Car Parts That Start With The Letter B

42 Car Parts That Start With The Letter B

Have you ever wondered what car parts start with the letter B? No worries, I’ve got you covered.

In this article, I’ll dive into the world of car parts that start with B and explore their functionalities and importance.

Whether you’re a car enthusiast, mechanic, or simply curious about cars, this article has something for everyone.

So, buckle up and get ready to learn about the various car parts that start with B!


Car Parts That Start With The Letter B

Below are some car parts starting with the letter B (In alphabetical order):

1. Baby Car Seat

A baby car seat is an essential accessory for parents with young children. These seats are specially designed to keep infants and toddlers safe and secure while traveling in a car. They come in various sizes and can be attached to the car’s seat belt or anchor points. It is essential to install and use them correctly to ensure maximum protection for your child.

2. Backup Camera

A backup camera is a useful tool for drivers when reversing their car. It provides a view of the area behind the vehicle, which can be helpful in avoiding collisions or other hazards. Modern backup cameras are often integrated into the car’s infotainment system and offer high-definition displays.

3. Back-Up Lights

Back-up lights, also known as reverse lights, are located at the back of the car and turn on when the driver shifts the car into reverse gear. They provide illumination to the area behind the vehicle, making it easier for the driver to see and maneuver in tight spaces.

4. Balance Shaft Belt

The balance shaft belt is a component of the engine’s timing belt system. It helps to reduce vibration and noise by balancing the engine’s rotation. Over time, the balance shaft belt can wear out and may need to be replaced to ensure smooth engine performance.

5. Ball Joints

Ball joints are crucial components of a car’s suspension system. They connect the steering knuckles to the control arms and allow for the smooth movement of the wheels. Worn-out ball joints can cause steering and suspension problems, including uneven tire wear and poor handling.

6. Battery

The car battery is a critical component of the vehicle’s electrical system. It provides the power necessary to start the engine and run the car’s accessories. A weak or dead battery can cause starting problems, and regular maintenance is essential to keep it functioning correctly.

7. Battery Cable

The battery cable connects the car’s battery to the starter and the ground. It is essential to keep the cable clean and in good condition to ensure the proper flow of electricity.

8. Battery Cable Terminal

The battery cable terminal is the point where the cable connects to the battery. Over time, corrosion can build up on the terminal, which can cause starting and charging problems. Regular cleaning and maintenance of the terminals can help prevent these issues.

9. Battery Control Module

The battery control module, also known as the battery management system, monitors the battery’s voltage, temperature, and other parameters. It helps to optimize the charging and discharging of the battery, prolonging its lifespan and ensuring reliable operation.

10. Battery Terminal

The battery terminal is the point on the battery where the cables connect. It is essential to keep the terminals clean and tight to ensure the proper flow of electricity.

11. Beam Axle

The beam axle is a type of suspension system that connects the wheels to a solid axle. It is a simple and robust design commonly used in rear-wheel-drive vehicles.

12. Bearing Hub

The bearing hub is a critical component of the wheel assembly. It supports the weight of the car and allows the wheel to rotate smoothly. Worn-out or damaged bearing hubs can cause wheel wobbling, noise, and vibration, and should be replaced as soon as possible.

13. Bearings

Bearings are used in various parts of the car, including the engine, transmission, and wheels. They allow for smooth movement and reduce friction, prolonging the lifespan of the components.

14. Bell Housing

The bell housing is a metal casing that covers the flywheel and clutch assembly in manual transmission cars. It provides protection and support for these components and allows for smooth shifting.

15. Belt Tensioner

The belt tensioner is a component of the engine’s serpentine belt system. It helps to maintain the correct tension on the belt, ensuring proper operation of the engine’s accessories.

16. Bench Seat

A bench seat is a type of car seat that can accommodate multiple passengers. It is commonly found in older cars and pickup trucks.

17. Big End

The big end is the larger end of a connecting rod in the engine. It connects the piston to the crankshaft and is subjected to high stresses during engine operation.

18. Bleed Nipple

The bleed nipple is a small valve located on the brake caliper or wheel cylinder. It is used to release air from the brake system during maintenance or repair.

19. Blower Motor

The blower motor is a component of the car’s heating and air conditioning system. It blows air over the heater core or evaporator to provide climate control in the car’s cabin.

