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

Make

Volkswagen Audi Seat Skoda Water Hose Radiator Coolant Pipe Line 1K0122447T

Product currently unavailable

Part no. 1K0121086AF

Audi A3 8P VW Golf Mk6 Coolant Hose Pipe Line Diesel 2.0 TDI 1K0121086AF

Product currently unavailable

Part no. 7N0121051D

VW Volkswagen Sharan 7N Water Pipe Hose Coolant Cooling Line 7N0121051D

Product currently unavailable

Part no. 06K121051M

Volkswagen Golf R Mk7 Audi A3 8V Coolant Pipe Hose 2.0 TSI 06K121051M

Product currently unavailable

Part no. 1K0121064C

Volkswagen Golf Mk6 Water Coolant Pipe Hose Line 2.0 Diesel Engine 1K0122447GR

Product currently unavailable

Part no. 5Q0121156D

VW Volkswagen Golf Mk8 Water Pipes Hoses Coolant Cooling Line 5Q0121156D

Product currently unavailable

Volkswagen Touareg 7L Water Flange For Cooling System 3.2 V6 Petrol 022121085A

-0%

Part no. 022121085A

Volkswagen Touareg 7L Water Flange For Cooling System 3.2 V6 Petrol 022121085A

Product currently unavailable

Part no. 1K0122109T

Volkswagen Golf Mk5 Engine Coolant Pipe Hose Line 1.6 Petrol 1K0122109T

Product currently unavailable

Part no. 1K0121049CG

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

Product currently unavailable

VW Volkswagen Amarok NF Coolant Hose Line Tube Pipe MB3G-18D476-FF

-15%

Part no. MB3G-18D476-FF

VW Volkswagen Amarok NF Coolant Hose Line Tube Pipe MB3G-18D476-FF

Product currently unavailable

Part no. 5Q0122291AA

Volkswagen Golf Mk6 Scirocco Mk3 Passat B8 Water Coolant Pipe 5Q0122291AA

Product currently unavailable

Part no. 3Q0121064AC

Volkswagen Golf Mk8 Engine Coolant Water Pipe Hose Line 2.0 TDI 3Q0121064AC

Product currently unavailable

Part no. 1K0121049DJ

Volkswagen Touran 1T Coolant Hose Pipe Line Quick Release Coupling 1K0121049DJ

Product currently unavailable

VW Volkswagen Touran 2.0 TDI BKD Water Hose Coolant Pipe Line 1K0121070F

-5%

Part no. 1K0121070F

VW Volkswagen Touran 2.0 TDI BKD Water Hose Coolant Pipe Line 1K0121070F

Product currently unavailable

Volkswagen VW Golf Mk5 Water Hose Radiator Coolant Pipe Line 1K0121447T

-5%

Part no. 1K0121447T

Volkswagen VW Golf Mk5 Water Hose Radiator Coolant Pipe Line 1K0121447T

Product currently unavailable

Part no. 7H0121065C

Volkswagen T5 7H 7J Transporter Coolant Pipe Hose Tube Line Diesel 7H0121065C

Product currently unavailable

Part no. 059121075CB

Volkswagen Touareg 7L Water Coolant Hose Pipe 3.0 TDI Diesel Engine 059121075CB

Product currently unavailable

Part no. 7E0122073L

VW Transporter T5 Heat Exchanger Heater Coolant Hose Pipe Line 7E0122073L

Product currently unavailable

Part no. 7L6122051H

Volkswagen Touareg 2.5 TDI Water Hose Radiator Coolant Tube Pipe Line 7L6122051H

Product currently unavailable

Part no. 3C0122073FB

Volkswagen Passat B6 Audi TT 8J Water Coolant Hose Pipe 2.0 TDI 3C0122073FB

Product currently unavailable

Part no. 7H0122157BC

VW Volkswagen Transporter T5 Heat Exchanger Coolant Hose Pipe Line 7H0122157BC

Product currently unavailable

Part no. 5N0121253P

Volkswagen Tiguan 5N Coolant Radiator Line Pipe Cooler Tube 5N0121253P

Product currently unavailable

Part no. 6R0121070M

VW Seat Skoda1.2 TDI CFWA Coolant Pipe Return Radiator Expansion Tank 6R0121070M

Product currently unavailable

Part no. 04L122073E

VW Scirocco Mk3 Jetta A6 Audi A3 8V Q3 8U Coolant Pipes Hoses 2.0 TDI 04L122073E

Product currently unavailable

Part no. 03C121050J

Volkswagen Golf Mk5 Heater Water Cooling Pipe Hose Line 2.0 TDI 03C121050J

Product currently unavailable

Part no. 1K0121156CQ

VW Volkswagen Eos 1f Upper Coolant Flange Pipe Water Hose Tube Line 1K0122291A

Product currently unavailable

Part no. 5N0122157AJ

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

Product currently unavailable

Part no. 8R0201892

Audi A4 B8 A5 8T TDI Diesel Water Coolant Cooling Pipe Hose Line 8R0201892

Product currently unavailable

Part no. 03L121151L

VW Volkswagen Sharan 7N Water Pipes Hoses Coolant Cooling Line 03L121151L

Product currently unavailable

Part no. 045121065M

VW Volkswagen Polo 9N 1.4 TDI Coolant Pipe Hose Line Tube 045121065M

Product currently unavailable

Part no. 7E0121086H

VW Volkswagen Transporter T5 2.0 TDI CAAA Coolant Hose Pipe Line 7E0121086H

Product currently unavailable

Part no. 7H0121065P

Volkswagen Transporter T5 Coolant Water Pipe Hose Line 2.5 TDI 7H0121065P

Product currently unavailable

Audi A3 8P Golf Mk6 Water Hose Radiator Coolant Pipe Line 2.0 TDI 1K0121058BS

-5%

Part no. 1K0121058BS

Audi A3 8P Golf Mk6 Water Hose Radiator Coolant Pipe Line 2.0 TDI 1K0121058BS

Product currently unavailable

Part no. 7L6122291F

VW Volkswagen Touareg Engine Radiator Coolant Hose Pipe Line Diesel 7L6122291F

Product currently unavailable

Part no. 7E0122157BH

VW Volkswagen Transporter T5 Water Hose Coolant Pipe Line 2.0 TDI 7E0122157BH

Product currently unavailable

Part no. 7N0122101G

Volkswagen VW Sharan 7N Water Hose Radiator Coolant Pipe Line 7N0122101G

Product currently unavailable

Part no. 05E122447E

Volkswagen Golf CD1 Water Pipes Hoses Coolant Cooling Line 05E122447E

Product currently unavailable

Part no. 6R0121070J

VW Polo MK5 Seat Ibiza 4 Skoda 1.2 TDI CFWA Coolant Pipes Assembly 6R0121070J

Product currently unavailable

Part no. 1K0122101DF

VW Volkswagen Golf MK5 1.9 TDI Water Hose Radiator Coolant Pipe Line 1K0122101DF

Product currently unavailable

Part no. 7C0805767A

Volkswagen Crafter SY Water Drain Upper Tube Right O/S 7C0805049A

Product currently unavailable

Part no. 03C121151D

Audi A3 8P VW Jetta Mk6 Sharan 7N Water Coolant Pipe Hose 1.4 TSI 03C121151D

Product currently unavailable

Part no. 1K0121447S

Volkswagen VW Passat B6 Water Hose Radiator Coolant Pipe Line 1K0121447S

Product currently unavailable

Part no. 7L6121058AN

Volkswagen Touareg 7L 3.0 TDI Water Hose Cooling Coolant Pipe Line 7L6121058AN

Product currently unavailable

Showing 298-340 of 340 products