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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In Stock
Price
Part no. 7806706
BMW E60 E61 E65 Diesel M57N2 Radiator Coolant Return Pipe Water Hose 7806706
PLN 123.95
Free delivery: Jul 02
If paid before 14:00
Part no. 7787458
BMW 5 6 Series E60 E61 E63 M57N Diesel Cooling Radiator Hose Water Pipe 7787458
PLN 46.95
Delivery: Jul 02
If paid before 14:00
-15%
Part no. 8514456
BMW F10 F20 F22 F30 F32 B47 Cylinder Head Coolant Hose Pipe Line 8514456
Promo price
PLN 66.95
PLN 56.91
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. A6512000182
Water Hose Mercedes W176 W246 Diesel OM651 Cooling Coolant Pipe A6512000182
Promo price
PLN 47.95
PLN 40.76
Delivery: Jul 02
If paid before 14:00
Part no. A2712002452
Water Pipe Mercedes W204 M271 Engine Cooling Coolant Feed Hose A2712002452
PLN 75.95
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. A2465010182
Water Pipe Mercedes C117 W176 W246 M270 Radiator Coolant Hose Line A2465010182
Promo price
PLN 75.95
PLN 72.15
Free delivery: Jul 02
If paid before 14:00
Part no. 8616548
BMW F20 F21 F30 LCI Hose Engine Feed Radiator Top Pipe 8616548
PLN 265.95
Free delivery: Jul 02
If paid before 14:00
Part no. 2248058
BMW X5 Series E53 3.0d M57 Water Hose Pipe Engine Cooling 2248058
PLN 47.95
Delivery: Jul 02
If paid before 14:00
-15%
Part no. 8616555
BMW F20 F21 F30 LCI M140i 340i B58 Hose Pipe Cylinder Head 8616555
Promo price
PLN 61.95
PLN 52.66
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 8620944
BMW F20 F21 F30 LCI Engine Cooling Radiator Expansion Tank Hose 8620944
Promo price
PLN 94.95
PLN 90.20
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 7617365
Mini F56 F57 F60 Engine Cooling Radiator Coolant Water Hose Pipe Line 7617365
Promo price
PLN 94.95
PLN 90.20
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 04L121065AK
Audi A5 8T Heater Water Cooling Coolant Pipe Hose Line 04L121065AK
Promo price
PLN 42.95
PLN 40.80
Delivery: Jul 02
If paid before 14:00
-15%
Part no. 7617380
Mini F55 F56 Cooper S Water Hose Coolant Pump Cooling Pipe Hose 7617380
Promo price
PLN 61.95
PLN 52.66
Free delivery: Jul 02
If paid before 14:00
Part no. 8677245
BMW F20 LCI F30 F32 Petrol B48 Water Radiator Cooler Pipe Hose 8677245
PLN 113.95
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. A6511400675-1
Mercedes W639 W906 OM651 Diesel EGR Exhaust Cooler Heat Exchanger A6511400275
Promo price
PLN 123.95
PLN 105.36
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 1481934
Mercedes Sprinter W906 Diesel OM651 Water Hose Cooling Coolant Pipe 1481934
Promo price
PLN 61.95
PLN 58.85
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. A2465010482
Mercedes W176 W246 OM651 Water Hose Engine Radiator Coolant Pipe A2465010482
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
-5%
Part no. 7596837
BMW F20 F21 F30 F31 F32 Petrol Radiator Coolant Hose Pipe 7596837
Promo price
PLN 61.95
PLN 58.85
Free delivery: Jul 02
If paid before 14:00
-40%
Part no. A2465011358
Water Hose Mercedes W176 W246 OM651 Cooling Coolant Pipe Line A2465011358
Promo price
PLN 237.95
PLN 142.77
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 7588936
Cooling Line Hose BMW F10 F11 F30 F31 N20 Engine Coolant Return Pipe 7588936
Promo price
PLN 47.95
PLN 45.55
Delivery: Jul 02
If paid before 14:00
-15%
Part no. 7617366
Mini Cooper F55 F56 F57 Cooling Radiator Expansion Tank Coolant Hose Pipe
Promo price
PLN 85.95
PLN 73.06
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 2751611
Mini Cooper R55 R56 R57 Engine Coolant Pipe Hose Return Line 2751611
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
Part no. 7800098
BMW E90 E91 LCI E92 N57 Hose Engine Feed Radiator Top Pipe 7800098
PLN 94.95
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. A2045013182
Water Pipe Mercedes W204 OM642 Engine Cooling Radiator Coolant Hose A2045013182
Promo price
PLN 47.95
PLN 45.55
Delivery: Jul 02
If paid before 14:00
-15%
Part no. 7598234
