Thermostats and housings in the cooling system
More informationAt Global Parts, we offer a wide selection of original used car parts, including thermostats and housings for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Our thermostats and housings undergo quality control to ensure you receive a top-quality product.
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Category
Subcategory
Condition
In Stock
Price
-5%
Part no. 7552403
BMW E60 E81 E87 E90 E91 Thermostat Housing Water Coolant N43 Petrol 7552403
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. A6512001056
Thermostat Housing Mercedes W204 W207 W212 OM651 Coolant Unit Cover A6512001056
€23.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 8699290
Mini Cooper R55 R56 Engine Cooling Thermostat With Housing Petrol 8699290
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 8575625
Thermostat Housing BMW F20 F21 LCI B37 Diesel Engine Cooling Unit 8575625
Promo price
€32.95
€28.01
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 8507694
Thermostat BMW E90 E91 LCI F20 F30 N47N Diesel Engine Water Coolant Unit 8507694
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6462000715
Mercedes W211 OM646 Diesel Radiator Coolant Thermostat Housing A6462000715
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. A6422002215
Thermostat Mercedes W204 W212 GL X164 OM642 Coolant Housing Valve A6422002215
Promo price
€37.95
€32.26
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7805811
BMW 1 3 5 7 Series E60 E65 E87 E90 Diesel M47 M57 Thermostat Adapter 7785053
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 8516203
BMW X1 E84 E90 E91 E92 E93 LCI F10 F11 F20 F30 F36 Thermostat Housing 8516203
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7502779
BMW 5 6 7 X5 Series E53 E60 E61 E63 E64 E65 E70 F01 F10 F11 Thermostat 7502779
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 7534521
Mini Cooper R55 R56 Engine cooling thermostat with housing Petrol 7534521
Promo price
€33.95
€28.86
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 03C121111P
Volkswagen Touran 1T Water Coolant Thermostat Housing 03C121111P
Promo price
€28.95
€24.61
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 6C1Q-8A586-AC
Ford Transit Mk7 TDCi Thermostat Coolant Housing Diesel 6C1Q-8A586-AC
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 7510959-1
BMW 1 3 X3 Series E46 E83 E87 E90 E91 Water Thermostat Petrol N46 7510959
Promo price
€32.95
€28.01
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 7588876-1
Coolant Thermostat Mini Cooper S R56 LCI N18 Engine Cooling Housing 7588876
Promo price
€37.95
€32.26
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6422001615
Mercedes W204 W212 W221 OM642 Thermostat Water Coolant Diesel Heat Management
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. 1437040
BMW E39 E46 E60 E65 E53 E83 E36 Coolant Thermostat Housing 1437040
€23.95
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 7598865
Thermostat Coolant Pump BMW F20 F21 F30 F32 N55 Petrol Engine Cooling 2394968
Promo price
€42.95
€36.51
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 03L121111AE
Volkswagen Sharan 7N Coolant Thermostat Housing Cover Cooling Unit 03L121111AE
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. A6542000115
Mercedes W213 W447 OM654 Diesel Coolant Thermostat Housing Unit A6542000115
€56.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7805192
BMW E60 E61 E81 E87 E90 E91 E92 E93 LCI N47 Diesel Thermostat 7805192
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 06E121111AL
Audi S4 B8 Engine Water Coolant Thermostat Housing 3.0 TFSI Petrol 06E121111AL
Promo price
€32.95
€28.01
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 04B121111C
Volkswagen Polo Mk5 Coolant Regulator Thermostat Housing Pipe 1.4 TDI 04B121111C
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 03G121113A
Audi A3 8P 1.9 TDI BLS Diesel Coolant Thermostat 03G121113A
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. 7536655
BMW E60 E61 E63 E81 E87 E90 E91 E93 Petrol Thermostat Housing Unit 7536655
€23.95
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. A6512001956
Mercedes W212 Diesel OM651 Coolant Pipe Fuel Filter Bracket A6512001956
€23.95
