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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122051AE

Audi A4 B7 Water Hose Cooling Coolant Radiator Pipe Line 1K0122051AE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GK21-8C350-BG-1

Ford Transit Custom 2.0 EcoBlue Coolant Hose Water Pipe Line GK21-8C350-BG

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8573220

Water Hose BMW G30 G31 G11 B57 Diesel Radiator Coolant Pipe Line 8573220

€33.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1645060035

Mercedes X164 Engine Water Hose Tube Line Pipe M272 M273 5.5 Petrol A164506003

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0819374R

Audi A6 Allroad A7 4G8 Sportback Heater Coolant Hose Pipe Line Tube 4G0819374R

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0122101H

Audi A3 8V Water Coolant Hose Line Pipe Tube 1.4 TFSI Petrol CMBA 5Q0122101H

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8474929

Water Hose BMW G20 G21 G30 G31 Water Coolant Pump Pipe Connector 8474929

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2742002051

Coolant Pipe Mercedes W213 X253 M274 Engine Cooling Feed Water Hose A2742002051

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7585741

BMW Z4 Series E89 Line Heater Return Thermostat Pipe Hose 7585741

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8656443

BMW i3 I01 Rex Hybrid Water Hose Cooling Coolant Pipe Line Radiator 8656443

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR125486

Range Rover Sport L494 Defender L663 Coolant Water Hose Pipe K6D3-8A512-BA

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8571621

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CC11-8286-BC

Ford Transit Mk7 Radiator Coolant Hose Tube Pipe Line CC11-8286-BC

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2048306396

Mercedes W204 W207 Diesel Water Line Coolant Hose Ruber Pipe A2048306396

€27.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 059121454C

Audi A4 B8 A6 C7 A8 D4 A7 4K Radiator Coolant Hose Pipe Line 3.0 TDI 059121454C

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4K0819374AC

Audi A6 C8 Engine Water Coolant Pipe Hose Cooling Line Tube 50 TFSIe 4K0819374AC

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06K121065Q

Audi TT FV Water Coolant Pipe Hose Line 06K121065Q

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AV41-8286-AC

Ford Kuga MK1 Water Coolant Radiator Pipe Hose Line 2.0 TDCI AV41-8286-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8R0121049P

Audi Q5 8R Water Coolant Pipe Hose Line Connector 2.0 TDI 8R0121049P

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2478303800

Mercedes W177 W247 Coolant Pipe Heat Exchange Return Hose A2478303800

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GK21-8C351-BD

Ford Transit Mk8 Coolant Water Pipe Hose 2.0 TDCi GK21-8C351-BD

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C0122447K

Audi A1 8X Polo 6C Water Coolant Hose Pipe 1.4 TSI TFSI 6C0122447K

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2535014200

Coolant Pipe Connector Mercedes W213 H243 Hybrid Cooling Hose Link A2535014200

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6R0122101P

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0122073L

Audi A3 8V Engine Water Coolant Pipe Tube Line Hose 1.4 TFSI Petrol 5Q0122073L

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V0121073

Audi RS3 8V Water Pipe Hose Line Engine Cooling Coolant Unit Hose 8V0121073

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CC11-8286-BC-1

Ford Transit Mk7 Radiator Coolant Hose Tube Pipe Line CC11-8286-BC

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 059131056R

Audi A4 B8 A7 4G8 A6 4G C7 Q7 4L 3.0 TDi V6 EGR Vacuum Hose Pipe Line 059131056R

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0121081BH

Audi A4 B8 A5 8T Coolant Breather Hose Pipe Line 1.8 TFSI Petrol 8K0121081BH

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FPLA-8C202-CB

Range Rover Sport L494 Coolant Hose Pipe Line 3.0 Diesel Engine FPLA8C202CB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3421987

BMW X3 Series E83 LCI E83N Radiator Cooling System Water Hose Pipe 3421987

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8571617

Coolant Hose BMW X3 F25 18dX 20dX Diesel Heater Water Pipe Line Hose 8571617

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1725010682

Mercedes SLK R172 Diesel OM651 Coolant Hose Left N/S Radiator Line A1725010682

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. H43-5000-000

Jaguar XK8 X100 Heater Coolant Control Valve Hose Pipe Tube Line H43-5000-000

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0122447BD

Audi Q3 8U Water Coolant Cooling Pipe Hose Line 2.0 TDI Diesel 5N0122447BD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7E0121086Q