Coolant Hose BMW F20 F22 F30 N55 Engine Cooling Cylinder Head Pipe Line 7598234
Promo price
PLN 56.95
PLN 48.41
Delivery: Jul 02
If paid before 14:00
-5%
Part no. A6512001051
Water Pipe Mercedes W205 C253 OM651 Engine Cooling Coolant Hose A6512001051
Promo price
PLN 104.95
PLN 99.70
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. A1645060435
Mercedes W164 OM642 Diesel Engine Water Coolant Elbow Hose A1645060435
Promo price
PLN 66.95
PLN 56.91
Free delivery: Jul 02
If paid before 14:00
Part no. A2035015782
Mercedes-Benz C-Class W203 Kompressor Radiator Top Hose Pipe Petrol A2035015782
PLN 42.95
Delivery: Jul 02
If paid before 14:00
-5%
Part no. 8381224
Hose Pipe BMW X5 E53 3.0d M57N Engine Inlet Heater Coolant Auxiliary 8381224
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
-5%
Part no. A1645011182
Mercedes-Benz M ML W164 Engine Radiator Coolant Hose Pipe Bottom A1645011182
Promo price
PLN 61.95
PLN 58.85
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. A2465010382
Mercedes W176 W246 OM651 Radiator Water Coolant Hose Engine Cooling A2465010382
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
-15%
Part no. 8645546
Mini Cooper S F55 F56 Petrol Engine Water Pump Cooling Coolant Pipe Hose 8645546
Promo price
PLN 56.95
PLN 48.41
Delivery: Jul 02
If paid before 14:00
-9%
Part no. A6462030482
EGR Cooler Hose Mercedes W203 W211 OM646 Heat Exchange Coolant Line A6462030482
Promo price
PLN 46.95
PLN 42.95
Delivery: Jul 02
If paid before 14:00
-5%
Part no. 7505949
BMW X5 Series E53 Inlet Heater Radiator Water Hose 7505949
Promo price
PLN 47.95
PLN 45.55
Delivery: Jul 02
If paid before 14:00
-5%
Part no. 5Q0121070AF
Audi A3 8V Water Hose Cooling Coolant Radiator Pipe Line 5Q0121070AF
Promo price
PLN 61.95
PLN 58.85
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. 7604542
BMW F87 M2 F20 F30 Coolant Hose Pipe Line Tube Radiator N55 7604542
Promo price
PLN 113.95
PLN 96.86
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 03L122157Q
Audi A4 B8 A5 8T Coolant Pipe Water Cooling Line 2.0 TDI 03L122157Q
Promo price
PLN 47.95
PLN 45.55
Delivery: Jul 02
If paid before 14:00
-40%
Part no. A6420700033 / A6420701433 / A6420700800
Mercedes-Benz ML W164 OM642 Fuel Injection Line Pressure Pipe Rail Injector Set
Promo price
PLN 151.95
PLN 91.17
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. A6400101282
Mercedes W168 W169 Engine Water Coolant Breather Pipe Hose A6400101282
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
Part no. A2702000700
Mercedes C118 W176 M260 M270 Engine Water Coolant Pipe Hose Line A2702000700
PLN 142.95
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. 6760516
BMW 7 Series E65 E66 N57N2 730d Radiator Return Line Hose Pipe 6760516
Promo price
PLN 46.95
PLN 39.91
Delivery: Jul 02
If paid before 14:00
-5%
Part no. A2468303096
Water Hose Mercedes W176 W246 M270 Coolant Cooling Pipe Line A2468303096
Promo price
PLN 66.95
PLN 63.60
Free delivery: Jul 02
If paid before 14:00
Part no. A2712002452-1
Water Pump Pipe Mercedes W204 M271 Engine Cooling Coolant Feed Hose A2712002452
PLN 75.95
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. A2702000851
Water Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line A2702000851
Promo price
PLN 142.95
PLN 121.51
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. A2125010024
Water Pipe Mercedes W204 W212 OM651 Engine Cooling Coolant Hose Line A2125010024
Promo price
PLN 208.95
PLN 177.61
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 06F121133G
VW Volkswagen Golf 5 2.0 TSI BWA Petrol Engine Coolant Flange Hose 06F121133G
Promo price
PLN 42.95
PLN 40.80
Delivery: Jul 02
If paid before 14:00
-40%
Part no. 06E121083G
Audi S4 B8 S5 8T Water Hose Coolant Pipe Line Tube 3.0 TFSI 06E121083G
Promo price
PLN 142.95
PLN 85.77
Free delivery: Jul 02
If paid before 14:00
Part no. A2045011025
Mercedes W204 Vent Pipe Diesel Cooling Line Expansion Tank Hose A2045011025
PLN 61.95
Free delivery: Jul 02
If paid before 14:00
Part no. 8587514
BMW F20 F21 LCI 116d B37 Radiator Coolant Expansion Tank Hose Pipe Line 8587514