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. 03G121121C
Audi A4 B7 2.0 TDI BRE Diesel Engine Water Coolant Thermostat Housing 03G121121C
€23.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 06E121161AN
Audi S4 B8 Engine Water Coolant Flange Housing 3.0 TFSI Petrol 06E121161AN
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7536655-1
BMW E60 E61 E63 E81 E87 E90 E91 E93 Petrol Thermostat 7536655
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-40%
Part no. A2702000615
Mercedes C117 W176 W246 M270 Coolant Thermostat Housing A2702000615
Promo price
€47.95
€28.77
Free delivery: Jul 3 – 6
If paid before 14:00
-40%
Part no. 7831103
Thermostat Housing BMW M3 E46 Z4 M3 E85 E86 Petrol S54 Coolant Line 7831103
Promo price
€66.95
€40.17
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. A6512000251
Water Pump Hose Mercedes W204 OM651 Diesel Engine Coolant Line A6512000251
€37.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 1872633
Ford B-Max C-Max Fiesta Mk7 Focus Thermostat Housing Engine Coolant CM5G9K478GA
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6512001056-1
Thermostat Housing Mercedes W204 W207 W212 OM651 Coolant Unit Cover A6512001056
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7L0317027A
VW Volkswagen Touareg 7L Porsche Cayenne 9PA Thermostat Oil Cooler Radiator
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 06A121133AL
Audi A3 8P 1.6 MPI BSE Petrol Coolant Thermostat Housing Sensor 06A121133AL
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 06E121168
Audi A4 B7 A4 B8 A5 B8 Q5 Water Coolant Flange Cover 06E121168
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 2283787
BMW E90 E92 E93 LCI M3 Regulator Oil Level Temperature Heat Exchanger
Promo price
€28.95
€24.61
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. 8516206
BMW F10 F30 F32 N57N 330d 430d 530d Diesel Thermostat Housing 8516206
€23.95
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. A2702002200
Mercedes W176 Petrol Engine M270 Coolant Thermostat A2702002200
Promo price
€37.95
€32.26
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. 07K121111E
Audi RS3 8Y Thermostat Housing Coolant Unit 2.5 TFSI Petrol 07K121111E
€237.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7633477
BMW F20 F22 F30 F32 N20 Engine Cooling Pump Thermostat Housing 7633477
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6422001156
Thermostat Housing Pipe Mercedes W204 W212 OM642 Thermostat Flange A6422001156
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7805191
BMW E87 E60 LCI E81 E82 E88 E90 E91 Thermostat Housing 7805191
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 8674895
Mini Cooper R60 Coolant Cooling Thermostat Housing N16 N18 Engine 8674895
Promo price
€32.95
€28.01
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7647751
Mini Cooper R55 R56 LCI Engine Cooling Thermostat With Housing 7647751
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7838480
Thermostat BMW E90 E92 E93 M3 Housing Engine Cooling 7838482
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 03C121111B-1
Volkswagen VW Polo Mk5 6R Water Coolant Thermostat Housing 03C121111B
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-40%
Part no. A1562030475
Mercedes W204 C63 AMG M156 Petrol Thermostat Coolant Housing A1562030475
Promo price
€104.95
€62.97
Free delivery: Jul 3 – 6
If paid before 14:00
-40%
Part no. 110615482R
Renault Trafic III Opel Vivaro B 1.6 DCi Thermostat Coolant Housing 110615482R
Promo price
€56.95
€34.17
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 8577668
BMW F48 F45 F39 B48 B47 Diesel Thermostat Coolant Water Pump Housing 8577668
Promo price
€32.95
€28.01
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. A6462000015
Mercedes W204 W211 Thermostat Water Coolant Pump OM646 Diesel Engine A6462000015
€23.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6402000515
Mercedes W169 W245 OM640 Diesel Thermostat Coolant Housing A6402000515
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-40%
Part no. 59001091173
Charge Air Pipe Saab 9-3 1.9 Ttid Turbocharger Valve Tube 59001091173
Promo price
€42.95
€25.77
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 06M121115K
Thermostat Housing Audi A4 B9 A5 F5 Petrol Engine Water Coolant 06M121115K
