maintenance valve for the air conditioner 21,8x8mm hfo1234yf 1 pc
$4,70
Arrives in 7-8wd
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Magneti Marelli
Magneti Marelli is an internationally recognized Italian brand that offers high-quality automotive parts and electronic components for both the original and aftermarket. With more than 100 years of history, the company is known for its contributions to ignition systems, lighting, powertrains and electronics. Today, Magneti Marelli operates as part of the global Marelli Group, combining innovation, reliability and modern technology.
Magneti Marelli products are ideal for professional workshops and car owners looking for high-quality spare parts that meet original specifications from a reliable manufacturer.
Delivery method
DHL Express
Fast Delivery (Shipping discount for order starting from 700 € or $)
Fast Delivery (Shipping discount for order starting from 700 € or $)
$29,00
Delivery date 2025-06-18
Postal office
To the nearest Postal office
To the nearest Postal office
$18,40
Delivery date 2025-06-30
To nearest Postal office
Economy (Max 2kg ,60cm)
Economy (Max 2kg ,60cm)
$8,70
Delivery date 2025-06-30
Courier International
To Home or Office (Shipping discount for order starting from 700 € or $)
To Home or Office (Shipping discount for order starting from 700 € or $)
$38,90
Delivery date 2025-06-30
$5,30
ADD TO BASKET
Arrives in 3-4wd
Types of car air conditioning oil and how to add oil
As a car owner, you need to regularly change the air conditioning compressor oil to keep your car air conditioning system in good condition and to cool the interior temperature. An AC system can work well and last a long time on a car, of course it needs maintenance and oil changes regularly so that the components working in it do not wear out or get damaged.
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Which hand tool steel is the most durable?
As we all know, different steels are used to make different hand tools. The properties and strength of the steels are given below.
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Car fuel system: Overview and comparison of gasoline and diesel engines
The fuel system of a car is an important part of the engine system, ensuring that fuel moves from the tank to the engine and is burned efficiently. The efficiency of the fuel system directly affects the vehicle's performance, fuel economy and environmental impact. Depending on the type of engine - whether a gasoline engine or a diesel engine - the operating principles and advantages of fuel systems are different.
Functions and components of a car's fuel system
Main features:
Fuel transport: The fuel pump delivers fuel from the tank to the engine.
Fuel cleaning: The fuel filter removes dirt and impurities that can damage the system.
Fuel metering: The system ensures that the correct amount of fuel is delivered according to the engine load and speed.
Fuel preparation for combustion: The fuel that reaches the engine is mixed with air to achieve optimal combustion.
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Car Cooling System: Overview, Working Principle and Important Parts
What is a Car Cooling System?
The car cooling system is one of the most critical systems in an engine, responsible for maintaining the engine temperature within an optimal range, preventing overheating, and ensuring efficient operation. The cooling system removes excess engine heat and contributes to fuel efficiency and engine longevity.
How Does a Car Cooling System Work?
The cooling system operates by circulating coolant, which absorbs engine heat and dissipates it through the radiator. The system includes several key components that ensure proper fluid circulation and heat dissipation.
Key Components of the Car Cooling System
1. Interior Heat Exchanger (Cabin Heater Core)
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Car Air Conditioning: Working Principle, Important Parts and Maintenance
What is a Car Air Conditioning System?
The car air conditioning system (Car Air Conditioner) is a system that ensures a comfortable temperature inside the vehicle by removing excess heat and humidity. The air conditioning system operates in a closed circuit, using a special refrigerant (Freon) to maintain the cooling cycle.
How Does a Car Air Conditioning System Work?
The air conditioning system works on the principle of heat transfer, where heat is removed from the vehicle's interior and released into the external environment. The main stages of this process are:
Compression of the refrigerant: The air conditioning compressor increases the pressure and temperature of the refrigerant.
Heat dissipation: The condenser removes the heat from the high-pressure gas, converting it into a liquid.
Expansion of the refrigerant: The expansion valve lowers the pressure of the liquid refrigerant, cooling it.
Heat absorption: The evaporator absorbs heat from the cabin, turning the liquid refrigerant back into gas.
The cycle continues: The compressor pulls back the heat-absorbed refrigerant, and the process repeats.
Car Air Conditioning / A/C System Diagram
1. A/C Condenser Fan
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