What is the purpose of the cooling system hose?

It is a flexible or rigid element connecting the components of the cooling system, which allows coolant to flow between the engine, radiator and water pump.

What is the difference between a silicone hose and a rubber hose?

Silicone hoses are more resistant to high temperatures (up to 200°C), making them ideal for sports or tuning applications. Rubber hoses are standard on most passenger cars and offer good flexibility.

How do you know if your cooling hose needs replacing?

Symptoms include leaks, cracks, flattening, or soft material. It's also worth looking for signs of corrosion at the joints.

Are the cooling system hoses universal?

No. Each car model has hoses with specific diameters, lengths, and bend angles – so compatibility with a specific engine or OEM designation is important.

Do cooling system hoses affect engine performance?

Yes, indirectly. An efficient cooling system maintains optimal operating temperatures, which translates into stable power and lower fuel consumption.

How often should you replace your cooling system hoses?

It is recommended to inspect it every 40,000–60,000 km and replace it approximately every 5 years, especially if there are visible signs of wear.

Where to buy cooling system hoses in good condition?

It is best to buy from a trusted store like Global Parts, where each part undergoes quality control and is described in terms of its fit for specific vehicle models.

Cooling system hoses and lines

At Global Parts, we offer a wide selection of original used car parts, including cooling system hoses and lines for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. The cooling system hoses and lines we offer are quality-controlled, ensuring you receive a top-quality product.

