Cooling system hoses and lines
More informationAt 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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Part no. 8W0145670G
Audi A4 B9 A5 F5 Water Coolant Hose Pipe Line 2.0 TDI 8W0145930H 8W0145670G
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Part no. 04L121058AA
Audi TT FV A5 F5 Water Hose Cooling Coolant Pipe Line 2.0 TDI Diesel 04L121058AA
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Part no. 079121481G
Cooling Hose Audi S4 B7 4.2 V8 Petrol Coolant Pipe Line 079121481G
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Part no. 5Q0122109J
Audi S3 8V VW Volkswagen Golf 7 Water Coolant Pipe Hose Line Tube 5Q0122109J
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Part no. 06B121065
Audi A4 B7 1.8 T BFB Petrol Engine Coolant Return Pipe Hose Line 06B121065
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Part no. 03L122157M
Audi A4 B8 2.0 TDI Water Hose Radiator Coolant Pipe Line 03L122157M
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Part no. 04L122073B
Audi A3 8V 2.0 TDI Diesel Water Pipe Engine Cooling Coolant Hose Line 04L122073B
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Part no. 06E121045Q
Audi A4 S4 B8 3.0 TFSI Water Hose Radiator Coolant Pipe Line Tube 06E121045Q
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Part no. 8E0265381
Audi A3 8V 35 TDI Water Coolant Pipe Hose Line 8E0265381
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Part no. 03L121065
Audi A3 8P 2.0 TDI Water Coolant Pipe Hose Tube 03L121065
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Part no. 06H121085C
Audi A4 B8 1.8 TFSI Water Hose Cooling Radiator Coolant Pipe Line 06H121085C
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Part no. 06F121492L-1
Audi TT 8J 2.0 TFSI Turbo Coolant Return Pipe Hose Line 06F121492L
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Part no. 6C0122051AE
Audi A1 8X 1.4 TFSI CZCA Coolant Hose Line Tube Pipe 6C0122051AE
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Part no. 059121065DT
Audi SQ5 8R 3.0 TDI CGQB Radiator Water Hose Line Tube Pipe 059121065DT
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Part no. 5Q0121070AB
Audi VW Seat Petrol Coolant Hose Water Pump Pipe Cooling Line 5Q0121070AB
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Part no. 079121081
Audi S7 4G 4.0 TFSI Coolant Hose Engine Water Pipe Front Upper 079121081
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Part no. 8K0121055B
Water Hose Cooling Audi A4 S4 8B A5 S5 8T Radiator Coolant Pipe Line 8K0121055B
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Part no. 8R0819332N
Audi Q5 8R 2.0 TDI Engine Water Coolant Pipe Hose Line Diesel 8R0819332N
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Part no. 7L8121073H
Audi Q7 4L 3.0 TDI Water Coolant Pipe Hose Line 7L8121073H
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Part no. 06K121065Q
Audi TT FV Water Coolant Pipe Hose Line 06K121065Q
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Part no. 03G121065R
Audi A4 B7 2.0 TDI BRE Water Coolant Pipe Hose Line 03G121071A
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Part no. 03G121071A
Audi A4 B7 2.0 TDI Water Hose Radiator Coolant Pipe Line 03G121071A
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Part no. 059121075BT
Audi Q7 4L 3.0 TDI BUG Diesel Engine Water Coolant Hoses Line Pipe 059121075BT
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Part no. 4G0122101G
Audi A6 C7 2.0 TDI CGLC Water Coolant Hose Line Tube Pipe 4G0122101G
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Part no. 4G0121049L
Audi A7 4G 3.0 TDI CDUD Water Radiator Coolant Pipe Hose Tube Line 4G0121049L
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Part no. 07L121071M
Audi S8 D3 Water Cooling Liquid Hose Coolant Pipe Line 07L121071M
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Part no. 3C0121157CC
Audi A3 8P 2.0 TDI Diesel Water Hose Cooling Coolant Pipe Line 3C0121157CC
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Part no. 059121465A
Audi A7 4G 3.0 TDI Quattro Water Hose Cooling Radiator Pipe Line 059121465A
