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.

More information

Find it faster

Match to your vehicle

Make

Mercedes Vito W639 OM646 Water Hose Coolant Cooling Pump Pipe Line A6398326423

Product currently unavailable

Part no. A2035013882

Water Hose Mercedes W203 Water Coolant Cooling Pipe Line Diesel A2035013882

Product currently unavailable

Part no. A2215010891

Mercedes W221 Coolant Water Hose Pipe Line Radiator Cooler A2215010891

Product currently unavailable

Part no. A2055016200

Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line A2055016200

Product currently unavailable

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

-5%

Part no. 4G0121049Q

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

Product currently unavailable

Part no. LR025969-1

Land Rover Discovery 4 L319 Water Coolant Hose Connector Tube 3.0 AH22-8575-AF

Product currently unavailable

Part no. 7578687

BMW F10 F12 F07 GT Petrol N63 Turbocharger Coolant Feed Pipe Cyl. 1-4 7578687

Product currently unavailable

Part no. PCH503180-1

Range Rover L322 Coolant Water Pipe Hose Line 3.6 V8 Diesel PCH503180

Product currently unavailable

Part no. 06L121492C

Audi A4 B8 Q5 A8 Coolant Hose Pipe 06L121492C

Product currently unavailable

Part no. A2055000700

Mercedes W205 OM651 Water Pipe Engine Cooling Coolant Hose Line A2055000700

Product currently unavailable

Part no. A2435002800

Mercedes H243 Water Hose Radiator Coolant Cooling Pipe Line Left N/S A2435002800

Product currently unavailable

Part no. 30713306

Ford Focus St-2 Mk2 Engine Coolant Pipe Hose Tube Line 2.5 Petrol 30713306

Product currently unavailable

Volkswagen VW Golf SV Petrol Engine Coolant Pipe Hose Vent 5Q0121156C

-5%

Part no. 5Q0121156C

Volkswagen VW Golf SV Petrol Engine Coolant Pipe Hose Vent 5Q0121156C

Product currently unavailable

Coolant Hose BMW F10 F11 N20 520i 528i Radiator Water Cooling Pipe 7640917

-5%

Part no. 7640917

Coolant Hose BMW F10 F11 N20 520i 528i Radiator Water Cooling Pipe 7640917

Product currently unavailable

Part no. 8R0121081C

Audi Q5 8R 3.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 8R0121081C

Product currently unavailable

Part no. 06N121492C

Audi A4 B9 A5 F5 A6 C8 Water Coolant Hose Pipe Line 06N121492C

Product currently unavailable

Part no. 8E0121044N

Audi A4 S Line Radiator Coolant Hose Line Pipe Tube Water Cooler 8E0121044N

Product currently unavailable

Part no. 2754504

BMW Mini Clubman Cooper One D R55 R56 Radiator Engine Coolant Hose Pipe 2754504

Product currently unavailable

Part no. A1635011724

Mercedes-Benz M ML W163 270 CDI Engine Radiator Cooling Water Pipe A1635011724

Product currently unavailable

Part no. 4K0265356AC

Audi A6 C8 A7 4K Coolant Pipe Hose Line 50 TFSIe 4K0265356AC

Product currently unavailable

Part no. 9292729

BMW i3 I01 Water Coolant Cooling Hose Return Pipe Line Expansion Tank 9292729

Product currently unavailable

Part no. 06B121065

Audi A4 B7 1.8 T BFB Petrol Engine Coolant Return Pipe Hose Line 06B121065

Product currently unavailable

Part no. A2065017700

Mercedes W206 Engine Water Coolant Pipe Hose Line A2065017700

Product currently unavailable

Part no. A2435000900

Mercedes H243 Water Hose Radiator Coolant Cooling Pipe Line A2435000900

Product currently unavailable

