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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Jaguar XF X250 Coolant Water Hose Pipe Radiator 3.0 V6 Diesel 9X23-7752-BC

€23.95

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Audi TT 8N TTS Radiator Coolant Hose Tube Line Pipe 8N0121096H

€56.95

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BMW F70 F74 Gran Coupé Coolant Water Return Hose Pipe Line B38N 5A9DB28

€32.95

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

€23.95

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Audi Q3 8U Water Hose Cooling Radiator Coolant Pipe Line 1K0122101CK

€23.95

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Audi A6 S6 C7 Engine Water Coolant Pipe Hose Line 4.0 Petrol Engine 4G0121447BB

€23.95

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Audi TT 8J Water Cooling Coolant Pipe Line Connector Bracket Holder 06J133519A

€23.95

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Coolant Hose Mercedes W213 C238 Water Pump To Radiator A2385010601

€28.95

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Radiator Coolant Hose BMW F20 LCI F30 F32 Petrol B48 Water Pipe Part 8677245

€56.95

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Ford Transit Mk8 Water Hose Engine Cooling Radiator Coolant Pipe GK21-8D033-BH

€23.95

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BMW MINI Cooper One R55 R56 R57 2 Upper Radiator Coolant Pipe Hose 2754221

€23.95

Part no. K8D2-18C266-BC

Land Rover Discovery Sport L550 Coolant Water Hose Pipe 1.5 PHEV K8D2-18C266-BC

€28.95

Part no. XR849083

Jaguar XF X250 X200 XJ X350 Tube Hose Line Pipe Radiator 2.7 Diesel XR849083

€23.95

Part no. LR087237

Land Rover Discovery Sport L550 EGR Water Cooling Pipe Hose AJ200 G4D3-9Y439-BF

€28.95

Part no. 5Q0121619D-1

Audi A3 8V Skoda Octavia Mk3 Water Hoses Coolant Pipes Lines 5Q0122051DA

€56.95

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Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line A2055011800

€23.95

Part no. 2140689

Ford Transit Connect Mk2 1.5 TDCi Diesel Engine Coolant Hose Pipe 8V61-8260-KE

€23.95

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Mini F65 F66 F67 BMW F70 F74 Turbocharger Oil Supply Feed Line Pipe 8489607

€42.95

Part no. GK2Q-8K556-AA

Ford Tourneo Custom Water Hose Engine Cooling Pipe 2.0 EcoBlue GK2Q-8K556-AA

€23.95

Part no. L8D2-65008-AB

Land Rover Discovery Sport L550 Coolant Valve Bracket 1.5 PHEV L8D2-65008-AB

€23.95

Part no. 06H121085C-1

Audi A4 B8 Water Hose Cooling Radiator Coolant Pipe Line 1.8 TFSI 06H121085C

€23.95

Part no. 5WA122073H-1

Coolant Hose Skoda Superb Se Engine Coolant Water Tube Line Pipe 5WA122073H

€23.95

Part no. 6R0121051Q

Seat Ibiza 6j Volkswagen Polo 6R Coolant Pipe Hose Tube Line 1.2 TDI 6R0121051Q

€23.95

Part no. 4G0145920C

Audi A6 C7 3.0 TFSI Water Coolant Pipe Hose Line 4G0145920C

€23.95

Part no. BK31-18K579-AE

Ford Transit 8 2.2 TDCi Diesel Coolant Pipe Water Hose BK3118K579AE

€28.95

Part no. PZ31-8C351-PAD

Ford Transit Custom Mk2 Coolant Hose 2.0 EcoBlue Diesel Engine PZ31-8C351-PAD

€37.95

Part no. 7596831

BMW F30 F20 F21 F32 Coolant Hose Pipe Radiator Petrol N20 Engine 7596831

€47.95

Part no. 7596839

BMW F20 F21 F30 F31 F32 Petrol N20 Radiator Cooler Coolant Pipe Hose 7596839

€37.95

Part no. 8R0819374D

Audi Q5 8R Coolant Hose Pipe Water Line Tube 2.0 TDI 8R0819374D

€23.95

Part no. 8654834

BMW G20 G21 Coolant Radiator Hose Pipe 2.0 Petrol Hybrid 8654834

€23.95

Part no. M8A2-8286-BD-2

Land Rover Range Rover Velar L560 Water Coolant Hose Pipe 2.0 D M8A2-8286-BD

€37.95

Part no. L8D2-18K580-BD

Land Rover Discovery Sport L550 Coolant Water Hose Pipe 1.5 PHEV L8D2-18K580-BD

€23.95

Part no. PNH000163

Land Rover L322 Intercooler Hose Pipe Line PNH000163

€42.95

Part no. 4G0145921C

Audi A6 C7 Water Hose Cooling Coolant Pipe Line 3.0 TFSI 4G0145921C

€23.95

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Audi TT 8N TTS Coolant Hose Tube Line Pipe 8N0121073A

