Yanmar and Komatsu are two Japanese companies dedicated to manufacture engines and machines used in construction, agriculture, mining…
They are two different companies, but there are similarities and differences in engines they develop. Yanmar and Komatsu offer a wide range of fuel-efficient diesel engines and try to cut down on emissions as much as possible.
As we mentioned in a previous article, Yanmar engines are mostly found in smaller machinery such as tractors and excavators and in marine applications. However, Komatsu applies to larger construction machinery like bulldozers and wheel loaders, mining and forestry machinery.
Komatsu sometimes uses Yanmar engines in its machines when they require high power and durability for tasks such as digging, excavating and heavy lifting. Their size and design is suitable for machinery with limited space.
MOST COMMON ENGINES
YANMAR 3TNE84 / KOMATSU 3D84E
The Yanmar 3TNE84 engine is a 3-cylinder diesel engine with a bore of 84 mm and a stroke of 90 mm. It has a capacity of 1.49 liters and is capable of producing up to 39 hp at 3,000 rpm.
YANMAR 4TNE88 / KOMATSU 4D88
It is a 4-cylinder engine characterized by indirect injection and liquid cooling. It has a capacity of 2.19 liters, a bore of 88 mm and a stroke of 90 mm.
YANMAR 4TNE94 / KOMATSU 4D94
4-cylinder diesel engine with a capacity of 3.3 liters. Unlike the other engines mentioned, this engine has direct injection and an overhead valve configuration, also known as OHV (Over Head Valves). OHV engines have valves in the overhead area and move the rocker arms thanks to rods.
YANMAR 4TNE98 / KOMATSU 4D98
Like the 4TNE88 engine, it is a 4-cylinder engine with indirect injection and is liquid-cooled. Nevertheless, it has a larger capacity (3.3 liters), has a larger bore and stroke, 98 and 110 mm respectively.
At Oryx Parts we have a wide range of engine spare parts for the engines which we mentioned previously. If you want a successful repair, contact us!