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 F20 F21 F30 F31 F32 F33 F34 Pipe Coolant Hose Radiator 7811129

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. KK31-8A365-AB

Ford Transit Mk8 Expansion Tank Overflow Pipe Hose Line KK31-8A365-AB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 99610650105

Porsche Boxster 986 Radiator Heater Coolant Hose Line Tube Pipe 99610650105

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2754203

Mini Cooper One R55 R56 R57 R59 Radiator Coolant Pipe Hose Petrol 2754203

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2058309005-1

Heating Line Mercedes W205 Return Water Hose To Circulation Pump A2058309005

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6R0122101P

Volkswagen 6R Coolant Water Hose Pipe Line Radiator Cooler 6R0122101P

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2754224-1

BMW Mini Cooper R55 R56 R57 Cooling System Coolant Radiator Water Hose 2754224

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A9065010182

Radiator Hose Mercedes Sprinter W906 Diesel Water Cooling Pipe A9065010182

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122157AK

Volkswagen Golf 5G 2.0 TFSI CHHA Water Hose Radiator Coolant Pipe 5Q0122157AK

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122157AH

Skoda Superb 3V VW Golf Audi A3 Radiator Coolant Hose Pipe 5Q0122157AH

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2208323694

Mercedes CL C215 W220 Water Coolant Hose Pipe Line Petrol Engine A2208323694

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7596837

BMW F20 F21 F30 F31 F32 Petrol Radiator Coolant Hose Pipe 7596837

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0121049CL-1

Skoda Karoq NU7 Water Hose Coolant Radiator Pipe Line 1.5 TSI 5Q0121049CL

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03C121065F

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7598234

Coolant Hose BMW F20 F22 F30 N55 Engine Cooling Cylinder Head Pipe Line 7598234

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8658484

Coolant Hose BMW F40 F46 Mini F56 B38C B48D Expansion Tank Cylinder Head 8658484

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6C1118K579BD

Ford Transit Mk7 V Water Hose Engine Cooling Radiator Coolant Pipe 6C1118K579BD

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2602000051

Mercedes W177 Water Hose Water Coolant Cooling Pipe Line A2602000051

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6C118W005EA

Ford Transit Mk7 V Water Hose Engine Cooling Radiator Coolant Pipe 6C118W005FB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6R0121101K

VW Volkswagen Polo 6R 5 Water Hose Radiator Coolant Cooling Pipe Line 6R0121101K

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0122073FR

VW Volkswagen Golf Mk6 Water Coolant Hose Pipe Line Petrol Engine 1K0122073FR

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L121064AR

Seat Ateca 2.0 TDI Engine Water Coolant Pipe Cooling Hose Line 04L121064AR

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8J0121051Q

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

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7809821

Coolant Hose BMW F10 F11 N47N Radiator Water Cooling Pipe Diesel 7809821

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8571606

Coolant Hose BMW X3 F25 X4 F26 Diesel Radiator Water Pipe Line N57N 8571606

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122096E

Skoda Superb 3V Audi A3 8V VW Golf MK8 Coolant Hose Pipe 2.0 TDI 5Q0122096E

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06F121056C

Audi A1 8X A3 8P TT 8J VW Golf Mk5 Water Coolant Hose Pipe Line 06F121056C

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7290830

BMW MINI Cooper F55 F56 Seal Expansion Tank Bottom 7290830

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6542039600

Mercedes W205 W447 OM654 Water Hose Engine Cooling Coolant Pipe Line A6542039600

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06F122101A-1

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0121064AT

Skoda Octavia RS 5E 2.0 TFSI Engine Coolant Pipe Hose Line 5Q0121064AT

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7805997

BMW Mini Cooper D R55 R56 Cooling System Coolant Radiator Water Hose 7805997

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K1819376J

Audi A5 8T 2.0 TFSI Water Hose Cooling Coolant Radiator Pipe Line 8K1819376J

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059121512N

Audi A6 4G Q5 8R 2.0 TDI Diesel Water Hose Line Tube Pipe 1K0121096R 059121512N

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059121054C

Audi A8 D4 3.0 TDI Diesel Coolant Water Hose Line Tube Pipe Engine 059121054C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7796871