More information

Make

Category

Condition

In Stock

Price

Products in promotion

Part no. 06D121065L

Audi A4 B7 Water Coolant Pipe Hose Line 2.0 TFSI 06D121065L

Product currently unavailable

Part no. 8J0121109A

Audi TT 8J 2.0 TFSI Water Hose Cooling Coolant Radiator Pipe Line 8J0121109A

Product currently unavailable

Part no. 8K0121081F

Audi A5 8T 3.0 TDI CCWA Diesel Coolant Hose Line Pipe Tube 8K0121081F 059121399E

Product currently unavailable

Part no. 5N0122051

Audi Q3 8U Water Hose Cooling Radiator Coolant Pipe Line 5N0122051

Product currently unavailable

Part no. 7L8122096

Audi Q7 4L 3.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 7L8122096

Product currently unavailable

Part no. 3C0121157CC

Audi A3 8P 2.0 TDI Diesel Water Hose Cooling Coolant Pipe Line 3C0121157CC

Product currently unavailable

Part no. 1K0121096BH

Audi A3 8P Water Hose Cooling Radiator Coolant Pipe Line 1K0121096BH

Product currently unavailable

Part no. 06D121132A

Audi A4 B7 Water Coolant Flange Pipe Hose Line 2.0 TFSI 06D121133C

Product currently unavailable

Part no. 5Q0121051K

Audi S3 8V Water Pipe Hose Engine Coolant Cooling Line 5Q0121051K

Product currently unavailable

Part no. 5N0122051BL

Audi Q3 8U Water Hose Cooling Radiator Coolant Pipe Line 5N0122051BL

Product currently unavailable

Part no. 059121071AN

Audi A4 B7 2.7 TDI BPP Radiator Coolant Water Hose Line Tube Pipe 059121071AN

Product currently unavailable

Part no. 059121065DT

Audi SQ5 8R 3.0 TDI CGQB Radiator Water Hose Line Tube Pipe 059121065DT

Product currently unavailable

Part no. 079121071BN

Audi A5 S5 8T 4.2 V8 FSI Solid Coolant Pipe Water Hose Line 079121071BN

Product currently unavailable

Part no. 03G121071A

Audi A4 B7 2.0 TDI Water Hose Radiator Coolant Pipe Line 03G121071A

Product currently unavailable

Part no. 079121070CK

Coolant Pipe Audi A6 C7 S7 4G 4.0 TFSI Water Hose Line 079121070CK

Product currently unavailable

Part no. 5WA121070C

Audi A3 8Y Coolant Water Hose Line Tube Pipe 5WA121070C

Product currently unavailable

Part no. 03G121065R

Audi A4 B7 2.0 TDI BRE Water Coolant Pipe Hose Line 03G121071A

Product currently unavailable

Part no. 8K0121164E

Audi A4 B8 Water Pipe Hose Line Engine Cooling Coolant Unit Hose 8K0121164E

Product currently unavailable

Part no. 079121065M

Audi A4 B6 4.2 Petrol Coolant Pipe Cooler Water Hose 079121065M

Product currently unavailable

Part no. 3C0121157AA

Audi A3 8P Engine Water Coolant Pipe Hose Line 1.9 TDI 3C0121157AA

Product currently unavailable

Part no. 6C0122109E

Audi A1 8X 1.6 TDI Diesel Engine Water Coolant Pipe Hose Line Tube 6C0122109E

Product currently unavailable

Part no. 079121083H

Audi A7 4G 4.0 TFSI Coolant Hose Engine Water Pipe Front Left N/S 079121083H

Product currently unavailable

Part no. 8K0121081BG

Audi A4 B8 A5 8T 3.0 TDI Rear Coolant Water Breather Pipe Line Hose 8K0121081BG

Product currently unavailable

Part no. 8K0145673AM

Audi A5 8T 2.0 CNCD Petrol Intercooler Pipe Hose Line Tube 8K0145673AM

Product currently unavailable

Part no. 057121073C

Audi Q7 4L 4.2 TDI Coolant Hose Pipe Hose Line 057121073C

Product currently unavailable

Part no. 3C0122101EN

Audi A3 8P 2.0 TDI Water Hose Radiator Coolant Pipe Line 3C0122101EN

Product currently unavailable

Part no. 8N0121051B

Audi TT 8N Water Hose Cooling Coolant Radiator Pipe Line 8N0121051B

Product currently unavailable

Part no. 06F121132G

Audi S3 8P 2.0 TFSI CDLA Coolant Flange Pipe Hose Line 06F121132G

Product currently unavailable

Part no. 5N0121070M

Audi A3 8P Water Hose Cooling Radiator Coolant Pipe Line 5N0121070M

Product currently unavailable

Part no. 4F0121101

Audi A6 C6 FL Coolant Water Quick Connect Heater Pipe Hose 4F0121101

Product currently unavailable

Part no. 8E0121055N

Audi A4 B7 1.9 TDI Water Pipe Engine Cooling Radiator Coolant Hose 8E0121055N

Product currently unavailable

Part no. 8K0122101G

Audi A5 8T Heater Water Cooling Coolant Pipe Hose Line 8K0122101G

Product currently unavailable

Part no. 1K0122063G

Audi S3 8P 2.0 TFSI CDLA Petrol Engine Water Coolant Pipe Hose Line 1K0122063G

Product currently unavailable

Part no. 5Q0121070BR-2

Audi A3 8V 2.0 TFSI Water Hose Engine Coolant Cooling Pipe Line 5Q0121070BR

Product currently unavailable

Part no. 05L122157AS

Audi A4 B9 A5 F5 Water Cooling Coolant Pipe Hose Line 2.0 TDI 05L122157AS

