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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Volkswagen VW Golf Mk5 Water Hose Radiator Coolant Pipe Line 1K0121051AH

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2746613

Ford Transit Custom Mk2 Coolant Hose Pipe Line 2.0 EcoBlue Diesel PZ31-8N241-PAD

£142.95

Free delivery: Oct 26 – Nov 2

If paid before 14:00

Part no. RHD-A205500200

Mercedes W205 Water Coolant Hose Pipe Radiator Petrol A2055010302

£94.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5Q0122073AN

Volkswagen Golf Mk7 Water Coolant Pipe Hose Line 1.4 TSI 5Q0122073AN

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A4475014800

Mercedes W447 OM622 Diesel Engine Radiator Coolant Hose Pipe A4475014800

£32.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7C2121124B

Volkswagen Crafter SY Coolant Hose Pipe Engine Cooling System 7C2121124B

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4G0122109

Audi A7 4G Water Cooling Coolant Hose Pipe Line Rear Left N/S 4G0122109

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7L0122101E

Volkswagen Touareg 7L Engine Water Coolant Pipe Hose 3.2 V6 Petrol 7L0122051

£42.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5Q0121070BC

Audi Q3 8U Water Hose Engine Coolant Cooling Pipe Line 2.0 TDI 5Q0121070BC

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 99610622210

Porsche Boxster 986 Coolant Return Hose Water Pipe Tube 99610622210

£13.95

Free delivery: Oct 23

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

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8571345

Coolant Hose BMW X3 F25 X4 F26 Diesel Radiator Water Pipe Line N57N 8571345

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2215011691

Mercedes CL C216 W221 Water Coolant Pipe Hose Line V8 Petrol Engine A2215011691

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. A4475014100

Mercedes Vito W447 Coolant Hose Water Cooling Pump Water Pipe Line A4475014100

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8E0121109Q

Audi A4 B7 Water Pipe Engine Cooling Radiator Coolant Hose 3.2 Petrol 8E0121109Q

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 03C121070M

Audi A1 8X Water Pipe Hose Line Engine Cooling Coolant Unit Hose 03C121070M

£13.95

Free delivery: Oct 23

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

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7540667

Radiator Return Hose BMW E60 E61 E63 N62N Petrol Pipe Cooling Water Pump 7540667

£24.95

Free delivery: Oct 23

If paid before 14:00

Part no. A1765011582

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

£42.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6R0122109G

Coolant Hose VW Polo 6R Seat Ibiza 6J 1.2 TSI Petrol CBZB Water Line 6R0122109G

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7641223

Mini Countryman R60 R61 N18 Intercooler Pipe Hose Line Tube 7641223

£61.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8J0121051P

Audi TT 8J Engine Water Coolant Pipe Hose Line 2.0 TDI Diesel Engine 8J0121051P

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. A6398305315

Coolant Hose Mercedes Vito W639 Heat Exchanger Water Pipe Diesel A6398305315

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2302974

Ford Fiesta Mk8 Puma Mk1 Radiator Coolant Pipe Hose 1.5 Petrol K1BY-8B273-SG

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. LR006000

Land Rover Discovery 3 L319 Water Coolant Pipe Hose Line 2.7 Diesel 7H2Q-6720-DA

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. BK3118K580AD

Ford Transit Mk8 Water Hose Engine Cooling Coolant Pipe Diesel BK3118K580AD

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 1K0122109CF

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

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. RHD-7C2121157A

Volkswagen Crafter SY Water Coolant Pipe Hose Line 7C2121157A

£32.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4G0819374L

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

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2045011125

Mercedes W204 W207 Engine Cooling Coolant Hose Bleed Line OM651 A2045011125

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 3C0121447L

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

£47.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2617079

Ford Fiesta Mk8 Puma Radiator Coolant Pipe Hose Line 1.5 Petrol K1BY-8B274-SG

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 1K0122096J