PLN 42.95
Delivery: Jul 02
If paid before 14:00
-15%
Part no. 3445893
BMW X3 Series E83 LCI 1.8d 2.0d N47 Radiator Water Pipe Coolant Hose 3445893
Promo price
PLN 142.95
PLN 121.51
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. A2048301096
Water Pipe Mercedes W204 C207 W212 OM642 Cooling Coolant Hose Line A2048301096
Promo price
PLN 94.95
PLN 90.20
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. A2475010258
Water Hose Mercedes C118 W177 W247 Engine Coolant Pipe Line A2475010258
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
-5%
Part no. 8K0121164E
Audi A4 B8 Water Pipe Hose Line Engine Cooling Coolant Unit Hose 8K0121164E
Promo price
PLN 42.95
PLN 40.80
Delivery: Jul 02
If paid before 14:00
-15%
Part no. A6510101782
Vent Hose Mercedes Vito W447 Diesel OM651 Engine Breather Line A6510101782
Promo price
PLN 75.95
PLN 64.56
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 5Q0122101BE
Audi A3 8V Water Hose Radiator Coolant Pipe Line Diesel 5Q0122101BE
Promo price
PLN 61.95
PLN 58.85
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 8514437
Water Hose BMW F20 F30 F31 F10 F11 LCI B47 EGR Cooler Coolant Pipe Line 8514437
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
-5%
Part no. 03L121157Q
Audi Q3 SE Water Hose Cooling Coolant Radiator Pipe Line Hose 03L121157Q
Promo price
PLN 61.95
PLN 58.85
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. 8571619-1
BMW X3 F25 N47N Radiator Coolant Hose Pipe Line Diesel 8571619
Promo price
PLN 94.95
PLN 80.71
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 5Q0122157AK
Volkswagen Golf 5G 2.0 TFSI CHHA Water Hose Radiator Coolant Pipe 5Q0122157AK
Promo price
PLN 61.95
PLN 58.85
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. 7617377
Mini F56 Heat Exchanger Hose Turbocharger Coolant Line F54 F55 7617377
Promo price
PLN 142.95
PLN 121.51
Free delivery: Jul 02
If paid before 14:00
Part no. 7518503-1
Mini Cooper S R52 R53 1 Engine Cooling Coolant Line Pipe Hose 7518503
PLN 142.95
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 7789403
BMW X5 Series E53 3.0d M57N Engine Water Pipe Engine Coolant Hose 7789403
Promo price
PLN 93.95
PLN 89.25
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. A6511400700-1
Mercedes W204 W212 OM651 Diesel EGR Valve With EGR Exhaust Cooler A6511400775
Promo price
PLN 189.95
PLN 161.46
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. A2742000115
Coolant Hose Mercedes W204 C207 W212 M274 Thermostat Line Pipe A2742000115
Promo price
PLN 142.95
PLN 121.51
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 4133404
BMW 1 3 Series E81 E82 E84 E87 E93N Engine radiator return cooling hose 4133404
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
-5%
Part no. 8514244
Coolant Hose BMW F10 F11 520d N47N Radiator Water Cooling Pipe Line 8514244
Promo price
PLN 66.95
PLN 63.60
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 7639997
BMW F20 F30 F32 N20 Engine Coolant Radiator Water Feed Hose Pipe Petrol 7639997
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
-5%
Part no. 04L121071H
Audi A6 C7 Q5 8R Water Coolant Hose Pipe Tube Line 2.0 TDI DDDA 04L121071H
Promo price
PLN 47.95
PLN 45.55
Delivery: Jul 02
If paid before 14:00
Part no. 7535900
Mini Cooper R50 R52 Radiator Cooling System Coolant Hose 7535900
PLN 142.95
Free delivery: Jul 02
If paid before 14:00
Part no. 6C1118K582DB
Ford Transit Mk7 Water Hose Coolant Line 2.2 TDCi 6C1118K582DB
PLN 61.95
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. A2538308801
Heater Coolant Hose Mercedes C253 W213 Water Pump Heater Line A2538308801
Promo price
PLN 123.95
PLN 105.36
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 8K0121081P
Audi A4 B8 2.0 TDI CAGA Radiator Water Coolant Pipe Hose Tube Line 8K0121081P
Promo price
PLN 42.95
PLN 40.80
Delivery: Jul 02
If paid before 14:00
-15%
Part no. 8584143
Water Hose BMW F20 F30 F31 F10 F11 LCI B47 Coolant Water Pump Pipe Line 8584143
Promo price
PLN 123.95
PLN 105.36
