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 S4 B8 S5 8T 3.0 TFSI CRE Supercharger Coolant Hose Pipe Line 06E121083M

PLN 142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 079121036D

Audi RS4 B8 Engine Cooling Coolant Water Hose Pipe Line 079121036D

PLN 142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5Q0121070AH

Audi A3 8V VW Golf Mk7 Water Coolant Pipe Hose Line Diesel 5Q0121070AH

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8V0121109

Audi A3 RS3 8V 8Y Water Coolant Hose Pipe Hose Line 2.5 TFSI 8V0121109

PLN 46.95

Delivery: Jul 14

If paid before 14:00

Part no. 6C0122101AC

Audi A1 8X Water Coolant Pipe Hose Line Flange 1.4 TFSI 6C0122101AC

PLN 70.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06H121057E

Audi A5 8T Water Hose Cooling Coolant Radiator Pipe Line 06H121057E

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 06J133781BD

Audi TT 8J Water Hose Cooling Radiator Coolant Pipe Line 06J133781BD

PLN 47.95

Delivery: Jul 14

If paid before 14:00

Part no. 5N0122157AM

Audi Q3 8U Water Pipe Hose Coolant Cooling Line 2.0 TDI Diesel 5N0122157AM

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5N0129637D

Audi A3 8P Q3 8U Air Filter Box Water Coolant Drain Pipe Hose Line 5N0129637D

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 059121071CK

Audi Q7 4L 3.0 TDI Diesel Coolant Water Pipe Hose Line 059121071CK

PLN 189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8K1819350BB

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

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 07L121070Q

Audi S8 D3 Quattro 5.2 FSI V10 BSM Coolant Pipe Right Water Line 07L121070Q

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4G0122293CA

Audi A4 B8 A6 C7 2.0 TDI Water Coolant Pipe Hose Line Tube 4G0122293CA

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 5Q0122073BK

Audi Q3 8U Water Coolant Hose Tube Line Pipe 2.0 TDI Diesel 5Q0122073BK

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8R0819374D

Audi Q5 8R Coolant Hose Pipe Water Line Tube 2.0 TDI 8R0819374D

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 07L121071M

Audi S8 D3 Water Cooling Liquid Hose Coolant Pipe Line 07L121071M

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8K0145923F

Audi A4 S4 B8 S5 8T Radiator Coolant Hose Tube Pipe Line 8K0145923F

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 1K0122073B

Audi Seat Skoda Volkswagen Water Return Coolant Pipe Hose Line 1K0122073B

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 1K0122101DK

Audi TT 8J 2.0 TFSI BWA Upper Radiator Coolant Hose Line Pipe Tube 1K0122101DK

PLN 123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5Q0121051B

Audi S3 8V VW Golf Mk7 Water Pipe Hose Engine Coolant Line 1.6 TDI 5Q0121051B

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8K0145922A

Audi S4 B8 Engine Coolant Pipe Hose Line Left N/S Outer 3.0 TFSI 8K0145922A

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 04L121064AE

Volkswagen Seat Skoda Audi 2.0 TDI Water Coolant Pipe Hose Line 04L121064AE

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8K0122101J

Audi A4 B8 A5 8T Heater Water Cooling Coolant Pipe Hose Line 3.0 TFSI 8K0122101G

PLN 123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06D121065L

Audi A4 B7 Water Coolant Pipe Hose Line 2.0 TFSI 06D121065L

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 4F0121081G

Audi A6 C6 Water Hose Coolant Cooling Tube Pipe Line 2.7 Diesel 4F0121081G

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 1K0122051AE

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

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 2Q0122101BP-1

Audi A1 Coolant Cooling Hose Pipe Line 1.0 TFSI Petrol 2Q0122101BP

PLN 165.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06E121065N

Audi Q5 8R 3.0 TFSI Water Hose Cooling Coolant Pipe Line 06E121065N

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4K0121051L

Audi A6 C8 Water Coolant Pipe Hose Line 50 TFSIe 4K0121051L

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 1K0122101CK

Audi Q3 8U Water Hose Cooling Radiator Coolant Pipe Line 1K0122101CK

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8K0819334BC

Audi A4 B8 A5 8T Water Coolant Hose Line Pipe 3.0 TFSI Petrol 8K0819334BC

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8K0121101M

Water Pipe Audi A4 B8 A5 8T Q5 8R 2.0 TFSI Coolant Hose Line 8K0121101M

PLN 75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 059121102C

Audi A4 B8 A5 8T A6 C6 Coolant Hose Line Tube Pipe 3.0 TDI 059121102C

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 5Q0122073R

