Gates Engine Coolant Water Outlet P/N:CO34997
Gates CO34978 engine coolant water outlet for the 2009-2010 Hyundai Sonata 4-cylinder 2.4L and other vehicles is a thermostat housing that carries engine coolant out through its outlet.
Coolant seeping around the housing, a falling coolant level or a rising temperature gauge can mean this water outlet is worn or cracked, though the thermostat or a coolant hose can also be behind them. The 2009-2010 Hyundai Sonata 4-cylinder 2.4L takes one.
This water outlet is designed to fit and perform like the original on the 2009-2010 Hyundai Sonata 4-cylinder 2.4L and the 2009-2010 Kia Optima 4-cylinder 2.4L.
Fit and size
Build and materials
One engine coolant water outlet with two integrated seals.
Interchange: 256202G600 · CH1094
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
Does the Gates CO34978 fit the 2009-2010 Kia Optima 4-cylinder 2.4L?
Yes. Gates CO34978 fits the 2009-2010 Kia Optima 4-cylinder 2.4L, and it also fits the 2009-2010 Hyundai Sonata 4-cylinder 2.4L.
Does this coolant water outlet come with a gasket or seals?
This listing is one thermostat housing with two integrated seals. No separate gasket is included.
What is the Gates CO34978 water outlet made of?
Gates CO34978 is a plastic thermostat housing with three bolt holes. Its materials are meant to prevent warping and resist corrosion.
How can I spot a leaking thermostat housing?
With the engine off and cool, look for coolant residue, crusting or cracks around the housing. A low coolant level or overheating can also be signs; a shop can pressure-test the cooling system.
Is 256202G600 the same part as Gates CO34978?
Yes. 256202G600 is listed as an interchange number for Gates CO34978, along with CH1094.
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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.