Hayden Engine Cooling Fan Controller,Engine Cooling Fan Controller-Universal P/N:3647
Keep your electric cooling fan cycling on cue with the Hayden Engine Cooling Fan Controller 3653 — the switch that senses engine temperature and signals the electric fan to run when it's needed. It's a direct-fit replacement for the listed applications, including the 1975-1978 and 1983-1987 Dodge Charger, 1989-2003 Hyundai Sonata, 1992-2003 Hyundai Elantra, and many other vehicles — see the Buyer's Guide tab for the full list.
As a temperature-sensing switch, it monitors engine temperature and controls when the electric cooling fan turns on and off. If a failed controller is the cause of a fan that won't run or runs constantly, this replaces it — diagnose the cause before ordering. Backed by more than 45 years of Hayden cooling experience.
Interchange: CWK733653 · 7709553 · 226203 · 733653 · 77566 · 16769 · 36348 · SUMG4959
This part cross-references / interchanges with the following part numbers:
What does the Hayden 3653 fan controller do?
It's a temperature-sensing switch that signals your vehicle's electric cooling fan to turn on and off based on engine temperature, using brass construction for accurate temperature sensing.
Is the 3653 the right Charger switch for a 1983-1987 Dodge Charger?
Yes — it's listed for the 1975-1978 and 1983-1987 Dodge Charger, among many other applications. Confirm your exact year and model in the Buyer's Guide tab before ordering.
Is this the Sonata switch for a 1989-2003 Hyundai Sonata?
The 3653 is cataloged for the 1989-2003 Hyundai Sonata. Check the Buyer's Guide tab to confirm your specific vehicle before ordering.
What are signs this switch may need replacing?
If a faulty controller is the cause, the electric fan may not turn on, may run constantly, or the engine may run hot. Diagnose the underlying cause before replacing the switch.
Does it come with seals?
Yes — it contains the gaskets, O-rings or seals needed to properly install the replacement.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.