BMW X1 E81 E87 E90 E91 N47 Cooling Radiator Water Pipe Hose 7797259

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2055010782

Mercedes W205 Water Radiator Pipe Hose Coolant Cooling Line A2055010782

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5QF122157AB

VW Volkswagen Tiguan AX1 1.5 Petrol Engine Coolant Hose Line Tube 5QF122157AB

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2465010482

Mercedes W176 W246 OM651 Water Hose Engine Radiator Coolant Pipe A2465010482

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7604542

BMW F87 M2 F20 F30 Coolant Hose Pipe Line Tube Radiator N55 7604542

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2128300996

Water Pipe Mercedes W212 Engine Cooling Coolant Hose Line A2128300996

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. EJ32-8286-BB

Range Rover Evoque L538 Water Coolant Pipe Hose Line 2.2 Diesel EJ32-8286-BB

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2125019882

Mercedes W212 OM651 Water Pipe Engine Cooling Coolant Hose Line A2125019882

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2E0122096E-1

VW Volkswagen Crafter 2E Coolant Hoses Water Cooling Pipe 2E0122096E

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0122109

Audi A3 8P Water Hose Cooling Coolant Pipe Line 1K0122109

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4H0819334L

Audi A8 D4 3.0 TDI Heater Hose Cooling Coolant Radiator Pipe Line 4H0819334L

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2K0122101F

VW Volkswagen Caddy Maxi 2k Engine Coolant Hose Engine Tube Line 2K0122101F

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6C1Q8250B2B

Ford Transit MK7 2.2 TDCi Diesel Water Pipe Coolant Hose Line 6C1Q-8250-B2B

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0121064BB

Audi A3 8V Water Pipe Hose Engine Cooling Coolant Unit Line 5Q0121064BB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 99610662201

Porsche Boxster 986 Coolant Radiator Supply Hose Line Tube Pipe 99610662201

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5N0122073AC

Audi Q3 8U Water Hose Cooling Radiator Coolant Pipe Line 5N0122073AC

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. EJ32-7H255-AB

Range Rover Evoque L538 Water Coolant Pipe Hose Line 2.2 TDCI EJ32-7H255-AB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. M8B2-2A457-AA

Range Rover Sport L494 Coolant Pipe Hose Line Tube M8B2-2A457-AA

€142.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6910757

BMW 5 6 Series E60 E61 E63 E64 Engine Coolant Hose Pipe Water Valve Radiator

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 05L122157AS

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

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7812942

BMW F30 F31 F32 330d 430d N57N Radiator Coolant Hose Pipe 7812942

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. BK21-8286-BK-2

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

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1775016102

Coolant Pipe Mercedes C118 W177 W247 Heater Water Cooling Hose Line A1775016102

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06E121044M

Audi A6 C7 A4 B8 A7 4G A8 D3 Coolant Hose Line Tube Pipe 06E121044M

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4G0819374L

Audi A6 C7 A7 4G Coolant Hose Pipe Line 3.0 TDI CVUA 4G0819374L

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06K121075BF

Engine Coolant Pipe Audi A3 S3 8V 2.0 TFSI Water Cooling Hose Line 06K121075BF

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2742000751

Mercedes W204 Coolant Pipe M274 Petrol Coolant Water Pump Line A2742000751

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2468304596

Water Hose Mercedes W176 W246 Diesel OM651 Cooling Coolant Pipe A2468304596

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2053400400

Mercedes W205 Water Hose Cooling Coolant Pipe A2053400400

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4F0121107AH

Audi A6 C6 Water Coolant Pipe Hose Line 2.0 TFSI 4F0121107AH

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6C11-8B274-BC

Ford Transit Mk7 Water Hose Engine Cooling Radiator Coolant Pipe 6C11-8B274-BC

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 05L122157CG

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L121064AQ

Seat Ateca FR 2.0 TDI Engine Water Coolant Pipe Cooling Hose Line 04L121064AQ

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7537108

Radiator Hose BMW X5 X6 E70 E71 3.0si N52N Coolant Line Pipe Petrol 7537108

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2762001051

Mercedes W212 M276 Petrol Coolant Water Pipe Hose Line Tube A2762001051

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0121096C

Skoda Octavia Mk3 VW Golf Mk7 Water Coolant Pipe Hose Line 2.0 TFSI 5Q0121096C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2315011182