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6072000215
Mercedes W176 W246 OM607 Coolant Thermostat Housing Cooling Unit A6072000215
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 03L121132A
Audi A4 B8 2.0 TDI Diesel Thermostat Coolant Housing 03L121132A
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 044121113
Volkswagen Polo Mk4 Coolant Thermostat 044121113
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. 8642560
BMW G20 Petrol Engine Heat Management Thermostat Water Coolant Module 8642560
€42.95
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 1439110
BMW X5 E53 Thermostat Radiator Oil Cooler Mounting Plate Petrol 1439110
Promo price
€32.95
€28.01
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7809191
BMW Mini Cooper D R55 R56 Engine Cooling Thermostat With Housing 7809191
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 04L121026L
Volkswagen Transporter T6 Thermostat Coolant Housing 2.0 TDI CXGB 04L121026L
Promo price
€37.95
€32.26
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 06E121111G
Audi A4 B7 A8 A6 Coolant Regulator Thermostat Housing 06E121111G
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. 8482981
BMW F40 F44 Mini F54 F56 F60 8482981 8482981 Engine Thrermostat 8482981
€113.95
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. A6402000715
Mercedes W169 W245 OM640 Coolant Thermostat Housing Cooling Unit A6402000715
Promo price
€28.95
€24.61
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6072000415-1
Mercedes Citan W415 OM607 Renault Megane III 1.5 dCi Thermostat A6072000415
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6422000215
Mercedes W164 OM642 Diesel Thermostat Coolant Housing Cooling Unit A6422000215
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 03L121111AD
Audi A4 B8 A5 8T Q5 8RB 2.0 TDI Diesel Thermostat Coolant 03L121111AD
Promo price
€28.95
€24.61
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 8635689
BMW F20 F22 F30 F32 N20 Engine Cooling Pump Thermostat Housing 8636594
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. A1192000015
Mercedes C140 M119 Coolant Thermostat Housing Petrol A1192030175
€23.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 1C1Q-8594-BA
Ford Transit Mk7 2.4 TDCi Thermostat Oil Cooler Housing Unit Diesel 1C1Q-8594-BA
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. A6082000015-1
Thermostat Mercedes W177 OM608 Thermostat Coolant Unit Housing A6082000015
€23.95
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 06H121026AG
Audi A3 8P VW Passat B7 Water Pump Thermostat Coolant Regulator 06H121026AG
Promo price
€51.95
€44.16
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. 2350518
Ford Transit Mk8 Ranger Thermostat Housing 2.0 EcoBlue Diesel KK3Q-9K478-CA
€47.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A2662030675
Thermostat Housing Mercedes W169 W245 M266 Petrol Coolant A2662030675
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 03L121131F
VW Volkswagen Golf 6 VI 1.6 TDI Thermostat Valve Thermostat Housing 03L121131F
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. BK3Q-8A586-AB
Ford Transit Mk7 Thermostat Oil Cooler Housing Diesel BK3Q-8A586-AB
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. A6422002815
Thermostat Mercedes Vito W639 Diesel OM642 Thermostat Flange A6422002815
Promo price
€32.95
€28.01
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. A1772008801-1
Mercedes W205 W213 63 AMG Water Pump Thermostat Housing V8 M177 A1772000000
€237.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 7787870
BMW E87 E90 EGR Coolant Thermostat Exhaust Gas Cooling M47N M57N 7787870
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. A6082000700-1
Mercedes W177 Thermostat Coolant Housing Coupling Pipe Hose A6082000700
€28.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 03G121113
VW Volkswagen Golf Mk6 5K Coolant Thermostat 2.0 1.6 TDI Diesel Engine 03G121113
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A1112031075
Mercedes W202 W203 W210 M111 Coolant Thermostat Housing A1112031075
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. C1Q8A586AC
Ford Transit Mk7 2.2 TDCi Thermostat Housing Diesel C1Q-8A586-AC
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 038121132D