20. Body Control Module

The body control module is a computer that controls various electrical systems in the car, including the lighting, wipers, and power windows. It helps to optimize the car’s performance and efficiency.

21. Bonnet

The bonnet, also known as the hood, is the panel that covers the engine compartment. It provides access to the engine for maintenance and repairs.

22. Boot

The boot, also known as the trunk, is the storage compartment located at the rear of the car. It is used to store luggage, tools, and other items.

23. Brake

The brakes are a critical safety component of the car. They slow down or stop the car by applying friction to the wheels. Regular maintenance and inspection of the brake system are essential to ensure their reliable operation.

24. Brake Backing Pad

The brake backing pad is a component of the brake system that provides support and protection to the brake pad. It helps to distribute heat and reduce wear on the brake components.

25. Brake Backing Plate

The brake backing plate is a metal plate that holds the brake components in place. It also provides protection and support to the brake system.

26. Brake Booster

The brake booster is a component of the brake system that amplifies the force applied to the brake pedal, making it easier to stop the car.

27. Brake Caliper

The brake caliper is a component of the brake system that holds the brake pads and applies pressure to the rotor, slowing down or stopping the car.

28. Brake Cooling Duct

The brake cooling duct is a component of the brake system that helps to dissipate heat from the brake components, reducing wear and prolonging their lifespan.

29. Brake Disc

The brake disc, also known as the rotor, is the component that the brake caliper clamps down on to slow down or stop the car. Over time, the brake disc can wear out and may need to be replaced.

30. Brake Drum

The brake drum is a component of the brake system that provides a surface for the brake shoes to press against, slowing down or stopping the car. It is commonly found in older cars and trucks.

31. Brake Fluid

Brake fluid is a critical component of the brake system. It is a hydraulic fluid that transfers force from the brake pedal to the brake components. Regular inspection and replacement of the brake fluid are essential to ensure the reliable operation of the brake system.

32. Brake Light

The brake light is a warning light located on the car’s dashboard. It illuminates when the driver applies the brakes, indicating to other drivers that the car is slowing down or stopping.

33. Brake Linings

Brake linings are the friction material that is pressed against the brake disc or drum to slow down or stop the car. Worn-out brake linings can cause reduced braking performance and should be replaced promptly.

34. Brake Pads

Brake pads are the friction material that is pressed against the brake disc to slow down or stop the car. They are a wear item and should be inspected and replaced regularly.

35. Brake Pedal

The brake pedal is the pedal that the driver presses to apply the brakes. It is connected to the brake booster and the brake system and plays a crucial role in stopping the car.

36. Brake Piston

The brake piston is a component of the brake caliper that applies pressure to the brake pad, slowing down or stopping the car.

37. Brake Pump

The brake pump, also known as the brake master cylinder, is a component of the brake system that applies pressure to the brake fluid, transferring force from the brake pedal to the brake components.

38. Brake Roll

The brake roll is a component of the brake system that helps to distribute heat and reduce wear on the brake components.

39. Brake Rotor

The brake rotor, also known as the brake disc, is the component that the brake caliper clamps down on to slow down or stop the car. Over time, the brake rotor can wear out and may need to be replaced.

40. Brakes

The brakes are a critical safety component of the car. They slow down or stop the car by applying friction to the wheels. Regular maintenance and inspection of the brake system are essential to ensure their reliable operation.

41. Bucket Seat

A bucket seat is a type of car seat that is designed to hold a single occupant. They are commonly found in sports cars and high-performance vehicles.

42. Bumper

The bumper is a component of the car’s body that provides protection in the event of a collision. It absorbs the impact and helps to prevent damage to the car’s body and other components.


In conclusion, car parts that start with B are crucial components of a vehicle’s complex machinery. Regular maintenance and inspection of these components are essential to prolong their lifespan and ensure their reliable operation.

Do you know any other car parts that start with the letter B that are not in the list? Share your answers in the comment section below and I’ll update the list as soon as possible.

And, if you are looking for other car parts that start with other letters, make sure you check my blog posts related to car parts starting with other letters. Such as:

  • Car Parts Start With Letter A
  • Car Parts Start With Letter C
  • Car Parts Start With Letter D
  • Car Parts Start With Letter E

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