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 VW Passat B6 Water Hose Radiator Coolant Pipe Line 1K0121157F

Product currently unavailable

Part no. 5QF122073AF

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

Product currently unavailable

Part no. 7L6121058AN

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

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. 3C0121156BD

VW Volkswagen Passat B6 Golf 1K Water Coolant Pipe Hose Tube Line 3C0121156BD

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. 1K0122157B

Volkswagen Golf Mk5 Water Hose Cooling Coolant Pipe Line 1.6 Petrol 1K0122157B

Product currently unavailable

Part no. 04E121070AJ

Volkswagen Golf Sportsvan 1.5 TSI Water Coolant Pipe Hose Line 04E121070AJ

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. 5Q0121156D

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

Product currently unavailable

Part no. 03L122157R

Volkswagen Golf Mk6 Caddy 1.6 TDI Diesel Water Coolant Pipe Hose 03L122157R

Product currently unavailable

Part no. 1K0122109T

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

Product currently unavailable

Part no. 1K0122051HA

VW Volkswagen Golf 5 6 1.6 2.0 TDI Water Hose Coolant Pipe Line 1K0122051HA

Product currently unavailable

Part no. 03L121131K

VW Transporter T5 2.0 TDI CAAA Sealing Flange Temperature Sender 03L121131K

Product currently unavailable

Part no. 5Q0122157AK-2

Volkswagen Golf Mk7 Water Hose Radiator Coolant Pipe 2.0 TFSI CHHA 5Q0122157AK

Product currently unavailable

Part no. 7H0819308A

Volkswagen Transporter T5 Cooling Water Hose Coolant Pipe 2.5 TDI 7H0819308A

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

Part no. 5K0122157K

Volkswagen New Beetle Water Coolant Cooling Pipe Hose Line 2.0 TDI 5K0122157K

Product currently unavailable

Part no. 5Q0122058Q

Volkswagen Golf 5G Water Hose Cooling Coolant Pipe Line 5Q0122058Q

Product currently unavailable

Part no. 076121064

VW Volkswagen Crafter 2E Water Coolant Pipe Hose Line Diesel Engine 076121064E

Product currently unavailable

Part no. 074121132

Volkswagen LT35 2.5 TDI Diesel Coolant Water Flange Temp Sensor 074121132

Product currently unavailable

Part no. 9068320223

Volkswagen Crafter 2E Engine Coolant Pipe Hose Cooling Line 9068320223

Product currently unavailable

Part no. 5N0122157BP

Volkswagen VW Tiguan 5N Water Pipe Hose Coolant Cooling Line 5N0122157BP

Product currently unavailable

Part no. 1K0121070BJ

Volkswagen Golf Mk6 Water Coolant Pipe Hose Line Tube 1K0121070BJ

Product currently unavailable

Part no. 5Q0121619D-2

Volkswagen Beetle 2.0 TDI Water Hose Coolant Radiator Pipe Line 5Q0121619D

Product currently unavailable

Part no. 5N0121253P

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

Product currently unavailable

Part no. 7N0122101G

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

Product currently unavailable

Part no. 7N0122073AB

VW Volkswagen Sharan 7N Water Pipe Hose Coolant Cooling Line 7N0122073AB

Product currently unavailable

Part no. 04L121051

Volkswagen Audi Seat Skoda Water Coolant Pipe Hose 2.0 TDI 04L121051

Product currently unavailable

Part no. 6R0121070M

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

Product currently unavailable

Part no. 1K0122447DD

VW Volkswagen Eos 1F Water Hose Radiator Coolant Pipe 2.0 Petrol 1K0122447DC

Product currently unavailable

Part no. 03G121151AB

VW Touran Golf V Passat B6 TDI Water Hose Coolant Tube Pipe Line 03G121151AB

Product currently unavailable

Part no. 5N0122051BQ

VW Volkswagen Tiguan 5N Water Coolant Pipe Hose Line Tube 5N0122051BQ

Product currently unavailable

Part no. 5N0122101BF

VW Volkswagen Tiguan Mk1 2.0 TSI Radiator Water Coolant Pipe Hose 5N0122101BF

Product currently unavailable

Part no. 5Q0122101BK

VW Golf Mk7 Audi A3 8V Water Hose Radiator Coolant Pipe Line Diesel 5Q0122101BE

Product currently unavailable

Part no. 1K0122058P

Audi A3 8P VW Golf Mk6 Water Hose Radiator Coolant Pipe Line 2.0 TDI 1K0122058P

Product currently unavailable

Part no. 1K0121086AH

Audi A3 8P VW Golf 5 Seat Leon 1P1 Coolant Hose Pipe Diesel 2.0 TDI 1K0121086AH

Product currently unavailable

Part no. 045121065M

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

Product currently unavailable

Part no. 3Q0121064AC

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

Product currently unavailable

Part no. 1K0121447S

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

Product currently unavailable

Part no. 03L121151L

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

Product currently unavailable

Part no. 3Q0122096E

Volkswagen Golf Mk8 Water Coolant Cooling Pipe Hose Line 2.0 TDI 3Q0122096E

Product currently unavailable

Part no. 5N0121070Q

VW Volkswagen Sharan 7N Water Pipe Hose Coolant Cooling Line 5N0121070Q

Product currently unavailable

Showing 298-341 of 341 products