Audi Seat Skoda VW Golf MKV Coolant Flange Thermostat Housing Flange 038121132D
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 04L121111H-1
Audi A4 B8 A5 F5 TT FV Thermostat Coolant Housing Valve 2.0 TDI 04L121111H
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 9656182980
Peugeot Expert 2.0 HDi Thermostat Coolant Cooling Unit Housing Diesel 9656182980
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6422340539
Mercedes-Benz W207 W212 W221 OM642 Engine Belt Tensioner Bracket A6422340539
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Part no. AL3Q-9K478-DB
Range Rover Vogue L405 Thermostat Housing 4.4 SDV8 Diesel AL3Q-9K478-DB
€85.95
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 03P121111D
Seat Ibiza 6J CFWA Diesel Engine Thermostat Housing Cover 03P121111D
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. A6512000615
Mercedes Sprinter W906 OM651 Coolant Thermostat Housing A6512000615
Promo price
€32.95
€28.01
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 2S4Q8594AB
Ford Transit Connect 1.8 TDCi Thermostat Coolant Housing Diesel 2S4Q-8594-AB
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 04L121071E
Audi A3 8V VW Golf Mk7 Thermostat Housing Coupling 2.0 TDI 04L121071E
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. A6512000151
Mercedes Sprinter W906 OM651 Diesel Engine Coolant Water Pump Line A6512000151
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. YC1Q8594-BA
Ford Transit MK 6 2.4 Tdci Diesel Engine Coolant Thermostat YC1Q8594-BA
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. A2782001700
Mercedes CLS C216 Thermostat Pipe Coolant Hose Line CL 63 AMG A2782001700
Promo price
€113.95
€96.86
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 1298524
DAF 85CF Thermostat Housing Engine Cooling 1298524
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
-15%
Part no. 8671517
BMW F01 F10 F11 Petrol Enigne Coolant Cooling System Thermostat Housing 8671517
Promo price
€28.95
€24.61
Free delivery: Jul 3 – 6
If paid before 14:00
-5%
Part no. 022121111G
Volkswagen Touareg 7L Coolant Thermostat Housing Assembly 022121111G
Promo price
€23.95
€22.75
Free delivery: Jul 3 – 6
If paid before 14:00
Thermostats and housings in the engine cooling system – reliable operation in all conditions
How do thermostats work and what are the housings in cooling systems made of?
Thermostats and housings are key components of the cooling system, responsible for controlling coolant flow and maintaining the engine's optimal operating temperature. Their efficiency ensures engine performance, reduced fuel consumption, and protection against overheating. In the Global Parts automotive store, you will find a wide selection of used car parts, including thermostats and housings, ideal for brands such as BMW, Audi, Mercedes, Volkswagen, Mini, and others.
Definition and operating principle of a thermostat
A thermostat is a thermal valve that opens at a strictly defined temperature (usually between 85°C and 95°C) and allows coolant to flow to the radiator. In the case of BMW M57 engines used in BMW E60 models, the popular TH580 thermostat begins to open at 88°C, ensuring an ideal balance between rapid engine warm-up and maintaining the optimal operating temperature. In Audi A4 B8 models, a typical thermostat opens slightly earlier – at 87°C, which results from the different characteristics of the cooling system.
Construction and materials of thermostat housings
Thermostat housings are most often manufactured from high-strength plastics or aluminum. Modern solutions combine these materials, ensuring lightness, corrosion resistance, and a perfect fit to the mounting socket. In premium class vehicles, such as BMW or Mercedes, components with silicone seals are also used, which maintain tightness even at pressures up to 1.5 bar.
What functions do thermostats and housings perform?
Thermostats and housings play a key role in regulating engine operating temperature:
- Coolant flow regulation – the thermostat opens and closes the coolant circuit depending on the engine temperature.
- Faster engine warm-up – the thermostat keeps the coolant in the engine until the optimal temperature is reached, which improves engine efficiency, especially on cold days.