€56.95

Part no. 8602578

BMW F21 F22 F23 F30 F31 F32 Coolant Feed Pipe Hose Line N55 Petrol 8602578

€32.95

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BMW 5 7 Series E60 E61 E65 Sucking Jet Pump Vacuum Control Engine 7521860

€28.95

Part no. 7N0121064L

VW Volkswagen Sharan 7N Breather Pipe Hose Line 2.0 TDI 7N0121064L

€32.95

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Audi RSQ3 F3 2.5 TFSI Quattro Water Coolant Pipe Hose Line 057121057C

€23.95

Part no. 7575432

Coolant Hose BMW F10 F13 F07Gt Petrol N63 Water Intercooler Line 7575432

€23.95

Part no. 7524841

BMW E65 E66 E67 Radiator Coolant Cooling Return Water Hose Pipe 7524841

€28.95

Part no. 2754224-2

BMW Mini Cooper R55 R56 2 Cooling System Coolant Radiator Water Hose 2754224

€23.95

Part no. 7N0122051S

Volkswagen Sharan 7N Water Pipe Hose Coolant Cooling Line 2.0 TDI 7N0122051S

€32.95

Part no. 8580496

Coolant Pipe Mini F60 BMW F40 Diesel B37 B47 Crankcase Water Line 8580496

€23.95

Part no. 9X23-18C553-AC

Jaguar XF X250 Engine Water Coolant Heater Pipe 3.0 V6 Diesel 9X23-18C553-AC

€23.95

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Audi A6 C8 Engine Coolant Hose Pipe Water Line Cooling 4K0121071J

€32.95

Part no. 4G0121481P

Audi S6 C7 Water Coolant Cooling Hose Pipe Rear Left N/S 4.0 Petrol 4G0121481P

€23.95

Part no. 5Q0122101BP

Audi A3 8V 2.0 TDI Water Hose Radiator Coolant Pipe Line Diesel 5Q0122101BP

€23.95

Part no. 079121137M

Audi S6 C7 S7 4G Coolant Pipe Connection Flange Adapter Line 079121137M

€23.95

Part no. 5N0122157AG

Audi Q3 8U 2.0 TFSI Water Pipe Hose Coolant Cooling Line 5N0122157AG

€37.95

Part no. 04L121131AD

Audi A5 8T Water Coolant Flange Pipe Hose Line 04L121131AD

€23.95

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Audi A4 S4 B8 A5 S5 8T Engine Cooling Radiator Hose Tube Pipe Line 059121070A