Part no. 9X2Q9Y438CB

Jaguar XF250 3.0 306DT AJV6D Radiator Coolant Hose Line Pipe 9X2Q9Y438CB

Product currently unavailable

Part no. A6462030582

Mercedes W203 OM646 Coolant Hose EGR Valve Cooler To Engine Block A6462030582

Product currently unavailable

Part no. A2058301202

Hose Mercedes W205 Coolant Heater Hose Heating Water Line A2058301202

Product currently unavailable

Part no. 4E0121082K

Audi S8 D3 Engine Cooling Radiator Coolant Water Hose Pipe Line 4E0121082K

Product currently unavailable

Part no. A6395017982-1

Coolant Tube Mercedes W639 Coolant Water Pipe Line A6395017982

Product currently unavailable

Part no. 6Q0122447CE

Skoda Fabia Mk1 6Y Water Hose Radiator Coolant Pipe Line 1.9 Diesel 6Q0122447CE

Product currently unavailable

Part no. GK31-8286-AG

Ford Transit Mk8 Water Hose Engine Cooling Radiator Coolant Pipe GK31-8286-AG

Product currently unavailable

Part no. 059121103D

Audi A4 B8 A5 8T A6 C6 Water Coolant Hose Pipe Line 2.7 3.0 TDi 059121103D

Product currently unavailable

Part no. 9802756-1

Mini R60 R61 Radiator Pipe Coolant Hose 9802756

Product currently unavailable

Part no. A2055000800

Water Hose Mercedes W205 OM651 Coolant Pipe Line A2055000800

Product currently unavailable

Part no. 8K0121036F

Audi A4 B8 Water Hose Radiator Coolant Pipe Line 1.8 2.0 Petrol 8K0121036F

Product currently unavailable

Part no. 5Q0122051EG

Audi A3 8V Water Coolant Pipe Radiator Hose Cooling Fluid Line 5Q0122051EG

Product currently unavailable

Part no. 059121737AP

Audi A4 B9 Q7 4M Q8 Mk1 3.0 Diesel Coolant Control Regulating Valve 059121737AP

Product currently unavailable

Part no. 1317V2

Citroën C4 DS5 Peugeot 3008 308 5008 Water Coolant Pipe Hose 1.6 HDI 1317V2

Product currently unavailable

Part no. 5WA122051R

Audi A3 8Y Coolant Water Hose Line Tube Pipe 5WA122051R

Product currently unavailable

Part no. 8668740

Water Hose BMW F40 Mini F54 LCI F60 B48E Coolant Radiator Pipe Line 8668740

Product currently unavailable

Part no. 8517081

Hose BMW F13 F12 F01 F07 N57Z Engine Cooling Coolant Pipe Line 8517081

Product currently unavailable

Part no. 7619623

BMW F32 Petrol N55 Coolant Hose Engine Cooling Radiator Refrigerant Pipe 7604544

Product currently unavailable

Part no. 5QF122073AF

Audi Q3 F3 Engine Coolant Hose Line Tube 2.0 TDI 5QF122073AF

Product currently unavailable

Part no. A2138304505

Coolant Hose Mercedes W213 W238 W253 W257 Water Cooling Pipe A2138304505

Product currently unavailable

Part no. 2E0819895BB

VW Volkswagen Crafter 2E Coolant Hose Line Tube Pipe Heat Exchanger 2E0819895BB

Product currently unavailable

Part no. 8513603-1

Coolant Hose BMW F10 F11 530d N57N 1 Pipe Line Tube Radiator 8513603

Product currently unavailable

BMW E82 E90 E91 E92 135i 335i N54 Fuel Feed Rail Line Sensor 7622231

-5%

Part no. 7622751

BMW E82 E90 E91 E92 135i 335i N54 Fuel Feed Rail Line Sensor 7622231

Product currently unavailable

Part no. 4F0819373AF

Audi A6 C6 Coolant Water Heater Pipe Hose Line 4F2819371AC 4F0819373AF

Product currently unavailable

Part no. 5Q0121070AP

Audi A3 8V Water Hose Engine Coolant Cooling Pipe Line 5Q0121070AP

Product currently unavailable

Part no. 7612444-1

Cooling Hose BMW E84 N20 Petrol Engine Radiator Water Coolant Pipe Line 7612444

Product currently unavailable

