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 A7 4G8 3.0 TDI CDUC Diesel Water Coolant Hose Line Tube Pipe 4G0121071N

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. PEL500310

Land Rover Discovery 3 L319 Engine Cooling Water Hoses Thermostat PEL500340

€56.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A6401400975

EGR Exhaust Cooler Mercedes W169 W245 Heat Exchanger OM640 Diesel A6401400975

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 1K0121070BR

Volkswagen VW Golf Mk5 Water Hose Radiator Coolant Pipe Line 1K0121070BR

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8514218

Coolant Hose BMW X5 F15 X6 F16 Cylinder Head To Radiator Hose Line 8514218

€37.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7L8121065K

Audi Q7 4L 4.2 TDI Water Coolant Pipe Hose Line 7L8121070G

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7802630

BMW X5 E46 E53 Diesel Engine Cooling Water Return Pipe Hose 7787379

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7N0122073T

Volkswagen VW Tiguan 5N Water Hose Coolant Cooling Tube Pipe Line 7N0122073T

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2128300996

Water Pipe Mercedes W212 Engine Cooling Coolant Hose Line A2128300996

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 079121137F

Audi S5 8T Cooling Coolant System Flange Rear Right O/S 079121137F

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7794157

BMW X5 Series E70 Hose Pipe Water Hose 7794157

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 057121597M

Audi Q7 4L 4.2 TDI Diesel Turbocharger Coolant Pipe Hose Right O/S 057121597M

€32.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 6905941

BMW 3 Series E46 Radiator Coolant Hose Pipe Water Pump 6905941

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 03L121065K

Audi A4 B8 A5 8T 2.0 TDI Hose Thermostat Coolant Pipe Line 03L121065K

€23.95

Free delivery: Sep 11 – 14

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

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 3421989

BMW X3 Series E83 LCI Coolant Hose Pipe Line Tube 3421989

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2058303104

Coolant Hose Mercedes W205 Diesel OM651 Engine Cooling Heating Line A2058303104

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A6420701433-1

Mercedes W164 OM642 Fuel Injection Line Pressure Pipe Rail Injector A6420701433

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7649300

Coolant Radiator Line BMW F20 F21 F22 F23 F30 F32 F33 F36 Pipe Hose Tube 7649300

€23.95

Free delivery: Sep 10 – 14

If paid before 14:00

Part no. A2742030182

Coolant Hose Mercedes X253 Petrol M274 Heat Exchanger Water Line A2742030182

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A6082000300

Mercedes W177 OM608 Diesel Engine Coolant Cooling Pipe Line Hose A6082000300

€37.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7603574

Engine Oil Pump BMW F30 F32 xDrive Suction Pipe Pickup Tube Petrol 7603574

€34.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8K0122293B

Audi A4 B8 Q5 8R Water Cooling Coolant Flange Pipe Hose 2.0 TDI 8K0122293B

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7789403

BMW X5 Series E53 3.0d M57N Engine Water Pipe Engine Coolant Hose 7789403

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7546663

BMW Z4 Series E85 Roadster Cabrio Radiator Cooling Coolant Water Hose 7546663

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7800107

Coolant Hose BMW F01 F10 N57 Radiator Water Cooling Pipe Line 7800107

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2602004300

Mercedes W177 M260 Petrol Engine Coolant Cooling Hose Pipe Line A2602000300

€37.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8K0122101B

Audi A4 B8 A5 8T Heater Water Cooling Coolant Pipe Hose Line 3.0 TDI 8K0122101B

€37.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 04E122157BE

Coolant Pipe Seat Ibiza 6J VW Polo 5 1.2 TSI CBZB Turbocharger Cooling Line

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7786034

BMW E46 E60 E65 X3 E83 X5 E53 3.0d Diesel M57 M57N Turbo Air Pipe Hose 7786034

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A1685011082

Mercedes A Class W168 Radiator Expansion Tank Bottom Coolant Hose A1685011082

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A1688350197

Mercedes A Class W168 Engine Heat Exchanger Matrix Coolant Hose A1688350197

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 6912729

BMW 5 Series E60 E61 LCI Radiator And Engine Return Hose 6912729