- Overheating protection – a functional thermostat prevents excessive engine temperature rise by directing coolant to the radiator.
- Thermostat housings – ensure tightness and stable mounting of the thermostat within the cooling system.
Construction and purpose of thermostats and housings in the cooling system
Thermostats and housings in the cooling system are an assembly usually mounted near the engine, at the junction of the small and large coolant circuits. The thermostat is responsible for the moment the flow to the radiator opens, while the housing serves as a body with ports, a gasket seat, and mounting points to the engine block or hoses. Depending on the version, the component may work with temperature sensors and assemblies from the cooling system hoses and pipes category. When choosing products in this category, it is worth comparing the OEM number, interchangeable numbers, fuel type, and port layout.
Comparison of thermostat and housing variants
| Variant | Construction | What to check before purchase | Cooperating elements |
|---|---|---|---|
| Thermostat only | Thermal insert with valve and seal | Opening temperature, diameter, OEM number, socket compatibility | water radiators, housing, coolant |
| Thermostat housing | Plastic or aluminum body, ports, gasket seat | Mounting layout, number of outlets, presence of sensor socket, condition of ports | Thermostat, gasket, hoses, mounting clamps |
| Thermostat assembly with housing | Complete unit ready for installation | VIN compatibility, OEM part number, engine version and fuel type | cooling system water pumps, temperature sensor, hoses |
Advantages of a functional thermostat
A properly operating thermostat contributes to optimal engine performance, reducing fuel consumption by as much as 5–7%, and also lowers exhaust emissions. By maintaining a stable operating temperature, engine oil retains its lubricating properties, which translates into a longer engine lifespan.
Why is it worth taking care of thermostats and housings?
Wear or damage to thermostats and housings can lead to serious cooling system problems. Typical symptoms include:
- Engine overheating – a damaged thermostat may not open the circuit, leading to an increase in engine temperature.
- Slow warm-up – thermostat failure can cause continuous coolant flow, which extends the engine warm-up time.
- Coolant leak – leaks in the thermostat housing can lead to fluid loss and a drop in coolant levels. At Global Parts, we offer used thermostats and housings that have undergone detailed quality tests, ensuring their durability and reliability.
Typical symptoms and possible causes of thermostat faults
| Symptom | Possible cause | Recommended action |
|---|---|---|
| Engine overheats | Thermostat does not open | Replace thermostat |
| Engine warms up slowly | Thermostat stuck in open position | Inspect or replace |
| Coolant leak | Leaking thermostat housing | Check gasket or replace housing |
| Temperature fluctuations | Contaminated cooling system | Replace coolant, flush system |
How to choose the right thermostats and housings?
When choosing thermostats and housings, pay attention to several key aspects:
- Vehicle model fitment – every cooling system has its specific technical requirements. At Global Parts, you will find thermostats and housings perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and others.
- Technical condition – used thermostats and housings should be free from mechanical damage and airtight to prevent leaks.
- Opening temperature – ensure that the thermostat opens at the correct temperature recommended by the vehicle manufacturer.
Part selection by OEM, engine version, and equipment
The thermostat housing is a body that guides coolant between the engine, radiator, and hoses, so it must match not only the car model but also the engine unit version. When choosing a component like a Peugeot 207 thermostat housing, it is worth checking the number of ports, sensor position, mounting method, and gasket compatibility with the socket. This type of assembly is sometimes connected to tanks from the expansion tanks category, so in case of a leak, it is good to assess the entire circuit, not just one sub-assembly.
Compatibility and installation
The BMW E60 thermostat with an M57 engine requires a component marked TH580, which is also compatible with some versions of the BMW 530d and X5 E53. In turn, the A4 B8 thermostat fits 2.0 TDI and 1.8 TFSI units, and its replacement is relatively simple – just disconnect the intake hose, drain some coolant, and install the new thermostat with a new gasket.
Why choose used thermostats and housings?