Volkswagen Transporter T5 T6 Engine Coolant Hose Cooling Water Pipe 7E0121086Q

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5K0121064A

Volkswagen Passat B7 CC Water Coolant Pipe Hose 2.0 TDI CFGC 5K0121064A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03C121065F

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7537605

BMW F20 F21 Water Coolant Hose Pipe N13 Petrol 7537605

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0819377AA

Audi A5 8T Water Hose Cooling Radiator Coolant Pipe Line 8K0819377AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8654824

BMW G20 G21 Petrol Coolant Hose Expansion Tank Cylinder Head Pipe Line 8654824

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03N122157E

VW Volkswagen Tiguan AD1 Water Coolant Pipe Hose Line 2.0 TDI Diesel 03N122157E

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0122157AT

Audi A3 8V VW Golf 5G Engine Water Coolant Tube Pipe 1.4 TFSI Petrol 5Q0122157AT

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. L8D2-8B160-AD

Land Rover Discovery Sport L550 Water Coolant Pipe Hose 1.5 PHEV L8D2-8B160-AD

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8572908

Water Hose BMW G30 G31 G11 B57 Diesel Coolant Expansion Tank Pipe Line 8572908

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06L133583G

Audi A4 B9 Water Coolant Pipe Hose Line 2.0 TFSI Petrol 06L133583G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2712002552

Water Pipe Mercedes W204 M271 Engine Cooling Radiator Coolant Hose A2712002552

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7540666

Radiator Return Hose BMW E60 E61 E63 N62N Petrol Pipe Cooling Water 7540666

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. K8D2-8274-AC

Land Rover Discovery Sport L550 Coolant Hose Pipe Line K8D2-8274-AC

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7611148

BMW F01 F01 LCI F02 F02 LCI F03 F03 LCI Coolant Hose Tube Pipe Line 7611148

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0816743AP

Audi S6 C7 A7 Refrigerant Hose Pipe Line 4G0816743AP

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5182585

Ford Mondeo Mk5 Coolant System Hose Pipe Line 2.0 Petrol Engine DS78-8286-BB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7952843

Mini F65 F66 F67 BMW F70 F74 Engine Coolant Hose Pipe 2.0 Petrol 7952843

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0122055CA-1

Audi A4 B9 A5 F5 Engine Water Coolant Pipe Hose Line 2.0 TDI 8W0122055CA

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121058BH

Volkswagen Touran 1T Oil Cooler Coolant Pipe Hose Tube 1.4 Petrol 1K0121058BH

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C11-8B274-EE

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6512033082

Mercedes W212 OM651 Coolant Hose Connector Thermostat Pump Outlet A6512033082

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2249206

BMW 1 3 4 5 F10 F20 F30 F32 Turbocharger Oil Supply Hose Pipe Diesel 2249206

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7604542

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7559476

Mini Cabrio R50 R52 Lower Radiator Coolant Pipe Hose Line 7559476

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0819350D

Audi A4 B8 A5 8T Coolant Cooling Hose Pipe Line Tube 2.0 TDI 8K0819350D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0121070F

Volkswagen Tiguan 5N Water Coolant Cooling Pipe Line 2.0 TDi Diesel 5N0121070F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1725012982