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A6512000082

Mercedes W176 OM651 Coolant Hose Carrier Oil Water Heat Exchanger A6512000082

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A9075010200

Mercedes W907 Water Hose Engine Cooling Coolant Pipe A9075010200

€42.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7581873

Coolant Line BMW F10 N52 N53 Petrol Water Pump Engine Coolant Feed Hose 7581873

€51.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7558071

Thermostat Coolant Pipe BMW E81 E87 E90 E91 Petrol N43 Cooling Hose 7558071

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A6512032582

Mercedes W176 W242 W246 OM651 Coolant Hose EGR Cooler Feed Line A6512032582

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. LR006204

Range Rover L320 Oil Separator Breather Hose Tube Line 2.7 V6 LION 7H2Q-6A785-BB

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7521067

BMW E81 E87 E90 Petrol Radiator Engine Oil Cooling Hose Pipe 7521067

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 2754219

BMW Mini Cooper R55 R56 R57 R58 Cooling system coolant water hose 2754219

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A6071400400

EGR Exhaust Cooler Mercedes W176 W246 Heat Exchanger OM607 Diesel 147350364R

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 1K0122101JR

VW Golf 6 Audi A3 8P 1.6 TDI Water Hose Radiator Coolant Pipe Line 1K0122101JR

€23.95

Free delivery: Sep 11 – 14

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: Sep 11 – 14

If paid before 14:00

Part no. 5Q0122101BE

Audi A3 8V Water Hose Radiator Coolant Pipe Line Diesel 5Q0122101BE

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 5Q0122051BJ

Audi A3 8V 1.6 TDI CRKB Water Coolant Pipe Hose Line Tube 5Q0122051BJ

€56.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7795262

BMW E60 E60N E61 E61N LCI Coolant Hose Pipe Diesel M57N2 7795262

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2465010182

Water Pipe Mercedes C117 W176 W246 M270 Radiator Coolant Hose Line A2465010182

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 5Q0121058AC

VW Polo GTI AW Audi A3 8V Water Hose Cooling Coolant Pipe 2.0 TFSI 5Q0121058AC

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8650984

BMW G20 Water Hose Radiator Coolant Cooling Tube Pipe Line 8650984

€32.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2720700535

Fuel Line Hose Mercedes W204 W211 W212 M272 DE35 High Pressure Pipe A2720700535

€184.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8511747

Coolant Hose BMW F10 F11 LCI Radiator Cooling Water Pipe Line 8511747

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A4478323623

Mercedes Vito W447 Water Coolant Hose Cooling Pipe Line A4478323623

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8518749

BMW 1 3 Series F20 F21 F30 F31 LCI B47 Diesel Transmission Oil Cooling Hose

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2045012582

Water Hose Mercedes W204 M271 Engine Cooling Radiator Coolant Pipe A2045012582

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A6462030982

Mercedes W204 Water Hose Coolant Cooling Pipe Line A6462030982

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2602000100

Coolant Hose Mercedes W177 M260 Engine Coolant Cooling Pipe Line A2602000100

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 6C0122101E

Audi A1 8X 1.4 TFSI Water Coolant Pipe Hose Cooling Line 6C0122101E

€37.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A6402033282

Mercedes W169 W245 180CDI 200CDI OM640 Water Coolant Pipe Hose A6402033282

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7617363

Mini Cooper F55 F56 F57 F60 Radiator Engine Cooling Coolant Water Hose 7617363

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 03G121096

Audi A4 B8 2.0 TDI Water Hose Radiator Coolant Pipe Line 03G121096

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7056129

BMW E64 Water Hose Cooling System Vent 7056129

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 6C0122073B

Cooling Line VW Polo 6C Audi A1 8X 1.6 TDI Water Coolant Pipe Hose 6C0122073B

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 04L121065AN

Audi A5 8T Water Coolant Pipe Hose Line Tube 04L121065AN

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7808079

BMW X5 E70 LCI N57 N57S Water Hose Coolant Cooling Pipe Line Radiator 7808079

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2034701420

Mercedes-Benz C-Class W203 Fuel Tank Filler Neck Pipe Hose A2034701420

€32.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2642008600

