Does This Car Part Belong to the Engine or the Transmission?

By: Robin Tyler
Estimated Completion Time
3 min
Does This Car Part Belong to the Engine or the Transmission?
Image: Shutterstock

About This Quiz

In a motor vehicle, one is just as crucial as the other.

Without either an engine or a transmission, be it automatic or manual, a car is not going anywhere. 

Some would say the engine is more critical but without the transmission, all that power generated by the engine cannot be transferred into motion.  

And I am sure you will agree, a car that doesn't move is pretty useless. 

Both the transmission system and the engine on your car are nothing short of a technological miracle filled with thousands and thousands of moving parts, big and small, each as important as the next. Without these parts, your car is not worth much.

As an auto nut, you may be aware of some of them, be it parts of the engine or the transmission. Now, we not going to ask you to name them in this quiz, we just want you to be able to tell if they come from the engine or the transmission by looking at a single image.

Seem easy? It really isn't. This is going to test you like never before! But with a little thought and maybe some luck, you should ace it.

Good Luck!

Oil Filter - Engine
Youtube via Cruzdelasadas technical
Does the car part in the image belong to the engine or transmission?
Engine
Oil plays a crucial part in keeping all the moving parts of an engine lubricated. An oil filter will help to remove impurities that might have entered the engine and which could cause damage.
Transmission
Camshaft
n/a
Does the car part in the image belong to the engine or transmission?
Engine
The camshaft opens and closes valves within a car's engine. This ultimately provides the engine with its power.
Transmission
Oil Pump - Engine
Youtube via HumbleMechanic
Does the car part in the image belong to the engine or transmission?
Engine
The basic function of the oil pump is to circulate oil which lubricates moving parts within the engine, such as the camshaft, bearings and pistons.
Transmission

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Automatic Transmission Pump
Youtube via TK42138
Does the car part in the image belong to the engine or transmission?
Transmission
Often considered to be the heart of the transmission system, the automatic transmission pump moves hydraulic fluid through the gearing system to ensure it operates efficiently.
Engine
Cylinder head - Engine
Youtube via Pete's Garage
Does the car part in the image belong to the engine or transmission?
Engine
Found above the cylinder, the cylinder head is the area the piston compresses into as it moves. It also houses intake and exhaust valves, springs and lifters and the combustion chamber.
Transmission
Planetary Gear Set
Youtube via WeberAuto
Does the car part in the image belong to the engine or transmission?
Engine
Transmission
A crucial part of the transmission, the planetary gear set helps to make all the various ratios that the gears in the transmission can produce. It consists of the sun, planetary and ring gears.

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Distributor - Engine
Youtube via Myvintageiron7512
Does the car part in the image belong to the engine or transmission?
Transmission
Engine
This part is essential to how your engine runs. It allows the fuel/air mixture into the cylinder of the engine where it will combust, causing the engine to run. It does this by evenly distributing the air/fuel mixture to the intake ports.
Fan Belt - Engine
Youtube via MicksGarage.Com
Does the car part in the image belong to the engine or transmission?
Transmission
Engine
The fan belt, made from rubber, connects a number of components of the engine, including the cooling fan, alternator and the crankshaft pulley.
Torque converter Transmission
Youtube via EricTheCarGuy
Does the car part in the image belong to the engine or transmission?
Transmission
Found in cars with automatic transmissions, a torque converter fulfills the same role as a clutch in a manual transmission car. Essentially, it keeps the engine turning over when the vehicle comes to a halt.
Engine

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Thermostat
n/a
Does the car part in the image belong to the engine or transmission?
Engine
A thermostat ensures that coolant is only pumped from radiator once the engine has warmed up sufficiently.
Transmission
Water Pump
n/a
Does the car part in the image belong to the engine or transmission?
Engine
This pump ensures that coolant kept in the radiator is moved through the car's coolant system, keeping the engine at an optimum temperature.
Transmission
Clutch
n/a
Does the car part in the image belong to the engine or transmission?
Transmission
Found in cars with manual transmissions, a clutch fufills the same role as a torque converter in an automatic transmission car. Essentially, it keeps the engine turning over when the vehicle comes to a halt.
Engine

