What is the construction and purpose of cooling system hoses and pipes?

Cooling system hoses and pipes are coolant circuit elements installed between the engine, radiator, thermostat, heater core, and expansion tank. A typical hose consists of an inner layer resistant to fluid, a reinforcing layer, and an outer cover protecting against temperature and material aging. Depending on the mounting location, it can take the form of a flexible hose or a rigid plastic or metal section.

What are cooling system hoses and pipes used for?

Cooling system hoses and pipes are used to route coolant through the entire system and maintain the proper engine operating temperature. They are responsible for connecting subassemblies, circuit tightness, and the proper transfer of fluid to the radiator, heater core, and water pump. Their failure can cause leaks, air in the system, and disruption of fluid circulation.

What is the construction and function of a cooling system connector?

A cooling system connector is a connection point to which a hose or pipe transporting coolant is attached. It can be part of the thermostat housing, radiator, cylinder head, or another subassembly and usually works with a gasket, clamp, or quick-connector. Its task is to maintain a tight and stable connection in places where pressure and temperature changes occur.

How to choose cooling system hoses and pipes for a specific car version?

It is best to compare the OEM part number, hose path, end diameters, and type of connectors. It is also worth checking the engine version, fuel type, production year, mounting location, and any interchangeable numbers. For used parts, the completeness of brackets, vents, and branches also matters.

What symptoms indicate wear of cooling system hoses and pipes?

The most common signs are coolant leaks, traces of moisture at connections, swollen material, cracks, or a hose structure that is too soft. In practice, fluctuations in engine operating temperature, gurgling, and sediment traces near clamps may also appear. Such symptoms should be checked along with fluid levels and connection tightness.

How to care for cooling system hoses and pipes after installation?

After installation, it is worth checking the hose routing, tightening of clamps, and lack of contact with hot or moving engine compartment elements. It is also important to check the coolant level and system venting after the first start. Regular inspections help to quickly detect leaks, abrasions, and material deformation.

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.

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Lexsus LS400 Cooling Coolant Thermostat Water 9091603084

