Toyota G1

Zaheer May 31, 2011 0

The Toyota G1 was considered as the first ever truck built by the company. The 20 feet (6 meter) long truck had the ability to carry 1.5 tons of weight. It was roughly based on similar class trucks made by Ford and GM.

Over the time, as the technology advanced, a series of similar trucks came after it. In 1947, the whole series of G1 trucks was substituted by BM truck.


It was Kiichiro Toyoda’s heartily desire to manufacture automobiles. He took an initiative in the form for A1 passenger car in 1935, but unfortunately, the Japan’s declining economical conditions put the sales of A1 behind the scenes. However, the company kept on working the A1 but with different approach, i.e. the focus was now shifted from passenger car to truck using the same engine and rather extended chassis.

It was not easy to put the G1 in production for the company. The sole financial resource was the parent company, Toyoda Automatic Loom Works. Huge amount of loans were required to formally put the G1 into production.

In the beginning, the G1 was marketed as Toyoda, but later it was renamed as Toyota when the company was about to launch the GA as successor to the G1.


In August 1935, the company finally designed the prototypes of the G1 and revealed to the public in November 1935. In December 1935, it was finally offered for sale.


The G1 was powered by the 3389 cc Type A 6-cylinder engine used in A1 and AA passenger cars as well. The engine produced an output of 62 hp (46 kW).

The G1 featured a single solid axle housing 2 single wheels at the front whereas single solid axle housing with 2 pairs of double wheels used at the rear.


GA was similar to G1 with minor changes.

Dates and Production Figures

In September 1936, the G1 was replaced by the newly launched GA truck.


GA shared the mechanicals with G1.


GB was an updated version of GA.

Dates and Production Figures

Total of 19870 units were produced from 1938 to 1942.


It shared the same mechanicals with G1 and GA.


KB was an updated version of GB so as to make it more apt for wartime production. Though, the body of KB was still made with steel, it became less curvy and simple in design.

Dates and Production Figures

The KB was produced from 1942 to 1944 and total of 21130 units were produced.


Mechanicals were almost similar to G1, GA and GB.


Although, the material available was limited during the wartime production, minor changes were made in the KB truck to make it suitable for the wartime production. The main focus at that time was to reduce as much cost as possible. Metal was still preferred for engine cover, however, plywood was now used for body panels. It featured a lot squarer body, lot simpler engine cover and a flat radiator with no grille. It featured only rear brakes.

Dates and Production Figures

In 1943, the first KC truck was launched.


These were similar to G1, GA, GB, and KB.


KCY was based on a metal boat style hull.

Dates and Production Figures

Only 198 units of KCY truck were produced from 1943 to 1944.


Although, majority of the mechanicals were same as found in KC, a four-wheel drive with a 2-speed transfer case was added to the lineup. KCY featured the hydraulic brakes. A PTO driven propeller was used for water propulsion.

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