Truck air conditioning system parts

Truck air conditioning system parts

A properly functioning air conditioning system is essential for a comfortable and safe working environment in the truck cab. Besides providing cooling, the system also helps regulate humidity and quickly demist fogged-up windows. At BAS Parts & Tyres, you'll find a wide range of truck air conditioning system parts for various makes and models.

From A/C compressors and condensers to evaporators, hoses, pipes and receiver driers, every component contributes to the reliable operation of the air conditioning system. Replacing worn or defective parts in time helps prevent further damage to the A/C system and keeps the cab climate comfortable.

Which parts make up a truck air conditioning system?

A truck air conditioning system consists of several components that work together to remove heat from the cab. If one component fails to function properly, cooling performance may decrease or the entire system may stop working.

A/C compressor

The A/C compressor pressurizes the refrigerant and circulates it throughout the air conditioning system. It is usually driven by the engine and is one of the most important components of a truck air conditioning system.

A/C condenser

The A/C condenser removes heat from the refrigerant. It is typically located at the front of the truck, where airflow and cooling fans help cool the refrigerant.

A/C evaporator

The evaporator absorbs heat from the air inside the cab. The cooled air is then blown into the cab by the blower fan. A dirty or damaged evaporator can reduce airflow and cooling performance.

Receiver drier and accumulator

The receiver drier removes moisture and contaminants from the refrigerant. This helps prevent corrosion, blockages and damage to other components. Depending on the type of A/C system, a truck may be equipped with either a receiver drier or an accumulator.

Expansion valve

The expansion valve regulates how much refrigerant flows to the evaporator. A faulty expansion valve may cause insufficient cooling or result in the evaporator freezing.

A/C pipes and hoses

A/C pipes and hoses transport refrigerant between the different components. Damage, porous hoses or leaking connections can lead to refrigerant loss and reduced A/C performance.

Cooling fan and cabin blower fan

Fans ensure sufficient airflow through the condenser and throughout the cab. If a fan fails, the air conditioning system may not cool properly, especially at low vehicle speeds or while stationary.

Pressure and temperature sensors

Sensors monitor the pressure and temperature within the A/C system. They ensure the system operates safely and efficiently. A faulty sensor may prevent the compressor from engaging or cause the system to operate irregularly.

How do you recognize a faulty truck air conditioning system?

Problems with a truck air conditioning system often develop gradually. Recognizing the first warning signs early can help prevent costly repairs and unnecessary downtime.

• The air coming from the vents is no longer cold.
• The A/C only cools while driving.
• Very little air comes from the air vents.
• The A/C makes rattling, squealing or ticking noises.
• There is an unpleasant smell inside the cab.
• The A/C compressor does not engage.
• The A/C compressor runs continuously.
• There is a visible leak around pipes or connections.
• The windows fog up quickly.

Common causes of a truck air conditioning system not working

Low refrigerant level

A low refrigerant level is usually caused by a leak. Simply refilling the refrigerant is often not a permanent solution. The system should first be inspected for leaking hoses, seals, connections or other damaged components.

Faulty A/C compressor

Wear, insufficient lubrication or contamination can damage the A/C compressor. Internal damage may release metal particles into the system. In that case, all other A/C components should also be carefully inspected and cleaned.

Blocked receiver drier

A saturated or blocked receiver drier restricts refrigerant flow. This reduces cooling performance and may cause the system pressure to become too high or too low.

Faulty expansion valve

If the expansion valve does not open or close correctly, either too much or too little refrigerant flows to the evaporator. This can cause poor cooling performance, irregular operation or evaporator freeze-up.

Leaking A/C hose or pipe

Vibrations, wear, stone impacts or corrosion can damage A/C pipes and hoses. Even a small leak can gradually cause refrigerant to escape from the system.

Electrical fault

A faulty relay, blown fuse, damaged wiring or defective pressure sensor can also prevent the air conditioning system from switching on. Therefore, it is important to inspect not only the mechanical components but also the electrical control system.

Choosing the right A/C part for your truck

The correct A/C component depends on the truck make, model, year of manufacture, engine type and the specific A/C system configuration. Parts that look identical can differ in dimensions, connections, pressure ratings and technical specifications.

Always check the OEM number or part number of the existing component. The chassis number can also help identify the correct application. The specialists at BAS Parts & Tyres will be happy to help you find the right truck air conditioning system part.

Air conditioning system parts for different truck brands

At BAS Parts & Tyres, you'll find A/C parts for a wide range of European truck brands, including:

• DAF
• IVECO
• MAN
• Mercedes-Benz
• Renault Trucks
• Scania
• Volvo Trucks

Depending on the application, original, used and remanufactured parts are available. Always check the technical specifications, part number and vehicle compatibility for each product.

New, used and remanufactured A/C parts

New A/C parts

New A/C components are the right choice if you prefer unused parts with a long expected service life. Always verify that the part is suitable for your truck's specific model and year.

Used A/C parts

A used A/C component can be a reliable and cost-effective solution. At BAS Parts & Tyres, used parts are inspected for quality, functionality and visible damage before being offered for sale.

Remanufactured A/C parts

During remanufacturing, worn or damaged components are replaced and the part is thoroughly tested to ensure reliable operation. Remanufactured parts combine quality with a sustainable and cost-effective solution.

Why replace A/C components on time?

Even a minor fault in the air conditioning system can place additional strain on other components. For example, a leak can result in insufficient compressor lubrication, while a faulty fan can cause excessive system pressure. Addressing problems early helps limit consequential damage and prevents unexpected breakdowns.

A well-maintained A/C system also improves driver comfort, alertness and concentration. This is especially important during long journeys and in hot weather conditions.

Order truck air conditioning system parts from BAS Parts & Tyres

BAS Parts & Tyres offers a wide range of truck air conditioning system parts. Thanks to our extensive inventory and the expertise of our specialists, you can quickly find the right component for your vehicle.

When searching, we recommend using the OEM number, part number or chassis number. This reduces the risk of ordering the wrong part and helps get your truck back on the road quickly.