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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Audi R8 42 Engine Coolant Pipe Water Hose Cooling Line Tube 420121030A

€56.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 2N0122073H

Volkswagen Crafter Mk2 Water Coolant Pipe Hose Line 2.0 TDi Diesel 2N0122073H

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9802099

Coolant Pipe Mini Cooper R60 R61 N18 Water Cooling Hose Line 9802099

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1K0121070CM

Volkswagen Golf Mk6 Scirocco Mk3 Audi A3 8P Water Coolant Pipe 1K0121070CM

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2055010800

Mercedes W205 Intercooler Water Pipe Radiator Cooling Coolant Hose A2055010800

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8675285

BMW F21 LCI F22 LCI F31 LCI Engine Radiator Water Hose Tube Line Pipe 8675285

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A6542032901

Mercedes C118 Water Coolant Pipe Hose Line A6542032901

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2055010182

Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line Left N/S A2055010182

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6Q0122101AP-1

Skoda Fabia Mk1 6Y Water Hose Cooling Coolant Pipe Line 1.9 Diesel 6Q0122101AP

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 4G0122445L

Audi A6 C7 A7 4G Coolant Cooling Pipe Hose Line Petrol Engine 4G0122445L

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 059131425A

Audi Q5 8R Water Cooling Coolant Pipe Line Connector Bracket 059131425A

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8W0819332E

Audi A4 S4 B9 3.0 TFSI Water Hose Cooling Engine Coolant Pipe Line 8W0819332E

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5Q0122291BG

VW Volkswagen Golf R MK7 Engine Water Coolant Pipe Hose Coupling 5Q0122291BG

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2742000115

Coolant Hose Mercedes W204 C207 W212 M274 Thermostat Line Pipe A2742000115

€37.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8853292

BMW F20 F21 F22 F32 Turbo Coolant Feed Line Pipe Hose Tube 8853292

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 03L121131K

VW Transporter T5 2.0 TDI CAAA Sealing Flange Temperature Sender 03L121131K

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 420121082B

Audi R8 42 Engine Coolant Pipe Water Hose Cooling Line Tube 420121082B

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1511102

Ford Mondeo Mk4 S-Max Galaxy Coolant Pipe Hose 2.2 TDCi Diesel 8G91-8260-AC

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1K0122109CM

Volkswagen Golf Mk6 Scirocco Mk3 Water Coolant Pipe Hose 1.6 TDI 1K0122109CM

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7P0121065AC-1

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8853293

BMW F20 F21 F32 N20 Turbo Charger Coolant Return Line Pipe Hose Tube 8853293

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. AH22-7752-AC

Land Rover Discovery 4 L319 Coolant Water Pipe Hose 3.0 Diesel AH22-7752-AC

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6902683

BMW 3 Series E46 Hose Engine Inlet Diesel Water Pump 6902683

€25.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7802632

BMW E87 E90 E91 Cooling Radiator Water Coolant Hose Pipe Diesel Engine 7802632

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9208183

BMW F30 F32 LCI 330d 335dX 430d 435dX Engine Radiator Return Coolant Hose Pipe

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. YC1Q-8A544-AC

Ford Transit MK7 TDCI Water Pump Pipe Engine Coolant Flange YC1Q-8A544-AC

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2468302796

Mercedes W176 W246 OM651 Radiator Water Coolant Hose Engine Cooling A2468302796

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8K0121055N

Audi A4 B8 A5 8T 1.8 2.0 TFSI Petrol Engine Water Coolant Pipe Hose 8K0121055N

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8K0819334BC

Audi A4 B8 A5 8T Water Coolant Hose Line Pipe 3.0 TFSI Petrol 8K0819334BC

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 3401564

BMW X3 Series E83 2.0d Cooling Radiator Expansion Tank Coolant Hose Pipe 3401564

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5Q0121058R

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2742002551

Mercedes W213 Water Hose Cooling Coolant Pipe Line A2742002551

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 059121075ES