Mercedes R231 Engine Cooling Coolant Line Pipe Hose A2315011182

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8576551

BMW G01 B57 Coolant SCR Metering Line Module Thermostat Pipe Hose Tube 8576551

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K0121036E

Audi A4 B8 A5 8T A5 S5 Radiator Coolant Hose Tube Line Pipe 8K0121036E

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. AV41-8260-AC

Ford Kuga Mk1 Water Cooling Coolant Pipe Hose 2.0 TDCI Diesel AV41-8260-AC

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8053463

BMW X3 F97 X4 F98 Coolant Hose Cooling Pipe Water Radiator Line 8053463

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3Q0122073Q

Skoda Karoq Mk1 Water Cooling Coolant Pipe Hose Line 2.0 TDI Diesel 3Q0122073Q

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2712300656

Mercedes C CLK W203 C209 Kompressor Air Conditioning Suction Pipe Line

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L121064AC

Audi A3 8V Engine Water Coolant Pipe Cooling Hose Line 04L121064AC

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2465011258

Water Hose Mercedes W176 W246 OM651 Cooling Coolant Pipe Line A2465011258

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7552404

BMW 1 Series E81 E82 E87N N43 Cooling Radiator Water Hose Pipe Petrol 7552404

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6512031782

Water Hose Mercedes W176 W246 OM651 Water Coolant Pump Pipe Line A6512031782

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7799184

BMW F07 F10 F20 F30 F33 F36 G30 Engine Coolant Flange Connector Hose 7799184

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8517590

BMW X5 F15 X6 F16 Radiator Coolant Cooling Pipe Hose Line 40d Diesel 8517590

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4C1Q8B555AA

Ford Transit Mk7 Coolant Hose Water Cooling Line Pipe 4C1Q8B555AA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2465011358

Water Hose Mercedes W176 W246 OM651 Cooling Coolant Pipe Line A2465011358

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. CPLA-18B402-AC

Land Range Rover Sport L494 Water Coolant Hose Pipe Line Tube CPLA-18B402-AC

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06K121065R

Seat Leon Mk3 Cupra VW Golf GTI Water Coolant Pipe 2.0 TFSI 06K121065R

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2118328494

Water Hose Mercedes W211 C219 Heater Coolant Pipe A6512030200

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122291H

Seat Leon Cupra 5F Water Coolant Hose Line Tube Pipe Quick Coupling 5Q0122291H

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9398959

BMW G20 G21 G26 G28 G42 Expansion Tank Coolant Return Hose Pipe Line 9398959

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03C121469C

Volkswagen Golf Mk5 Engine Cooling Coolant Water Pipe Line 1.4 TSI 03C121469C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. BJ32-8260-AD

Land Rover Range Rover Evoque L538 Radiator Top Coolant Hose Pipe BJ32-8260-AD

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4G0121448BN

Audi A6 C7 A7 4G Coolant Hose Pipe Line 3.0 TDI CVUA 4G0121448BN

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059121051H

Audi A5 F5 Engine Coolant Water Pipe Hose Line 3.0 TDI Diesel Engine 059121051H

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2754223

Mini Cooper S R55 R56 R57 Cooling System Water Coolant Hose Pipe 2754223

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2K0122157BD

VW Volkswagen Caddy Maxi 2k Water Coolant Pipe Hose Tube Line 2K0122157BD

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A4475014900-1

Mercedes Vito W447 OM622 Diesel Coolant Hose Water Pipe Line Tube A4475014900

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7578399

BMW F01 F02 LCI F10 F11 Water Cooling Coolant Pipe Hose Line N53 7578399

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

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