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Calorstat TH6497.80J Engine Coolant Thermostat
Engine Coolant Thermostat for BMW V8 Applications
Calorstat TH6497.80J is a standard engine coolant thermostat built for BMW cooling system service where precise opening temperature matters. It opens at 80 C / 176 F and includes an O-ring seal for a direct replacement-style installation.
- Standard engine coolant thermostat for cooling system temperature control
- Opening temperature: 80 C / 176 F
- Includes gasket or seal
- Seal type: O-ring
- Seal material: rubber
- Sealing flange outside diameter: 3.26 in.
- Height between flanges: 1.33 in.
Fitment and Application Details
Compatible with select BMW V8 models, including Fits 1995 BMW 530i, N/A; Fits 1995 BMW 540i, N/A; Fits 1995 BMW 740i, N/A; Fits 1995 BMW 740iL, N/A; Fits 1994-1995 BMW 850CSi, N/A; Fits 1988-1994 BMW 750iL, N/A; and Fits 1993-1994 BMW 850Ci, N/A. This part cross-references TX3680D for the same application.
Part number TH6497.80J is also referenced in cooling system service for BMW 530i, BMW 540i, BMW 740i, and BMW 850Ci applications where the thermostat opening temperature must match the original specification.
What This Thermostat Helps Address
- Engine running too cool or too warm due to thermostat wear
- Delayed coolant flow regulation during warm-up
- Temperature fluctuation from a sticking thermostat
- Cooling system service on BMW V8 models with an 80 C thermostat spec
- Seal leakage at the thermostat housing interface
Installation Notes and Tips
Verify the thermostat opening temperature and housing dimensions before installation. Clean the sealing surface thoroughly, inspect the housing for corrosion or distortion, and replace the O-ring seal if the mating surface shows wear. Confirm the part number TH6497.80J matches the vehicle’s cooling system specification before reassembly.
Quality Assurance
Calorstat thermostats are built for cooling system service with application-specific dimensions and a sealed design. The included rubber O-ring seal supports proper housing sealing when installed on the correct BMW application.
| Brand | Calorstat |
|---|---|
| Part Number | TH6497.80J |
| Sealing Flange Outside Diameter | 3.26 |
| Height Between Flanges | 1.33 |
| Type | Standard |
| Gasket Or Seal Included | Yes |
| Seal Type | O-ring |
| Seal Material | Rubber |
| 9813 | 1.69 |
| 9841 | 1 |
| 9844 | 1 |
| 9852 | 1 |
| 9943 | Yes |
This part fits 15 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | BMW | 530i | 3.0L | V8 | N/A | Opening Temp: 80 C / 176 F |
| 1995 | BMW | 540i | 4.0L | V8 | N/A | Opening Temp: 80 C / 176 F |
| 1995 | BMW | 740i | 4.0L | V8 | N/A | Opening Temp: 80 C / 176 F |
| 1995 | BMW | 740iL | 4.0L | V8 | N/A | Opening Temp: 80 C / 176 F |
| 1995 | BMW | 850CSi | 5.6L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1994 | BMW | 750iL | 5.0L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1994 | BMW | 850Ci | 5.0L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1994 | BMW | 850CSi | 5.6L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1993 | BMW | 750iL | 5.0L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1993 | BMW | 850Ci | 5.0L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1992 | BMW | 750iL | 5.0L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1991 | BMW | 750iL | 5.0L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1990 | BMW | 750iL | 5.0L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1989 | BMW | 750iL | 5.0L | V12 | N/A | Opening Temp: 80 C / 176 F |
| 1988 | BMW | 750iL | 5.0L | V12 | N/A | Opening Temp: 80 C / 176 F |
* 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.