Used car parts, such as thermostats and housings, are a practical solution that allows for savings while maintaining high quality. By choosing used thermostats and housings, 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 thermostats and housings for the most popular car brands.
Practical installation tips and system inspection
The thermostat gasket is the element responsible for a tight connection between the housing and the engine or hose, and its condition has a direct impact on cooling system pressure. For parts such as a Mercedes W211 thermostat, before installation, it is worth comparing the OEM number, bolt layout, port diameter, and the presence of a sensor location. When completing a repair for a specific model, for example, Renault Master 3, it is also good to verify hose routing, access for bleeding, and compatibility with the fuel type. A helpful diagnostic supplement is the article Engine cooling system – overheating, repair, and used radiators, which describes the relationships between engine operating temperature and the condition of the entire system.
How to take care of thermostats and housings?
To ensure thermostats and housings work reliably for a long time, it is worth following a few rules:
- Regularly check the condition of the thermostat and housing, especially if you notice problems with engine operating temperature.
- Replace coolant according to the manufacturer's recommendations to prevent scale and sediment buildup in the system.
- Monitor coolant levels – a sudden drop may indicate a leak in the thermostat housing.
- If replacement is necessary, at Global Parts you will find suitable used auto parts that will restore full functionality to your cooling system.
Practical tips
During the installation of a new thermostat, always replace the gasket and check that the cooling hoses are clean and unobstructed. For the BMW E60 or Audi A4 B8, it is also recommended to bleed the system after replacement to prevent air bubbles, which can disrupt fluid circulation.
FAQ
| Question | Answer |
|---|---|
| What is the construction and purpose of thermostats and housings in the cooling system? | Thermostats and housings in the cooling system are an assembly responsible for directing coolant flow between the engine and the radiator. A typical set consists of a thermostatic insert, a housing body, a gasket, and connection ports. This element is located in the engine compartment and is mounted in the location provided by the manufacturer for the given cooling circuit. |
| What are thermostats and housings in the cooling system used for? | Thermostats and housings are used to maintain the proper operating temperature of the engine unit and to control the moment of fluid flow to the radiator. A functional thermostat accelerates reaching operating temperature, and a tight housing prevents fluid loss. Without these elements, the engine may run too cold or overheat, which affects fuel consumption, lubrication, and equipment durability. |
| What is the construction and function of a thermostat gasket? | A thermostat gasket is a sealing element mounted between the housing and the contact surface in the cooling system. Its task is to maintain tightness during changes in temperature and operating pressure. In practice, one must pay attention to the gasket material, its profile, and compatibility with the specific body and OEM number. |
| How to choose a thermostat or housing for a specific car? | The safest way is to compare the OEM part number, interchangeable numbers, engine version, fuel type, and the layout of ports and mounts. In many cars, the presence of a temperature sensor and the type of seal also matter. When selecting, it is worth checking compatibility by VIN and comparing photos of the element with the removed part. |
| What symptoms indicate a problem with a thermostat or housing? | The most common symptoms are engine overheating, slow warm-up, fluctuations in temperature readings, and coolant leaks around the housing. Sometimes, weaker interior heating or traces of dried fluid near the ports also appear. Such symptoms should be assessed together with the condition of the hoses, gasket, and fluid level. |
| What does the proper installation of a thermostat and housing involve? | Installation involves cleaning the contact surfaces, installing the correct gasket, and securing the part without stressing the hoses. After replacement, the coolant must be topped up and the system bled according to the procedure for the specific car version. It is also worth checking for leaks after the engine has warmed up and verifying that the operating temperature returns to stable values. |
Summary: thermostats and housings in the cooling system at the Global Parts automotive store
Thermostats and housings are key components of the cooling system that ensure optimal engine operating temperature and protect against overheating. In the Global Parts offer, you will find used parts matched to many models and engine versions of brands such as Mercedes, BMW, Audi, and others. When choosing, it is worth comparing the OEM number, interchangeable numbers, fuel type, and housing construction so that the fitment to the mounting location is correct. 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.