Starting in 1958 Nissan began a rather strange policy of introducing a 'bottom of the range' model truck to slot into the range below the regular small truck from that year, this policy continued through into 1959 with the introduction of the Datsun 125 truck. In 1959 Nissan introduced the new Datsun 221 truck as their regular small truck model. Like the previous Datsun 220 model the 221 was offered with the 37hp 988cc over head valve C series engine, and was also available with the new enlarged 48hp 1189cc over head valve E series engine. The Datsun 125 slotted into the model range under the 221.
Just like the previous Datsun 124 truck the new Datsun 125 was essentially the same as the Datsun 221 except for it's engine and grille. The 125 was fitted with a rather old-fashioned side valve engine, which was the 860cc B-1 series engine. The previous 124 truck was fitted with the D-10 engine. The D-10 and the B-1 were essentially the same engine, they were both the same size at 860cc, the only difference being that the new B-1 had a compression ratio of 6.7:1 while the D-10 was 6.5:1. The B-1 produced 27hp while the D-10 produced 25hp.
The body of the Datsun 125 is pretty much the same as the 1958 Datsun 124. It uses the same grille and front panel as the 124, which was a pressed steel grille with six slots that sat inside the grille opening with about an inch of clearance between the grille and the opening. The badges are all the same as the 124, with a Datsun badge just above the grille, and a Datsun badge on the side of the vehicle. The only significant difference between the 124 and the 125 is that the 124 had small front indicators either side of the grille and also had the bullet shaped indicators mounted to the top of the front guards, the 125 instead had no bullet indicators but instead had larger front indicators.
The Datsun 125 was replaced in 1960 by the Datsun 126, which would be the last vehicle in this line to use a side valve engine, although the Datsun Cablight truck range continued to use side valve engine for several more years.
The standard pickup model.
The 221 was essentially the same vehicle as the 125, except it had a different grille and also the larger and more powerful 988cc C series OHV engine. More information about this vehicle can be found on the 220 page.
The 125 truck was based on the same chassis and mechanicals as the Datsun 115 series. More information about these vehicles can be found in the Datsun 115 page.
Length - 3742mm
Width - 1466mm
Height - 1620mm
Wheelbase - 2220mm
Weight - 870kg
Top speed - 77kph
Transmission - Column change 4 speed
OHV 4 Cylinder
Model - B-1
Capacity - 860cc
Bore & Stroke 60x76mm
Power - 27hp@4000rpm
Compression - 6.7 : 1
Carburettor - unknown type single throat downdraught
Final drive - 6.43:1
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