Product currently unavailable

Part no. 05L122157CG

Audi A4 B9 A5 F5 Engine Cooling Coolant Pipe Line Hose 2.0 TDI 05L122157CG

Product currently unavailable

Part no. 8Y0121103

Audi RS3 8Y 2.5 TFSI Engine Water Cooling Pipe Hose Outer Left N/S 8Y0121103

Product currently unavailable

Part no. 8V0122157

Audi RS3 8Y 2.5 TFSI Engine Water Cooling Pipe Hose Line Tube Center 8V0122157

Product currently unavailable

Part no. 5Q0122051CT

Audi A3 8V Water Pipes Hoses Coolant Cooling Line 5Q0122051CT

Product currently unavailable

Part no. 1K0121096R

Audi A4 B7 2.0 TDI Diesel Water Hose Cooling Coolant Pipe Line 1K0121096R

Product currently unavailable

Part no. 8E2819373

Audi A4 B7 1.9 TDI Water Pipe Engine Cooling Radiator Coolant Hose 8E2819373

Product currently unavailable

Part no. 059121399

Coolant Hose Audi A6 C6 A4 B7 Q7 4L Diesel Left N/S Pipe Line Tube 059121399

Product currently unavailable

Part no. 06D121133A

Audi A4 B7 Water Coolant Engine Cooling Flange Pipe Hose Line 06D121133A

Product currently unavailable

Part no. 1K0122157D

Audi A4 B7 2.0 TDI Diesel Water Hose Cooling Coolant Pipe Line 1K0122157D

Product currently unavailable

Part no. 4L0121101

Audi Q7 4L 3.0 TDI Coolant Water Hose Line Tube Pipe 4L0121101

Product currently unavailable

Part no. 8W0145947E

Audi A4 B9 A5 F5 2.0 TDI Diesel Engine Water Coolant Pipe Hose Line 8W0145947E

Product currently unavailable

Part no. 06L133054

Audi A3 8Y Quick Coupling Coolant Flange Air Intake Hose Line Petrol 06L133054

Product currently unavailable

Part no. 6R0121070L

Audi A1 8X 1.4 TSI Petrol Engine Water Hose Coolant Pipe Line 6R0121070L

Product currently unavailable

Part no. 8K0819376F

Audi A4 B8 Q5 8R A5 8T Water Coolant Hose Pipe Line TFSI Petrol 8K0819376F

Product currently unavailable

Part no. 8K0819337A

Audi A4 B7 2.0 TDI BRE Diesel Water Coolant Pipe Hose Line Tube 8K0819337A

Product currently unavailable

Part no. 1K0121157BJ

Audi A4 B7 2.0 TDI Diesel Water Hose Cooling Coolant Pipe Line 1K0121157BJ

Product currently unavailable

Part no. 4G0122101G

Audi A6 C7 2.0 TDI CGLC Water Coolant Hose Line Tube Pipe 4G0122101G

Product currently unavailable

Part no. 7L8121073J

Audi Q7 4L 3.0 TDI Coolant Hose Radiator Pipe Water Cooling Line 7L8121073J

Product currently unavailable

Part no. 5N0122101AT

Audi Q3 8U 2.0 TDI DFTA Engine Radiator Upper Water Coolant Hose 5N0122101AT

Product currently unavailable

Part no. 04E103474G

Audi A3 8V Tank Crankcase Breather Vent Pipe Line 04E103474G

Product currently unavailable

Part no. 06A121069C

Audi TT 8N Water Coolant Hose Pipe Cooling Line 1.8T Petrol 06A121069C

Product currently unavailable

Part no. 1K0121157AG

VW Audi Seat Skoda 1.9 BXE TDI Diesel Water Hose Coolant Line 1K0121157AG

Product currently unavailable

Part no. 4F0121101G

Audi A6 C6 Water Hose Cooling Radiator Coolant Pipe Line 4F0121101G

Product currently unavailable

Part no. 03L121065A

Audi A3 8P Water Coolant Pipe Hose Tube 2.0 TDI CBAB 03L121065A

Product currently unavailable

Part no. 5Q0121070BC

Audi Q3 8U Water Hose Engine Coolant Cooling Pipe Line 2.0 TDI 5Q0121070BC

Product currently unavailable

Part no. 8K0317825AE

Oil Pipe Audi A4 B8 A5 8T 2.0 TDI Automatic Gearbox Cooler Line 8K0317825AE

Product currently unavailable

Part no. 5N0122101T

Audi Q3 8U Water Hose Cooling Coolant Radiator Pipe Line 5N0122101T

Product currently unavailable

Part no. 03C121070M

Audi A1 8X Water Pipe Hose Line Engine Cooling Coolant Unit Hose 03C121070M

Product currently unavailable

Part no. 8E0121049L

Audi A4 B7 2.0 Petrol Water Hose Cooling Radiator Coolant Pipe Line 8E0121049L

Product currently unavailable

Part no. 8V0122101C

Audi RSQ3 F3 Water Hose Cooling Coupling Coolant Radiator Pipe Line 8V0122101C

Product currently unavailable

Part no. 80A122449H

Audi SQ5 3.0 TFSI Water Hose Cooling Coolant Radiator Pipe Line 80A122449H

Product currently unavailable

Part no. 03C103465AA

Audi A1 8X Water Pipe Hose Line Engine Cooling Coolant Unit Hose 03C103465AA

Product currently unavailable

Part no. 1K0122101FP

Audi A3 8P 1.6 TDI Water Hose Radiator Coolant Pipe Line 1K0122101FP

Product currently unavailable

Part no. 8K0121081BJ

Audi A4 B8 2.0 TDI Radiator Water Coolant Pipe Hose Tube Line 8K0121081BJ

Product currently unavailable

Part no. 8E0121101AA

