List of Auto Parts

The Complete List of Essential Auto Parts

Do you own a car? Or are you a car lover and drive a car regularly? Of course, handle a car like a pro is a matter of pride and joy. But believe us it is not fair enough. You should have at least elementary knowledge about the parts of your car besides a good driving skill.

You may think it is a stupid point but let me explain in details. A piece of sound knowledge on the parts of your favorite and beloved car allows you to take the best care of it. You can understand the reasons for common and frequent problems in your vehicle. So, this knowledge enables you to more control over your car.

Moreover, you know that safety is the highest law for any purpose for the human being. When you know the parts of the engines, you can find out the exact problem within a moment. Sometimes, you may repair the damage by yourself for the silly case. So, it is mandatory to have a fair knowledge about the parts of the auto besides the good driving skill to avoid the worst situation.

Before going to discuss on the parts, you should know about the basic of Engine.

In a simple word, an engine is a machine which transfers the fuel into energy in case of auto.

Generally, there are two parts of an engine.

  • Internal combustion engine that burns the fuel inside the engine Cylinder.
  • External combustion engine that ignites the fuel outside the engine cylinder.

Here, in this article, we have discussed thirty essential car parts. I hope you will enjoy it.

Without no more ado, let’s dig out the points.

List of Auto Parts

  1. Spare Tires
  2. Brakes
  3. Clutch
  4. Battery
  5. Axle
  6. Car Jack
  7. A/C Compressor
  8. Air Filters
  9. Spark Plug
  10. Radiator
  11. Engine Fan
  12. Engine Valve
  13. Sleeve valve
  14. Poppet valve
  15. Rotary valve
  16. Fuel Injector
  17. Piston
  18. Piston Clearance
  19. Piston Ring
  20. Connecting Rod
  21. Piston Pin
  22. Shock Absorbers
  23. Transmission
  24. Muffler
  25. Alternator
  26. Catalytic Converter
  27. Pressure Gauge
  28. Power Steering Fluid
  29. Cylinder Block
  30. Cylinder Head
  31. Manifolds
  32. Gasket
  33. Speedometer

1. Spare Tires

Spare tires provide you with a tension-free journey even on the worst roads. If you need to change the tire, you can do it easily with the help of carjacking.

Though almost every tire is tubeless nowadays, carrying a spare tire is mandatory for your safety.

You have two options for spare tires. Like-

  • Full-Size Matching Spare
  • Full-Size Non-Matching Spare

Full-size matching spares are similar and matching to your existing tires. It ensures you a similar experience like the originals.

On the contrary, Non-matchings are also the full-sized but not similar and same size to the original one. You have to replace it after your crisis period.

2. Brakes

Modern cars have a curb on the four wheels. This is called a Hydraulic brake. It is also known as the fluid brake. Generally, the brakes are a disc-like or drum-like.

Besides hydraulic brakes, many of the cars contain power assisted brake. It reduces your effort in applying on the brakes.

Apart from the disc and drum brakes, usually all cars have the mechanical hand braking system. This one acts on the two brakes, generally on the rear ones. These are the supportive break. If hydraulic brakes fail, mechanical brakes provide limited support.

3. Clutch

The cars which are based on the manual transmission, the presence of clutch is mandatory. If you have something like that, obviously you are familiar with the grip.

Generally, you use the clutch during changing of gear. Clutch is the third pedal and located from the left far corner. While staring the engine, it is always spinning.

But for safety case, the wheels need to be capable of starting and stopping. By the use of the clutch, you can disengage the wheels from the engine Without affecting it.

4. Battery

The battery is the ultimate power supply of the auto engine. The Auto battery is rechargeable and supplies electrical energy that ignites your car.

Batteries are also known as Lighting, Starting and Ignition SLI according to their roles.

If your battery becomes down, you can’t start your engine. There are some specific reasons for assault down.

Among all the reason Excess heat is the main reason for damage. Corrosion of the battery terminal is another reason.

An auto battery has a toxic effect in the environment due to the presence of lead.

5. Axle

All wheeled vehicle contains Axle. For driving, steering, and braking; shafts act one of the essential features.

The most important feature of Axles is transferring the power and torque from the engine to the wheels. Axles are made of hard metal, and it can bear a high load.

6. Car Jack

Adding a spare tire or other purposes, you may need to lift your car. A car jack is a simply designed tool that helps to raise the vehicle.

The working procedure is straightforward. You can operate it without the assistance of other people.

Nowadays, you will get a free car jack when you buy a new car. You will find different types of car jack in the market. Like-

· Scissor Jack

· Floor Jack

· Bottle Jack

· Hi-lift jack

7. A/C Compressor

A/C compressor is nothing but a pump. It is called the heart of the air conditioning system.

It controls the whole air conditioning system inside your car. A/C compressor deals with temperature and pressure. Initially, it creates a hit and emits cold air through another process.

It may be damaged due to Lack of lubrication and leakage.

8.Air Filters

Air filters prevent to enter the debris, contaminants and other harmful materials into the engine.

Air filters allow you to get some benefits. They protect the vital part of your car parts. Besides, they ensure to run your car efficiently. It enhances engine performance by more than 11%.

You should check the air filter regularly. If it is dirtied, you should change it to get the best service from the engine.

9.Spark Plug

Spark plus is one of the tiniest parts Your car, and you can’t move or start your car without it. Engine starts when Electric spark ignites the fuel. So, the spark plug is directly connected with the engine directly.

So, you should check your spark plug regularly if there is a minor problem here it may affect significantly on the engine like cold starting or misfiring at the time of acceleration.