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. A2465010282
Water Pipe Mercedes C117 W176 W246 M270 Radiator Coolant Hose Line A2465010282
Promo price
PLN 123.95
PLN 105.36
Free delivery: Jul 02
If paid before 14:00
-19%
Part no. 7788266
BMW X5 Series E53 3.0d M57N Cooling System Coolant Radiator Water Hose 7788266
Promo price
PLN 46.95
PLN 37.95
Delivery: Jul 02
If paid before 14:00
-5%
Part no. A2038305296
Water Hose Mercedes W203 W209 M272 Petrol Cooling Coolant Pipe Line A2038305296
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
-5%
Part no. 9329646-1
Water Pipe BMW F20 LCI F30 F32 Petrol B48 Engine Cooling Hose Line 9329646
Promo price
PLN 132.95
PLN 126.30
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 9845173
BMW F20 F30 LCI Coolant Hose Expansion Tank Cylinder Head B48 Petrol 9845173
Promo price
PLN 47.95
PLN 45.55
Delivery: Jul 02
If paid before 14:00
-5%
Part no. A6511400675-4
EGR Exhaust Cooler Mercedes W639 W906 Diesel OM651 Valve A6511420467
Promo price
PLN 94.95
PLN 90.20
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 7500752
BMW X5 Series E53 M62 PETROL Cooling System Water Hose Pipe 7500752
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
Part no. A2118301396
Water Hose Mercedes W211 CLS W219 M272 Cooling Coolant Pipe Line A2118301396
PLN 94.95
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. 7596839
BMW F20 F21 F30 F31 F32 Petrol N20 Radiator Cooler Coolant Pipe Hose 7596839
Promo price
PLN 46.95
PLN 39.91
Delivery: Jul 02
If paid before 14:00
-15%
Part no. A2055018301
Mercedes W205 Intercooler Water Pipe Line Cooling Coolant Hose A2055018301
Promo price
PLN 142.95
PLN 121.51
Free delivery: Jul 2 – 3
If paid before 14:00
Part no. 2517705
Ford Transit Custom Engine Cooling Radiator Coolant Pipe Hose GK2Q-8A589-AC
PLN 142.95
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 8573716
Water Hose BMW X3 F25 X4 F26 B47 Coolant Cooling Pipe Line 8573716
Promo price
PLN 46.95
PLN 44.60
Delivery: Jul 02
If paid before 14:00
-5%
Part no. A2048300096
Mercedes W204 M271 Water Hose Engine Cooling Coolant Pipe Line A2048300096
Promo price
PLN 123.95
PLN 117.75
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 8V21-8B081-BD
Ford Fiesta Mk7 Cooling Radiator Overflow Hose Coolant Pipe 8V21-8B081-BD
Promo price
PLN 61.95
PLN 58.85
Free delivery: Jul 02
If paid before 14:00
Part no. 7628010
Coolant Hose BMW F87 M2 N55 Engine Cooling Cylinder Head Pipe Line 7628010
PLN 100.95
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 03L121157AL
Volkswagen Sharan 7N Water Hose Cooling Coolant Radiator Pipe Line 03L121157AL
Promo price
PLN 42.95
PLN 40.80
Delivery: Jul 02
If paid before 14:00
-40%
Part no. 8662836
BMW F20 F21 F30 F31 LCI B48 Hose Radiator Top Thermostat Coolant Water 8662836
Promo price
PLN 161.95
PLN 97.17
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. 8573715
Water Hose BMW F20 F30 F31 F10 F11 LCI B47 EGR Cooler Coolant Pipe Line 8573715
Promo price
PLN 56.95
PLN 48.41
Delivery: Jul 02
If paid before 14:00
Part no. 7519248
BMW 5 6 Series E60 E61 E64 Petrol Engine Cooling Radiator Supply Hose 7519248
PLN 142.95
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. A6071400400
EGR Exhaust Cooler Mercedes W176 W246 Heat Exchanger OM607 Diesel 147350364R
Promo price
PLN 94.95
PLN 90.20
Free delivery: Jul 02
If paid before 14:00
Part no. 06K121075P
Audi A3 S3 8V Water Hose Radiator Coolant Pipe Line 2.0 Petrol 06K121075P
PLN 75.95
Free delivery: Jul 02
If paid before 14:00
-15%
Part no. 9802099-1
Mini Cooper R60 R61 Countryman Coolant Water Cooling Hose Pipe Line 9802099
Promo price
PLN 142.95
PLN 121.51
Free delivery: Jul 02
If paid before 14:00
-5%
Part no. 9802110
BMW Mini Countryman Paceman R60 R61 Radiator Water Pipe Coolant Hose Petrol
Promo price
PLN 75.95
PLN 72.15
Free delivery: Jul 02
If paid before 14:00
Part no. A2712300856
Mercedes W203 C209 Kompressor Air Conditioning Condenser Pipe Line
PLN 61.95
Free delivery: Jul 02
If paid before 14:00
Part no. 8658481
BMW F40 Hose Radiator Top Thermostat 8658481