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Part no. 059121670G
Audi A7 4G8 Cooling Hose Coolant Pipe Line 059121086BG
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Part no. 4G0122055H
Audi A7 4G8 3.0 TDI CRTE Radiator Coolant Water Pipe Hose Line Tube 4G0122055H
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Part no. 5N0121070M
Audi A3 8P Water Hose Cooling Radiator Coolant Pipe Line 5N0121070M
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Part no. 06M121481L
Audi A4 S4 B9 3.0 TFSI Petrol Water Coolant Pipe Hose Line 06M121481L
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Part no. 04E103474G
Audi A3 8V Tank Crankcase Breather Vent Pipe Line 04E103474G
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Part no. 8R0121081C
Audi Q5 8R 3.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 8R0121081C
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Part no. RHD-8W2122109E
Water Cooling Hose Audi A4 B9 A5 F5 Radiator Coolant Pipe Line 8W2122109E
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Part no. 5Q0122157CL
Audi A3 8V 35 TDI Water Hose Cooling Radiator Coolant Pipe Line 5Q0122157CL
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Part no. 5N0121064J
Coolant Hose Audi Q3 8U Volkswagen Tiguan 5N Metal Pipe Radiator 5N0121064J
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Part no. 7L6122109D
Audi Q7 4L TFSI Water Hose Cooling Coolant Radiator Pipe Line 7L6122109D
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Part no. 4F0121101G
Audi A6 C6 Water Hose Cooling Radiator Coolant Pipe Line 4F0121101G
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Part no. 06L121081K
Audi Q5 FY 2.0 TFSI Water Cooling Line Vacuum Breather Pipe Hose 06L121081K
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Part no. 7L6122051T
Audi Q7 4L 3.0 TDI BUG Water Coolant Hose Pipe Line Tube 7L6122051T
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Part no. 8E0145738D
Audi A4 B7 3.0 TDI BKN Turbo Intercooler Pipe Hose Line Tube 8E0145738D
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Part no. 4H0121081AB
Audi A8L 4H Expansion Bottle Tank Radiator Hose Line Tube Pipe 4H0121081AB
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Part no. 80A819370B
Audi Q5 FY 2.0 TFSI Engine Water Coolant Pipe Hose Line 80A819370B
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Part no. 06D121133A
Audi A4 B7 Water Coolant Engine Cooling Flange Pipe Hose Line 06D121133A
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Part no. 5Q0121049AD
Volkswagen Audi A3 8V Seat Petrol Water Coolant Pipe Hose Line 5Q0121049AD
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Part no. 8J0121051Q
Audi TT Mk2 8J 2.0 TDI Engine Water Coolant Pipe Hose Line 8J0121051Q
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Part no. 8W0122073L
Audi A4 B9 Water Hose Cooling Coolant Radiator Pipe Line 8W0122073L
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Part no. 8W0122101BH
Audi A4 B9 Water Hose Cooling Coolant Radiator Pipe Line 8W0122101BH
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Part no. 04L121065CR
Water Hose Audi A3 8V Skoda Octavia IV 1.6 TDI Coolant Line Pipe 04L121065CR
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Part no. 80A122073C
Audi Q5 FY Coolant Water Hose Line Tube Pipe 80A122073C
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Part no. 059121086AH
AUDI Q7 4L Quattro Diesel CRCA 3.0 TDI Coolant Hose Water Line 059121086AH
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Part no. 4G0121071N
Audi A7 4G8 3.0 TDI CDUC Diesel Water Coolant Hose Line Tube Pipe 4G0121071N
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Part no. 5WA122051R
Audi A3 8Y Coolant Water Hose Line Tube Pipe 5WA122051R
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Part no. 8R0121071H
Audi Q5 8R Coolant Water Hose Line Tube Pipe 8R0121071H
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Part no. 04L121064T
Audi A3 8V Engine Coolant Pipe Hose Line 04L121064T
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Part no. 8K0121081F
Audi A5 8T 3.0 TDI CCWA Diesel Coolant Hose Line Pipe Tube 8K0121081F 059121399E
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Part no. 6C0122051F