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€23.95

€22.75

Part no. 03L121157AA

Audi A4 B8 A5 8T Water Hose Cooling Radiator Pipe Line 2.0 TDI 03L121157AA

€23.95

Part no. 982265381C

Porsche 718 Boxster 982 Water Coolant Hose Pipe Line 2.0T 982265381C

€51.95

Part no. 5K0122051N

Volkswagen Beetle Scirocco III 2.0 TDI Water Radiator Pipe Hose Line 5K0122051N

€28.95

Part no. C1B1-8C012-AD

Ford Fiesta Mk7 Coolant Overflow Pipe 1.0 EcoBoost Petrol C1B1-8C012-AD

€28.95

Part no. 079121071BB

Audi RS4 B7 Radiator Coolant Hose Pipe Line A079121071BB

€32.95

Part no. JT76-8C351-CG

Ford Transit Connect Engine Thermostat Hose Tube Line Pipe SFCA JT76-8C351-CG

€23.95

Part no. KK21-8B273-BD

Ford Transit Custom Coolant Hose Water Pipe Tube Line 2.0 EcoBlue KK21-8B273-BD

€51.95

Part no. 1469442-1

Ford Transit Mk7 Water Hose Engine Cooling Radiator Coolant Pipe 6C11-8B273-BG

€23.95

Audi A4 B8 A5 8T Water Hose Cooling Coolant Radiator Pipe Line 06H121057G

-5%

Part no. 06H121057G

Audi A4 B8 A5 8T Water Hose Cooling Coolant Radiator Pipe Line 06H121057G

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€23.95

€22.75

Mercedes X253 Water Hose Radiator Coolant Cooling Pipe Line A2535015101

-15%

Part no. A2535015101

Mercedes X253 Water Hose Radiator Coolant Cooling Pipe Line A2535015101

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€28.95

€24.61

BMW E60 E90 E91 F10 Radiator Coolant Pipe Hose Line 7557364

-5%

Part no. 7557364

BMW E60 E90 E91 F10 Radiator Coolant Pipe Hose Line 7557364

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€23.95

€22.75

Seat Arona KJ7 Skoda Scala NW1 Water Coolant Hose Pipe 1.0 TFSI 2Q0121049CL

-15%

Part no. 2Q0121049CL

Seat Arona KJ7 Skoda Scala NW1 Water Coolant Hose Pipe 1.0 TFSI 2Q0121049CL

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€56.91

Part no. LR125620

Range Rover Sport L494 Turbocharger Coolant Pipe Hose 3.0D MHEV K6D3-8K598-DD

€113.95

Part no. 9P1121624

Porsche 718 Boxster 982 Water Radiator Hose Pipe Right O/S 2.0T 9P1121624

€23.95

Part no. C1B1-18K579-EA

Ford Fiesta Mk7 Water Coolant Hose Pipe Line C1B1-18K579-EA

€23.95

Part no. CC11-18K579-BB

Ford Transit Mk7 Water Coolant Pipe Hose Line 2.2 Diesel CC1118K579BC

€23.95

Part no. 123250Y010

Toyota Yaris P9 Engine Coolant Hose Tube Line Pipe 1.33 Petrol 123250Y010

€23.95

Part no. 5Q0121070AB

Audi VW Seat Petrol Coolant Hose Water Pump Pipe Cooling Line 5Q0121070AB

€37.95

BMW F45 Active Tourer Mini F60 B38X Water Coolant Return Hose Pipe 9367389

-5%

Part no. 9367389

BMW F45 Active Tourer Mini F60 B38X Water Coolant Return Hose Pipe 9367389

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€22.75

Mercedes W212 OM642 Water Hose Cooling Coolant Pipe Line A2125010925

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Part no. A2125010925

Mercedes W212 OM642 Water Hose Cooling Coolant Pipe Line A2125010925

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€22.75

Water Hose Mercedes W211 W219 OM642 Engine Coolant Cooling Pipe Line A2118327794

-5%

Part no. A2118327794

Water Hose Mercedes W211 W219 OM642 Engine Coolant Cooling Pipe Line A2118327794

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€23.95

€22.75

BMW G20 Water Hose Radiator Coolant Cooling Tube Pipe Line 8650984

-15%

Part no. 8650984

BMW G20 Water Hose Radiator Coolant Cooling Tube Pipe Line 8650984

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€32.95

€28.01

Mercedes W205 M264 Petrol Radiator Coolant Pipe Line Tube Hose A2642007500

-15%

Part no. A2642007500

Mercedes W205 M264 Petrol Radiator Coolant Pipe Line Tube Hose A2642007500

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Part no. LR125478

Range Rover Sport L494 Turbocharge Coolant Pipe Hose Line 3.0D K6D3-310100-CD

€75.95

BMW F07 F10 F11 Engine Water Coolant Pipe Hose Line N55 Petrol 7607841

-5%

Part no. 7607841

BMW F07 F10 F11 Engine Water Coolant Pipe Hose Line N55 Petrol 7607841

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Audi A4 B9 2.0 TDI Diesel Engine Coolant Hose Line Pipe Tube 04L122157CC

-15%

Part no. 04L122157CC

Audi A4 B9 2.0 TDI Diesel Engine Coolant Hose Line Pipe Tube 04L122157CC

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€28.95

€24.61

Ford Transit Custom Mk8 Water Coolant Pipe Hose Line 2.0 EcoBlue GK2Q-8B451-AA

-5%

Part no. 1935535

Ford Transit Custom Mk8 Water Coolant Pipe Hose Line 2.0 EcoBlue GK2Q-8B451-AA

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€23.95

€22.75

Audi VW Seat Skoda Water Hose Cooling Radiator Coolant Pipe Line 5Q0121058R

-5%

Part no. 5Q0121058R

Audi VW Seat Skoda Water Hose Cooling Radiator Coolant Pipe Line 5Q0121058R

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Mercedes W205 Water Hose Engine Coolant Cooling Pipe Line A2055011700

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Part no. A2055011700

Mercedes W205 Water Hose Engine Coolant Cooling Pipe Line A2055011700

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Part no. 95810655140

Porsche Cayenne 92A Water Coolant Pipe Hose Line 4.2 V8 95810655140

€23.95

Part no. 1K0122109-1

VW Scirocco Mk3 Audi A3 8P Water Coolant Hose Pipe Line 2.0 TFSI 1K0122109CM

€23.95

Part no. 6984739

BMW Z4 E85 E86 Cooling Hose Pipe Line Coolant 6984739

€23.95

Water Hose BMW F45 X1 F48 Mini F55 F56 F60 Radiator Engine Coolant Pipe 7617363

-15%

Part no. 7617363-1

Water Hose BMW F45 X1 F48 Mini F55 F56 F60 Radiator Engine Coolant Pipe 7617363

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€24.61

Part no. GK21-8C351-BC

Ford Transit Custom Mk1 Water Coolant Cooling Pipe Hose Line GK21-8C351-BC

€23.95

Part no. 982121101A

Porsche 718 Boxster 982 Coolant Water Feed Pipe Hose Line 2.0T 982121101A

€23.95

Audi TT Mk2 8J Water Coolant Pipe Hose Line 2.0 TDI Diesel Engine 8J0121051Q

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Part no. 8J0121051Q-1

Audi TT Mk2 8J Water Coolant Pipe Hose Line 2.0 TDI Diesel Engine 8J0121051Q

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Audi Q7 4L Auxiliary Water Heater Feed Coolant Pipe Hose Diesel 7L0815987E