Audi A3 8V Water Hose Coolant Pipe Line Tube 5Q0122073R

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 03L121132AC

Audi A4 B8 A5 8T 2.0 TDI Water Coolant Thermostat Housing 03L121132AC

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 07K121492H

Audi RS3 8Y Engine Cooling Coolant Return Water Hose Line 2.5 Petrol 07K121497H

PLN 189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8E0121107AG

Audi A4 B7 2.0 TDI Water Hose Vent Coolant Radiator Pipe Line 8E0121107AG

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5N0122447BD

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

PLN 85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8R0121049P

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

PLN 75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4G0122101B

Audi A6 C7 3.0 TDI Diesel Radiator Upper Hose Line Pipe Left N/S 4G0122101B

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8K0819374Q

Audi A5 8T Water Hose Cooling Radiator Coolant Pipe Line 8K0819374Q

PLN 123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 059121465B

Coolant Pipe Audi A6 C7 Q7 4L 3.0 TDI Water Hose Line Tube 059121465B

PLN 47.95

Delivery: Jul 14

If paid before 14:00

Part no. 4G0145920C

Audi A6 C7 3.0 TFSI Water Coolant Pipe Hose Line 4G0145920C

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 6C0122109E

Audi A1 8X 1.6 TDI Diesel Engine Water Coolant Pipe Hose Line Tube 6C0122109E

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 1K0122096J

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

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06D121065J

Audi A4 B7 A6 C6 Coolant Hose Line Tube Pipe 2.0 TFSI 06D121065J

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8K0121049L

Audi A4 B8 Water Hose Radiator Coolant Pipe Line 2.0 TDI 8K0121049L

PLN 46.95

Delivery: Jul 14

If paid before 14:00

Part no. 8V0121124-1

Audi RS3 8V Engine Oil Coolant Hose Pipe 2.5 TFSI 8V0121124

PLN 241.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8J0121447H

Audi TT 8J 2.0 TDI CFGB Engine Coolant Hose Pipe 8J0121447H

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8W0819334G

Audi A4 S4 8W B9 A5 S5 F5 Heater Water Coolant Hose Pipe Line 8W0819334G

PLN 46.95

Delivery: Jul 14

If paid before 14:00

Part no. 6C0122109A

Audi A1 8X 1.4 TFSI Engine Water Coolant Pipe Hose Line Tube 6C0122109A

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8K0145923B

Audi A4 S4 B8 A5 S5 8T Radiator Coolant Hose Tube Pipe Line 3.0 TFSI 8K0145923B

PLN 75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 04L121131AB

Audi A3 8V 2.0 TDI DGCA Coolant Water Flange Housing Hose Line 04L121131AB

PLN 123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4G0819374M

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

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8W0145919K

Audi A5 F5 Water Coolant Hose Line Pipe Tube 8W0145919K

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 079121071BN

Audi A5 S5 8T 4.2 V8 FSI Solid Coolant Pipe Water Hose Line 079121071BN

PLN 75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4K2819347F

Audi A6 C8 Coolant Hose Line Pipe Tube Engine Cooling 4K2819347F

PLN 142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 04L121026R-1

Audi A5 8T 2.0 TDI CNHA Thermostat Housing Pipe Hose Line Tube 04L121026R

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 06E121044D

Audi S4 B8 Engine Coolant Pipe Water Hose Line 3.0 TFSI CAKA 06E121044D

PLN 75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8E0121101C

Audi A4 B7 1.9 TDI Water Pipe Engine Cooling Radiator Coolant Hose 8E0121101C

PLN 46.95

Delivery: Jul 14

If paid before 14:00

Part no. 4H0819334L

Audi A8 D4 3.0 TDI Heater Hose Cooling Coolant Radiator Pipe Line 4H0819334L

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 06K121075AR

Audi Q3 8U VW Beetle Scirocco Mk3 Coolant Pipe Water Cooling Hose 06K121075AR

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06H121497F

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

PLN 142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5N0122101AP

Audi Q3 8U Coolant Hose Tube Line Pipe 5N0122101AP

PLN 237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5Q0122157CL

Audi A3 8V 35 TDI Water Hose Cooling Radiator Coolant Pipe Line 5Q0122157CL

PLN 113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06L121085K

Audi A4 B8 A5 8T Water Coolant Pipe Hose 2.0 TFSI Petrol Engine 06L121085K

PLN 75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 059121449N

Audi A4 B9 A5 F5 A6 C8 3.0 TDI Coolant Water Pipe Hose Tube Line 059121449N

