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
Type4-stroke, OHV, two cylinders
Displacement1.5 L, 1,477 cm3 (90.1 cu-in)
Max. horsepower28.0 HP (20.9 kW) at 2,500 rpm
Max. torque (crank PTO)
Cooling systemLiquid-cooled
Fuel injection pumpKiki PES-2K
Starting systemHitachi S13-31 electric starter
Fuel usedDiesel fuel

Service Information

Maximum speed2,600 ± 150 rpm
Idle speed750 ± 150 rpm
Valve clearance
Intake valve0.30 mm (0.012)
Exhaust valve0.35 mm (0.014)
Oil system
Oil typeDiesel oil (API Service Classification CC or CD)
Recommended oilSAE 10W-30
Oil capacity With filter change: 4.6 l (5.0 qt.)
Without filter change: 4.0 l (4.2 qt.)
Electrical system
AlteratorHitachi L115-5B (12V-15A)
Voltage regulatorHitachi TRIZ-34
StarterHitachi S13-31
Fuel system
Fuel pumpKiki PES-2K
Injection timing22° B.T.D.C.
Fuel nozzle pressure1710-1840 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.

ATTENTION! Dear visitors, this site is not a trading platform, an official dealer or a spare parts supplier, so we do not have any price lists or spare parts catalogs. We are an information portal and provide the technical specifications of gasoline and diesel engines.

We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.


  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?


Leave a Reply

Your email address will not be published.