The Definitive Guide on Excavator Engine Parts Name

The excavator engine parts names are the names of different excavator engine parts. In order to operate and maintain an Excavator, one must know all about its parts.

For instance, if you want to buy a replacement part for your excavator engine, you can ask by name. Instead of explaining what it is that you need in detail, which might lead you to buy the wrong part because of miscommunication with the seller.

By learning about the excavator engine parts names, you can always be sure that you have the right equipment for your jobs because you have already familiarized yourself beforehand.

The name of the excavator engine parts reflects its function, and you can immediately identify it correctly by saving a lot of time spent in miscommunication.

Major Excavator Engine Parts Names

Sr. No. Part Name Sr. No. Part Name
1 Excavator Ignition Switch 20 Excavator Fuel Filter
2 Excavator Alternator 21 Excavator Cylinder Block
3 Excavator Starter 22 Excavator Cylinder Head
4 Excavator Engine Fan 23 Excavator Exhaust Valve
5 Excavator Engine Water Pumps 24 Excavator Crank Shaft
6 Excavator Engine Fuel Pump 25 Excavator O ring
7 Excavator Fuel Injector 26 Excavator Cylinder Gasket
8 Excavator Cylinder Head Cover 27 Excavator Water Sensor
9 Excavator Valve Seal 28 Excavator Oil Sensor
10 Excavator Thrust Washer 29 Excavator Timing Chain
11 Excavator Nozzle Sleeve 30 Excavator Exhaust Manifold
12 Excavator Oil Pan Gasket 31 Excavator Intake Manifold
13 Excavator Crank Pulley 32 Excavator Valve Rocker Shaft
14 Excavator Injection Pipe 33 Excavator Oil Pan
15 Excavator Rocker Arm 34 Excavator Turbocharger
16 Excavator Oil Overflow Valve 35 Excavator Connecting Rod
17 Excavator Piston 36 Excavator Clutch
18 Excavator Flywheel  
19 Excavator Pressure Plate  


1.   Excavator Ignition Switch

An ignition switch in excavator engine parts name list is a device used to control the starting and stopping of an engine. It consists of a key inserted into a lock on top of the button. The key must be turned to start the engine and can only be removed when the engine is switched off.

2.   Excavator Alternator

The function of the Excavator Alternator is to produce an alternating current. When the engine runs, it powers the alternator, which has electrical energy and sends it through wires to be stored in batteries to power lights and other equipment on board.

3.   Excavator Starter

Excavator Starter in excavator engine parts name list is the machinery that has a starter that helps a diesel engine get started. The starter works on the principle of electromagnetic induction, which uses magnetic force to turn over the engine and start it running.

4.   Excavator Engine Fan

Excavator Engine Fan is a large diameter fan that transfers air from the engine compartment to the exhaust assembly and helps cool down the engine. There are many different types of Excavator Engine Fan. The fan can be divided into axial and radial flow, and each fan has its characteristics.

5.   Excavator Engine Water Pump

The water pump in excavator engine parts name list is used to circulate coolant through the engine and maintain an adequate temperature in the engine compartment so that hydraulic functions can continue working.

6.   Excavator Fuel Pump

The Excavator Fuel Pump provides fuel to the engine. The fuel pump is a mechanical device that sends power from the tank to the combustion chamber of your vehicle. It can be mounted on the engine block or a separate subframe.

7.   Excavator Fuel Injector

In machinery, an excavator fuel injector is a device that automatically injects diesel, gasoline, or other combustible engine fuels into the cylinders of a gas engine at high pressure.

Fuel types are not interchangeable; a special injector must be used for each fuel type to prevent over-speeding and preignition.

8.   Excavator Cylinder Head Cover

The Excavator Cylinder Head Cover in excavator engine parts name list is the metal casing that houses the cylinder head of an excavator. The cylinder head is where heat dissipation from the engine is transferred, so it needs a metal casing to protect it and communicate heat effectively.

The cylinder head is also home to essential parts such as valves and rings, so it must be well-protected by a strong and durable casing.