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8K0145921Q

Audi S5 8T 3.0 TFSI Radiator Upper Hose Line Pipe Left N/S 8K0145921Q

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5Q0122157CK

Audi A3 8V Water Hose Cooling Radiator Coolant Pipe Line 2.0 TDI 5Q0122157CK

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 8J0121051P

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

PLN 146.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8W0121400B-1

Audi A4 B9 A5 F5 Engine Oil Coolant Hose Pipe Line Tube 8W0121400B

PLN 113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5N0121070M

Audi A3 8P Water Hose Cooling Radiator Coolant Pipe Line 5N0121070M

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 5Q0122157AB

Coolant Pipe Audi S1 8X S3 8V VW Golf R Mk7 2.0 TSI TFSI Water Hose 5Q0122157AB

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4G0819374R

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

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8W0122291AK

Audi A4 B9 35 TFSI DMSB Petrol Water Coolant Hose Line Tube Pipe 8W0122291AK

PLN 161.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8K0121030K-1

Audi A4 B8 Water Hose Radiator Coolant Pipe Line 1.8 2.0 Petrol 8K0121030K

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 079121071CF-1

AUDI S5 8T Petrol 4.2 FSI V8 Coolant Hose Rear Engine Water Pipe 079121071CF

PLN 80.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8J0121447D

Audi TT 8J 2.0 Petrol Engine Coolant Pipe Hose Line Tube 8J0121447D

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4M0819350F

Audi Q7 4M Q8 Mk2 VW Touareg Mk3 Water Coolant Hose Line Tube Pipe 4M0819350F

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 6R0122157AA

Audi A1 8X Water Pipe Hose Line Cooling Coolant Unit Hose 6R0122157AA

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 04L121026AF

Audi Q2 GA Diesel Thermostat Coolant Regulator Connector Pipe Hose 04L121026AF

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 079121065BR

Audi RS4 B8 RS5 8T Engine Cooling Pipe Water Coolant Hose 4.2 Petrol 079121065BR

PLN 75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06H133514K

Audi A5 8T 2.0 TFSI CDNB Vacuum Solenoid Coolant Line Tube Hose Pipe 06H133514K

PLN 142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06A121065CQ

Audi A3 8P VW Golf Mk5 Coolant Hose Water Pipe Cooling 1.6 Petrol 06A121065CQ

PLN 227.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06M121085H

Audi A4 S4 B9 VW Touareg Water Coolant Pipe Hose Line 06M121085H

PLN 42.95

Delivery: Jul 14

If paid before 14:00

Part no. 4G0122056B

Audi A6 C7 A7 4G Coolant Hose Pipe Line 3.0 TDI CVUA 4G0121448BN

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 059121064N

Audi A6 C8 Q5 FY Q7 4M Water Hose Coolant Pipe Line 3.0 TDI 059121064N

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8W0121400B

Audi A4 B9 Oil Coolant Hose Pipe Line Tube 8W0121400B

PLN 142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7L8121065K

Audi Q7 4L 4.2 TDI Water Coolant Pipe Hose Line 7L8121070G

PLN 94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3C0122101FL

Volkswagen Seat Skoda Audi Water Coolant Pipe Line Hose 2.0 TDI 3C0122101FL

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06F121057C

Audi A1 8X S3 8P VW Golf R Mk5 Water Coolant Pipe Hose Line 2.0 TSI 06F121057C

PLN 56.95

Delivery: Jul 14

If paid before 14:00

Part no. 8E0819376C

Audi RS4 B7 Engine Water Coolant Pipe Hose Line 4.2 V8 BNS 8E0819376C

PLN 284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4H0121485AA

Audi A8 D4 3.0 TDI Diesel Engine Water Coolant Pipe Hose Line 4H0121485AA

PLN 61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 80A819350AP

Audi Q5 FY Water Coolant Pipe Hose Line 2.0 TDI Diesel 80A819350AP

PLN 75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 04L122157CC

Audi A4 B9 2.0 TDI Diesel Engine Coolant Hose Line Pipe Tube 04L122157CC

PLN 123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 079121065BJ

Audi S5 8T Coolant Pipe Cooler Water Hose Left N/S 4.2 Petrol CAUA 079121065BJ

PLN 123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 420121082B

Audi R8 42 Engine Coolant Pipe Water Hose Cooling Line Tube 420121082B

PLN 142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 06J121075F

Audi TT 8J A3 8P Petrol Coolant Hose Diesel Water Pipe Line Tube 06J121075F

PLN 66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 04E122157AC

Audi A4 B9 Turbo Charger Coolant Pipe Hose Line Tube 1.4 TFSI 04E122157CA

PLN 85.95

Free delivery: Jul 14

If paid before 14:00

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