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M113A1*
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Light Support APC*
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he first major upgrade came in 1964 with *
the introduction of the M113A1 package *
which replaced the original gasoline *
engine with a 212 horsepower diesel *
package. One of the most welcome *
improvements made during this period in*
 U.S. units was the conversion of the*
 M113 to the diesel-powered M113A1. A *
main drawback of the M113, the danger* 
of fire, was now reduced. Other free *
world units were scheduled for* 
conversion later. The new power train*
 was soon incorporated into the *
existing vehicle family as the M113A1,*
 M577A1, and M106A1, as well as several*
 new derivative systems. Some of these*
 new derivatives were based on the*
 armored M113 chassis (the M125A1 mortar*
 carrier and M741 "Vulcan" air defense*
 vehicle) while others were based on an*
 unarmored version of the chassis*
 (including the M548 cargo carrier,*
 M667 "Lance" missile carrier, *
and M730 "Chaparral" missile carrier).*
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