Four Seasons Engine Cooling Fan Switch,Engine Cooling Fan Temperature Switch P/N:37383
Put accurate temperature sensing back in charge of your cooling fan with the Four Seasons Engine Cooling Fan Switch, part number 20034. It is a direct-fit replacement for the 1995-1996 Toyota Camry, 1995-1999 Toyota Avalon and 1998-2005 Toyota Sienna. Engine details for each vehicle are listed in the Buyer's Guide tab.
This engine-mounted cooling fan temperature switch senses engine temperature. It helps control when the cooling fan circuit is switched on, so the fan can respond as the engine warms up.
Four Seasons designs and tests its products to deliver years of trouble-free operation. The company draws on more than 50 years of mobile A/C experience.
Signs this switch may need replacing include a cooling fan that never turns on, a fan that runs all the time, a rising temperature gauge, or coolant seeping around the switch. These symptoms can have other causes, so diagnose the cooling system before you replace any part.
Interchange: 1550759 · 207983 · 11120034 · 19144837 · 19188146 · A87983 · 50846 · 8942830130 · SW1437
This part cross-references / interchanges with the following part numbers:
What does the Four Seasons 20034 cooling fan switch do?
It is an engine-mounted temperature switch. It senses engine temperature and helps control when the cooling fan circuit is switched on.
Does this switch fit the 1998-2005 Toyota Sienna?
Yes. It is listed as a direct-fit replacement for the 1998-2005 Toyota Sienna. Check the Buyer's Guide tab for engine details.
What is the switch made of?
It has a brass body for accurate temperature sensing and a zinc-coated terminal that helps resist corrosion.
Are seals included with the switch?
Yes. The switch comes with the gaskets, O-rings or seals needed to replace it properly.
What are signs a cooling fan switch may be failing?
Common signs are a fan that never turns on, a fan that runs constantly, rising engine temperature, or a coolant leak at the switch. Diagnose the cause first, because other faults can cause the same symptoms.
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.