Different Subaru Parts Explained: From Engine to Exhaust

September 7, 2023

Have you ever wondered what lies beneath the sleek exterior of a Subaru car? Subaru cars are made of different components and systems that are carefully designed and engineered to work seamlessly together. From the raw power generated within the engine to the finely tuned mechanics of the exhaust system , every facet of a Subaru vehicle plays a crucial role in shaping its performance, reliability, and distinctive driving experience. Let’s explore some important parts of a Subaru, from the engine to the exhaust.

The Engine

The engine is the heart of the vehicle and provides the power necessary for its operation. Subaru engines are often horizontally opposed (boxer) engines, where the cylinders are arranged in a flat layout. This design helps lower the vehicle’s center of gravity and contributes to better balance and stability. Subaru engines also typically feature technologies such as Subaru’s Symmetrical All-Wheel Drive system and Subaru Intelligent Drive ( SI-DRIVE ), which work in harmony with the engine to optimize traction and control.

Transmission

Subaru vehicles often come with a variety of transmission options, including manual transmissions and continuously variable transmissions . The transmission transfers power from the engine to the wheels, allowing the vehicle to change speed and direction.

Differential

The differential is a part of the drivetrain that allows the wheels to rotate at different speeds while maintaining power distribution. Subaru’s Symmetrical All-Wheel Drive system helps ensure power is distributed evenly between all four wheels for better traction and handling.

Suspension

Subaru’s suspension systems comprise key components like shock absorbers , control arms , struts , springs , sway bars , and bushings . These elements collaborate to provide stability, and help to absorb shocks and vibrations from the road, providing a smooth and controlled ride. The symmetrical all-wheel-drive system and features like Active Torque Vectoring further contribute to precise cornering and adaptable traction, ensuring a balanced ride on a variety of terrains.

Brakes

Subaru vehicles are equipped with disc brakes on all four wheels for effective stopping power. The brake system includes components like brake calipers , brake pads , and brake rotors .

Driveshaft and Axles

The driveshaft transfers power from the transmission to the differential or directly to the wheels. Axles transmit power from the differential to the wheels. Subaru’s Symmetrical All-Wheel Drive system uses a balanced design to optimize power distribution.

Electrical System

The electrical system includes the battery , alternator , starter , and various sensors . It powers the vehicle’s electrical components, such as lights , infotainment , and climate control systems .

Fuel System

The fuel system delivers fuel from the tank to the engine, where it is mixed with air and burned to produce power. Components include the fuel tank , fuel pump , fuel injectors , and fuel lines .

Cooling System

The cooling system prevents the engine from overheating. It includes the radiator , thermostat , water pump , and coolant . Subaru vehicles often employ a horizontally opposed engine layout for efficient cooling.

Steering System

The steering system allows the driver to control the direction of the vehicle. Subaru’s vehicles use various steering mechanisms, including rack-and-pinion and electric power-assisted steering systems.

Oil Circulation System

Engines require lubrication to reduce friction and heat. The oil circulation system, including the oil pump , lubricates various engine components, ensuring smooth operation and longevity.

Exhaust System

The exhaust systems consist of components like the exhaust manifold , catalytic converter , muffler , exhaust pipes , and oxygen sensors . These parts work together to expel exhaust gases, reduce noise, and enhance engine performance. The system ensures efficient emissions control and optimal engine operation, while sport-tuned variations in certain models may offer a distinctive and dynamic exhaust note, further enhancing the driving experience.

Excellent Subaru Repair and Maintenance

A person's hands use a wrench to repair a large, dirty engine block with visible internal cylinders.

Are you looking for a tested and trusted Auto repair shop for your Subaru maintenance? Look no further; Professional Automotive is here to help you. At Professional Automotive, we stand ready to address any concerns your Subaru may encounter. Our dedicated team of experts is well-versed in diagnosing and resolving issues, ensuring your vehicle remains in optimal condition. We are always pleased to serve residents in Marlborough, MA, and beyond. Our commitment to excellence extends to every repair and maintenance task we undertake. Schedule an appointment with us today and experience the difference in our service!

What Happens If You Wait Too Long or Skip an Engine Oil Change? | Professional Automotive
June 26, 2026
Professional Automotive in Marlborough, MA, explains what happens if you wait too long or skip an engine oil change.
7 Most Common Mercedes-Benz Problems Drivers Should Repair ASAP | Professional Automotive
June 19, 2026
Professional Automotive in Marlborough, MA, explains common Mercedes-Benz problems drivers should repair as soon as possible.
How Volvo Safety Engineering Helped Change the Future of the Automotive Industry | Professional Auto
June 12, 2026
Professional Automotive in Marlborough, MA, explains how Volvo safety engineering helped shape the modern automotive industry.
How to Keep Your Volkswagen Reliable With Regular Preventive Maintenance as Mileage Adds Up | Profes
June 5, 2026
Professional Automotive in Marlborough, MA, explains how preventive maintenance helps keep Volkswagen vehicles reliable as mileage adds up.
5 Auto Suspension Repair Clues Hidden In Clunks, Bounces, And Uneven Tire Wear | Professional Automo
May 29, 2026
Professional Automotive in Marlborough, MA, explains clues to suspension repair hidden in clunks, bouncing, and uneven tire wear.
A mechanic wearing black gloves holds a cylindrical car oil filter above an engine during maintenance.
September 11, 2025
When the dashboard of your Subaru displays the ‘no oil pressure’ warning light, it indicates that the oil pressure in the oil line is low, and the components are not receiving adequate oil due to this low pressure. Proper oil pressure ensures the engine oil reaches the engine components. This helps in the proper lubrication […]
Two mechanics in gray uniforms working on the underside of a car lifted on a hydraulic hoist in a garage.
August 11, 2025
The front wheel bearing of your Honda bears the crucial responsibility of holding the front wheels attached to the axle, all while ensuring unobstructed circulation of the wheel with minimal friction. Apart from smooth operation, bearings also assist in supporting the vehicle’s weight, dampening vibrations while driving, and assisting in precision steering. It also ensures […]
Close-up view of an automobile's front suspension, showing the brake caliper, CV axle, and control arm.
July 11, 2025
The suspension system in your Acura absorbs the impact from the road to the vehicle and provides the drivers and passengers with a smooth and comfortable ride. Not only does it assist in a comfortable and smooth ride, but it also ensures safety during driving. Acura vehicle models are specifically designed to provide top-notch suspension, […]
A mechanic wearing orange work gloves inspects the engine of a car.
June 11, 2025
In modern Lexus vehicles, the high-pressure fuel pump (HPFP) is a crucial component of the fuel delivery system. It is found in direct-injection engines, where the fuel is directly injected into the combustion chamber. The high-pressure fuel pump receives fuel from the low-pressure pump and pushes it into the combustion chamber at very high pressure. […]
A hand opening the radiator cap under the hood of a car engine.
May 11, 2025
As a Mini owner, you understand that keeping your vehicle in top shape is key to make sure your Mini lasts longer and performs at its best.  One part of your Mini’s engine system is the PCV valve (Positive Crankcase Ventilation valve). When this valve stops working the way it should, it can lead to […]