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Stant 49502 Engine Coolant Thermostat / Water Outlet Assembly
Overview of Stant Integrated Thermostat Housing 49502
The Stant Integrated Thermostat Housing 49502 is engineered for precise temperature regulation in BMW 540i, 740i, and 740iL models. Designed to maintain optimal engine coolant flow, this thermostat housing ensures reliable engine performance and temperature control.
- Bypass Plate Diameter: 1.67 inches
- Flange Diameter with Seal: 1.69 inches
- Flange Diameter without Seal: 3.25 inches
- Height from Flange to Bottom: 1.55 inches
- Temperature Rating: 221 degrees Fahrenheit
- Freight Class: 70
Details on the Integrated Thermostat Housing Product Line
The Stant Integrated Thermostat Housing line combines the thermostat and water outlet assembly into a single unit, simplifying installation and improving coolant system reliability. This design reduces potential leak points and streamlines engine cooling system maintenance for BMW vehicles, including the 540i, 740i, and 740iL.
Technical Description of Part Number 49502
Part number 49502 features a 1.67-inch bypass plate diameter that facilitates proper coolant circulation around the thermostat. The flange diameter measures 1.69 inches with the seal installed and 3.25 inches without, ensuring a secure fit within the engine cooling system. The height from flange to bottom is 1.55 inches, providing compatibility with specified BMW models. The thermostat is calibrated to open at 221 degrees Fahrenheit, maintaining engine temperature within optimal operating ranges.
Common Applications and Problem Resolution
- Regulates engine temperature in BMW 540i, 740i, and 740iL models
- Prevents engine overheating by controlling coolant flow
- Replaces faulty or leaking thermostat housings
- Addresses coolant leaks at the thermostat housing flange
- Improves engine warm-up time and temperature stability
Installation Notes and Tips
- Ensure compatibility with BMW 540i, 740i, and 740iL before installation
- Inspect and replace the seal to prevent coolant leaks
- Follow manufacturer torque specifications when securing the flange
- Drain coolant system prior to removal to avoid spills
- Verify thermostat operation after installation by monitoring engine temperature
Quality Assurance and Warranty
Stant manufactures the Integrated Thermostat Housing 49502 to meet OEM specifications for fit and function. This part undergoes rigorous quality control to ensure durability and reliable performance in BMW cooling systems. Warranty coverage details should be confirmed with the original product documentation or supplier.
| Brand | Stant |
| Part Number | 49502 |
| Position | Integrated Thermostat Housing |
| Bypass Plate Diameter (in) | 1.67 |
| Flange Diameter (With Seal) (in) | 1.69 |
| Flange Diameter (Without Seal) (in) | 3.25 |
| Freight Class | 70 |
| Height from Flange to Bottom (in) | 1.55 |
| Temperature (F) | 221 Degrees |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1998 | BMW | 540i | N/A | Temperature rating of 221 degrees.; Integrated Thermostat Housing |
| 1998 | BMW | 740i | N/A | Temperature rating of 221 degrees.; Integrated Thermostat Housing |
| 1998 | BMW | 740iL | N/A | Temperature rating of 221 degrees.; Integrated Thermostat Housing |
| 1997 | BMW | 540i | N/A | Temperature rating of 221 degrees.; Integrated Thermostat Housing |
| 1997 | BMW | 740i | N/A | Temperature rating of 221 degrees.; Integrated Thermostat Housing |
| 1997 | BMW | 740iL | N/A | Temperature rating of 221 degrees.; Integrated Thermostat Housing |
| 1996 | BMW | 740iL | N/A | Temperature rating of 221 degrees.; Integrated Thermostat Housing |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.