Engine cooling
More informationAt the Global Parts automotive store, we offer a wide selection of original used car parts, including engine cooling components, for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
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Part no. 03L121065K
Audi A4 B8 A5 8T 2.0 TDI Hose Thermostat Coolant Pipe Line 03L121065K
Promo price
£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

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Part no. 8K0959501G
Audi A4 B8 Radiator Fan Relay Radiator Electrical Module Control Unit 8K0959501G
Promo price
£32.95
£28.01
Free delivery: Jul 24
If paid before 14:00

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Part no. 8K0121403G
Audi A4 B8 A5 8T Q5 2.0TDI Coolant Reservoir Expansion Tank Bottle 8K0121403G
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£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

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Part no. 5Q0121407G
Audi A3 8V Expansion Tank Header Coolant Reservoir Bottle 5Q0121407G
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£13.95
£13.25
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If paid before 14:00

Part no. 059121012A
Audi A6 C7 Additional Auxiliary Water Coolant Pump 059121012A
£23.95
Free delivery: Jul 24
If paid before 14:00

Part no. 1K0121207BB
Audi A3 8P 1.9 TDI BLS Diesel Radiator Fan Cowling Assembly Shroud 1K0121207BB
£47.95
Free delivery: Jul 24
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Part no. 06H121601N
Audi A4 B9 A5 8T Additional Water Pump Engine Coolant Unit 06H121601N
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£13.95
£13.25
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Part no. 8K0121405N
Audi A5 S5 8T Expansion Tank Header Coolant Reservoir Bottle 8K0121405N
£18.95
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Part no. 5N0965561A
Audi A3 8P Auxiliary Water Pump Coolant Circulation Bracket 5N0965561A
Promo price
£28.95
£24.61
Free delivery: Jul 24
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Part no. 8K0121405E
Audi A5 8T Expansion Tank Header Coolant Reservoir Bottle 8K0121405E
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£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

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Part no. 1K0122101DK
Audi TT 8J 2.0 TFSI BWA Upper Radiator Coolant Hose Line Pipe Tube 1K0122101DK
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£23.95
£20.36
Free delivery: Jul 24
If paid before 14:00

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Part no. 04L121065AJ
Volkswagen Seat Skoda Audi 2.0 TDI Water Coolant Pipe Hose Line 04L121065AJ
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£13.95
£13.25
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Part no. 5N0965561
Audi A4 B7 Auxiliary Water Pump Coolant Circulation Cooling Unit 5N0965561
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£28.95
£17.37
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Part no. 059121031H-1
Water Pump Wheel Audi Q5 8R A7 4G8 3.0 TDI Diesel Coolant Pump Pulley 059121031H
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£18.95
£16.11
Free delivery: Jul 24
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Part no. 5Q0121407A
Audi A3 8V Engine Coolant Water Expansion Tank Bottle 5Q0121407A
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£13.95
£13.25
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If paid before 14:00

Part no. 5Q0121407D
Audi A3 8V Expansion Tank Header Coolant Reservoir Bottle 5Q0121407D
£13.95
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If paid before 14:00

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Part no. 8K0819147A
Audi Q5 8R Additional Auxiliary Water Pump 8K0819147A
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£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

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Part no. 06H121065D
Audi A5 8T 2.0 TFSI Water Hose Cooling Radiator Coolant Pipe Line 06H121065D
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£23.95
£20.36
Free delivery: Jul 24
If paid before 14:00

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Part no. 8K0121164E
Audi A4 B8 Water Pipe Hose Line Engine Cooling Coolant Unit Hose 8K0121164E
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£13.95
£13.25
Free delivery: Jul 24
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Part no. 8K0121207B
Audi A4 B8 Radiator Fan Engine Motor Cooling 8K0121207B
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£66.95
£56.91
Free delivery: Jul 24
If paid before 14:00

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Part no. 8K0959455M
Audi A4 B8 Radiator Fan Engine Cooling Cooler Blower Unit 8K0959455M
Promo price
£28.95
£24.61
Free delivery: Jul 24
If paid before 14:00

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Part no. 8E0121403
Expansion Tank Bottle Audi A4 B6 B7 VW Passat Coolant Reservoir Bottle 8E0121403
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£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