PLN 123.95
Free delivery: Jul 02
If paid before 14:00
Part no. 8507246
BMW F30 F31 F34 F36 Coolant Hose Engine Cooling Radiator Line 8507246
PLN 123.95
Free delivery: Jul 02
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 pipes are key components that enable the circulation of coolant between the radiator, water pump, thermostat, and the engine. Their efficiency and tightness are essential for the proper operation of the cooling system and for preventing engine overheating. In the Global Parts automotive store, you will find a wide selection of used car parts, including cooling system hoses and pipes, ideal for brands such as BMW, Audi, Mercedes, Volkswagen, Mini, and others.
Differences between flexible and rigid cooling system hoses
Flexible cooling hoses made of EPDM rubber or silicone allow for the compensation of engine vibrations and pressure changes. Rigid pipes (e.g., aluminum or PA12 plastic) are used where shape stability and resistance to high temperatures are required – even up to 150–180°C. Modern vehicles often use a combination of both types, which ensures optimal coolant flow and a longer service life for the entire system.
What functions do cooling system hoses and pipes perform?
Cooling system hoses and pipes play a key role in regulating the engine's operating temperature:
- Coolant transport – Hoses and pipes connect key components of the cooling system, enabling the flow of coolant throughout the entire system.
- Overheating prevention – By circulating the coolant, they maintain the proper engine operating temperature, preventing it from overheating.
- Proper flexibility and tightness – The materials from which the hoses and pipes are made ensure their resistance to high temperatures, pressure, and the effects of coolant. Efficient cooling system hoses and pipes are necessary for the effective operation of the entire cooling system.
Construction and purpose of cooling system hoses and pipes
Cooling system hoses and pipes are components that connect individual fluid circuit subassemblies in the engine compartment. They are used to route coolant between the engine, radiator, heater core, thermostat, and expansion tank, and their routing depends on the engine version and mounting location. A typical component has a profile adapted to factory mounting points, ends for clamps or quick-connectors, and markings helpful for comparing OEM numbers.
Comparison of cooling hose types and verification data
| Component type | Typical construction | Application | What to check before purchase |
|---|---|---|---|
| Flexible hose | EPDM rubber or silicone, reinforcing layer | Sections exposed to vibrations and powertrain movement | End diameter, bend shape, surface condition, clamp type |
| Rigid pipe | Plastic or metal, with quick-connector sockets | Fixed flow paths near the engine or radiator | Mounting points, presence of connectors, engine version compatibility |
| Hose with vent or branch | Body with an additional outlet or tee | Connecting multiple circuits in one system | Branch layout, OEM number, sensor or vent position |
Construction and technical parameters of cooling hoses
A typical cooling system hose consists of several layers: an outer protective layer, a reinforcing layer (reinforced with synthetic fiber), and an inner layer – chemically resistant to coolants. The operating pressure of such hoses is usually 1–2 bar, with a burst strength of up to 5 bar. The use of appropriate materials prevents hoses from 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 often EPDM rubber or silicone, which withstand temperatures from –40°C to as high as +150°C. In high-performance vehicles, e.g., BMW M-series or Audi S-Line, silicone hoses with a reinforced textile construction are used, guaranteeing longer service life and resistance to operating pressures above 2 bar. Flexible hoses allow for the compensation of powertrain vibrations, while rigid sections (e.g., aluminum) ensure stability during high fluid flow.
