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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BMW X3 Series E83 LCI E83N Engine Water Valve Pipe Coolant Hose Supply 3448075

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5N0122101AC

Volkswagen Tiguan 5N Water Pipes Hoses Coolant Cooling Line 5N0122101AC

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. BK3Q8K520BB

Ford Transit MK7 2.2 TDCI Water Hose Cooling Coolant Pipe Line BK3Q-8K520-BB

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A6422000258

Water Pipe Mercedes W204 C207 W212 OM642 Cooling Coolant Hose Line A6422000258

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8J0121447H

Audi TT 8J 2.0 TDI CFGB Engine Coolant Hose Pipe 8J0121447H

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A4155010591

Mercedes W415 Engine Water Coolant Pipe Hose A4155010591

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 3427951

BMW X3 E83 LCI Cooling System Radiator Water Hose Pipe 3.0sd M57N2 3427951

£42.95

Free delivery: Oct 23

If paid before 14:00

Part no. LR024243

Range Rover Evoque L538 Water Pipe Coolant Hose Line 2.2 TDCI BJ32-8274-AA

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7P0121065AC

Volkswagen Touareg 7P Preheater Pipe Hose Line 3.0 TDI 7P0121065AC

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4G0121448AF

Audi Q5 8R 3.0 TDI Water Hose Cooling Coolant Pipe Line Hose 4G0121448AF

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2138309000

Mercedes W213 Engine Coolant Water Pipe Hose Line A2138309000

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2702033003

Coolant Line Mercedes W176 Petrol M270 Water Pump Pipe Hose A2702033003

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8053469

BMW X3 F97 X4 F98 Coolant Water Pump Hose Line Flow Electric Drive 8053469

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7805599

BMW X5 E70 X6 E71 M57N2 Coolant Pipe Line Water Hose 7805599

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2208320994

Mercedes-Benz CL S C215 W220 Window Washer Heating Flow Pipe Hose A2208320994

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8053471

Water Coolant Pipe BMW X3M F97 X4M F98 S58 Cooling Hose Line 8053471

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8514465

BMW X5 F15 X6 F16 Coolant Pipe SCR Module Engine Block Cooling Pipe Line 8514465

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8K0121101M

Water Pipe Audi A4 B8 A5 8T Q5 8R 2.0 TFSI Coolant Hose Line 8K0121101M

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8512418

Coolant Hose BMW F10 Diesel Engine N57 Exansion Tank EGR Cooler Line 8512418

£32.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2742001682

Coolant Hose Mercedes W204 Petrol M274 Engine Cooling Water Line A2742001682

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7838205

BMW E90 E92 E93 M3 Coolant Hose Connector Engine Cooling 7838207

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7648352

Mini F54 F55 F56 F60 B36 B38 Engine Turbocharger Coolant Feed Line Pipe 7648352

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. RHD-A2048302596

Mercedes W204 W207 Water Coolant Hose Pipe Cooling Line A2048302596

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 06F145317H

VW Volkswagen Golf 5 2.0 TFSI BWA Coolant Pipe Hose Bracket Mount 06F145317H

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5N0121086D

Audi Q3 8U Coolant Cooling Hose Pipe Line 2.0 TDI Diesel Engine 5N0121086D

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. M8A2-8D262-AB

Range Rover Velar L560 Coolant Hose Pipe Line 2.0 Diesel Engine M8A2-8D262-AB

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5N0121064H

Audi Q3 8U Volkswagen Tiguan 5N Coolant Hose Metal Pipe Radiator 5N0121064H

£32.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2055010800

Mercedes W205 Intercooler Water Pipe Radiator Cooling Coolant Hose A2055010800

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5N0121070S-2

Audi Q3 8U Engine Cooling Coolant Line Hose Pipe 2.0 TDI Diesel 5N0121070S

£66.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8616136

BMW F30 Water Hose Radiator Coolant Cooling Pipe Line 8616136

£47.95

Free delivery: Oct 23

If paid before 14:00

Part no. GK21-8C350-BD

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

£47.95

Free delivery: Oct 23

If paid before 14:00

Part no. 9797615

BMW X3 G01 X4 G02 Water Hose Coolant Radiator Pipe Line Petrol 9797615

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 04L121131J

Audi A3 8V Skoda Octavia Mk3 Water Coolant Flange Pipe Hose Line 04L121131J

