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Motorad
Fail-SafeMotorad 7226-180 Engine Coolant Thermostat
| Brand | Motorad 7226-180 |
|---|---|
| Sealing Flange Outside Diameter | 2.12 |
| Gasket Or Seal Included | No |
| Jiggle Pin Weep Hole | No |
| Bypass Diameter | 0.93 in |
| Bypass Length | 1.08 in |
| Flange Thickness | 0.06 in |
| Installation Tool Included | No |
| Temperature | 180 deg. f |
| Temperature (Degree) | 180 |
| Product line | Fail-Safe |
| Fits | Cadillac · 65 vehicles |
OE supplier quality. Made with OEM materials and processes for dependable cooling performance.
Copper case construction. Responds quickly to coolant temperature changes for precise engine control.
Air relief valve included. Helps purge trapped air for smoother cooling system operation.
Cross-references Dayco 72618, Motorad 7226-180 and 97226180 for the same application. See all 6.
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Motorad Fail-Safe Thermostat 7226-180
The Motorad Fail-Safe 7226-180 engine coolant thermostat is built for precise temperature control in demanding cooling systems. This 180 degree thermostat uses a copper case and wax compound for quick response to coolant temperature changes, helping maintain stable engine operating temperature in supported Cadillac applications.
Compatible with select 1968-1984 Cadillac Commercial Chassis, Fleetwood, DeVille, Eldorado, and Seville applications, the Motorad Fail-Safe line is engineered as an OE-style replacement for vehicles that need dependable coolant flow control. Part number 7226-180 is also a direct reference point for service matching and catalog lookup.
Key Features
- 180 degree Fahrenheit thermostat setting for controlled engine warm-up and operating temperature
- Copper case and wax compound for fast reaction to coolant temperature changes
- Offset design with air relief valve where applicable
- Manufactured to OEM specifications and processes
- OE supplier construction using OEM-quality materials and safety standards
- Sealing flange outside diameter: 2.12 in
- Bypass diameter: 0.93 in
- Bypass length: 1.08 in
- Flange thickness: 0.06 in
Product Details
The Motorad Fail-Safe product line focuses on thermostat protection and consistent cooling-system operation. This 7226-180 thermostat is designed for Cadillac cooling system service where accurate temperature regulation matters, including 1968-1984 Cadillac Commercial Chassis and Fleetwood, 1968-1981 Cadillac DeVille, 1968-1978 Cadillac Eldorado, and 1980-1981 Cadillac Eldorado and Seville applications. The Fail-Safe design adds an overheating response that locks open after a severe temperature event, giving technicians a service-oriented replacement option for Cadillac DeVille, Cadillac Fleetwood, and related models.
This part cross-references Dayco 72618 for the same application.
Common Issues This Part Addresses
- Engine running too cool or too hot due to thermostat wear
- Delayed coolant flow response during temperature changes
- Cooling system instability in older Cadillac applications
- Thermostat failure after overheating events
- Need for OE-style replacement during cooling system service
Installation Notes
- Verify the thermostat temperature rating and housing dimensions before installation.
- Inspect the mating surfaces and replace the seal or gasket if required by the application, since no gasket or seal is included.
- Confirm bypass dimensions and flange fitment during service on Cadillac Commercial Chassis, Fleetwood, DeVille, Eldorado, or Seville models.
- Follow the vehicle service manual for coolant refill and air bleeding procedures.
Quality Assurance
Motorad manufactures this thermostat with OEM-quality materials and OE-supplier production standards. It is built to OEM specifications and processes for consistent fit and temperature control in supported Cadillac cooling systems.
This part fits 65 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1984 | Cadillac | Commercial Chassis | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1984 | Cadillac | Fleetwood | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1983 | Cadillac | Commercial Chassis | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1983 | Cadillac | Fleetwood | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1982 | Cadillac | Commercial Chassis | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1982 | Cadillac | Fleetwood | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1981 | Cadillac | Commercial Chassis | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1981 | Cadillac | DeVille | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1981 | Cadillac | Eldorado | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1981 | Cadillac | Fleetwood | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1981 | Cadillac | Seville | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1980 | Cadillac | Commercial Chassis | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1980 | Cadillac | DeVille | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1980 | Cadillac | Eldorado | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1980 | Cadillac | Fleetwood | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1980 | Cadillac | Seville | 6.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1980 | Cadillac | Seville | 5.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1979 | Cadillac | Commercial Chassis | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1979 | Cadillac | DeVille | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1979 | Cadillac | DeVille | 5.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1979 | Cadillac | Fleetwood | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1978 | Cadillac | Commercial Chassis | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1978 | Cadillac | DeVille | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1978 | Cadillac | Eldorado | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1978 | Cadillac | Fleetwood | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1977 | Cadillac | Commercial Chassis | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1977 | Cadillac | DeVille | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1977 | Cadillac | Eldorado | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1977 | Cadillac | Fleetwood | 7.0L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1976 | Cadillac | Commercial Chassis | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1976 | Cadillac | DeVille | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1976 | Cadillac | Eldorado | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1976 | Cadillac | Fleetwood | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1975 | Cadillac | Commercial Chassis | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1975 | Cadillac | DeVille | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1975 | Cadillac | Eldorado | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1975 | Cadillac | Fleetwood | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1974 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1974 | Cadillac | DeVille | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1974 | Cadillac | Eldorado | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1974 | Cadillac | Fleetwood | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1973 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1973 | Cadillac | DeVille | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1973 | Cadillac | Eldorado | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1973 | Cadillac | Fleetwood | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1972 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1972 | Cadillac | DeVille | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1972 | Cadillac | Eldorado | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1972 | Cadillac | Fleetwood | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1971 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1971 | Cadillac | DeVille | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1971 | Cadillac | Eldorado | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1971 | Cadillac | Fleetwood | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1970 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1970 | Cadillac | DeVille | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1970 | Cadillac | Eldorado | 8.2L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1970 | Cadillac | Fleetwood | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1969 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1969 | Cadillac | DeVille | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1969 | Cadillac | Eldorado | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1969 | Cadillac | Fleetwood | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1968 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1968 | Cadillac | DeVille | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1968 | Cadillac | Eldorado | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| 1968 | Cadillac | Fleetwood | 7.7L | V8 | N/A | Engine Coolant Thermostat with Fail-Safe design for overheating at 180F, locks open, with alternative option.; Fail-Safe |
| No rows match your filter. | ||||||
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 72618Motorad — 7226-18097226180NIP7226-180SS180-6227