The importance of connectors, joints, and cooperating elements
A cooling system connector is a rigid end of a pipe or housing to which a coolant hose is attached. It serves to tightly connect circuit elements and often works with a clamp, gasket, or quick-connector. In the case of parts such as an Audi A3 8P water connector, it is worth comparing the OEM number, connection diameter, outlet position, and compatibility with the thermostat housing or cylinder head.
Why is it worth taking care of cooling system hoses and pipes?
Damaged or worn cooling system hoses and pipes can lead to serious cooling system problems. Typical symptoms include:
- Coolant leak – Leaks in hoses or pipes can lead to fluid loss and a drop in coolant levels.
- Engine overheating – Restricted coolant flow resulting from hose damage 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 used cooling system hoses and pipes that have undergone detailed quality tests, ensuring their durability and tightness.
Symptoms of damage and cooling hose compatibility - table
| Failure symptom | Possible cause | Recommended action |
|---|---|---|
| Coolant level drop | Micro-leak in the hose | Replace the cooling system hose |
| Engine overheating | Clogged hose or kink | Check for obstructions, replace |
| Vibrations or gurgling | Loose hose mounts | Tighten clamps, check brackets |
| Low engine operating temperature | Excessive flow – lack of resistance | Check thermostat operation |
How to choose the right cooling system hoses and pipes?
When choosing cooling system hoses and pipes, pay attention to several key aspects:
- Vehicle model fitment – Every cooling system has its specific technical requirements. At Global Parts, you will find cooling system hoses and pipes perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and others.
- Technical condition – Ensure that the hoses and pipes are free from cracks, bulges, and other damage.
- Material resistance – Choose hoses and pipes made of materials resistant to high temperatures and operating fluids.
Part selection procedure
To correctly select a cooling system hose, it is worth using the vehicle's VIN or the part's OEM designation. In the Global Parts system, searching is done automatically by engine code or catalog number, which minimizes the risk of a mismatch. As a result, the hoses are fully compatible with the water pump, radiator, and thermostat, and the entire system maintains factory tightness.
Selecting hoses by circuit, mounts, and car version
A cooling system hose is used to route fluid exactly between indicated circuit points, which is why it is not a universal element. When choosing an element such as a radiator hose, check the mounting side, end diameters, presence of quick-connectors, and compatibility with thermostats and cooling system housings. If you are looking for a subassembly such as a hose from the radiator to the engine, it is also worth comparing the bend path, support points, and fitment to water radiators and expansion tanks.
Why choose used cooling system hoses and pipes?
Used car parts, such as cooling system hoses and pipes, are a practical solution that allows for savings while maintaining high quality. By choosing used cooling system hoses and pipes, you gain:
- Lower costs – Used components are significantly cheaper than new ones but offer equally high quality.
- Ecology – Recycling car parts supports environmental protection and reduces waste.
- Wide selection – In our store, you will find cooling system hoses and pipes for the most popular car brands.
Hose cooperation with other cooling system elements
The efficiency of hoses depends not only on the material itself but also on the condition of cooperating elements. In practice, it is worth checking connections with cooling system water pumps, the thermostat housing, the radiator, and hose clamps, and an additional source of knowledge is our guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. Such verification makes it easier to assess whether the problem stems from the hose, a leaking connector, or improper system venting.
How to take care of cooling system hoses and pipes?
To ensure cooling system hoses and pipes work reliably for a long time, it is worth following a few rules:
- Regularly check the condition of hoses and pipes to prevent coolant leaks.
- Monitor the coolant level – a sudden drop may indicate a leak in the hoses.
- Replace damaged or worn elements on time to avoid more serious cooling system problems. If replacement is necessary, at Global Parts you will find suitable used auto parts that will restore full efficiency to your cooling system.
FAQ
| Question | Answer |
|---|---|
| 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. |
Summary: cooling system hoses and pipes at the Global Parts automotive store
Cooling system hoses and pipes are key elements ensuring efficient coolant flow and maintaining optimal engine operating temperature. The Global Parts offer includes used parts matched to vehicles from brands such as Mercedes, Audi, BMW, as well as many other manufacturers. When selecting, it is worth checking the OEM number, fuel type, condition, interchangeable numbers, and compatibility with the engine version and mounting location. We invite you to contact us – we are here to help you! For more information and interesting facts, we also invite you to visit our automotive blog.