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7P0121065M-1

Volkswagen Touareg 7P Oil Cooler Cooling Tube Pipe Hose Line 3.0 TDI 7P0121065M

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5Q0122157AB

Coolant Pipe Audi S1 8X S3 8V VW Golf R Mk7 2.0 TSI TFSI Water Hose 5Q0122157AB

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. M8D2-8260-AB

Range Rover Evoque L551 Radiator Coolant Pipe Hose 2.0 Diesel M8D2-8260-AB

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 07K121133E

Audi RS3 8V RSQ3 F3 Water Coolant Pump Regulator Flange 2.5 TFSI 07K121133E

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. rhd-A1728300600

Mercedes SLK R172 Heater Hose Water Coolant Return Pipe Hose A1728300600

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2459845

Ford Transit Mk8 Water Coolant Pipe Hose Line 2.0 EcoBlue GK21-8260-BD

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2284289-1

BMW F10 M5 F12 F13 M6 Coolant Hose Water Cooling Pipe Radiator 2284289

£80.95

Free delivery: Oct 23

If paid before 14:00

Part no. 06M121075L

Audi A4 B9 A5 S5 F5 Water Hose Cooling Radiator Coolant Pipe 3.0 TFSI 06M121075L

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 9292731

BMW i3 I01 Water Coolant Cooling Hose Return Pipe Line 9292731

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 06A121065AP

Audi A3 8P Coolant Hose Water Pump Pipe Cooling Line 1.6 Petrol 06A121065AP

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 9797612

BMW X3 G01 X4 G02 Water Hose Coolant Radiator Pipe Line Petrol 9797612

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 03L121049G

Volkswagen VW Crafter 2E Engine Water Coolant Pipe 2.0 TDI Diesel 03L121049G

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 06A121132R

VW Volkswagen New Beetle 1.6 BFS Water Coolant Flange 06A121133AC

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 06D121492J

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

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8384422

Land Rover L322 Air Con A/C Air Conditioning Pipe Hose Line 8384422

£94.95

Part no. 6985116

BMW X5 E70 X6 E71 M57N2 Coolant Hose Pipe Auxiliary Water Pump Adapter 6985116

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8C11-8B273-AA

Ford Transit Custom Water Coolant Hose Pipe Line Tube 8C11-8B273-AA

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7L0815985

Audi Q7 4L VW Touareg 7L Auxiliary Heater Coolant Hose Pipe 3.0 TDi 7L0815985

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. BK21-8260-BA

Ford Transit Mk8 Water Hose Engine Cooling Radiator Coolant Pipe BK21-8260-BA

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. CPLA-8C289-CB

Land Range Rover Vogue L405 Sport L494 Water Coolant Pipe Hose CPLA-8C289-CB

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A1332000951-1

Mercedes W176 M133 A45 AMG Coolant Pipe Hose Line Tube A1332000951

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. A6398320893

Water Hose Mercedes Vito W639 Cooling Radiator Coolant Pipe Hose A6398320893

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. RHD-4H2819372H

Audi A8 D4 Radiator Coolant Feed Hose Water Pipe Line 3.0 TDI 4H2819372H

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 06M145963D

Audi A5 S5 F5 Engine Coolant Return Hose Cooling Pipe 3.0 TFSI 06M145963D

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2399976

BMW F30 Engine Water Coolant Pipe Cooling Hose Line 2399976

£32.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6974912

BMW X5 E70 X6 E71 Coolant Pipe Line Supply Water Hose 6974912

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8841819

BMW U06 X2 U10 X1 U11 Water Coolant Return Pipe Hose Line B38X 8841819

£99.95

Free delivery: Oct 26 – Nov 2

If paid before 14:00

Part no. 2E0121447C

VW Crafter 2E 35 Mercedes Sprinter W906 Coolant Hose Pipe Line 2E0121447C

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 9382866

Heat Exchanger Hoses BMW G20 G21 X3 G01 X4 G04 Coolant Pipes Line Set 9382866

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8K0819350A

Audi RS4 B8 4.2 FSI CFSA Coolant Hose Pipe Line Tube 8K0819350A

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2475010020

Coolant Pipe Bracket Mercedes W177 W247 Water Coolant Hose Holder A2475010020

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8K0121081AB

Audi A4 B8 A5 8T Coolant Overflow Pipe Hose Fitting 2.0 Petrol 8K0121081AB

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A1688300415

Mercedes W168 Compressor Expansion Valve Suction Pipe A1688300415

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8R0819332G

