1. Gasket KIT
For cylinder head
For cylinder block
This kit includes the o-rings, seals, and gaskets
when repairing the cylinder head and block.
• All assemblies contain crankshaft with gear,
cylinder block, oil cooler, pistons, liners, connecting
rods, piston rings and bearings.
• Standard new parts warranty is 6 months, from
date of purchase by initial user.
• Special packaging film is used which ensures
cleanness during shipping.
• Reduce repair time and machine down time for
• Wide product coverage reduces inventory requirements.
• Cost effective. Assembly is less expensive than
sum of the individual parts
• Eliminate confusion due to improper parts.
3. Rain Caps
This prevents rain from entering the exhaust pipe
4. Exhaust Pipe
The exhaust system is designed so that the operator
will not be affected by exhaust gas , smoke or noise.
There are two types of exhaust pipe on wheel loaders:
one type with glass wool, and the other type without
The Muffler is a device to reduce the exhaust
6. Cylinder Liners
Wet and dry type liners are used in Komatsu
engines. The inside surface of most cylinder liners
are nitrided in order to reduce excessive wear and prevent
scuffing. Plateau honing are applied to most cylinder
Ductile cast iron pistons and aluminium pistons are
used in Komatsu engines for high durability and reliability.
8. Piston Rings
The purpose of piston rings is to seal compression
gas pressure inside the cylinder wall, and to transmit
heat from the piston to the cylinder liner. They are
made of special cast iron having high thermal resisting
and wear-proof properties and high strength
These bearings support the severest running
portion of crankshaft as the engine bearings and therefore,
they are subjected to heavy surface pressure and severe
high speed running motion. Each bearing is made of a
single metal (as the base metal) but also has lining
(intermediate layer) and overlay (surface layer) on
the base metal to obtain the high strength and break-in
properties required for bearings shown above
The thermostat acts to open the valve to the
radiator circuit when the temperature of the cooling
water in the engine circuit reaches a certain temperature.
The valve starts to open at approx. 770C and is fully
open at 900C
11. Fuel Water Separators
The fuel water separator removes the water
in fuel. This prevents the water in the fuel from having
any adverse effect on the fuel injection system.
12. Air Intake Heaters
The air intake heater is installed to the intake manifold,
and acts to heat the intake air to improve the ease
of starting the engine.