Part no. 03L121157Q
Audi Q3 SE Water Hose Cooling Coolant Radiator Pipe Line Hose 03L121157Q
£18.95
Free delivery: Jul 24
If paid before 14:00

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Part no. 8K0121403T
Audi A4 B8 A5 8T Expansion Tank Header Coolant Reservoir Bottle 8K0121403AC
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£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

Part no. 1K0121109AK
Audi A3 8P Water Cooling Coolant Pipe Hose Line Petrol Engine 1K0121109AK
£13.95
Free delivery: Jul 24
If paid before 14:00

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Part no. 7L0965561L-1
Audi A4 B7 2.0 TDI Quattro Auxiliary Additional Water Pump 7L0965561L
Promo price
£13.95
£13.25
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Part no. 8E0145806Q
Audi A4 B7 3.0 TDI Radiator Intercooler Charge Air Cooler Turbo 8E0145806Q
£28.95
Free delivery: Jul 24
If paid before 14:00

-40%
Part no. 06F121065J
Audi A3 8P TT 8J VW Golf MK5 Coolant Water Pipe Hose Line 2.0 TFSI 06F121065J
Promo price
£28.95
£17.37
Free delivery: Jul 24
If paid before 14:00

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Part no. 5Q0122051EG
Audi A3 8V Water Coolant Pipe Radiator Hose Cooling Fluid Line 5Q0122051EG
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£28.95
£17.37
Free delivery: Jul 24
If paid before 14:00

Part no. 1K0122063J
Audi TT 8J A3 8P Skoda Octavia II 2.0 TFSI Water Coolant Pipe Hose 1K0122063J
£14.95
Free delivery: Jul 24
If paid before 14:00

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Part no. 1K0121205AC
Audi A3 8P 1.6 TDI Radiator Fan Motor Engine Cooling Fan 1K0121205AC
Promo price
£56.95
£34.17
Free delivery: Jul 24
If paid before 14:00

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Part no. 1T0820036D
AUDI Q7 4L 3.0 TDI Quattro Coolant Electro Magnetic Valve Water Line 1T0820036D
Promo price
£28.95
£24.61
Free delivery: Jul 24
If paid before 14:00

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Part no. 5Q0959455AH
Audi A3 8V S1 8X Engine Cooling Fan Radiator Fan Blower 5Q0959455AH
Promo price
£47.95
£28.77
Free delivery: Jul 24
If paid before 14:00

Part no. 06H121026DR
Audi A5 8T 2.0 TFSI CDNB Petrol Engine Water Pump 06H121026DR
£51.95
Free delivery: Jul 24
If paid before 14:00

-40%
Part no. 1K0121251AB
Audi TT 8N Coolant Radiator Engine Cooling Unit Radiator Cooler 1K0121251AB
Promo price
£28.95
£17.37
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 8K0965561A
Audi A4 B8 A5 8T 2.0 TFSI Water Pump Auxiliary Coolant Circulation 8K0965561A
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

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Part no. 06J121065F
Audi TT 8J A3 8P A4 8K Water Hose Cooling Coolant Radiator Pipe Line 06J121065F
Promo price
£28.95
£24.61
Free delivery: Jul 24
If paid before 14:00

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Part no. 03L121071B
Coolant Pipe Audi A4 B8 A5 8T 2.0 TDI Water Cooling Line 03L121071B
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

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Part no. 8K0121403H
Audi A5 8T 2.0 TDI Coolant Expansion Overflow Reservoir Bottle Tank 8K0121403H
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 06K121085M
Audi VW Seat 2.0 TFSI Petrol Water Pipe Engine Coolant Hose Line 06K121085M
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

Part no. 5Q0816721AB
Audi A3 8V Water Hose Radiator Coolant Refrigerant Line 1.6 Diesel 5Q0816721AB
£23.95
Free delivery: Jul 24
If paid before 14:00

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Part no. 1K0121207AA
Engine Cooling Radiator Audi A3 8P Diesel Radiator Coolant Fan 1K0121207AA
Promo price
£94.95
£80.71
Free delivery: Jul 24
If paid before 14:00