Seat Leon II VW Golf MK5 Audi A3 8P Water Hose Coolant Pipe Petrol 1K0122096J

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8629958

Mini F55 F56 Petrol Turbo Charger Coolant Hose Oil Return Pipe Line 8629958

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5Q0122157BP

Volkswagen Golf MK7 Audi A3 8V Water Coolant Hose 1.4 TSI 5Q0122157BP

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8R0121055H-1

Audi Q5 8R Water Cooling Pipe Coolant Hose Tube Line 8R0121055H 4F0122293A

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4G0121447CA

Audi A6 C7 A7 4GA Engine Water Coolant Pipe Hose Line Petrol 4G0121447CA

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A1645060835-1

Mercedes ML W164 Heater Radiator Coolant Pipe Hose OM642 A1645060835

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7581873

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

£47.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5A38AD6

BMW X1 U11 B38X Front Water Coolant Pipe Hose Line 5A38AD6

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. rhd-4F2819374

Audi A6 C6 Water Hose Radiator Coolant Cooling Tube Pipe Line 4F2819374

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5273748

Ford Mustang Mk6 Water Hose Engine Cooling Radiator Coolant Pipe FR33-8260-BA

£66.95

Free delivery: Oct 23

If paid before 14:00

Part no. A1645014782

Mercedes W164 Water Radiator Coolant Hose Pipe Line OM642 Diesel A1645014782

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. AH22-4090-CC

Land Rover Discovery 4 L319 Radiator Coolant Water Hoses Pipes AH22-4090-CC

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. PEL500310-1

Land Rover Discovery 3 L319 Engine Cooling Water Hoses Thermostat PEL500310

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. KK31-8A365-AB

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

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8651450

Vent Pipe BMW F10 F11 N20 Cooling Line Water Hose Radiator Cooler 7619696

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4G0819377K

Audi A6 A7 C7 3.0 TDI Coolant Water Hose Pipe Line Tube 4G0819377K

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2604269

Ford Puma Mk2 Fiesta Mk8 Water Coolant Overflow Pipe Hose Line 1.5 K1BY-8A365-SE

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 059121071CR

Porsche Macan S 95B 3.0 TDI CTBA Coolant Hose Water Pipe 059121071CR

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4G0122293CR

Audi A6 C7 Water Coolant Pipe Hose Line Tube 2.0 TDI Diesel Engine 4G0122293CR

£66.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2055010082

Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line Right O/S

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7L6122096M-1

Volkswagen Touareg 7L Water Coolant Hose Pipe Line Tube 7L6122096M

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. AH22-8B273-AA

Land Rover Discovery 4 L319 Thermostat Coolant Hose Pipe AH22-8B273-AA

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2762006051

Coolant Hose Mercedes W205 C207 C238 Turbo Cooling Pipe Line A2762006051

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2742000782

Coolant Hose Mercedes W204 Petrol M274 Engine Cooling Water Line A2742000782

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7L5122447D

Porsche Cayenne 955 957 Engine Water Coolant Hose Tube Line Pipe 7L5122447D

£51.95

Free delivery: Oct 23

If paid before 14:00

Part no. 1K0122073ER

VW Golf Mk5 Audi A3 8P Water Hose Cooling Coolant Radiator Pipe Line 1K0122073ER

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 1K0121070CA

VW Volkswagen Touran 1T 1.4 TSI CAVC Water Coolant Pipe Hose Line 1K0121070CA

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7793603

Coolant Hose Mini R50 One D W17 Diesel Water Pipe Expention Tank 7793603

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7L8121065D-1

Audi Q7 4L Engine Coolant Hose Line Tube Pipe 3.0 TDI Diesel 7L8121065D

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2360272

Ford Fiesta Mk8 Puma Mk1 Radiator Coolant Pipe Hose 1.5 Petrol K1BY-8C351-SF

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 99610650203

Porsche Boxster 986 Engine Water Coolant Pipe Hose Line 3.2 Petrol 99610650203

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5Q0122291BG

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

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. rhd-A2038301115