Audi A1 8X 1.6 TDI Diesel Water Coolant Pipes Hoses Cooling Line 6C0122051F
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Part no. 059121163F
Audi A5 8T Engine Water Coolant Pipe Cooling Hose Line 059121163F
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Part no. 1K0121086T
Audi A3 8P 1.9 TDI Diesel Coolant System Rubber Hose Pipe Line 1K0121086T
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Part no. 1K0122447ED-1
Audi A3 8P 1.9 TDI BLS Diesel Coolant Water Hose Line Tube Pipe 1K0122447ED
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Part no. 1K0121086AC
Coolant Hose Audi A3 8P VW Golf 5 Seat Leon 2 Diesel 2.0 Tdi BMN 1K0121086AC
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Part no. 5Q0122051BJ
Audi A3 8V 1.6 TDI CRKB Water Coolant Pipe Hose Line Tube 5Q0122051BJ
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Part no. 5Q0122101BE
Audi A3 8V Water Hose Radiator Coolant Pipe Line Diesel 5Q0122101BE
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Part no. 8K0819337A
Audi A4 B7 2.0 TDI BRE Diesel Water Coolant Pipe Hose Line Tube 8K0819337A
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Part no. 8R0121036A
Audi Q5 8R Heater Water Cooling Coolant Pipe Hose Line 8R0121036A
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Part no. 04L122157BQ
Audi A5 8T 2.0 TDI CNHA Water Coolant Pipe Line Hose Tube 04L122157BQ
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Part no. 04L121131AD
Audi A5 8T Water Coolant Flange Pipe Hose Line 04L121131AD
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Part no. 8K0819345H
Audi A4 B8 Coolant Cooling Engine Pipe Hose Line Radiator 8K0819345H
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Part no. 3C0122101FS
Volkswagen SEAT Skoda Audi Water Coolant Pipe Line Hose 3C0122101FS
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Part no. 6R0122101CA
Audi A1 8X Coolant Hose Water Pump Pipe Cooling Line 1.4 Petrol 6R0122101CA
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Part no. 6R0122447K
Audi A1 8X Water Pipe Hose Line Engine Cooling Hose 6R0122447K 6R0122447AM
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Part no. 6R0121070L
Audi A1 8X 1.4 TSI Petrol Engine Water Hose Coolant Pipe Line 6R0121070L
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Part no. 8K0121109K
Audi A5 8T Water Hose Cooling Coolant Radiator Pipe Line 8K0121109K
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Part no. 06A121065BQ
Audi S3 TT 8N 1.8T Water Pipe Coolant Supply Metal Hose 06A121065BQ
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Part no. 4F0819373AF
Audi A6 C6 Coolant Water Heater Pipe Hose Line 4F2819371AC 4F0819373AF
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Part no. 4F0121251AE
Audi A6 C6 FL Water Hose Radiator Coolant Cooling 4F0121251AE
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Part no. 4F0121101
Audi A6 C6 FL Coolant Water Quick Connect Heater Pipe Hose 4F0121101
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Part no. 1K0122073GF
Audi A3 8P Water Hose Cooling Coolant Radiator Pipe Line 1K0122073GF
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Part no. 1K0122447FR
Volkswagen Audi Seat Skoda Water Hose Radiator Coolant Pipe Line 1K0122447FR
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Part no. 03G121157G
Audi A4 B7 2.0 TDI Water Hose Radiator Coolant Pipe Line 03G121157G
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Part no. 1K0121096AB
VW Golf MK5 Audi Seat Skoda 1.9 TDI Water Hose Coolant Pipe Line 1K0121096AB
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Part no. 1K0122101FP
Audi A3 8P 1.6 TDI Water Hose Radiator Coolant Pipe Line 1K0122101FP
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Part no. 3C0122101EN
Audi A3 8P 2.0 TDI Water Hose Radiator Coolant Pipe Line 3C0122101EN
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Part no. 3C0122101EM
Audi A3 8P 2.0 TDI Water Hose Radiator Coolant Pipe Line 3C0122101EM
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Part no. 1K0122291BM
Audi A3 8P 2.0 TDI Water Hose Radiator Coolant Pipe Line 1K0122291BM