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Part no. 1K0121070AQ
Audi TT 8J 2.0 TFSI Water Hose Coolant Pipe Line 1K0121070AQ
Promo price
£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 1K0122109BB
Audi A3 8P Coolant Reservoir Expansion Overflow Line Pipe Hose Tube 1K0122109BB
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 03L121071C
Audi A4 B8 2.0 TDI Water Hose Radiator Coolant Pipe Line 03L121071C
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

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Part no. 03L121132A
Audi A4 B8 2.0 TDI Diesel Thermostat Coolant Housing 03L121132A
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

-40%
Part no. 5Q0121205AL
Radiator Fan Shroud Audi A3 8V Q2 GA Engine Cooling Fan Motor 400W 5Q0121205AL
Promo price
£75.95
£45.57
Free delivery: Jul 24
If paid before 14:00

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Part no. 8K0121251R
Audi A4 B8 Coolant Radiator Engine Cooling Unit Radiator 8K0121251R
Promo price
£56.95
£48.41
Free delivery: Jul 24
If paid before 14:00

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Part no. 8E0121049AC
Audi A4 B7 Water Hose Cooling Radiator Coolant Pipe Line 2.0 Diesel 8E0121049L
Promo price
£28.95
£24.61
Free delivery: Jul 24
If paid before 14:00

-15%
Part no. 06F121065H
Audi A3 8P TT 8J VW Golf GTI 2.0 TFSI Coolant Water Pipe Hose Line 06F121065H
Promo price
£32.95
£28.01
Free delivery: Jul 24
If paid before 14:00

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Part no. 5G0965567A
Water Pump Audi A1 8X Volkswagen Golf VII 1.4 TSI Coolant Pump 5G0965567A
Promo price
£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

-15%
Part no. 1K0959455ES
Audi A3 8P Radiator Fan Engine Cooling Cooler Blower Unit 1K0959455ES
Promo price
£23.95
£20.36
Free delivery: Jul 24
If paid before 14:00

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Part no. 03L121111AD
Audi A4 B8 A5 8T Q5 8RB 2.0 TDI Diesel Thermostat Coolant 03L121111AD
Promo price
£23.95
£20.36
Free delivery: Jul 24
If paid before 14:00

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Part no. 5Q0122073AB
Audi A3 8V 2.0 TFSI Water Coolant Hose Tube Line Pipe 5Q0122073AB
Promo price
£18.95
£16.11
Free delivery: Jul 24
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
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

-15%
Part no. 8K0819334BB
Audi A4 B8 2.0 TDI CNHC Water Coolant Hose Line Pipe 8K0819334BB
Promo price
£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

Part no. RHD-8W2121405N
Audi A4 S4 B9 Radiator Expansion Coolant Tank Overflow Bottle 8W2121405N
£32.95
Free delivery: Jul 24
If paid before 14:00

-40%
Part no. 5Q0121203DE
Audi Q2 GA 1.5 TFSI Radiator Fan Motor Engine Cooling Fan 5Q0121203DE
Promo price
£75.95
£45.57
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 4G0122101AE
Water Hose Audi A4 B8 A6 C7 2.0 TDI Cooling Radiator Pipe Line 4G0122101AE
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 5Q0121070BQ
Audi S3 8V Water Hose Engine Coolant Cooling Pipe Line 5Q0121070BQ
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

Part no. 5Q0122073BK
Audi Q3 8U Water Coolant Hose Tube Line Pipe 2.0 TDI Diesel 5Q0122073BK
£13.95
Free delivery: Jul 24
If paid before 14:00

-15%
Part no. 03L965561A
Audi A4 B8 2.0 TDI Auxiliary Water Pump Coolant Circulation Bracket 03L965561A
Promo price
£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

Part no. 8W0121207
Audi A4 B9 35 TFSI DMSB Motor Radiator Fan Engine Cooling Motor 8W0121207
£199.95
Free delivery: Jul 24
If paid before 14:00

-15%
Part no. 6R0121207F
Audi A1 8X Engine Cooling Radiator Fan Shroud Panel 6R0121207F
Promo price
£170.95
£145.31
Free delivery: Jul 24
If paid before 14:00