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Part no. 7L0815987E

Audi Q7 4L Auxiliary Water Heater Feed Coolant Pipe Hose Diesel 7L0815987E

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€22.75

Part no. 06E121045E

Audi A4 B7 Water Hose Radiator Coolant Pipe Line Tube 3.2 TFSI 06E121045E

€23.95

Part no. 7649301

Engine Water Hose BMW F20 LCI M135iX F30 335iX Coolant Cooling Pipe Line 7649301

€37.95

Part no. 3B0122291B

Audi A1 GB A3 S3 VW Golf 5G Coolant Water Pipe Connector Coupling 3B0122291B

€23.95

BMW F45 Active Tourer Mini F60 B38X Water Coolant Return Hose Pipe 9367388

-5%

Part no. 9367388

BMW F45 Active Tourer Mini F60 B38X Water Coolant Return Hose Pipe 9367388

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€22.75

VW Golf Mk5 V Mk6 VI Petrol Engine Water Coolant Pipe Hose Line 1K0122157AN

-5%

Part no. 1K0122157AN

VW Golf Mk5 V Mk6 VI Petrol Engine Water Coolant Pipe Hose Line 1K0122157AN

Promo price

€23.95

€22.75

Part no. 8514453-1

BMW F20 LCI B37 Expansion Tank Cylinder Head Cooling Hose Pipe 8514453

€23.95

Part no. 982121030

Porsche 718 Boxster 982 Coolant Water Hose Pipe Line 2.0T 982121030

€28.95

Water Hose Mercedes W213 C238 C253 C257 Diesel OM654 Coolant Line A2135015501

-15%

Part no. A2135015501

Water Hose Mercedes W213 C238 C253 C257 Diesel OM654 Coolant Line A2135015501

Promo price

€37.95

€32.26

Part no. 6G91-8K012-ND

Land Rover Range Rover Sport L320 Coolant Overflow Pipe Hose Line 6G91-8K012-ND

€23.95

Coolant Hose BMW X3 F25 X4 F26 Diesel Heater Water Return Pipe Line 9249616

-15%

Part no. 9249616

Coolant Hose BMW X3 F25 X4 F26 Diesel Heater Water Return Pipe Line 9249616

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€28.95

€24.61

Land Rover Discovery Sport L550 Water Coolant Pipe Hose Line 2.0 G4D3-8555-BC

-15%

Part no. G4D3-8555-BC

Land Rover Discovery Sport L550 Water Coolant Pipe Hose Line 2.0 G4D3-8555-BC

Promo price

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€24.61

Part no. A2742001682

Coolant Hose Mercedes W204 Petrol M274 Engine Cooling Water Line A2742001682

€32.95

Coolant Hose Mercedes GLE W166 C292 OM642 Water Cooling Line A1668303800

-5%

Part no. A1668303800

Coolant Hose Mercedes GLE W166 C292 OM642 Water Cooling Line A1668303800

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Part no. 9896554

BMW F70 F74 U06 U10 U11 Heat Management Module Line Tube Hose Pipe 9896554

€42.95

Audi A5 8T Engine Coolant Cooling Hose Pipe Line 3.0 TDI Diesel 059121507AB

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Part no. 059121507AB

Audi A5 8T Engine Coolant Cooling Hose Pipe Line 3.0 TDI Diesel 059121507AB

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Part no. 99610612654

Porsche Boxster 986 Engine Coolant Water Breather Pipe Right O/S 99610612654

€32.95

Part no. A2055010725

Mercedes W205 Radiator Coolant Cooling Hose Pipe Line A2055010725

€37.95

Part no. GJ32-8C480-AA

Land Rover Discovery Sport L550 Water Coolant Pipe Hose Line 2.0 D GJ32-8C480-AA

€23.95

Part no. JT76-8B550-CE

Ford Transit Connect Engine Hose Tube Line Pipe 1.0 EcoBoost JT76-8B550-CE

