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 vehicle. 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.