Toyosha S148

Toyosha S148 diesel engineThe Toyosha S148 is a 1.5 l (1,477 cc, 90.13 cu-in two-cylinder liquid-cooled 4-stroke internal combustion diesel engine, manufactured by Japanese company Hinomoto under the Toyosha brand.

This engine has two cylinders, overhead valves (2 per cylinder), three main bearings, flyweight governor and Kiki fuel injection pump. The S148 engine uses Hitachi S13-31 electric starter, Hitachi L115-5B (12V-15A) alternator and Hitachi TRIZ-34 voltage regulator.

Bore and stroke are 97.0 mm (3.82 in) and 100.0 mm (3.94 in), respectively. Compression ratio rating is 23:1. The Toyosha S148 engine produced 28.0 HP (20.9 kW) at 2,500 rpm of maximum output.

General information

Engine Specifications
Model S148
Type 4-stroke, OHV, two cylinders
Displacement 1.5 L, 1,477 cm3 (90.1 cu-in)
Max. horsepower 28.0 HP (20.9 kW) at 2,500 rpm
Max. torque (crank PTO)
Cooling system Liquid-cooled
Fuel injection pump Kiki PES-2K
Starting system Hitachi S13-31 electric starter
Fuel used Diesel fuel

Service Information

Maximum speed 2,600 ± 150 rpm
Idle speed 750 ± 150 rpm
Valve clearance
Intake valve 0.30 mm (0.012)
Exhaust valve 0.35 mm (0.014)
Oil system
Oil type Diesel oil (API Service Classification CC or CD)
Recommended oil SAE 10W-30
Oil capacity With filter change: 4.6 l (5.0 qt.)
Without filter change: 4.0 l (4.2 qt.)
Electrical system
Alterator Hitachi L115-5B (12V-15A)
Voltage regulator Hitachi TRIZ-34
Starter Hitachi S13-31
Fuel system
Fuel pump Kiki PES-2K
Injection timing 22° B.T.D.C.
Fuel nozzle pressure 1710-1840 psi
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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  1. Dear Sirs and Madames,

    do you have a stock and a price?

    Hinomoto Toyosha S148

    1 x Head Set gasket Kit incl. Cylinder head gasket

    Many thanks and kind regards
    Daniele Rossi

  2. I would like to purchase a new Toyosha S148 engine or a replacement that would fit onto my Massey Furguson 220 which uses this identical engine.

    Any help?


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