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Part no. 1K0959455ET
Audi S3 8P 2.0 TFSI CDLA Cooling Radiator Fan Shroud Right O/S 1K0959455ET
Promo price
£28.95
£24.61
Free delivery: Jul 24
If paid before 14:00

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Part no. 8E0121403F
Audi S4 B6 Coolant Expansion Tank 8E0121403F
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 8K1819376J
Audi A5 8T 2.0 TFSI Water Hose Cooling Coolant Radiator Pipe Line 8K1819376J
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

Part no. 04L121064AC
Audi A3 8V Engine Water Coolant Pipe Cooling Hose Line 04L121064AC
£23.95
Free delivery: Jul 24
If paid before 14:00

-15%
Part no. 5Q0122051AF
Audi Seat Skoda VW Water Coolant Hose Pipe Line Water Coolant 5Q0122051AF
Promo price
£23.95
£20.36
Free delivery: Jul 24
If paid before 14:00

Part no. 5Q0122157CK
Audi A3 8V Water Hose Cooling Radiator Coolant Pipe Line 2.0 TDI 5Q0122157CK
£18.95
Free delivery: Jul 24
If paid before 14:00

-15%
Part no. 06E121111AL
Audi S4 B8 Engine Water Coolant Thermostat Housing 3.0 TFSI Petrol 06E121111AL
Promo price
£28.95
£24.61
Free delivery: Jul 24
If paid before 14:00

Part no. RHD-4F2959617B-1
Audi A6 C6 Auxiliary Water Pump Electric Coolant Unit Valve 4F2959617B
£28.95
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 03L121132AC
Audi A4 B8 A5 8T 2.0 TDI Water Coolant Thermostat Housing 03L121132AC
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 5Q0121058R
Audi VW Seat Skoda Water Hose Cooling Radiator Coolant Pipe Line 5Q0121058R
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

-15%
Part no. 03L122157Q
Audi A4 B8 A5 8T Coolant Pipe Water Cooling Line 2.0 TDI 03L122157Q
Promo price
£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

-15%
Part no. 5Q0122101GH
Audi A3 8V 35 TDI DFGA Water Coolant Hose Line Pipe Tube 5Q0122101GH
Promo price
£37.95
£32.26
Free delivery: Jul 24
If paid before 14:00

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Part no. 04L121064AE
Volkswagen Seat Skoda Audi 2.0 TDI Water Coolant Pipe Hose Line 04L121064AE
Promo price
£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

-40%
Part no. 8K0959455K
Audi A5 S5 8T Engine Cooling Radiator Fan Shroud Panel 8K0959455K
Promo price
£23.95
£14.37
Free delivery: Jul 24
If paid before 14:00

-40%
Part no. 7L0959455G
Audi Q7 4L 3.0 TDI Diesel Engine Cooling Radiator Fan Cooler 7L0959455G
Promo price
£37.95
£22.77
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 8K0121049M
Water Pipe Audi A4 B8 A5 8T 2.0 TFSI Coolant Hose Line 8K0121049M
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

-40%
Part no. 5Q0959455AM-1
Audi S3 8V Radiator Fan Engine Motor Cooling 5Q0959455AM
Promo price
£118.95
£71.37
Free delivery: Jul 24
If paid before 14:00

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Part no. 03C121111T
Audi A1 8X 1.4 TSI Petrol Engine Water Coolant Thermostat Housing 03C121111T
Promo price
£13.95
£13.25
Free delivery: Jul 24
If paid before 14:00

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Part no. 8K0121212C
Audi RS4 B8 Additional Auxiliary Radiator Left N/S Engine Cooling 8K0121212C
Promo price
£127.95
£76.77
Free delivery: Jul 24
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Part no. 06K121132
Audi S3 8V Water Coolant Engine Cooling Flange Pipe Hose Line Petrol 06K121132
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£13.95
£13.25
Free delivery: Jul 24
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Part no. 4F0121251Q
Audi A6 C6 2.0 TDI Engine Cooling Radiator For Manual Gearbox 4F0121251Q
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£47.95
£28.77
Free delivery: Jul 24
If paid before 14:00