9.   Excavator Valve Seal: Excavator Engine Parts Name

A valve seal is a gasket installed between a valve and its seat to prevent the flow of fluids or gases. The valve seal also helps prevent damage to other parts, thus making it a critical safety device necessary to keep your Excavator working safely.

10.  Excavator Thrust Washer

A thrust washer in excavator engine parts name list is a kind of washer that can transfer the bolt’s radial load to axial load. It is used to reinforce the joint between two members, so it is often called a reinforcement washer. The thrust washers prevent or absorb the tensile stress while maintaining the axial thrust at the bolt hole.

11.  Excavator Nozzle Sleeve

As the main component of the cylinder head, the nozzle sleeve is located in the central part of the cylinder head. It is a high-temperature metal casting. The design of the nozzle sleeve makes it possible for coolant fluids to flow out of channels on its wall when they are put into operation, while liquid fuels such as oil are inserted into them from time to time.

12.  Excavator Oil Pan Gasket

Excavator Oil Pan Gasket is a mechanical seal that reduces leakage from the oil pan gap created by the crankcase.

It helps keep dirt and other unwanted materials out as well. This gasket is made of a rubber or plastic material compressed between the engine block and oil pan.

13.  Excavator Crank Pulley

The Excavator Crank Pulley in excavator engine parts name list is a pulley for the crankshaft of an engine. Crank Pulley is a component that transmits power from the engine to different machinery parts. It has flanges to push and pull the belt, and the pulley uses centrifugal force to transfer power from the engine.

14.  Excavator Injection Pipe

Excavator Injection Pipe is a pipe used to transfer fuel from the fuel tank to the engine combustion chamber. The injection pipe is connected directly to the injector.

15.  Excavator Rocker Arm

Excavator Rocker Arm is a device that allows the load to be lifted, retracted, and lowered. Excavator Rocker Arm is the central working part of the Excavator. Excavator Rocker Arm performs the predetermined timing in the cycle of operation.

It is used in conjunction with a camshaft on an engine. As the engine rotates, power is delivered to the rocker arm, which provides power to the intake and exhaust valves.

16.  Excavator Oil Overflow Valve

An Excavator Oil Overflow Valve is installed on the hydraulic system of an excavator. The valve is connected to the hydraulic pipe and manifold such that when the engine oil level rises too high, it can drain off excess oil through this valve.

This valve aims to avoid overfilling the engine oil reservoir and prevent damage that may occur to other parts within the engine due to overloading or overflowing.

17.  Excavator Piston

Excavator pistons help transmit the power from the engine to the drivetrain. The piston is an internal combustion engine component used to create mechanical energy from a high-pressure gas forced into it.

18.  Excavator Flywheel

An excavator flywheel in excavator engine parts name list is an internal combustion engine component. An excavator engine flywheel is a rotational mechanical device that stores rotational energy to power an attached load. It is made of steel or cast iron.

19.  Excavator Pressure Plate

The pressure plate, also known as a clutch disc, is a flywheel-like mechanical device used in conjunction with a transferring device called a release lever or pedal to disengage the engine from the transmission to accelerate smoothly.

The pressure plate transfers power from the crankshaft to the transmission through friction when pressure is applied via the release lever.

20.  Excavator Fuel Filter

Excavator Fuel Filter is a component of the machine engine that filters out the debris and other particles from the fuel to prevent damage to your engine. It would help if you replaced it when it gets old.

21.  Excavator Cylinder Block

The cylinder block is the most significant single part in the engine assembly, and it’s often referred to as the engine’s foundation. The cylinder block is cast out of high-strength aluminum alloy, making a lightweight but durable housing for all components.

The cylinder block houses four cylinders (two per bank), each containing valves that control the flow of fuel and air through them, so that the pistons can convert their motion into rotational force to spin the crankshaft.

22.  Excavator Cylinder Head

The Excavator cylinder head in excavator engine parts name list is the upper part of the cylinder block. A cylinder head is called so because it lies above the valves in a cylinder, thus making it appear like a head. It adopts both head and valve mechanisms, which mainly include valves’ assembly. It is also a heat sink since it has coolant passages.