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Part no. 8E2819373
Audi A4 B7 1.9 TDI Water Pipe Engine Cooling Radiator Coolant Hose 8E2819373
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Part no. 8E0121055N
Audi A4 B7 1.9 TDI Water Pipe Engine Cooling Radiator Coolant Hose 8E0121055N
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Part no. 8K0819374
Audi A4 B8 2.0 TDI Diesel Water Pipe Engine Cooling Coolant Hose Line 8K0819374
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Part no. 8E0121101AA
Audi A4 B7 2.0 TDI Water Hose Cooling Coolant Radiator Pipe Line 8E0121101AA
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Part no. 1K0122157D
Audi A4 B7 2.0 TDI Diesel Water Hose Cooling Coolant Pipe Line 1K0122157D
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Part no. 1K0121096R
Audi A4 B7 2.0 TDI Diesel Water Hose Cooling Coolant Pipe Line 1K0121096R
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Part no. 1K0122073S
Audi A4 B7 Water Hose Cooling Coolant Radiator Pipe Line 1K0122073S
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Part no. 1K0122109
Audi A3 8P Water Hose Cooling Coolant Pipe Line 1K0122109
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Part no. 8E0121049N
Audi A4 B7 Water Hose Cooling Radiator Coolant Pipe Line 8E0121049N
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Flexible and rigid cooling hoses – durability and fit for popular models
Rubber and silicone hoses for cooling systems – temperature and pressure resistance
Cooling system hoses and lines are key components that enable coolant circulation between the radiator, water pump, thermostat, and engine. Their efficiency and tightness are essential for proper cooling system operation and preventing engine overheating. At Global Parts, you'll find a wide selection of used car parts., including cooling system hoses and pipes, ideal for BMW , Audi , Mercedes , Volkswagen , Mini and others .
What is the difference between flexible and rigid cooling system hoses?
Flexible cooling hoses made of EPDM rubber or silicone help compensate for engine vibrations and pressure changes. Rigid hoses (e.g., aluminum or PA12 plastic) are used where dimensional stability and resistance to high temperatures—up to 150–180°C —are required. Modern vehicles often use a combination of both types, ensuring optimal coolant flow and longer system life.
What are the functions of cooling system hoses and pipes ?
Cooling system hoses and lines play a key role in regulating engine operating temperature: Coolant Transport – Hoses and lines connect key components of the cooling system, allowing coolant to flow throughout the system. Overheating Prevention – By circulating the coolant, they maintain the proper operating temperature of the engine, preventing it from overheating. Adequate flexibility and tightness – The materials from which the lines and hoses are made ensure their resistance to high temperatures, pressure and the effects of coolant. Efficient cooling system hoses and lines are essential for the efficient operation of the entire cooling system.
Construction and technical parameters of cooling pipes
A typical cooling system hose consists of several layers: a protective outer layer, a reinforcing layer (reinforced with synthetic fiber), and an inner layer that is chemically resistant to coolants. The operating pressure of such hoses is typically 1–2 bar, and their peak strength can reach up to 5 bar . The use of appropriate materials prevents hose cracking during rapid temperature changes, especially in cars with turbocharged engines. Cooling system hoses, commonly known as radiator hoses, can be made of various materials – most commonly EPDM rubber or silicone, which can withstand temperatures from -40°C to as much as +150°C. High-performance vehicles, such as the BMW M series or Audi S-Line, use silicone hoses with a reinforced textile construction, ensuring longer life and resistance to operating pressures above 2 bar. Flexible hoses compensate for engine vibrations, while rigid sections (e.g., aluminum) ensure stability at high fluid flow rates.
Why is it worth taking care of cooling system hoses and pipes ?