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Engine Control Unit
n/a
Does the car part in the image belong to the engine or transmission?
Engine
An integral part of modern engines, and engine control unit or ECU is a series of sensors that ensure that the engine runs optimally.
Transmission
Timing Belt - Engine
Youtube via GENEMS LMS
Does the car part in the image belong to the engine or transmission?
Engine
The timing belt ensures that the camshaft opens and closes the valves in the engine at the right time so as to ensure that that engine runs at 100 percent efficiency.
Transmission
Transmission Bands - Transmission
Youtube via Michael Cramer
Does the car part in the image belong to the engine or transmission?
Transmission
Made from steel, timing bands are straps that are found in the transmission on drums within it. These drums will rotate when the band is not pressed against it to grip it. Stopping their rotating means components within the transmission interact in different ways, depending on what the driver is doing in terms of gear selection.
Engine

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High Tension Leads - Engine
Youtube via Mark's Garage
Does the car part in the image belong to the engine or transmission?
Engine
High tension leads connect the spark plugs to the distributor.
Transmission
Connecting Rod - Engine
Youtube via Project Farm
Does the car part in the image belong to the engine or transmission?
Engine
The connecting rod connects the pistons with the crankshaft.
Transmission
Sensors
Youtube via K2four
Does the car part in the image belong to the engine or transmission?
Transmission
In modern automatic transmission systems, sensors on the engine and within the transmission itself track speed, the position of the throttle, the speed of the engine and other factors to control shift points.
Engine

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Tappet - Engine
Youtube via TechTrixInfo.com
Does the car part in the image belong to the engine or transmission?
Engine
Also known as a lifter or cam follower, tappets are found on the camshaft in the engine. As the camshaft rotates, they move vertically, lifting the valves.
Transmission
Valve Body - Transmission
Youtube via COMP Cams
Does the car part in the image belong to the engine or transmission?
Engine
Transmission
In automatic transmissions, the valve body is vitally important. It helps direct hydraulic fluid to valves in the transmission that in turn engage the appropriate band servo or clutch pack needed at that time.
Sump - Engine
Youtube via Peter Finn
Does the car part in the image belong to the engine or transmission?
Transmission
Engine
The sump is the reservoir where the oil used to lubricate the engine sits when it is not running.

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Crankshaft
n/a
Does the car part in the image belong to the engine or transmission?
Transmission
Engine
Combustion in the engine causes the pistons to move. This, in turn, moves the crankshaft and moves the car forward or backward, depending on the gear selected.
Valves - Engine
Youtube via NA Nubilous
Does the car part in the image belong to the engine or transmission?
Engine
The valves within an engine open and close in sequence to let the air and fuel mixture in. They then seal when combustion takes place and finally let the gases out.
Transmission
Ring Gear - Transmission
Youtube via realfixesrealfast
Does the car part in the image belong to the engine or transmission?
Engine
Transmission
The ring gear is the large outer gear in the planetary gear system in the transmission.

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Sun Gear - Transmission
Youtube via CascadeTransParts
Does the car part in the image belong to the engine or transmission?
Engine
Transmission
The sun gear is the central gear in the planetary gear system in the transmission.
Turbocharger - Engine
Youtube via Auto Tech Labs
Does the car part in the image belong to the engine or transmission?
Transmission
Engine
In simple terms, a turbocharger pushes more air into the engine, which in turn creates more power as more fuel is burned.
Radiator
n/a
Does the car part in the image belong to the engine or transmission?
Transmission
Engine
This reservoir holds coolant which is used to keep the engine cool during operation. It also helps to regulate the coolant to the right temperature before passing it back into the system.

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Seals and gaskets - Transmission
Youtube via Suburban Speed Shop
Does the car part in the image belong to the engine or transmission?
Engine
Transmission
There are various seals and gaskets found within the transmission system. This ensures that the vital hydraulic fluid does not leak out of the system.
Clutch piston - Transmission
Youtube via Frank 87
Does the car part in the image belong to the engine or transmission?
Transmission
Clutch pistons help to engage the clutch and activate the gearshift in a manual transmission vehicle.
Engine
Starter Motor - Engine
Youtube via Ratchets And Wrenches
Does the car part in the image belong to the engine or transmission?
Transmission
Engine
A starter motor is another crucial part in starting your car. When you turn the key, it starts the combustion process by rotating the engine.

