11537598865 Coolant Thermostat Housing Assembly for BMW
Product: Coolant Thermostat Housing Assembly
Primary OE: 11537598865
Item code: TH260727-004
Cross-reference numbers:
11537598865
Brand: BMW
Configuration: integrated plastic thermostat housing with multiple coolant ports and electrical connection
Application reference: BMW 3 Series, 5 Series, X1, X3 and Z4 source applications; verify the exact vehicle through VIN, engine data and removed-part comparison.
Inspection focus: housing port layout, electrical connector, mounting pattern, hose-neck diameters, molded seams and gasket interfaces
Supply note: Quote TH260727-004 with quantity, destination and packing requirements; sample approval is available for B2B orders.
11537598865 covers an integrated BMW thermostat housing assembly that combines coolant routing, temperature control and an electrical interface. Yongshang Auto tracks this product as TH260727-004 for quotation, sample review and order traceability.
The source information covers BMW 3 Series, 5 Series, X1, X3 and Z4 source applications. Since the OE reference may span several models or production changes, the Model filter stays blank and fitment approval should use vehicle-specific evidence.
Product Technical Specifications
| Product type | Coolant Thermostat Housing Assembly |
|---|---|
| Primary OE reference | 11537598865 |
| Internal item code | TH260727-004 |
| Vehicle brand | BMW |
| Model filter | Intentionally left blank; verify by VIN and engine data |
| Cross-reference numbers | 11537598865 |
| Configuration | integrated plastic thermostat housing with multiple coolant ports and electrical connection |
| Verification method | OE catalogue, VIN, engine code and removed-part comparison |
Map-Controlled Coolant Management for BMW Engines
The assembly routes coolant through several molded passages while the internal thermostat regulates radiator flow. On map-controlled systems, the electrical heater allows the engine controller to influence opening behavior under selected conditions.
Because the source spans several BMW series, Model is deliberately left blank. Verification should begin with the engine and VIN rather than one chassis name.
BMW Housing, Connector and Port Validation
Use the BMW parts catalogue to confirm engine code, build month and OE supersession. Compare every coolant neck, mounting ear and connector key with the removed housing.
Inspect hose diameters, sensor or heater connections and gasket geometry. A connector that appears similar may use a different keying or control specification.
Plastic Housing and Electrical Quality Control
Examine molded seams, threaded inserts and hose necks for transport damage. Keep the internal valve and connector dry and protected until installation.
Replace approved seals, follow BMW torque data and reconnect the electrical plug without strain. Bleed the circuit using the required service procedure and scan for related faults.
Wholesale Supply and Sample Approval
Use 11537598865 as the principal sourcing reference and TH260727-004 as the internal item code. Include required quantity, destination, carton marking and labelling instructions in the enquiry.
For technical approval, buyers may send VIN details, engine information, temperature specification, measurements and images of the removed thermostat. Mixed cooling-system orders can be reviewed before shipment.
Frequently Asked Questions
Why does 11537598865 include a complete housing?
The thermostat, coolant routing body and electrical interface are integrated, allowing the assembly to manage several cooling-system connections.
Why is no BMW Model selected?
The source covers multiple BMW series; VIN, engine code and production month are needed for dependable fitment.
Which electrical detail should be checked?
Compare connector shape, keying and pin arrangement, and verify the vehicle catalogue specifies the same map-controlled thermostat.
What physical damage should reject the part?
Cracked hose necks, distorted mounting ears, damaged connector pins, split molded seams or poor gasket surfaces require rejection.
How can buyers request 11537598865 supply?
Send the OE number, TH260727-004, volume, destination and packing format, plus VIN or original-part evidence for approval.
Request a 11537598865 Thermostat Quote
Contact Yongshang Auto with OE 11537598865, item code TH260727-004, quantity and delivery destination. Confirm compatibility before production ordering or workshop installation.