€23.95

Part no. 06F121132G

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

€23.95

Part no. 6C0121109B

Audi A1 8X Volkswagen Polo 6C Water Coolant Pipe Hose 1.0 TFSI 6C0121109B

€23.95

Part no. 165720D170

Toyota Auris E15 Radiator Coolant Hose Pipe Line 1.6 Petrol Engine 165720D170

€23.95

Part no. 059121447N

Audi A6 C8 Engine Coolant Water Pipe Return Line Tube Hose 059121447N

€23.95

Part no. 5WA122073H

Coolant Hose Volkswagen Golf CD1 Polo 1.0 TSI Water Tube Line Pipe 5WA122073H

€23.95

Part no. 5N0122051CD

Audi Q3 8U Coolant Hose Pipe Line Tube Quick Release Coupling 5N0122051CD

€32.95

Part no. 06J133781BD

Audi TT 8J Water Hose Cooling Radiator Coolant Pipe Line 06J133781BD

€23.95

Part no. 5Q0122051AF

Audi Seat Skoda VW Water Coolant Hose Pipe Line Water Coolant 5Q0122051AF

€37.95

Part no. 06Q121065C

Audi S3 8Y Volkswagen Golf Mk8 Water Coolant Pipe 2.0 TFSI 06Q121065C

€23.95

Part no. 7564478

Hose Radiator BMW E81 X1 E84 E87 E90 E91 Bottom Thermostat Pipe 7564478

€23.95

Part no. 8W0121400B-1

Audi A4 B9 A5 F5 Engine Oil Coolant Hose Pipe Line Tube 8W0121400B

€32.95

Part no. A2058309005-1

Heating Line Mercedes W205 Return Water Hose To Circulation Pump A2058309005

€32.95

Part no. A2465011258

Water Hose Mercedes W176 W246 OM651 Cooling Coolant Pipe Line A2465011258

€23.95

Part no. A9075010900

Mercedes W907 OM654 Water Pipe Engine Coolant Cooling Hose Line A9075010900

€28.95

Part no. 7537315

BMW E91 LCI Radiator Coolant Pipe Hose Tube Line 2.0 Petrol N43 7537315

€28.95

Part no. LR013668

Land Rover Discovery 4 L319 Heater Water Coolant Pipe Hose 3.0 D AH22-18C553-AD

€23.95

Part no. 4G0122055D

Audi A6 C7 Engine Coolant Pipe Hose Tube Line 2.0 Diesel CNHA 4G0122055D

€23.95

Part no. BK3Q-9J280-AB

Ford Transit MK4 Diesel 2.2 TDCi Fuel Injection Line Pressure Pipe BK3Q-9J280-AB

€23.95

Part no. 4G0121056J

Audi A6 S6 C7 Water Coolant Cooling Hose Pipe Rear Left N/S 4.0 Petrol 4G0121056

€23.95

Part no. 1504285

Radiator Coolant Hose Mini R50 R52 R56 R57 Water Outlet Pipe Line 1504285

€23.95

Part no. 8517969

Water Hose BMW X5 F15 X6 F16 N57N N57Z Radiator Coolant Pipe Line 8517969

€32.95

Part no. 1256525

Ford Focus Mk2 Radiator Cooler Coolant Water Pipe 2.0 TDCi Diesel 3M5Q-9Y438-AA

€28.95

Part no. 1K0122109CF

Water Coolant Pipe Volkswagen Audi Skoda Seat 1.6 TDI Cooling LIne 1K0122109CF

€23.95

Part no. M8D2-8B159-AB

Range Rover Evoque L551 Coolant Hose Pipe 2.0 Hybrid M8D2-8B159-AB

€28.95

Part no. 1K0122063G

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

€23.95

Part no. A2125018282

Mercedes W204 W212 Water Pipe OM651 Engine Cooling Coolant Hose Line A2125018282

€23.95

Part no. 7P5122447F-2

Porsche Cayenne 92A Water Breather Pipe Hose Cooling Tube 7P5122447F

€32.95

Part no. 1371293

Ford Transit Mk7 Coolant Cooling Hose Pipe Line 2.2 TDCi 6C11-3B274-BC

€23.95

Part no. 06K121085A

Volkswagen Golf R Mk7 Coolant Water Pipe Hose 2.0 TFSI 06K121085A

€23.95

Part no. A1725010358

Mercedes R172 Engine Radiator Coolant Hose Pipe A1725010358

€23.95

Part no. M8A2-8286-BD-1

Land Rover Range Rover Velar L560 Water Coolant Hose Pipe 2.0 D M8A2-8286-BD

€56.95

Part no. BH42-15141-AA

Land Rover Range Rover L322 Auxiliary Water Valve Pipe 4.4 TDV8 BH42-15141-AA

€28.95

Part no. 079121127E

Audi RS6 C7 RS7 4G Coolant Flange Adapter Cooling Pump Pipe Hose 4.0L 079121127E

€23.95

Part no. 7596835

Coolant Hose BMW F20 F21 F30 N13 Engine Cooling Water Pipe Line 7596835

€23.95

Part no. 3AA122101F

Volkswagen Passat B7 Radiator Upper Coolant Hose Pipe 2.0 TDI 3AA122101F

€23.95

Part no. PFV000100

Land Rover Discovery L318 Coolant Pipe Hose Line 2.5 Diesel Engine 3H2Z-8569-AA

€23.95

Part no. 059121449N

Audi A4 B9 A5 F5 A6 C8 3.0 TDI Coolant Water Pipe Hose Tube Line 059121449N

€23.95

Part no. 1J0121444EF

Audi TT 8N A3 8L Seat Leon 1M Golf Mk4 Coolant Hose Pipe Line Petrol 1J0121444EF

€32.95

Part no. A2702030682

Water Hose Mercedes W176 W246 M270 Coolant Cooling Pipe Line A2702030682

€23.95

Part no. LR000272

Range Rover Sport L320 Engine Breather Pipe Hose Tube 2.7 V6 LION 4R8Q-6C717-AC

€23.95

Part no. 8602623

BMW G30 G11 G12 Engine Water Coolant Hose Pipe Line 2.0 Petrol Hybrid 8602623

€23.95

Part no. 5Q0121058AE

VW Polo GTI AW Audi A3 8V Water Hose Cooling Coolant Pipe 2.0 TFSI 5Q0121058AE

€23.95

Part no. 9A7145405

Porsche Macan 95B Engine Coolant Water Pipe Hose Cooling Tube 06M145405H

€47.95

Part no. 1K0121049DJ-1

Volkswagen Touran 1T Water Coolant Hose Pipe Line 1.4 TSI 1K0121049DJ

€23.95

Part no. A2742001382

Cooling Line Mercedes W204 W212 C253 Water Pipes Hoses Coolant A2742001382

€23.95

Part no. BH42-8C289-AA

Land Rover Range Rover L322 Heater Hose Vent Pipe 4.4 V8 Diesel BH42-8C289-AA

€28.95

Part no. 6C0122051P

Audi A1 8X Volkswagen Polo 6C Water Coolant Hose Pipe 1.0 TFSI 6C0122051P

€80.95

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