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Clutch pack - Transmission
Youtube via Jonathan Hux
Does the car part in the image belong to the engine or transmission?
Engine
Transmission
Made from steel, clutch packs are found in the transmission on drums within it. These drums will rotate when the pack is not pressed against it to grip it. Stopping their rotating means components within the transmission interact in different ways, depending on what the driver is doing in terms of gear selection.
Planetary Gear Set
Youtube via WeberAuto
Does the car part in the image belong to the engine or transmission?
Engine
Transmission
The planetary gear system within a transmission system is attached to the planet carrier which is then connected to the output shaft.
Spark Plugs - Engine
Youtube via Engineering Explained
Does the car part in the image belong to the engine or transmission?
Engine
Essentially, spark plugs are the most important factor in starting a vehicle. They provide the spark that ignites the air-fuel mixture which starts the motor and keeps it running.
Transmission

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Flywheel
n/a
Does the car part in the image belong to the engine or transmission?
Engine
Transmission
Found in manual transmissions, a flywheel does two things. First of all, it provides a toothed gear for the starter motor to engage on, rotating the engine on startup. Secondly, it is used to push torque from the car's engine to its transmission by use of the clutch.
Clutch Cable - Transmission
Youtube via JaegerWrenching
Does the car part in the image belong to the engine or transmission?
Transmission
This steel cable connects the clutch linkage in the transmission to the clutch pedal. It is only found on a car with a manual transmission.
Engine
Clutch Pedal - Transmission
Youtube via autoedit
Does the car part in the image belong to the engine or transmission?
Transmission
The clutch pedal is pressed by the driver which in turn engages the clutch plate and allows for the a new gear to be selected.
Engine

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Intercooler - Engine
Youtube via mcmtv2
Does the car part in the image belong to the engine or transmission?
Engine
Usually found on turbocharged engines, an intercooler reduces the temperature of the air compressed by the turbocharger. This makes it denser when it is pushed through the engine.
Transmission
Ignition System - Engine
Youtube via NGKNTK EMEA
Does the car part in the image belong to the engine or transmission?
Engine
The ignition system helps to start the engine by generating a spark that causes the air-fuel mixture within the combustion chamber to ignite.
Transmission
Shifter - Transmission
Youtube via MTIRacingVBlog
Does the car part in the image belong to the engine or transmission?
Engine
Transmission
The shifter is found on cars with a manual transmission. When the clutch pedal is pushed in, the clutch plate is engaged and a new gear can be selected using the shifter.

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Distributor - Engine
Youtube via Myvintageiron7512
Does the car part in the image belong to the engine or transmission?
Engine
Part of the ignition system, a distributor makes sure the spark plugs fire in the right order by directing high voltage into the correct one at the correct time.
Transmission
Piston - Engine
Youtube via PowerModz
Does the car part in the image belong to the engine or transmission?
Transmission
Engine
As fuel burns, it pushes the pistons within the engine which in turn rotate the crankshaft which then moves the vehicle, either forward or backward, determined by the gear selected.
Air intake manifold - Engine
Youtube via speedkar99
Does the car part in the image belong to the engine or transmission?
Engine
This regulates the amount of air that enters the engine while it is running. This then controls the amount of fuel entering the engine.
Transmission

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Hydraulic fluid - Transmission
Youtube via Richard Lloyd
Does the car part in the image belong to the engine or transmission?
Transmission
Hydraulic fluid in the transmission system ensures that all moving parts, of which there are many, remain lubricated.
Engine
Electronic Control Unit - Engine
Youtube via Vincent Au
Does the car part in the image belong to the engine or transmission?
Engine
The electronic control unit, also called an electronic control module, helps to ensure optimum engine performance in modern engines. In older cars, this part does not exist.
Transmission
Oil Filter - Engine
Youtube via Cruzdelasadas technical
Does the car part in the image belong to the engine or transmission?
Engine
An oil filter removes impurities that may have found their way into the engine oil.
Transmission

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