Part no. A2135007200

Coolant Hose Mercedes C238 M256 Right Cooler Radiator Water Hose A2135007200

Product currently unavailable

Part no. 9800488

Mini Cooper One R60 R61 Cooling System Water Vent Hose 9800488

Product currently unavailable

Part no. 7575390

BMW F01 F02 F03 Water Coolant Cooling Pipe Hose Line Connector Petrol 7575390

Product currently unavailable

Audi A6 C7 A7 4G Heater Coolant Cooling Hose Pipe Line 4G1819350AT

-5%

Part no. 4G1819350AT

Audi A6 C7 A7 4G Heater Coolant Cooling Hose Pipe Line 4G1819350AT

Product currently unavailable

VW Tiguan 5N Engine Coolant Hose Line Tube Pipe 2.0 TDI Diesel 04L121444F

-15%

Part no. 04L121444F

VW Tiguan 5N Engine Coolant Hose Line Tube Pipe 2.0 TDI Diesel 04L121444F

Product currently unavailable

Part no. 8377701

BMW 7 Series E65 E66 E67 Hose Radiator And Engine Return PETROL

Product currently unavailable

Part no. 7P0820721K

Porsche Cayenne S 92A A/C Air Conditioning Hose Pipe Line Tube 7P0820721K

Product currently unavailable

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

-15%

Part no. A2465010125

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

Product currently unavailable

Part no. 1K0122101JR-1

VW Golf Mk6 Audi A3 8P Water Hose Radiator Coolant Pipe Line 1.6 TDI 1K0122101JR

Product currently unavailable

Part no. 2Q0122101CH

Seat Arona KJ7 Volkswagen Polo Mk6 Water Coolant Hose Pipe 1.0 TFSI 2Q0122101CH

Product currently unavailable

Part no. 5WA122109B

Audi S3 8Y VW Golf MK8 Water Coolant Pipe Hose Line 2.0 TFSI 5WA122109B

Product currently unavailable

Part no. 1C0122051G

VW Volkswagen New Beetle Lower Radiator Coolant Pipe Hose Tube Line 1C0122051G

Product currently unavailable

Part no. 92-2434

Renault Trafic II Water Hose Coolant Cooling Pipe Line Joint Connector 92-2434

Product currently unavailable

Audi A4 B7 2.0 TDI BRE Diesel Water Coolant Pipe Hose Line Tube 8K0819337A

-15%

Part no. 8K0819337A

Audi A4 B7 2.0 TDI BRE Diesel Water Coolant Pipe Hose Line Tube 8K0819337A

Product currently unavailable

Part no. 7803066

BMW F12 Cover Intercooler Lower Shield Front Cooling Assembly Protection 7803066

Product currently unavailable

Part no. 2Q0122051BL

Seat Arona KJ7 Volkswagen Polo Mk6 Coolant Cooling Hose Pipe Line 2Q0122051BL

Product currently unavailable

Audi A3 8P VW Scirocco Mk3 2.0 TDI Diesel Radiator Coolant Hose 1K0122051HD

-15%

Part no. 1K0122051HD-1

Audi A3 8P VW Scirocco Mk3 2.0 TDI Diesel Radiator Coolant Hose 1K0122051HD

Product currently unavailable

Part no. 362931

BMW X3 Series E83 E83N LCI 3.0d M57N2 Coolant Hose Pipe Radiator 0362931

Product currently unavailable

Part no. 210211534R

Water Hose Renault Trafic 2 Heater Cooling Coolant Pipe Line 210211534R

Product currently unavailable

Part no. 1K0121156BP

Volkswagen VW Golf Mk5 1K Water Hoses Radiator Coolant Pipes Lines 1K0121156BP

Product currently unavailable

Part no. 9813733

Water Hose Mini R60 R61 N47N Coolant Radiator Expansion Tank Pipe Line 9813733

Product currently unavailable

Part no. 5Q0122058Q-2

VW Golf Mk7 Skoda Octavia Mk3 Water Hose Cooling Coolant Pipe Line 5Q0122058Q

Product currently unavailable

Part no. A1684703420

Mercedes-Benz A-Class W168 Petrol Fuel Tank Filler Neck Pipe Hose A1684703420

Product currently unavailable

