Polski Fiat 621

Summary

Polski Fiat 621 was a Polish 2.5-tonne truck, the basic lorry of the Polish Army during the 1930s. A licence-built version of the Italian Fiat 621, it was heavily modified to better suit Polish needs and cope with the bad roads in Poland. The undercarriage was produced in two variants: The Polski Fiat 621 L was the basic variant to receive a number of superstructures while the Polski Fiat 621 R was used as the basis for a line of successful buses for the civilian market and heavier, 3-tonne lorries for the army.

Polski Fiat 621
Polski Fiat 621 L carrying tankette TKS.
Overview
ManufacturerPZInż
Also calledFiat 621
Body and chassis
ClassMedium truck
RelatedFiat 621
Powertrain
Engine
  • 2952 cc Fiat 122B (PZInż. 387) petrol I6, 33,9 kW at 2600 rpm
Transmission4-speed manual
Dimensions
Wheelbase3650 mm
Length5780 mm
Width2070 mm
Height2620 mm
Curb weightcca 2350 kg

The modifications to the original Fiat design included:

  • Strengthened undercarriage (frame, front and rear axles)
  • New leaf springs, joints and shock absorbers
  • Wider wheelbase
  • Redesigned mounting of cab doors
  • A Larger fuel tank for both gasoline and diesel versions
  • Cylinder block redesigned and produced of high-quality steel
  • Weber carburettor replaced with a simpler and easier to maintain construction by Solex

Serial production started in 1935 at the Państwowe Zakłady Inżynieryjne Works and lasted until 1939. In 1940 the production was to be replaced with the PZInż 703 family of trucks. Upon the outbreak of World War II and invasion of Poland, all production ceased; those 621s that were not destroyed in the fighting were captured by Nazi Germany or the Soviet Union as the two occupied the country.

An unspecified number were also used by Romanian Army during WW2.[1]

See also edit

References edit

  1. ^ http://amnr.defense.ro/app/webroot/fileslib/upload/files/Revista_Document/Revista_052_2011.pdf Archived 2019-08-01 at the Wayback Machine[bare URL PDF]