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.
Make
Category
Subcategory
Condition
In Stock
Price
-5%
Part no. 03L121071C
Audi A4 B8 2.0 TDI Water Hose Radiator Coolant Pipe Line 03L121071C
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 5Q0816743D
Audi A3 8V VW Golf Mk7 Air Conditioning Hose A/C Pipe Line 5Q0816743D
€32.95
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4K0145947E
Audi A6 C8 A7 4G Water Coolant Pipe Hose Line 50 TFSIe 4K0145947E
Promo price
€56.95
€48.41
Free delivery: Jun 12 – 17
If paid before 14:00
-2%
Part no. 4G0122449K
Audi A6 C7 A7 4G Water Coolant Pipe Hose Line 3.0 TDI 4G0122449K
Promo price
€23.95
€23.45
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8E0121107AG
Audi A4 B7 2.0 TDI Water Hose Vent Coolant Radiator Pipe Line 8E0121107AG
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 06M121075L
Audi A4 B9 A5 S5 F5 Water Hose Cooling Radiator Coolant Pipe 3.0 TFSI 06M121075L
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 06M121085H
Audi A4 S4 B9 VW Touareg Water Coolant Pipe Hose Line 06M121085H
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 03L121157AH
Audi A5 S5 8F 2.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 03L121157AH
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4K0145050C
Audi A6 C8 Engine Water Coolant Pipe Hose Line 50 TFSIe 4K0145050C
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8R0819332J
Audi Q5 8R 2.0 TDI Engine Water Coolant Pipe Hose Line Diesel 8R0819332J
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 04L121064AE
Volkswagen Seat Skoda Audi 2.0 TDI Water Coolant Pipe Hose Line 04L121064AE
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 1K0122051FE
Audi TT 8J MK2 Water Hose Cooling Coolant Radiator Pipe Line 1K0122051FE
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 6R0121063
Audi A1 8X Water Pipe Hose Line Engine Cooling Coolant Unit Hose 6R0121063
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 04L121065AJ
Volkswagen Seat Skoda Audi 2.0 TDI Water Coolant Pipe Hose Line 04L121065AJ
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8K1819350AT
Audi A5 8F Water Coolant Pipe Hose Line Tube 8K1819350AT
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 06M145963D
Audi A5 S5 F5 Engine Coolant Return Hose Cooling Pipe 3.0 TFSI 06M145963D
€28.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 06A121065AP
Audi A3 8P Coolant Hose Water Pump Pipe Cooling Line 1.6 Petrol 06A121065AP
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 6C0122109A
Audi A1 8X 1.4 TFSI Engine Water Coolant Pipe Hose Line Tube 6C0122109A
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 5Q0121070AH
Audi A3 8V VW Golf Mk7 Water Coolant Pipe Hose Line Diesel 5Q0121070AH
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 03C121070L
Audi A3 8P Water Hose Radiator Coolant Pipe Line Petrol 03C121070L
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 07L121070Q
Audi S8 D3 Quattro 5.2 FSI V10 BSM Coolant Pipe Right Water Line 07L121070Q
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 04L122157BB
Audi A4 B8 A5 8T Water Coolant Pipe Line Hose Tube 2.0 TDI 04L122157BB
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 07L121065J
Coolant Hose Audi S8 A8 D3 A6 C6 5.2 Petrol FSI Left N/S Water Pipe 07L121065J
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 6C0122073B
Cooling Line VW Polo 6C Audi A1 8X 1.6 TDI Water Coolant Pipe Hose 6C0122073B
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 04L122157AQ
Audi A4 B9 A5 F5 Engine Coolant Pipe Hose 2.0 TDI Diesel 04L122157AQ
Promo price
€37.95
€32.26
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 3C0122101EN
Audi A3 8P 2.0 TDI Water Hose Radiator Coolant Pipe Line 3C0122101EN
Promo price
€37.95
€32.26
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 04E122157AC
Audi A4 B9 Turbo Charger Coolant Pipe Hose Line Tube 1.4 TFSI 04E122157CA
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4G0121071N
Audi A7 4G8 3.0 TDI CDUC Diesel Water Coolant Hose Line Tube Pipe 4G0121071N
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 04L121065CR
Water Hose Audi A3 8V Skoda Octavia IV 1.6 TDI Coolant Line Pipe 04L121065CR
Promo price
€47.95
€40.76
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8K0819374D
Audi S4 B8 A5 8T Water Pipe Engine Cooling Coolant Hose Line 3.0 TFSI 8K0819374D
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8K0819374Q
Audi A5 8T Water Hose Cooling Radiator Coolant Pipe Line 8K0819374Q
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4G0121081CS
Audi A6 C7 Expansion Coolant Tank Breather Vent Pipe Line 4G0121081CS
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 04L121070D
Audi A3 8V 2.0 TDI Diesel Water Coolant Hose Pipe Tube Line 04L121070D