Audi A4 B7 2.0 TDI Water Hose Cooling Coolant Radiator Pipe Line 8E0121101AA

Product currently unavailable

Part no. 079133240AR

Audi S7 4G8 Vacuum Solenoid Coolant Line Tube Hose Pipe 4.0 TFSI 079133240AH

Product currently unavailable

Part no. 8K0121081CK

Audi A4 B8 Water Coolant Ventilation Breather Pipe Hose Line 2.0 TDI 8K0121081CK

Product currently unavailable

Part no. 1K0121086T

Audi A3 8P 1.9 TDI Diesel Coolant System Rubber Hose Pipe Line 1K0121086T

Product currently unavailable

Part no. 8W0122291AK

Audi A4 B9 35 TFSI DMSB Petrol Water Coolant Hose Line Tube Pipe 8W0122291AK

Product currently unavailable

Part no. 3Q0121070AG

Audi Q2 GA 2.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 3Q0121070AG

Product currently unavailable

Part no. 06A103212A

Audi A3 8P Water Hose Cooling Radiator Coolant Pipe Line 1.6 Petrol 06A103212A

Product currently unavailable

Part no. 057121083S

Audi A8 D4 Water Cooling Coolant Pipe Hose Line Tube 4.2 TDI Diesel 057121083S

Product currently unavailable

Part no. 06A121065CB

Audi A3 8P Coolant Hose Water Pipe Cooling Line 1.6 Petrol 06A121065CB

Product currently unavailable

Part no. 5WA121049L

Audi Seat Skoda Volkswagen Water Hose Radiator Coolant Pipe Line 5WA121049L

Product currently unavailable

Part no. 059121737AP

Audi A4 B9 Q7 4M Q8 Mk1 3.0 Diesel Coolant Control Regulating Valve 059121737AP

Product currently unavailable

Part no. 06A121065BQ

Audi S3 TT 8N 1.8T Water Pipe Coolant Supply Metal Hose 06A121065BQ

Product currently unavailable

...

Showing 496-576 of 576 products

Flexible and rigid cooling hoses – durability and fit for popular models

Rubber and silicone hoses for cooling systems – temperature and pressure resistance

Cooling system hoses and lines are key components that enable coolant circulation between the radiator, water pump, thermostat, and engine. Their efficiency and tightness are essential for proper cooling system operation and preventing engine overheating. At Global Parts, you'll find a wide selection of used car parts., including cooling system hoses and pipes, ideal for BMW , Audi , Mercedes , Volkswagen , Mini and others .

What is the difference between flexible and rigid cooling system hoses?

Flexible cooling hoses made of EPDM rubber or silicone help compensate for engine vibrations and pressure changes. Rigid hoses (e.g., aluminum or PA12 plastic) are used where dimensional stability and resistance to high temperatures—up to 150–180°C —are required. Modern vehicles often use a combination of both types, ensuring optimal coolant flow and longer system life.

What are the functions of cooling system hoses and pipes ?

Cooling system hoses and lines play a key role in regulating engine operating temperature: Coolant Transport – Hoses and lines connect key components of the cooling system, allowing coolant to flow throughout the system. Overheating Prevention – By circulating the coolant, they maintain the proper operating temperature of the engine, preventing it from overheating. Adequate flexibility and tightness – The materials from which the lines and hoses are made ensure their resistance to high temperatures, pressure and the effects of coolant. Efficient cooling system hoses and lines are essential for the efficient operation of the entire cooling system.

Construction and technical parameters of cooling pipes

A typical cooling system hose consists of several layers: a protective outer layer, a reinforcing layer (reinforced with synthetic fiber), and an inner layer that is chemically resistant to coolants. The operating pressure of such hoses is typically 1–2 bar, and their peak strength can reach up to 5 bar . The use of appropriate materials prevents hose cracking during rapid temperature changes, especially in cars with turbocharged engines. Cooling system hoses, commonly known as radiator hoses, can be made of various materials – most commonly EPDM rubber or silicone, which can withstand temperatures from -40°C to as much as +150°C. High-performance vehicles, such as the BMW M series or Audi S-Line, use silicone hoses with a reinforced textile construction, ensuring longer life and resistance to operating pressures above 2 bar. Flexible hoses compensate for engine vibrations, while rigid sections (e.g., aluminum) ensure stability at high fluid flow rates.

Why is it worth taking care of cooling system hoses and pipes ?