€23.95

Audi A5 8T 2.0 TFSI CDNB Vacuum Solenoid Coolant Line Tube Hose Pipe 06H133514K

-15%

Part no. 06H133514K

Audi A5 8T 2.0 TFSI CDNB Vacuum Solenoid Coolant Line Tube Hose Pipe 06H133514K

Promo price

€32.95

€28.01

Ford Transit Custom Heater Coolant Pipe Hose Line 2.0 EcoBlue GK21-18K579-BH

-40%

Part no. 2534057

Ford Transit Custom Heater Coolant Pipe Hose Line 2.0 EcoBlue GK21-18K579-BH

Promo price

€66.95

€40.17

Audi VW Seat 2.0 TFSI Petrol Water Pipe Engine Coolant Hose Line 06K121085M

-5%

Part no. 06K121085M

Audi VW Seat 2.0 TFSI Petrol Water Pipe Engine Coolant Hose Line 06K121085M

Promo price

€23.95

€22.75

Part no. 6G91-8260-PC

Ford Galaxy Mk2 Water Coolant Pipe Hose Line Tube 2.0 TDCi Diesel 6G91-8260-PC

€23.95

Part no. 04L121101

Volkswagen Passat B8 Coolant Water Hose Pipe 2.0 TDI 04L121101

€23.95

BMW X5 F15 Water Coolant Hose Pump Cooling Pipe Line Hose 3015638

-15%

Part no. 3015638

BMW X5 F15 Water Coolant Hose Pump Cooling Pipe Line Hose 3015638

Promo price

€37.95

€32.26

Part no. 8R0121101G

Audi A4 B8 A5 Water Coolant Hose Pipe Line 8R0121101G

€23.95

Ford Transit Mk7 Mk8 Fuel Injection Line Pressure Pipe Injector Set 2.2 TDCi

-40%

Part no. 6C1Q-9J323-AB

Ford Transit Mk7 Mk8 Fuel Injection Line Pressure Pipe Injector Set 2.2 TDCi

Promo price

€47.95

€28.77

Part no. A1635000075

Mercedes W163 Engine Water Circulation Hose Tube Line Pipe ML 350 A1635000075

€23.95

Part no. 7649278

BMW F07 GT F10 LCI F11 Water Coolant Pipe Hose Line Petrol Engine 7649278

€28.95

Part no. A1772030064

Mercedes W205 C63 AMG Water Coolant Line Shut-Off Valve M177 A1772030064

€32.95

Part no. PIH500091

Land Rover Discovery 3 L319 Fuel Cooler Pipe Hose Line 2.7 PIH500091

€47.95

Part no. 7605151

BMW F01 LCI F12 F13 Coolant Hose Petrol N55 Cooling Unit Pipe Line 7605151

€47.95

Part no. 8J0121156A

Audi TTS 8J Radiator Coolant Hose Pipe Tube Line 2.0 TFSI Petrol 8J0121156A

€32.95

Part no. LR051517

Range Rover Sport L494 Air Conditioning Pipe Hose Tube Line 3.0 Diesel LR051517

€47.95

Part no. 872090D150

Toyota Yaris P9 Water Heater Outlet Hose Tube Line Pipe 1.33 Petrol 872090D150

€23.95

Ford Ranger Wildtrack Mk6 Water Hose Engine Coolant Pipe 3.2 TDCI AB39-6B850-BE

-15%

Part no. 2030412

Ford Ranger Wildtrack Mk6 Water Hose Engine Coolant Pipe 3.2 TDCI AB39-6B850-BE

Promo price

€37.95

€32.26

Ford Transit Custom Mk8 Water Coolant Pipe Hose Line 2.0 EcoBlue JK21-8D036-BA

-5%

Part no. 2389626

Ford Transit Custom Mk8 Water Coolant Pipe Hose Line 2.0 EcoBlue JK21-8D036-BA

Promo price

€23.95

€22.75

Audi A4 B8 A5 8T Heater Matrix Connecting Pipe Coolant Hose Tube 8K1819350AB

-5%

Part no. 8K1819350AB

Audi A4 B8 A5 8T Heater Matrix Connecting Pipe Coolant Hose Tube 8K1819350AB

Promo price

€23.95

€22.75

VW Volkswagen Golf Mk6 VI Coolant Water Pipe Hose Line 06F122101A

-5%

Part no. 06F122101A

VW Volkswagen Golf Mk6 VI Coolant Water Pipe Hose Line 06F122101A

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€23.95

€22.75

Part no. A2722030782-1