Porsche Macan 95B Engine Water Coolant Pipe Hose Line 2.0 TFSI 8R0819332G

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5N0121070S-1

Audi Q3 8U Engine Cooling System Coolant Line Hose Pipe 5N0121070S

£61.95

Free delivery: Oct 23

If paid before 14:00

Part no. 80C819350B

Audi Q5 FY 2.0 TFSI Water Pipe Engine Cooling Radiator Coolant Hose 80C819350B

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A6512300956

Vacuum Pipe Mercedes W906 W639 Diesel OM651 Water Pump Line A6512300956

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2742000282

Mercedes W204 M274 Petrol Water Coolant Cooling Hose Line Pipe A2742000282

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8L9121101A

Audi TTS 8N A3 8L Water Coolant Pipe Hose Line Tube 1.8T 8L9121101A

£66.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5Q0122051BA

Volkswagen Golf Gtd 5G Audi A3 8V Water Coolant Pipe Hose Tube Line 5Q0122051BA

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 95B121109F

Porsche Macan 95B Radiator Water Coolant Pipe Return Hose Line 95B121109F

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. YC1Q8K520BA

Ford Transit MK6 2.4 TDDI Diesel Water Pipe Coolant Hose Line YC1Q8K520BA

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 03C121065F

Volkswagen VW Touran 1T Petrol Engine Coolant Pipe Hose Vent 03C121065F

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5A0C5A2

BMW F70 F74 U06 U10 U11 Mini F65 F66 Cylinder Head Coolant Hose Tube 5A0C5A2

£61.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8571621

Water Hose BMW X3 F25 X4 F26 Diesel Cooling Coolant Radiator Pipe Line 3168490

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 1J0121156AT

Volkswagen Golf Mk4 Audi A3 TT Heater Matrix Coolant Pipe Hose Line 1J0121156AT

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. RHD-8W2121609D

Audi A4 B9 S5 F5 Coolant Hose Line Engine Cooling System 3.0 TFSI 8W2121609D

£75.95

Free delivery: Oct 23

If paid before 14:00

Part no. A1330106800

Mercedes C117 W176 AMG Water Coolant Pipe Hose Line M133 A1330106800

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7634290

BMW X5 F15 X6 F16 N20 Petrol Vacuum Sucking Jet Pump Pipe Hose 7634290

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6R0122157AR

VW Volkswagen Polo Gti 6c Coolant Hose Tube Line Pipe Quick Release 6R0122157AR

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 1504285

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

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A1775019802

Mercedes C118 W177 W247 M260 Petrol Coolant Hose Line Tube Pipe A1775019802

£32.95

Free delivery: Oct 23

If paid before 14:00

Part no. BK21-8286-BK

Ford Transit Custom MK8 2.2 TDCI Water Hose Coolant Pipe Line BK21-8286-BH

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. RHD-4G2819350AD-1

Audi A6 C7 A7 4G Engine Water Coolant Hose Pipe Line 3.0 TDI 4G2819350AD

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4K0121481G

Audi A6 C8 A7 4K Coolant Pipe Water Hose Line 3.0 TFSI 4K0121481G

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7C0121082B

Volkswagen VW Crafter SY Engine Coolant Hose Line Radiator Pipe 7C0121082B

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7541146

BMW E65 E66 740i 750i Radiator Coolant Ventilation Vent Pipe Hose 7541146

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8656445

BMW i3 I01 Water Coolant Cooling Hose Return Pipe Line Hose 8656445

£47.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2E0122101F

VW Crafter 2E Mercedes Sprinter W906 Coolant Hose Pipe Line 2E0122101F

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5157192

Ford Transit Connect Water Hose Engine Coolant Pipe Line 1.8 TDCi 4T16-8B273-FB

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6R0121447E

Volkswagen Polo 6R Water Hose Radiator Coolant Cooling Pipe Line 6R0121447E

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7C0121088

Volkswagen Crafter Sy Engine Coolant Hose Line Pipe 7C0121088

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4K0122101BB

Audi A6 C8 A7 4K Water Hose Radiator Coolant Pipe Line Diesel 4K0122101BB

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6993464

Water Hose BMW X3 G01 X4 G02 Diesel Coolant Radiator Return Pipe Line 6993464

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2Q0121156B

Seat Ibiza KJ1 1.0 TSI Engine Cooling Coolant Pipe Hose Line 2Q0121156B

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7474367

BMW G20 G21 G26 G28 Diesel Passive Tank Breather Hose Pipe Line Tube 7474367

£18.95

Free delivery: Oct 23

If paid before 14:00

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