Audi A6 C7 A7 4G Q7 4M Engine Coolant Water Pipe 3.0 TDI 059121075ES

€99.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2055011700

Mercedes W205 Water Hose Engine Coolant Cooling Pipe Line A2055011700

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 06E121083G

Audi S4 B8 S5 8T Water Hose Coolant Pipe Line Tube 3.0 TFSI 06E121083G

€118.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8650981

BMW G20 Water Hose Radiator Coolant Cooling Tube Pipe Line 8650981

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5QF122051BB

Volkswagen Tiguan AX1 1.5 Petrol Engine Coolant Hose Line Tube Pipe 5QF122051BB

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8J0121109A

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5Q0121070AG

VW Scirocco Mk3 Golf 5g Jetta A6 Water Coolant Pipe Hose Line Tube 5Q0121070AG

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7518503-4

Mini Cooper S R52 R53 Engine Cooling Coolant Line Pipe Hose 7518503

€56.95

Free delivery: Aug 7 – 11

If paid before 14:00

Part no. 3Q0122058G

Skoda Karoq VW Golf Mk8 Coolant Hose Quick Release Coupling 2.0 TDI 3Q0122058G

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 3Q0121064AM

VW Volkswagen Golf Cd1 Coolant Pipe Hose Tube Line 2.0 Diesel 3Q0121064AM

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6921428

BMW 5 6 Series E60 E63 E64 LCI Engine Cooling Radiator Water Hose Pipe 6921428

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. GK2Q-8N039-AC

Ford Transit Mk8 Engine Coolant Hose Pipe Line 2.0 Diesel GK2Q-8N039-AC

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 98710650804

Porsche Boxster Cayman 987C Engine Coolant Pipe Water Guide Housing 98710650804

€127.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 059121071CK

Audi Q7 4L 3.0 TDI Diesel Coolant Water Pipe Hose Line 059121071CK

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2185012882

Water Hose Mercedes C207 W212 W218 Engine Cooling Coolant Pipe A2185012882

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 3C0121447L

Audi A3 8P VW Passat 3C Touran 1T Coolant Hose Pipe Line Tube 3C0121447L

€56.95

Free delivery: Aug 10 – 11

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 10 – 11

If paid before 14:00

Part no. LR081668

Land Range Rover Sport L494 Water Heater Hose Tuber Pipe Line HPLA-8A589-CA

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1K0122063D

VW Volkswagen Mk5 V Mk6 VI 2.0 Petrol Water Coolant Pipe Hose Line 1K0122063D

€23.95

Free delivery: Aug 10 – 11

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 10 – 11

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 10 – 11

If paid before 14:00

Part no. 059121511CT

Audi Q7 4M Q8 Mk2 Water Coolant Hose Line Tube Pipe 3.0 Diesel 059121511CT

€80.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1K0121109AK

Audi A3 8P Water Cooling Coolant Pipe Hose Line Petrol Engine 1K0121109AK

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1K0122051GL

Audi S3 8P VW Golf VI Water Coolant Hose Radiator Pipe Line 2.0 TFSI 1K0122051GL

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 94810604907

Porsche Cayenne Turbo 9PA Engine Water Coolant Pipe Tube Line Hose 94810604907

€66.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2538308801

Heater Coolant Hose Mercedes C253 W213 Water Pump Heater Line A2538308801

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 06K121085M

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

€23.95

Free delivery: Aug 10 – 11

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 10 – 11

If paid before 14:00

Part no. 6796332-1

BMW E90 E91 E92 N47 Power Steering Fluid Reservoir Pipe 6796332

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 059121512AE

Audi A6 C7 A7 4G Engine Coolant Water Pipe Line 3.0 TDI Diesel 059121512AE

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6R0121447AN

Seat Ibiza 6J VW Polo 6R Coolant Water Hose Pipe 1.2 TDI 6R0121447AN

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A6542033401

Mercedes W177 Water Coolant Cooling Pipe Line Hose A200d Diesel A6542033401

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7648352

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 4G0145919J

Audi A6 C7 A7 S7 4G Water Pipe Hose Engine Cooling Coolant Unit Line 4G0145919J

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9166925

BMW X3 F25 N47N Diesel Engine Water Hose Coolant Cooling Pipe Line 9166925