10. Radiator

Radiators are commonly known as the heat exchanger that acts on the cooling purpose of the internal combustion engine. Almost in every engine like automobile, locomotive of the train, motorcycle or other piston engines radiator is used.

The coolant that is present in the radiator that helps to cool the hot air send back to the engine.

Most common complaints about the coolant are leakage. However, it is manageable.

11. Engine Fan

The function of engine fan and radiator is similar looking. They are complemented of each other.

Radiator controls the temperature on the contrary, engine fan supply air to boost the cooling system.

12.Engine Valve

Engine valve controls the timing of air-fuel mixture entry. The automobile is also known as a multi-valve as it has more than one plug.

There are three types of an engine valve

· Sleeve valve

· Poppet valve

· Rotary valve

12.1 Sleeve valve

The position of the sleeve valve is between the cylinder and piston. The construction is simple, and it is silent in operation.

As the sleeve valve is comparatively large, it is complicated to clean.

12.2 Poppet valve

Poppet valves indicate its motion by its name. The movement of the poppet valve is up to down rotation.

In most of the automobile engine, the poppet valve is used.

12.3 Rotary valve

The rotary valve contains a disc and port. Construction is simple.

Most significantly it is cheaper than other types of valve.

13. Fuel Injector

The physical size of the Fuel injector is small, but the contribution is high. It controls the passing of gas from the tank to the engine.

This small part highly increases the efficiency of the engine. You can expand the life span of your engine by cleaning the fuel injector regularly.

14. Piston

The speed of the car directly depends on the function of the piston. Movement unit of the piston is RPM. That means Rotation per unit. The more the RPM, the more the speed you will get.

Four to six pistons present in an automobile engine. It ensures the mixture of fuel and air before ignition.

15. Piston Clearance

Piston clearance is not a is the space between piston and cylinder wall for smooth moving.

It contains a lubricant that helps to reduce the friction between the piston and cylinder. Without piston clearance, no movement of piston occurs. Ultimately, your cars cannot move.

16. Piston Ring

Piston rings are assembled into the groves of the piston that ensure a good seal between the piston and cylinder wall.

Piston ring provides good passage of heat between a peak of piston and cylinder wall.

17. Connecting Rod

Connecting rod is the connector between the piston and crankshaft.

In the case of a piston, connecting rod converts the reciprocating motion to rotary motion.

Connecting rod is very light and robust. It is made of duralumin or alloy steel.

The piston pin connects the piston and connecting rod. It is hollow and light. It is made of case hardened still and straightforward in structure.

Piston pin also is known as gudgeon pin or wrist pin.

19. Shock Absorbers

When you drive your car, you feel a vibration. Isn’t it? It occurs due to the up and down of the road.

Shock absorbers precisely the parts that reduce the vibration occurring from the road and another source. It is a mechanical part known as the hydraulic device also.

The location of shock absorbers is adjacent to the wheels of the vehicle. It contains spring and cushion. It is a much-needed part not only for the auto but also for another engine vehicle.

20. Transmission

The primary function of the communication is to transfer the energy from the engine to the wheels. It alternates the speed to the torque. It is also known as the gearbox.

In the modern car, the automatic transmission is used while manual transmission also presents in the car.

Though manual transmission is cost-effective rather than the automatic one but the automatics consume less fuel than the manual one.

21. Muffler

Noise has an adverse effect both on the animal and environment. Your immune system will become weak by Living in a noisy place the year after.

The muffler does the same things that we want. Among all the function of the muffler, noise control is the most important one. Usually, the engine creates a big noise when it works. Muffler compressed the engine sound and ensured you a comfortable journey.

22. Alternator

The alternator is directly related to the battery. When the engine starts other works as a supplementary for the engine. By this process, alternator helps your engine to protect from battery drain.

You should check the alternator regularly to get the best service from the engine. Otherwise, it will collapse the whole function of the engine.

23. Catalytic Converter

The catalytic converter is one of the cheap parts of your car. But the role is really important.

It controls the emission of gas that comes from the engine. As it is made of metal, it may be delayed after a certain period.

It is straightforward to fix. Also, cost less amount.

24. Pressure Gauge

It is not a typical part of your car. But it has value indeed.

It is one type of meter by which you can check the air pressure of the tires and ensure the right proportion. It helps to get an enjoyable trip with your car.

25. Power Steering Fluid

In a simple word, Powers steering fluid transmits the power in power steering. Hydraulic power steering system needs the power steering fluid to work smoothly.

You have to change your car’s old power steering fluid with a new one after a certain period of running.

26. Cylinder Block

The cylinder block is the fundamental framework for the engine. It contains three parts mainly.

· The piston that rotates from up to down direction.

· Passage for flowing cold water.

· Opening port for the valves.

These are the elementary information of cylinder block.

27. Cylinder Head

Generally, cast iron and aluminum alloy are used to make cylinder head. Cylinder head and cylinder block are joined together.

If you notice on the top of the cylinder, you will see some cast piece. These are the cylinder head.


Manifolds are the set of pipes that are attached to the cylinder head. They carry the air-fuel mixture and exhaust gas from the engine.

As it exhausts gas, it is made of cast iron so that it can tolerate high temperature.

29. Gasket

Gaskets are nothing but a complicated thing. It is used to tight between two surfaces.

Generally, gaskets are made of rubber or asbestos. It has multidimensional use in an automobile.


Though speedometer isn’t a typical auto part, it is necessary indeed.

You can’t drive as your wish on every road. You have to follow the highway rules. Speedometer helps you not only showing the speed of your car but also show the level of fuel and many other essential indicators.

Hope the list of auto parts add value to your knowledge. As a car owner, you should have the elementary knowledge about these parts.