Mercedes W205 M264 Petrol Engine Water Coolant Pipe Hose A2642008600

€42.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8637970

Engine Ventilation Pipe BMW F40 F46 Mini F55 F56 F60 Vacuum Line Hose 8637970

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 6950780

BMW Z4 Series E85 E86 Compressor Condenser Pressure Hose Pipe 6950780

€32.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8E0121049AC

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

€23.95

Free delivery: Sep 11 – 14

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: Sep 11 – 14

If paid before 14:00

Part no. 8662834

BMW F23 F32 F36 B38 Petrol Water Radiator Pipe Hose Coolant Cooling Line 8662834

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2468302996

Mercedes W176 Coolant Hose Heater Line to Water Pump Return A2468302996

€32.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 2380746-1

Ford Transit Custom Water Pump Outlet Housing Connector 2.0 TDCI GK2Q-8A544-BA

€37.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A6512033482

Mercedes W447 M651 Diesel Water Coolant Pipe Cooling Hose A6512033482

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7811780-1

BMW Mini Cooper R55 R56 R57 LCI R58 R59 N47N Water Pipe Coolant Hose 7811780

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7600592-1

Coolant Return Hose BMW F20 F21 F30 LCI Turbo Radiator Water Pipe Line 7600592

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 03L121064F

Volkswagen Transporter T5 Engine Coolant Pipe Hose Line 2.0 TDI 03L121064F

€47.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 3AA122157

Audi TT 8J Volkswagen Passat Water Coolant Hose Pipe Line 3AA122157

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 07L121071M

Audi S8 D3 Water Cooling Liquid Hose Coolant Pipe Line 07L121071M

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 2E0122101G

Volkswagen Crafter 2E Metal Water Hose Cooling Coolant Pipe Line 2E0122101G

€56.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7812942

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

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2128320994

Water Pipe Mercedes W212 Engine Cooling Coolant Hose Line A2128320994

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 06D121133A

Audi A4 B7 Water Coolant Engine Cooling Flange Pipe Hose Line 06D121133A

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 06F121065J

Audi A3 8P TT 8J VW Golf MK5 Coolant Water Pipe Hose Line 2.0 TFSI 06F121065J

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. -A6110701033

Mercedes W639 OM646 Fuel Line Hose Pressure Pipe Rail High Pressure Pump

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7547185

BMW 5 7 Series E60 E61 E65 545i 735i Crankcase Ventilation Vent Pipe 7547185

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 6775533

BMW 1 Series E81 E87 LCI Petrol Radiator Return Hose Line Pipe 6775533

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 9802110

BMW Mini Countryman Paceman R60 R61 Radiator Water Pipe Coolant Hose Petrol

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 9129594

BMW E81 E87N E90 N47 Diesel Cooling Radiator Water Hose Pipe 9129594

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2742034002

Coolant Pipe Mercedes W213 C238 X253 Heater Water Cooling Hose Line A2742034002

€32.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 06L121075B

Audi A4 B8 A5 8T A6 C7 Water Coolant Pipe Hose Line 1.8 2.0 TFSI 06L121075B

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 9326896

Water Hose BMW G30 G31 G11 B57 Diesel Radiator Coolant Pipe Line 9326896

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8K0121081P

Audi A4 B8 2.0 TDI CAGA Radiator Water Coolant Pipe Hose Tube Line 8K0121081P

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8580491

Hose Pipe BMW F40 B47B Mini F56 B47D Line Connection Radiator Coolant 8580491

€28.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7827842

BMW F10 X5 F15 X6 F16 Coolant Hose Cooling Pipe Water Line 7827842

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 8381224

Hose Pipe BMW X5 E53 3.0d M57N Engine Inlet Heater Coolant Auxiliary 8381224

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7800408

BMW 3 5 Series E90 E91 LCI E60 Oil Filter Cooler Connection 7800408

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 7534918

Radiator Supply Hose BMW E60 E61 N62N Petrol Cooling Pipe Line 7534918

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

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