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Part no. 7L8121073J
Audi Q7 4L 3.0 TDI Coolant Hose Radiator Pipe Water Cooling Line 7L8121073J
Promo price
£18.95
£16.11
Free delivery: Jul 24
If paid before 14:00

-40%
Part no. 4G0145804A
Audi Q5 8R 2.0 TDI Quattro Engine Coolant Radiator Intercooler 4G0145804A
Promo price
£118.95
£71.37
Free delivery: Jul 24
If paid before 14:00

-40%
Part no. 8E0121049L
Audi A4 B7 2.0 Petrol Water Hose Cooling Radiator Coolant Pipe Line 8E0121049L
Promo price
£28.95
£17.37
Free delivery: Jul 24
If paid before 14:00

Part no. 8W0819334F
Audi A4 B9 35 TFSI Water Hose Cooling Radiator Coolant Pipe Line 8W0819334F
£19.95
Free delivery: Jul 24
If paid before 14:00

Part no. 8E0121101AA
Audi A4 B7 2.0 TDI Water Hose Cooling Coolant Radiator Pipe Line 8E0121101AA
£18.95
Free delivery: Jul 24
If paid before 14:00

-5%
Part no. 1K0122073GF
Audi A3 8P Water Hose Cooling Coolant Radiator Pipe Line 1K0122073GF
Promo price
£13.95
£13.25
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-5%
Part no. 06K109121B
Audi A3 8V TT FV 2.0 TFSI Volkswagen Golf 7 Petrol Water Pump Cover 06K109121B
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£13.95
£13.25
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Part no. 06K121075Q
Audi S3 8V Water Hose Cooling Coolant Radiator Pipe Line 06K121075Q
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£18.95
£16.11
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-40%
Part no. 8R0122055
Audi Q5 8R Heater Water Cooling Coolant Pipe Hose Line 8R0122055
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£47.95
£28.77
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-15%
Part no. 8E0121251A
Audi A4 B7 2.0 TDI Diesel Coolant Radiator Water Cooling Radiator 8E0121251A
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£23.95
£20.36
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Part no. 06K109121E
Audi S3 8Y 2.0 TFSI Volkswagen Golf 8 Petrol Water Pump Cover 06K109121E
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£13.95
£13.25
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Part no. 07K103495E
Audi RS3 8Y Oil Separator Engine Breather Valve 2.5 TFSI DNWC 07K103495E
£142.95
Free delivery: Jul 24
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-15%
Part no. 5Q0121251EC
Audi Q2 GA Coolant Radiator Engine Cooling Unit Radiator 1.6 TDI 5Q0121251EC
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£75.95
£64.56
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-15%
Part no. 04E121600BD
Audi A1 8X 1.4 TFSI CZCA Petrol Engine Water Pump 04E121600BD
Promo price
£23.95
£20.36
Free delivery: Jul 24
If paid before 14:00