Damaged or worn cooling system hoses and lines can lead to serious cooling system problems. Common symptoms include: Coolant Leak – Leaks in lines or hoses can lead to leaks and a drop in coolant level. Engine Overheating – Restricted coolant flow due to damaged hoses can lead to engine overheating. Noises and vibrations – Improper mounting or damaged hoses can cause vibrations and noises during system operation. At Global Parts, we offer original used cooling system hoses and lines that have undergone detailed quality tests, ensuring their durability and tightness.
Symptoms of damage and compatibility of cooling hoses - table
| Fault symptom | Possible cause | Recommended action |
|---|---|---|
| Coolant level drop | Microleak in the pipe | Cooling system hose replacement |
| Engine overheating | Clogged hose or kink | Checking for patency, replacement |
| Vibration or gurgling | Loose cable connections | Tightening the clamps, checking the handles |
| Low engine operating temperature | Too much flow – no resistance | Thermostat operation check |
How to choose the right cooling system hoses and pipes ?
When selecting cooling system hoses and lines, there are several key aspects to consider: Vehicle-specific fit – Every cooling system has its own specific technical requirements. At Global Parts, you'll find cooling system hoses and lines perfectly suited to BMW , Audi , Mercedes , Volkswagen , Mini , and more. Technical Condition – Make sure that the lines and hoses are free from cracks, bulges and other damage. Material resistance – Choose hoses and lines made of materials that are resistant to high temperatures and operating fluids.
Parts selection procedure
To select the correct cooling system hose, it's best to use the vehicle's VIN or the OEM part number. The Global Parts system automatically searches by engine code or part number, minimizing the risk of incorrect matching. This ensures that the hoses are fully compatible with the water pump, radiator, and thermostat, ensuring the entire system maintains its factory seal.
Why choose used cooling system hoses and pipes ?
Used car parts , such as cooling system hoses and lines, are a practical solution that allows you to save money while maintaining high quality. By choosing used cooling system hoses and lines, you gain: Lower costs – Used components are much cheaper than new ones, but offer equally high quality. Ecology – Recycling car parts supports environmental protection and reduces waste. A wide range – In our store you will find cooling system hoses and pipes for the most popular car brands.
How to take care of cooling system hoses and pipes ?
To ensure that cooling system hoses and lines function reliably for a long time, it is important to follow a few rules: Regularly check the condition of lines and hoses to prevent coolant leaks. Monitor the coolant level – a sudden drop may indicate a leak in the lines. Replace damaged or worn components in time to avoid more serious cooling system problems. If you need a replacement, you'll find the right used car parts at Global Parts that will restore full efficiency to your cooling system.
FAQ - Frequently asked questions about cooling system hoses and lines
| Question | Answer |
|---|---|
| What is the purpose of the cooling system hose? | It is a flexible or rigid element connecting the components of the cooling system, which allows coolant to flow between the engine, radiator and water pump. |
| What is the difference between a silicone hose and a rubber hose? | Silicone hoses are more resistant to high temperatures (up to 200°C), making them ideal for sports or tuning applications. Rubber hoses are standard on most passenger cars and offer good flexibility. |
| How do you know if your cooling hose needs replacing? | Symptoms include leaks, cracks, flattening, or soft material. It's also worth looking for signs of corrosion at the joints. |
| Are the cooling system hoses universal? | No. Each car model has hoses with specific diameters, lengths, and bend angles – so compatibility with a specific engine or OEM designation is important. |
| Do cooling system hoses affect engine performance? | Yes, indirectly. An efficient cooling system maintains optimal operating temperatures, which translates into stable power and lower fuel consumption. |
| How often should you replace your cooling system hoses? | It is recommended to inspect it every 40,000–60,000 km and replace it approximately every 5 years, especially if there are visible signs of wear. |
| Where to buy cooling system hoses in good condition? | It is best to buy from a trusted store like Global Parts, where each part undergoes quality control and is described in terms of its fit for specific vehicle models. |
Summary: Cooling System Hoses and Pipes at Global Parts Automotive Store
Cooling system hoses and lines are key components that ensure efficient coolant flow and maintain optimal engine operating temperatures. By maintaining their technical condition, you can avoid costly repairs and extend the engine's lifespan. The Global Parts automotive store invites you to browse our extensive selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , and more, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .