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ArtilleryIn service
Self-propelled gun
M108 howitzer is a self-propelled gun originating in United States. It was built by Cadillac Motor Car Division of General Motors Corp. Reported operators include Chile, Uruguay, Paraguay.
Self-propelled gun
United States
1962–1975
Vietnam War
Cadillac Motor Car Division of General Motors Corp
21 t (20 long tons; 20 short tons)
6.11 m (20 ft 1 in)
3.15 m (10 ft 4 in) L/30
3.15 m (10 ft 4 in)
3.28 m (10 ft 9 in)
5
105x372R semi-fixed, semi-fixed cartridge
105 mm caliber
vertical sliding block
- 6 to + 75 degrees
360°
3-4 rounds/min
Conventional: 11.5 km (7 mi)
31.8 mm (1 in)
M103 105 mm howitzer (87 rounds)
.50 caliber (12.7 mm) M2 machine gun
Detroit Diesel turbocharged 8V-71T 8-cylinders 425 hp (300 kW)
torsion-bar
360 km (200 mi)
56 km/h (30 mph)
Chile : Chilean Army 21 M108 VBCL (Véhicule Blindé de Commandement et Liaison) (Former Belgian Army).
Uruguay : National Army of Uruguay 10 M108AP.
Paraguay : Paraguayan Army 6 M108AP
Australia : Lent by US Army for Australian Defense Force during the Vietnam War.
Belgium : Belgian Army : 95, until the 1980s.
Brazil : Brazilian Army 72 M108AP, withdrawn, 10 donated to Uruguay. 6 donated to Paraguay.
Cambodia : Khmer National Army : withdrawn
Spain : Spanish Army : 48, withdrawn
Taiwan : Republic of China Army : 100
Turkey : Turkish Army : 26 M108T withdrawn
United States : US Army withdrawn.
Tunisia : Tunisian Army 48.
The M108 howitzer is an American self-propelled 105 mm howitzer , first introduced in the early 1960s as a replacement for the M52 self-propelled howitzer .
The M108 was powered by a Detroit Diesel turbocharged 8V-71T 8-cylinders 405 hp engine. It used the same hull and turret as the 155 mm M109 self-propelled howitzer , and components of the M113 armored personnel carrier . The M108 was phased out soon after the American intervention in the Vietnam War , as the M109's 155 mm calibre was considered better fitted for modern war.
The M108 howitzer's sole use in combat occurred in the Vietnam War . M108s equipped the first U.S. Army field artillery unit deployed to the conflict, when the 3-6 Field Artillery Battalion was deployed to Pleiku on June 17, 1966. This was soon followed by the 1-40th Field Artillery Battalion to Dong Ha Combat Base in October, 1966. M108s were generally employed from fortified fire bases providing artillery support to units in the field. Because M108 and M109 howitzers could traverse their main gun 360 degrees, unlike towed artillery, they were ideal for holding fire-base positions, which might be subject to attack from any direction. Both M108 battalions were withdrawn and phased out of U.S. Army service in 1975.
Length: 6.11 m
Length: 6.11 m
Width: 3.15 m
Width: 3.15 m
Height: 3.28 m
Height: 3.28 m
Speed: 56 km/h (35 mph)
Range: 360 km
Range: 360 km
Armament: Primary: M103 105 mm howitzer Secondary: .50 caliber (12.7 mm) M2 machine gun
Rate of fire: 4 rounds/min
Rate of fire: 4 rounds/min
Shooting range: 11.5 km (HE) 15 km (HERA)
FV433 Abbot SPG - British 105mm SPG
M108AP Self-propelled artillery United States 6 Supplied from Brazil
M108AP Self-propelled artillery United States 10 Supplied from Brazil
M108 VBCL Armoured utility carrier US 21 They are units that serve for command and control. (Former Belgian Army)
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
True scale
Sourced dimensions beside a 1.75 m human reference.
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Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 3.15 m | Wikipedia contributors | superseded |
M108 howitzer equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Army exact named equipment holdings: M108. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: ARTILLERY / 105mm. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
Army exact named equipment holdings: M-108. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: ARTILLERY / 105mm. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.