-1/44 3/1941: Lima, Pressed Steel, and Pacific Car & Foundry
Pressed Steel from July 1942-August 1943: 1,000
Baldwin Jan 1943- Jan 1944: 1,233
American Loco Feb-Dec 1943: 2,150
Pullman May-Sept 1943: 689
Detroit Arsenal Aug 1943 - Jan 1944: 1,676
M4(105)
1,641
 2/44-3/45
M4A1
6,281
 2/42-12/43 Lima Feb 1942 - Sept 1943: 1,655
Pacific Car & Foundry Apr 1942 - Nov 1943: 926
Pressed Steel Mar 1942 - Dec 1943: 3,700
M4A1(76)W
3,426
 1/44-7/45
M4A2
8,053
 4/42-5/44 Fisher/Grand Blanc Apr 1942 - May 1944: 4,614
Pullman Apr 1942 - Sept 1943: 2,737
American Loco Sept 1942 - Apr 1943: 150
Baldwin Oct-Nov 1942: 12
Federal Welder Dec 1942 - Dec 1943: 540
M4A2(76)W
2,915
 5/44-5/45
M4A3
1,690
 6/42-9/43 Ford June 1942 - Sept 1943: 1,690
Grand Blanc Feb 1944 - Mar 1945: 1,381
M4A3(105)
3,039
 5/44-6/45
M4A3(75)W
3,071
 2/44-3/45
M4A3(76)W
4,542
 3/44-4/45
M4A3E2
254
 6/44-7/44
M4A4
7,499
 7/42-11/43 Detroit Arsenal
M4A6
75
 10/43-2/44 Detroit Arsenal
Total
49,234
 2/42-7/45 * The columns may not add up as the information was from 2 different sources