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 4H0121088AD
Audi A8 4H Expansion Bottle Tank Radiator Hose Line Tube Pipe 4H0121088AD
€28.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 1K0122101CK
Audi Q3 8U Water Hose Cooling Radiator Coolant Pipe Line 1K0122101CK
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4L0145738B
Audi Q7 4L 3.0 TDI Engine Coolant Water Pipe Hose Line 4L0145738B
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 1K0121109AL
Audi A3 8P Radiator Water Coolant Hose Pipe Line 1.8 FSI Petrol 1K0121109AL
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8K0121101M
Water Pipe Audi A4 B8 A5 8T Q5 8R 2.0 TFSI Coolant Hose Line 8K0121101M
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 5Q0122073AE
Audi Q3 8U Water Coolant Hose Tube Line Pipe 2.0 TDI DFTA Diesel 5Q0122073AE
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 1K0122447HC
Volkswagen Audi Seat Skoda Water Hose Radiator Coolant Pipe Line 1K0122447HC
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 04L122157BA
Audi A5 8T Heater Water Cooling Coolant Pipe Hose Line 04L122157BA
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 5Q0122101BL
Audi A3 8V 2.0 TDI Water Hose Radiator Coolant Pipe Line Diesel 5Q0122101BL
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8W0145924P
Audi A4 B9 Water Hose Cooling Radiator Coolant Pipe Line 8W0145924P
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 06J133781BE
Audi TT 8J Water Hose Cooling Radiator Coolant Pipe Line 06J133781BE
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 06D121065J
Audi A4 B7 A6 C6 Coolant Hose Line Tube Pipe 2.0 TFSI 06D121065J
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 06E121065Q
Audi A4 B8 A6 C7 A7 4G A8 D3 Coolant Flange Pipe Hose Line Tube 06E121065Q
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
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
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 3C0121157AA
Audi A3 8P Engine Water Coolant Pipe Hose Line 1.9 TDI 3C0121157AA
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 2Q0122109E
Audi A1 GB Water Coolant Cooling Pipe Hose Line 1.0 TFSI Petrol 2Q0122109E
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 04L122157BC
Audi A5 8T Heater Water Cooling Coolant Pipe Hose Line 04L122157BC
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 8K0819377C-1
Audi A5 8T Radiator Water Cooling Coolant Pipe Hose Line Diesel 8K0819377C
€28.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 2Q0122101BP-1
Audi A1 Coolant Cooling Hose Pipe Line 1.0 TFSI Petrol 2Q0122101BP
€56.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 2Q0122157B
Audi A1 GB Coolant Cooling Hose Pipe Line 1.0 TSI Petrol 2Q0122157B
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 06E121065N
Audi Q5 8R 3.0 TFSI Water Hose Cooling Coolant Pipe Line 06E121065N
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 2Q0122073H
Audi A1 GB Cooling Coolant Hose Pipe Line 1.0 Petrol Engine 2Q0122073H
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 06M121137AH
Audi A4 B9 A5 F5 Water Coolant Pipe Hose Cooling Line 06M121137AH
€28.95
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 059131425A
Audi Q5 8R Water Cooling Coolant Pipe Line Connector Bracket 059131425A
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 079121102F
Audi S5 8T Engine Water Coolant Rubber Pipe Hose 4.2 FSI 079121102F
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 06L121085K
Audi A4 B8 A5 8T Water Coolant Pipe Hose 2.0 TFSI Petrol Engine 06L121085K
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 04L121131AD
Audi A5 8T Water Coolant Flange Pipe Hose Line 04L121131AD
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 5Q0122157CK
Audi A3 8V Water Hose Cooling Radiator Coolant Pipe Line 2.0 TDI 5Q0122157CK
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8K0121081CM
Audi A4 Avant B8 S5 8T A5 S5 Engine Coolant Hose Tube Pipe Line 8K0121081CM
Promo price
€51.95
€44.16
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 04L122157BE
Audi A5 8T 2.0 TDI CNHA Water Coolant Pipe Tube Line Hose 04L122157BE
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8P0820741A
Audi RS3 8P Refrigerant Hose Cooling Radiator Coolant Pipe Line 8P0820741A
Promo price
€47.95
€40.76
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 06E121065S
Audi A4 B8 A5 S5 8T Water Hose Cooling Coolant Pipe Line 3.0 TFSI 06E121065S
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 079121065BJ
Audi S5 8T Coolant Pipe Cooler Water Hose Left N/S 4.2 Petrol CAUA 079121065BJ
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 1K0121063AA
Audi A3 8P VW Golf Mk6 Seat Altea Engine Coolant Hose 1.4 Petrol 1K0121063AA