Mercedes SLK R172 Water Hose Radiator Coolant Cooling Pipe Line A1725012982

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2035016382

Water Hose Mercedes W203 W209 M272 Expansion Tank Coolant Pipe Line A2035016382

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2215010225

Mercedes W221 Water Hose Radiator Coolant Cooling Pipe Line A2215010225

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3AA122051A

Volkswagen Passat B7 CC Water Coolant Pipe Hose 2.0 TDI CFGC 3AA122051A

€23.95

Free delivery: Nov 12 – 13

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. L8D2-18N252-AC

Land Rover Discovery Sport L550 Coolant Water Hose Pipe Hose Line L8D2-18N252-AC

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L8121058

Audi Q7 4L 4.2 TDI Coolant Hose Radiator Pipe Water Cooling Line 7L8121058

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9671124980

Water Hose Peugeot 207 1.6 HDI Engine Cooling Coolant Pipe Line 9671124980

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0819374M

Audi A6 C7 A7 4G Heater Coolant Cooling Hose Pipe Line 4G0819374M

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8511303

BMW X5 E70 Radiator Coolant Hose Line Tube Pipe 8511303

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2218320423

Mercedes-Benz S W221 Diesel OM642 Water Coolant Cooling Pipe Hose A2218320423

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4R83-8C289-AD

Jaguar XF X250 XJ X350 Coolant Hose Pipe Line 2.7 Diesel 4R83-8C289-AD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121447BN

Volkswagen Golf Mk6 Audi A3 8P Water Coolant Pipe Hose 1.6 FSI BLF 1K0121447BN

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8512419

BMW X3 F25 Coolant Water Hose Cooling Radiator Pipe Line 35dX N57Z 8512419

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0121109H

Audi A5 8T Water Hose Cooling Coolant Radiator Pipe Line 2.0 TDI 8K0121109H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C0122051CS

Volkswagen Passat B6 Engine Coolant Hose Pipe Tube Line 2.0 TDI 3C0122051CS

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH22-8584-AC

Land Rover Discovery 4 L319 Water Coolant Pipe Hose Line 3.0 D AH22-8584-AC

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8514233

Coolant Hose BMW F10 520d X3 F25 20dX N47N Radiator Water Cooling Pipe 8514233

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7843266

Coolant Hose BMW F10 M5 F12 F13 M6 Engine Cooling Pipe Line 7843266

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0122101BP-1

Audi A3 8V Water Coolant Radiator Pipe Hose Line 2.0 TDI 5Q0122101BP

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 078133753A

Audi RS4 B7 Jet Pump Intake Vacuum System Pipe Hose Line 4.2 FSI 078133753A

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2754220-2

Mini Cooper S R55 R56 R57 N14 Engine Radiator Coolant Cooling Hose Pipe 2754220

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2314903

Ford Ranger Mk6 Engine Water Coolant Hose Pipe 2.0 EcoBlue Diesel JB3G-9U469-AD

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH22-9A263-AC

Land Rover Discovery L319 Water Coolant Pipe Hose Line 3.0 Diesel AH22-9A263-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C1118K582DB

Ford Transit Mk7 Water Hose Coolant Line 2.2 TDCi 6C1118K582DB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6Q0121109BF

Skoda Fabia Mk1 6Y Water Hose Radiator Coolant Pipe Line 1.9 Diesel 6Q0121109BF

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9091603084

Lexsus LS400 Cooling Coolant Thermostat Water 9091603084

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0133366BB

Audi A3 8P A4 B7 Golf Mk6 Water Coolant Pipe Hose Line 2.0 TSI 1K0133366BB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9802099-2

Mini Countryman R60 Paceman R61 Coolant Water Cooling Hose Pipe Line 9802099

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8J0121447E

Audi TT 8J Engine Coolant Vent Hose Pipe 2.0 TDI Diesel CBBB 8J0121447E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0816743D

Audi A3 8V VW Golf Mk7 Air Conditioning Hose A/C Pipe Line 5Q0816743D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8654852

BMW G20 G21 Water Coolant Return Pipe Hose Line Tube B48X 8654852

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121049CG-1

Volkswagen Golf Mk6 Jetta Mk5 Radiator Water Pipe Hose 1.4 TSI 1K0121049CG

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8U0121485

Audi RSQ3 8U Front Water Coolant Pipe Hose Line Tube 2.5 TFSI 8U0121485

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KK21-8W005-BC

Ford Transit Custom Mk8 Coolant Radiator Pipe Hose Line KK21-8W005-BB

€23.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. 05L122157CD

Audi A5 F5 Engine Coolant Hose Tube Line Pipe 2.0 TDI Diesel DTNA 05L122157CD

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

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