Mercedes W203 CLK C209 Coolant Cooling Vent Pipe Hose Line A2038301115

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8K0819342J

Audi A5 8T 2.0 TDI Coolant Water Hose Line Cooling Tube Pipe 8K0819342J

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. rhd-A1698302696

Mercedes-Benz A-Class W169 Heater Radiator Water Cooling Hose A1698302696

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7L6122447BD

VW Volkswagen Touareg 7L Audi Q7 4L Coolant Hose Pipe Line Tube 7L6122447BD

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 3AA122157

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

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6Q0122051BG

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

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2742032302

Mercedes W212 Petrol OM274 Coolant Pipe EGR Cooler Line A2742032302

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6R0121447AN

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

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 03L121071

Audi A4 B8 A5 8T A6 C6 Water Coolant Cooling Pipe Hose Line 2.0 TDI 03L121071

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. L8D2-10C754-AD

Land Rover Discovery Sport L550 Coolant Water Hose 1.5 PHEV L8D210C754AD

£32.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2782030103

Mercedes W212 Water Hose Coolant Cooling Pipe Line A2782030103

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4G0121049Q

Audi A6 C7 A7 4G Water Radiator Coolant Pipe Hose Tube Line 3.0 TFSI 4G0121049Q

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A6511400675-1

Mercedes W639 W906 OM651 Diesel EGR Exhaust Cooler Heat Exchanger A6511400275

Product currently unavailable

Part no. 2754221

Mini Cooper One R55 R56 R57 R58 R59 Upper Radiator Coolant Pipe Hose Petrol

Product currently unavailable

Part no. 7600586-1

BMW F20 F30 F31 N13 Thermostat Coolant Flange 7600586 11537600586

Product currently unavailable

Part no. A9065011482

Mercedes Sprinter W906 Water Hose Cooling Radiator Coolant Pipe Hose A9065011482

Product currently unavailable

Part no. 8518965

BMW F20 F21 F30 LCI F32 B37 B47 Radiator Expansion Tank Coolant Pipe 8518965

Product currently unavailable

Part no. 7535901

Mini Cooper R50 R52 Cooling System Coolant Radiator Water Hose 7535901

Product currently unavailable

Part no. 7790090

BMW E60 E61 M47N2 Intercooler Hose Turbo Air Charge Pipe 7790090

Product currently unavailable

Part no. 7787458

BMW 5 6 Series E60 E61 E63 M57N Diesel Cooling Radiator Hose Water Pipe 7787458

Product currently unavailable

Part no. 7811782

Mini Cooper D R55 R56 LCI R58 Diesel N47N Coolant Water Hose Pipe 7811782

Product currently unavailable

Part no. 7515501

Mini Cooper S R52 R53 W11 Petrol Radiator Water Coolant Pipe Hose 7515501

Product currently unavailable

Part no. 9802107

Mini Cooper One R60 R61 Cooling System Coolant Radiator Water Hose 9802107

Product currently unavailable

Part no. 7577964

Water Hose BMW E81 E87N 116i N43 Cooling Radiator Pipe Petrol 7577964

Product currently unavailable

Part no. A2048307496

Water Pipe Mercedes W204 W207 OM651 Cooling Coolant Hose Line A2048307496

Product currently unavailable

Part no. 7809818

Coolant Hose BMW F10 F11 Water Cooling Pipe Radiator Line N47N Diesel 7809818

Product currently unavailable

Part no. 7806706

BMW E60 E61 E65 Diesel M57N2 Radiator Coolant Return Pipe Water Hose 7806706

Product currently unavailable

Part no. A2125016482

Mercedes W204 W212 OM651 Diesel Coolant Hose Water Pipe A2125016482

Product currently unavailable

Part no. 7548223

BMW E87 E90 E91 N52 N53 Expansion Tank Heater Thermostat Line 7548223

Product currently unavailable

Part no. 7525023

BMW E81 E87 Petrol N45 N46 Cooling Radiator Water Hose Pipe 7525023

Product currently unavailable

Part no. 7617366

Mini Cooper F55 F56 F57 Cooling Radiator Expansion Tank Coolant Hose Pipe

Product currently unavailable

Part no. 7802207

BMW 5 Series E60 E61N LCI 520d N47 Brake Servo Vacuum Valve Pipe 7802207

Product currently unavailable

Part no. 7800098

BMW E90 E91 LCI E92 N57 Hose Engine Feed Radiator Top Pipe 7800098

Product currently unavailable

Part no. 6C1Q8N039AC

Ford Transit Mk7 Oil Cooler Hose Engine Coolant Pipe 2.2 TDCI 6C1Q-8N039-AC

Product currently unavailable

Part no. A2465010125

Mercedes W176 Coolant Vent Bleed Pipe Hose Expansion Tank-Radiator A2465010125

Product currently unavailable

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