23.  Excavator Exhaust Valve

Excavator Exhaust Valve is a part that conducts out air from the engine to the outside to release combustion gases from the engine cylinders.

Thus, decreasing the combustion pressure inside of it. It has a valve that opens and closes according to whether there is a need for discharging exhaust gas or not.

24.  Excavator Crankshaft

Excavator Crankshaft is a long rod with counterweights attached throughout. It plays an essential role in excavators.

It works as a mechanical force to connect the engine flywheel and the machine section with its attachments through the power transmission system. The crankshaft transmits the torque produced by the piston movement to cope with external work or load in the machine section.

25.  Excavator O Rings

O-rings are used in excavators to seal the joints between moving components. They are made with synthetic rubber compounds, which vary in durometer rating. These compounds can be cross-linked or not. A cross-linked compound has more excellent resistance to high temperatures.

26.  Excavator Cylinder Gasket

Excavator Cylinder Gasket, also known as the cylinder head gasket, is a gasket used in many different types of internal combustion engines, specifically more significant, more powerful ones. It is used to seal the engine block to the cylinder head to prevent fluids from leaking out.

27.  Excavator Water Temperature Sensor

The water temperature sensor in excavator engine parts name list is an essential part of the Excavator that detects the temperature of the engine coolant, preventing it from overheating. It sees how hot the coolant is. This signal is then sent to the operator console to display the water temperature on the console’s LCD.

A typical water temperature sensor consists of a thermistor connected to the control unit for processing data and taking control measures based on that data.

28.  Excavator Oil Level Sensor

Excavator Oil Level Sensor is a unique device installed in the motor oil barrel of excavators to monitor the level of oil inside. It is also equipped with an alarm to remind the operator when a certain amount of oil has been consumed and needs to be refilled.

29.  Excavator Timing Chain

The function of a timing chain is to connect the crankshaft and camshafts and keep them in sync with each other. The timing chain is also what moves the valves or opens and closes them at the right time needed.

30.  Excavator Exhaust Manifold

The exhaust manifold is a component in the engine of a machine. It’s made up of pipes that channel the exhaust gas from the cylinders into one pipe, where it’s expelled from the device. The manifold connects to other components through bolts and flanges to ensure everything correctly fits.

31.  Excavator Intake Manifold

The intake manifold is crucial to fuel delivery in a modern engine, as it delivers fuel and air mixture evenly to each cylinder for combustion. Its importance is confirmed by its ability to optimize the performance and efficiency of modern internal combustion engines.

32.  Excavator Valve Rocker Shaft

The valve rocker shaft is a part of the hydraulic valve group. It is mounted at one end in place of the camshaft and the other to the valve lifter utilizing an eccentric pin. It allows them to move up and down with camshaft movement, thus opening and closing the valves.

33.  Excavator Oil Pan

Oil pans are designed to catch and hold engine oil, separating it from other system fluids in the event of a leak. It helps to ensure that the engine is constantly lubricated and feeding the hydraulics and coolant system with oil. It is usually made up of a metal casing and a bottom plate, with an opening on one side.

34.  Excavator Turbocharger

An Excavator turbocharger is a device that pressurizes the air intake to improve the engine’s performance. The better the airflow into a machine, the more power it can develop.

A turbocharger is an internal combustion engine component that increases the power output of a reciprocating engine by compressing air.

35.  Excavator Connecting Rod

This is an essential component of an excavator engine that connects the piston to the crankshaft. It then transfers the mechanical power of the piston to connecting rod through the crankshaft. It acts as a pivot point and connects the two components of an excavator, making it possible for them to operate in parallel.

36.  Excavator Clutch

A clutch offers enhanced control and leverage by using a mechanism to transfer power from the engine to the driveshaft. Excavator clutch in excavator engine parts name list is designed with a push-lock lever that prevents the clutches from slipping off and acts as a safety measure to prevent the machine from turning over when not in use.


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