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7592646

Hose BMW F13 Coupe N63 Heat Exchanger Coolant Cooling Pipe Line 7592646

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A1765011582

Mercedes W176 C117 X156 M133 Petrol Engine Water Coolant Hose Pipe A1765011582

€47.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 2754222-2

Coolant Hose Mini Cooper R55 R56 R57 Cooling System Radiator Water Pipe 2754222

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9292728

BMW i3 I01 Water Coolant Cooling Hose Supply Pipe Line 9292728

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. LR125477

Range Rover Sport L494 Water Coolant Pipe Hose Line 3.0 MHEV K6D3-8C481-AB

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9894757

BMW X3 G01 X4 G02 Coolant Cooling Pipe Hose Line B48 Petrol Engine 9894757

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 99710655103

Porsche Cayman 987 Engine Cooling Coolant Hose Connector Sleeve 2.7 99710655103

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A1332000053

Mercedes CLA W176 AMG M133 E20 Coolant Hose Cooling Water Pipe Line A1332000053

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2058309005

Heating Line Mercedes W205 Return Water Hose To Circulation Pump A2058309005

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8K0819332J

Audi A5 8F 2.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 8K0819332J

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9X2Q-6C661-BB

Land Rover Discovery 4 L319 Coolant Hose Pipe Line Tube 9X2Q-6C661-BB

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5N0121109F

Audi Q3 8U Engine Water Coolant Pipe Hose Line 1.4 TFSI 5N0121109F

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 079121070CK

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

€37.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1503721

Ford Mondeo Mk4 Engine Cooling Coolant Hose Tube Line Pipe 6G91-8274-EE

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8054850

Coolant Hose BMW X3 F97 X4 F98 Cooling Pipe Radiator Return Line 8054850

€66.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7C0121444A

Volkswagen Crafter SY 2.0 TDI Engine Water Coolant Pipe Hose Line 7C0121444A

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8W0121400B

Audi A4 B9 Oil Coolant Hose Pipe Line Tube 8W0121400B

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7N0122101F

Volkswagen Sharan 7N Engine Cooling Water Pipes Hoses 1.4 TSI 7N0122101F

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A1765011382-1

Water Hose Mercedes C117 W176 AMG Cooling Coolant Pipe Line A1765011382

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 06K121051P

Volkswagen Scirocco Mk3 Audi A3 8P Coolant Pipe Hose Line Tube 06K121051P

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8054849

Coolant Hose BMW X3 F97 X4 F98 Cooling Pipe Radiator Return Line 8054849

€66.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5Q0122101CJ

Volkswagen Golf R Mk7 Coolant Hose Tube Quick Coupling 2.0 TFSI CJXB 5Q0122101CJ

€56.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6R0121447E

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

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2058301701

Mercedes W205 W213 W238 Cooling Engine Water Coolant Hose Pipe A2058301701

€37.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A6542039600-2

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5Q0121064AG

Audi A3 8V Engine Water Coolant Pipe Hose Line 2.0 TDI 5Q0121064AG

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5Q0121070BQ-1

Audi S3 8V Water Hose Engine Coolant Cooling Pipe Line Tube 5Q0121070BQ

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6Q0122051BG

Skoda Fabia Mk1 6Y Water Hose Radiator Coolant Pipe Line 1.9 Diesel 6Q0122051BG

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. A2742000053

Mercedes W204 C207 W212 Cooling Engine Water Coolant Hose Pipe A2742000053

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 3Q0122051BL

Skoda Karoq Coolant Hose Water Pipe Hose Line 2.0 TDI 3Q0122051BL

€47.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7591692

BMW F10 F11 F12 F13 Filler Neck Expansion Tank Coolant Hose Petrol 7591692

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 4G0122109A

Audi A7 4G Water Cooling Coolant Hose Pipe Front Left N/S 3.0 TDI 4G0122109A

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

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