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 5N0121064H
Audi Q3 8U Volkswagen Tiguan 5N Coolant Hose Metal Pipe Radiator 5N0121064H
€37.95
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 6R0122157AA
Audi A1 8X Water Pipe Hose Line Cooling Coolant Unit Hose 6R0122157AA
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4G0121447AL
Audi A7 4G Coolant Cooling Water Pipe Hose Line 3.0 TDI 4G0121447AL
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 06H121065D
Audi A5 8T 2.0 TFSI Water Hose Cooling Radiator Coolant Pipe Line 06H121065D
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 420260712B
Audi R8 42 Air Conditioning A/C Pipe Hose Cooling Line Tube 420260712B
Promo price
€66.95
€56.91
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 8K0122055B-1
Audi A4 B8 Water Return Coolant Pipe Hose Line 2.0 TDI Diesel Engine 8K0122055B
€37.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 06A121497Q
Audi TT 8N 1.8T AUM Turbo Coolant Return Feed Pipe Hose Line Tube 06A121497Q
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 06D121111G
Audi A4 B7 Coolant Regulator Thermostat Housing Pipe 2.0 TFSI BWE 06D121111G
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4F0819378F
Audi A6 C6 2.0 TFSI Coolant Water Heater Pipe Hose Line 4F0819378F
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 6R0122101AQ
Audi A1 8X Coolant Cooling Engine Pipe Hose Line Radiator 6R0122101AQ
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 06A121065CQ
Audi A3 8P VW Golf Mk5 Coolant Hose Water Pipe Cooling 1.6 Petrol 06A121065CQ
Promo price
€56.95
€48.41
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 07K121057A
Coolant Hose Audi RS3 8V TTRS 8S 2.5 TFSI Cooling Pipe Line 07K121057A
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 059121398B
Audi A4 B8 A5 8T Q7 4L Coolant Hose Line Pipe Tube 3.0 TDI Diesel 059121398B
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 03C121497F
Audi A1 8X Water Pipe Hose Line Engine Cooling Coolant Unit Hose 03C121497F
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 06E121044D
Audi S4 B8 Engine Coolant Pipe Water Hose Line 3.0 TFSI CAKA 06E121044D
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 04L122157BJ
Audi A5 S5 8T A6 S6 4G Engine Coolant Hose Tube Line Pipe 2.0 TDI 04L122157BJ
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 057121598L
Audi Q7 4L 4.2 TDI Alternator Turbo Coolant Pipe Hose Right O/S 057121598L
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 059122445F
Audi Q7 Q8 4M 3.0 TDI Engine Coolant Hose Line Tube Pipe 059122445F
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 06M121481L
Audi A4 S4 B9 3.0 TFSI Petrol Water Coolant Pipe Hose Line 06M121481L
Promo price
€70.95
€42.57
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 8E0265381
Audi A3 8V 35 TDI Water Coolant Pipe Hose Line 8E0265381
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 059121064D-1
Audi A5 8T Water Hose Cooling Coolant Radiator Pipe Line 3.0 TDI 059121070J
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4G0145919J
Audi A6 C7 A7 S7 4G Water Pipe Hose Engine Cooling Coolant Unit Line 4G0145919J
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 06H133514K
Audi A5 8T 2.0 TFSI CDNB Vacuum Solenoid Coolant Line Tube Hose Pipe 06H133514K
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 06K121132
Audi S3 8V Water Coolant Engine Cooling Flange Pipe Hose Line Petrol 06K121132
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 7L8121070BG
Audi Q7 4L Water Coolant Pipe Hose Line 3.0 TDI 7L8121070BG
Promo price
€47.95
€40.76
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 5Q0122051CT-1
Volkswagen Golf Mk7 GTI Water Coolant Cooling Pipe Hose Line 2.0 TSI 5Q0122051CT
€56.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 04L121157
Audi A4 B8 A6 C7 Water Coolant Pipe Hose Line Tube Right O/S 2.0 TDI 04L121157
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 1K0145832AH
Audi A3 8P 2.0 TDI Convertible Intercooler Air Pipe Hose Left N/S 1K0145832AH
Promo price
€56.95
€34.17
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4G0121485BE
Audi A6 C7 A7 4G8 Water Radiator Coolant Pipe Hose Tube Line Diesel 4G0121485BE
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 059121399K
Audi SQ5 8R 3.0 TDI Diesel Coolant Hose Line Tube Pipe 059121399K
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 03G121071A
Audi A4 B7 2.0 TDI Water Hose Radiator Coolant Pipe Line 03G121071A
Promo price
€37.95
€32.26
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 1K0122073GF
Audi A3 8P Water Hose Cooling Coolant Radiator Pipe Line 1K0122073GF
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
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 .