Engine cooling system parts – proven solutions for your car
Cooling components for BMW, Audi, Mercedes and others – guaranteed quality and fit
The engine cooling system is one of the most important systems in any vehicle, responsible for maintaining the optimal operating temperature of the powertrain. It prevents the engine from overheating and protects against costly failures. In the Global Parts automotive store, you will find a wide selection of used car engine parts for cooling systems, such as radiators, fans, water pumps, and thermostats. Our range of cooling systems is tailored to brands such as BMW, Audi, Volkswagen, Mercedes, Mini, and many others, ensuring you find the perfect solutions for your vehicle.
How does the engine cooling system work?
The engine cooling system is a complex system responsible for dissipating excess heat generated during engine operation. Its key components include:
- Fans and fan shrouds – responsible for airflow and cooling the radiator.
- Cooling system pipes and hoses – transport coolant between individual system components.
- Water radiators – key components responsible for absorbing heat from the engine and dissipating it.
- Thermostats and cooling system housings – regulate coolant flow, maintaining optimal engine temperature.
- Water pumps – drive the coolant circulation, enabling effective engine cooling.
- Oil coolers and lines – help maintain optimal oil temperature, reducing its degradation.
- Expansion tanks – responsible for maintaining the correct coolant level and compensating for liquid volume changes.
- Covers – protective elements of the cooling system, increasing its durability.
- Clamps and mounting parts – enable stable attachment of cooling system components.
- Fan blades – support cooling by increasing airflow.
- Fan clutches – regulate fan rotational speed depending on engine temperature.
- Fan and blower motors – responsible for fan operation, ensuring proper cooling.
- Temperature sensors – monitor engine and coolant temperature, sending information to the controller. All these components work together to ensure the engine has a stable operating temperature, protecting it from overheating or excessive cooling.
Construction and purpose of engine cooling
Engine cooling is a group of parts responsible for absorbing, transporting, and dissipating heat from the powertrain. This system is located in the engine compartment and includes, among others, the radiator, hoses, thermostat, water pump, fan, and expansion tank. Its task is to maintain the operating temperature regardless of load, ambient temperature, and driving conditions.
Comparison of cooling system component types
| Component type | Main function | What to check when selecting |
|---|---|---|
| Radiator | Dissipating heat from fluid to air | OEM number, core dimensions, connector type, presence of sensor or switch port |
| Fan with shroud | Forcing airflow at low speeds and when stationary | Rotor diameter, number of pins, control type, mounting points |
| Thermostat with housing | Regulating fluid circulation between small and large circuits | OEM number, opening temperature according to manufacturer, housing shape, seal type |
| Pipe or hose | Connecting components and transporting coolant | Pipe profile, end diameter, quick-connectors, mounting location |
Cooling system parameters in cars
The cooling system in a passenger car operates in a temperature range from 85°C to 105°C, depending on the vehicle model and manufacturer specifications. Modern radiators are most often made of aluminum, which provides better thermal conductivity and lower weight. Coolant flow requires appropriate pressure – usually from 0.9 to 1.5 bar – which is maintained by the expansion tank cap. Correct operating parameters of this system are crucial for maintaining the efficiency of the entire engine.
Why is it worth taking care of the engine cooling system?
Regular maintenance and replacement of worn cooling system components are the basis for long and reliable engine operation. A neglected system can lead to:
- Engine overheating, which increases the risk of serious damage.
- Coolant leaks, which can reduce cooling efficiency.
- Higher repair costs resulting from failures caused by a faulty system. At Global Parts, we offer original used car parts that undergo detailed quality tests, ensuring their reliability.
The importance of fluid flow and component cooperation
Coolant circulation is used to transport heat from the engine block to the radiator, where energy is released into the environment. In practice, this means the cooperation of the water pump, thermostat, hoses, and fan, as well as often elements from the Air conditioning and heating systems and Automotive electrical systems departments. When choosing a component such as a BMW E90 fan, it is worth comparing the OEM number, number of pins, rotor diameter, and housing type.
Most common cooling system elements and their roles
| System element | Function | Typical failure symptoms |
|---|---|---|
| Radiator | Dissipating heat from fluid | Fluid leak, temperature rise |
| Water pump | Coolant circulation | Loud operation, engine overheating |
| Thermostat | Regulating fluid flow | Too slow heating or rapid overheating |
| Temperature sensor | Monitoring temperature | Incorrect readings, computer error |
| Fan | Forcing airflow | No cooling when stationary |
How to choose the right cooling system parts?
When deciding to purchase parts for the cooling system, it is worth paying attention to several key factors:
- Matching the vehicle model – Each car make and model has its own technical specifications. At Global Parts, you will find parts dedicated to BMW, Audi, Volkswagen, Mercedes, Mini, and many others.
- Technical condition – Used parts, such as radiators or water pumps, should be fully functional and ready for further use.