Damaged or worn cooling system hoses and lines can lead to serious cooling system problems. Common symptoms include: Coolant Leak – Leaks in lines or hoses can lead to leaks and a drop in coolant level. Engine Overheating – Restricted coolant flow due to damaged hoses can lead to engine overheating. Noises and vibrations – Improper mounting or damaged hoses can cause vibrations and noises during system operation. At Global Parts, we offer original used cooling system hoses and lines that have undergone detailed quality tests, ensuring their durability and tightness.

Symptoms of damage and compatibility of cooling hoses - table

Fault symptom	Possible cause	Recommended action
Coolant level drop	Microleak in the pipe	Cooling system hose replacement
Engine overheating	Clogged hose or kink	Checking for patency, replacement
Vibration or gurgling	Loose cable connections	Tightening the clamps, checking the handles
Low engine operating temperature	Too much flow – no resistance	Thermostat operation check

How to choose the right cooling system hoses and pipes ?

When selecting cooling system hoses and lines, there are several key aspects to consider: Vehicle-specific fit – Every cooling system has its own specific technical requirements. At Global Parts, you'll find cooling system hoses and lines perfectly suited to BMW , Audi , Mercedes , Volkswagen , Mini , and more. Technical Condition – Make sure that the lines and hoses are free from cracks, bulges and other damage. Material resistance – Choose hoses and lines made of materials that are resistant to high temperatures and operating fluids.

Parts selection procedure

To select the correct cooling system hose, it's best to use the vehicle's VIN or the OEM part number. The Global Parts system automatically searches by engine code or part number, minimizing the risk of incorrect matching. This ensures that the hoses are fully compatible with the water pump, radiator, and thermostat, ensuring the entire system maintains its factory seal.

Why choose used cooling system hoses and pipes ?

Used car parts , such as cooling system hoses and lines, are a practical solution that allows you to save money while maintaining high quality. By choosing used cooling system hoses and lines, you gain: Lower costs – Used components are much cheaper than new ones, but offer equally high quality. Ecology – Recycling car parts supports environmental protection and reduces waste. A wide range – In our store you will find cooling system hoses and pipes for the most popular car brands.

How to take care of cooling system hoses and pipes ?

To ensure that cooling system hoses and lines function reliably for a long time, it is important to follow a few rules: Regularly check the condition of lines and hoses to prevent coolant leaks. Monitor the coolant level – a sudden drop may indicate a leak in the lines. Replace damaged or worn components in time to avoid more serious cooling system problems. If you need a replacement, you'll find the right used car parts at Global Parts that will restore full efficiency to your cooling system.

FAQ - Frequently asked questions about cooling system hoses and lines

Question	Answer
What is the purpose of the cooling system hose?	It is a flexible or rigid element connecting the components of the cooling system, which allows coolant to flow between the engine, radiator and water pump.
What is the difference between a silicone hose and a rubber hose?	Silicone hoses are more resistant to high temperatures (up to 200°C), making them ideal for sports or tuning applications. Rubber hoses are standard on most passenger cars and offer good flexibility.
How do you know if your cooling hose needs replacing?	Symptoms include leaks, cracks, flattening, or soft material. It's also worth looking for signs of corrosion at the joints.
Are the cooling system hoses universal?	No. Each car model has hoses with specific diameters, lengths, and bend angles – so compatibility with a specific engine or OEM designation is important.
Do cooling system hoses affect engine performance?	Yes, indirectly. An efficient cooling system maintains optimal operating temperatures, which translates into stable power and lower fuel consumption.
How often should you replace your cooling system hoses?	It is recommended to inspect it every 40,000–60,000 km and replace it approximately every 5 years, especially if there are visible signs of wear.
Where to buy cooling system hoses in good condition?	It is best to buy from a trusted store like Global Parts, where each part undergoes quality control and is described in terms of its fit for specific vehicle models.

Summary: Cooling System Hoses and Pipes at Global Parts Automotive Store

Cooling system hoses and lines are key components that ensure efficient coolant flow and maintain optimal engine operating temperatures. By maintaining their technical condition, you can avoid costly repairs and extend the engine's lifespan. The Global Parts automotive store invites you to browse our extensive selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , and more, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .

bmw car parts used car parts genuine parts volkswagen genuine parts motor store genuine used mercedes parts original used parts for mini bmw coolant hoses mercedes coolant hoses mini coolant hoses audi coolant hoses volkswagen coolant hoses