Part no. EB3G-8C351-CF

Ford Ranger Mk3 Radiator Water Coolant Hose Pipe Line Bottom EB3G8C351CF

Product currently unavailable

Part no. 06H121497F

Audi A4 B8 A5 8T Turbocharger Coolant Feed Pipe Hose Line 1.8 TFSI 06H121497F

Product currently unavailable

Part no. 924386604R

Renault Trafic Mk2 Water Coolant Hose Pipe Line 924386604R

Product currently unavailable

Part no. 8K0819345H

Audi A4 B8 Coolant Cooling Engine Pipe Hose Line Radiator 8K0819345H

Product currently unavailable

Part no. 4G0145922C

Audi A6 C7 3.0 TFSI Water Coolant Pipe Hose Line 4G0145922C

Product currently unavailable

Part no. 4G0122101G

Audi A6 C7 2.0 TDI CGLC Water Coolant Hose Line Tube Pipe 4G0122101G

Product currently unavailable

Part no. 06A121492F

VW Volkswagen Golf Gti 1j Coolant Pipe Hose Tube Line 1.8T Petrol 06A121492F

Product currently unavailable

Part no. 1716837-1

Ford Transit Mk7 Water Coolant Pipe Hose Line 2.2 TDCi 8C11-8B273-AB

Product currently unavailable

Part no. A2135019801

Coolant Hose Mercedes W213 C238 Diesel OM656 Water Line A2135019801

Product currently unavailable

Part no. 5N0121065-1

Volkswagen Tiguan 5N Water Pipe Hose Coolant Cooling Line 5N0121065

Product currently unavailable

Part no. 6G91-8B160-KB

Ford Mondeo Mk4 Water Hose Cooling Coolant Pipe Outlet Line 6G91-8B160-KB

Product currently unavailable

Part no. M8D2-8286-AB

Land Rover L550 Range Rover Evoque L551 Water Coolant Hose M8D2-8286-AB

Product currently unavailable

Part no. 5N0122157AJ

Volkswagen VW Tiguan 5N Water Pipe Hose Coolant Cooling Line 5N0122157AJ

Product currently unavailable

Part no. 03L121157AJ

Audi A4 B8 A5 8T Q5 8R Water Coolant Pipe To EGR Cooler 2.0 TDi 03L121157AJ

Product currently unavailable

Part no. A2055016900

Mercedes W205 M276 C43 AMG Water Coolant Pipe Hose Line Tube A2055016900

Product currently unavailable

Part no. 03L121157AE-2

Audi A6 S6 4G 4F Q5 8R Engine Coolant Pipe Hose Tube Line 2.0TDi 03L121157AE

Product currently unavailable

Part no. 8K1819350BB

Audi A4 B8 A5 8T 2.0 TDI Water Coolant Hose Pipe Line 8K1819350BB

Product currently unavailable

Part no. A6512031882

Mercedes W204 W212 Coolant Hose OM651 Diesel Heater Water Pipe A6512031882

Product currently unavailable

Part no. A6511400700

EGR Exhaust Cooler Mercedes W204 W212 Heat Exchanger OM651 Diesel A6511400775

Product currently unavailable

Part no. 074121132

Volkswagen LT35 2.5 TDI Diesel Coolant Water Flange Temp Sensor 074121132

Product currently unavailable

Part no. 3C0122101EM

Audi A3 8P 2.0 TDI Water Hose Radiator Coolant Pipe Line 3C0122101EM

Product currently unavailable

Part no. 4F0121101

Audi A6 C6 FL Coolant Water Quick Connect Heater Pipe Hose 4F0121101

Product currently unavailable

Part no. 3Q0122051CC

Volkswagen Caddy SB Engine Coolant Radiator Coolant Pipe Hose Line 3Q0122051CC

Product currently unavailable

Part no. A9065014482

Mercedes Sprinter W906 Water Hose Cooling Radiator Coolant Pipe Line A9065014482

Product currently unavailable

Part no. 5Q0122101GK

Audi A3 8V Water Coolant Hose Line Pipe Tube 1.5 TFSI DADA 5Q0122101GK

Product currently unavailable

Part no. A2535019482

Coolant Hose Mercedes X253 GLC220D Right Cooler Hose Line To Engine A2535019482

Product currently unavailable

...

Showing 3367-3465 of 3950 products