- Radiator type – Depending on your needs, you can choose standard radiators, intercoolers, or those dedicated to sports vehicles.
Selecting parts by OEM, engine version, and mounting location
An auxiliary pump, thermostat housing, or fan may differ in connector, pipe diameter, control method, and position in the engine compartment. If you are looking for a component such as an auxiliary water pump for BMW E87, you should compare the OEM number, flow direction, electrical plug type, and compatibility with a specific equipment version. If you are completing a larger repair, the article Comprehensive supply: From engine to the smallest clip – how to collect used car parts in one place? may also be helpful.
Compatibility examples
When choosing cooling system parts, it is worth paying attention to compatibility with other components. For example, a radiator for a BMW 3 Series (E46) may be matched to several engine variants – both petrol and diesel – however, the water pump will have different catalog numbers depending on the unit capacity. Similarly, in the Audi A4 B8, several types of thermostats were used, differing in opening temperature range (from 87°C to 95°C).
Why choose used cooling system parts?
Car parts for the cooling system are a solution that allows you to combine high quality with savings. Why is it worth considering them?
- Lower costs – Used radiators, water pumps, and thermostats are significantly cheaper than new ones but offer equally high quality.
- Ecology – By choosing used auto parts, you support recycling and reduce the amount of automotive waste.
- Wide range – We offer parts for the most popular car brands, making it easy to find components suitable for your car.
How to take care of the engine cooling system?
To ensure your cooling system works efficiently for a long time, it is worth remembering a few rules:
- Regularly check the level and quality of the coolant – contaminated or low fluid levels can lead to engine overheating.
- Check the condition of the radiator and hoses – leaks or damage can reduce cooling efficiency.
- Replace the coolant according to the manufacturer's recommendations – this is key to keeping the system in perfect condition. If you notice any problems, at Global Parts you will find suitable used auto parts that will help restore your vehicle to full efficiency.
Failure symptoms and installation practice
A radiator is a heat exchanger mounted at the front of the car, usually behind the grille and in front of the engine, which works with the fan and fluid hoses. Its effectiveness depends not only on tightness but also on the patency of the core, the condition of the mounts, and proper bleeding of the entire system. In the case of parts such as a Mini Cooper radiator, you need to check the arrangement of mounts, body version, presence of connections, and compatibility with elements from the Intake and fuel system and Engines and parts departments.
FAQ
| Question | Answer |
|---|---|
| What is the construction and purpose of engine cooling? | Engine cooling is a set of parts responsible for maintaining the proper operating temperature of the powertrain. A typical system consists of a radiator, water pump, thermostat, hoses, fan, sensors, and an expansion tank. These elements are located mainly in the engine compartment and connected by a coolant circuit. |
| What is engine cooling used for? | Engine cooling is used to absorb excess heat from the block and cylinder head and to stabilize the operating temperature during driving and when stationary. An efficient system limits the risk of overheating and also affects the proper operation of the heater, fan, and control sensors. Without proper cooling, engine performance may drop, and cooperating components may fail. |
| What role does the expansion tank play in the cooling system? | The expansion tank is a cooling system element that absorbs fluid volume changes resulting from temperature increases and decreases. It is used to maintain the correct fluid level and works with a pressure cap that stabilizes the system's operating conditions. Fluid levels and the condition of return hoses are often checked within its vicinity. |
| How to choose a cooling system part for a specific car version? | It is safest to compare the OEM number, engine version, body type, and mounting location. It is also worth checking the number of pins in the plug, pipe diameter, mounting type, and the presence of additional sensors. For parts such as a fan or auxiliary pump, the control method also matters. |
| What symptoms indicate cooling system problems? | Typical symptoms include rising engine temperature, fluid leaks, the fan not turning on, steam from under the hood, or the unit taking too long to warm up. In some cars, temperature sensor errors or weaker interior heating also appear. Symptoms should be analyzed in conjunction with the operation of the thermostat, water pump, and hose tightness. |
| What to pay attention to when installing engine cooling parts? | After installation, you must check the tightness of connections, correct seating of mounts, and the condition of seals. It is also important to top up with the correct fluid and bleed the system according to the manufacturer's procedure. In the case of electrical parts, you should additionally verify the plugs, wiring harness, and fan control operation. |
Summary: engine cooling at the Global Parts automotive store
The engine cooling system is the foundation of every vehicle's reliability. By taking care of its proper operation, you ensure your engine has an optimal operating temperature, extend its lifespan, and prevent costly failures. At Global Parts, you will find engine cooling parts matched to many car models and versions, including brands such as BMW, Audi, Volkswagen, Mercedes, Mini, and others. 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.