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Maintain Consistent Cooling at 180 Degrees
Edelbrock 8604 is a high-flow thermostat for application-specific cooling systems that use a 53 mm sealing flange. Its 180 degree start-to-open temperature supports consistent coolant control in compatible performance applications.
Key Features
- High-flow design for consistent cooling in compatible performance applications
- Brass and copper valve assembly with a stainless steel body
- OEM style bolt-on replacement design
- No jiggle pin weep hole
- Gasket or seal is not included
Fitment
| Application | Requirement |
|---|---|
| Application specific | Cooling system designed for a 53 mm thermostat sealing flange |
Verify the required thermostat diameter and opening temperature for the vehicle before ordering.
Specifications
| Detail | Value |
|---|---|
| Manufacturer | Edelbrock |
| Manufacturer Part Number | 8604 |
| Type | High Flow |
| Start To Open Temperature | 180 degrees F |
| Sealing Flange Outside Diameter | 53.0 mm |
| Body Material | Stainless steel |
| Valve Assembly Material | Brass and copper |
| Gasket Or Seal Included | No |
| Jiggle Pin Weep Hole | No |
| UPC | 085347086047 |
What's Included
- One Edelbrock 8604 high-flow thermostat
About Edelbrock
Edelbrock produces performance engine and cooling components. The Edelbrock 8604 combines a durable stainless steel body with a brass and copper valve assembly.
FAQ
What is the 8604?It is a high-flow thermostat with a 53 mm sealing flange and a 180 degree start-to-open temperature.
Is this thermostat universal?No. It is application specific. Confirm that the cooling system uses a 53 mm thermostat before ordering.
What temperature does it begin to open?It begins to open at 180 degrees F.
What is the sealing flange diameter?The sealing flange outside diameter is 53.0 mm.
What materials are used?The valve assembly uses brass and copper, and the body is stainless steel.
Is a gasket or seal included?No. Obtain the correct gasket or seal for the application separately.
Does it have a jiggle pin weep hole?No. This thermostat does not have a jiggle pin weep hole.
Is it an OEM style replacement?Yes. It uses an OEM style bolt-on replacement design for compatible applications.
Installation Instructions
- Allow the engine to cool completely and follow the vehicle service manual before opening the cooling system.
- Drain coolant to the level required for thermostat housing removal.
- Remove the thermostat housing and the existing thermostat.
- Clean the sealing surfaces and verify that replacement 8604 matches the required 53 mm size and 180 degree temperature.
- Install the thermostat in the orientation specified by the vehicle service manual with the correct new gasket or seal.
- Reinstall the housing and tighten the fasteners to the vehicle manufacturer's specification.
- Refill and bleed the cooling system according to the vehicle service manual, then check for leaks and normal operating temperature.
California Proposition 65 Warning
WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
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