Mercedes S212 C207 Coolant Hose EGR Line Water Circulation A2722030782

€32.95

BMW 1 3 Series F20 F30 Hose Radiator And Water Valve 9208179

-5%

Part no. 9208179

BMW 1 3 Series F20 F30 Hose Radiator And Water Valve 9208179

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€23.95

€22.75

Part no. 06D121492J

Audi A4 B7 A6 C6 Engine Coolant Pipe Hose Tube Line 2.0 BWE Petrol 06D121492J

€28.95

Part no. A2055018184

Mercedes W205 C43 Oil Cooler Water Pipe Coolant Hose Line M276 V6 A2055018184

€23.95

Part no. 7H0121051G

VW Transporter T5 1.9 TDI Coolant Radiator Bottom Hose Pipe Line 7H0121051G

€23.95

Audi A6 C8 Coolant Hose Line Pipe Tube Engine Cooling 4K2819347F

-15%

Part no. 4K2819347F

Audi A6 C8 Coolant Hose Line Pipe Tube Engine Cooling 4K2819347F

Promo price

€32.95

€28.01

Part no. 1384597

Ford Transit Mk7 Engine Cooling Hose Tube Pipe Line 1384597 6C11-8C351-AD

€23.95

Part no. 03L121157AK

Audi A4 S4 8K A5 S5 8F Engine Water Coolant Hose Tube Pipe Line 03L121157AK

€23.95

Coolant Pipe Mercedes W212 W218 Expansion Overflow Tank Cooling Hose A2125015782

-5%

Part no. A2125015782

Coolant Pipe Mercedes W212 W218 Expansion Overflow Tank Cooling Hose A2125015782

Promo price

€23.95

€22.75

Mercedes W204 Water Hose Coolant Cooling Pipe Line A6462030982

-15%

Part no. A6462030982

Mercedes W204 Water Hose Coolant Cooling Pipe Line A6462030982

Promo price

€28.95

€24.61

Part no. 8489616

BMW U06 U10 F70 Mini U25 Turbocharger Coolant Feed Line Hose Pipe Tube 8489616

€32.95

Part no. 1384148

Ford Focus Titanium Hose Water Pipe Line Tube 2.0 Petrol 1384148 3M5H-8286-DH

€23.95

Part no. 4F0121081G

Audi A6 C6 Water Hose Coolant Cooling Tube Pipe Line 2.7 Diesel 4F0121081G

€23.95

Audi A5 8T Radiator Water Cooling Coolant Pipe Hose Line Diesel 8K0819377C

-5%

Part no. 8K0819377C

Audi A5 8T Radiator Water Cooling Coolant Pipe Hose Line Diesel 8K0819377C

Promo price

€23.95

€22.75

Part no. 7605432

BMW F01 LCI F12 F13 Coolant Hose Petrol N55 Thermostat Inlet Pipe 7605432

€28.95

BMW Z4 er E85 E86 Cooling Radiator Expansion Tank Hose Pipe 6939219

-5%

Part no. 6939219

BMW Z4 er E85 E86 Cooling Radiator Expansion Tank Hose Pipe 6939219

Promo price

€23.95

€22.75

Part no. 1K0122447GC

Skoda Octavia RS 1Z 1.8 BZB Petrol Engine Coolant Hose Line Tube 1K0122447GC

€23.95

Water Pipe Audi A4 B8 A5 8T 2.0 TFSI Coolant Hose Line 8K0121049M

-5%

Part no. 8K0121049M

Water Pipe Audi A4 B8 A5 8T 2.0 TFSI Coolant Hose Line 8K0121049M

Promo price

€23.95

€22.75

Part no. A6082000300

Mercedes W177 OM608 Diesel Engine Coolant Cooling Pipe Line Hose A6082000300

€28.95

Part no. 1K0121049CA-1

Audi A3 8P Engine Cooling Radiator Water Coolant Pipe 1.4 TFSI CAXC 1K0121049CA

€23.95

Part no. PZ31-8B274-PAD

Ford Transit Custom Water Coolant Hose Pipe 2.0 Diesel PZ31-8B274-PAD

€42.95

Land Rover Discovery Sport L550 Engine Cooling Water Hose Pipe Line GJ328260AA

-5%

Part no. LR072035

Land Rover Discovery Sport L550 Engine Cooling Water Hose Pipe Line GJ328260AA

Promo price

€23.95

€22.75

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