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Thermostat Housing and Water Necks

Thermostat Housing and Water Necks

Thermostat housing, water neck, water outlet, coolant housing…they’re all names for the same thing. This component is where the upper radiator hose plugs...

Thermostat housing, water neck, water outlet, coolant housing…they’re all names for the same thing. This component is where the upper radiator hose plugs in, and it also contains your mechanical thermostat. Grab a stock replacement to replace a leaky or broken one, dress up your engine with a chrome or anodized finish, or use a 360° swiveling model for versatility on your custom cooling system.

Top Brands

Our powerful search tools make it easy to find the right water neck from manufacturers like Meziere, Dorman, Mr. Gasket, Four Seasons, Trans-Dapt, ACDelco, and so many more.

Thermostat housing, water neck, water outlet, coolant housing…they’re all names for the same thing. This component is where the upper radiator hose plugs in, and it also contains your mechanical thermostat. Grab a stock replacement to replace a leaky or broken one, dress up your engine with a chrome or anodized finish, or use a 360° swiveling model for versatility on your custom cooling system.

Top Brands

Our powerful search tools make it easy to find the right water neck from manufacturers like Meziere, Dorman, Mr. Gasket, Four Seasons, Trans-Dapt, ACDelco, and so many more.

Part Groups

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Rein Automotive Coolant Hose Flange Kits

Rein Automotive coolant flange kits with hose and thermostat are OE-quality replacements made up of direct-fitting premium material components. They focus on all of the parts surrounding the replacement of the cracking, leaking, swelling or deteriorating cylinder head coolant junction flange, including the flange, thermostat, temperature sensor, heater and/or radiator hoses, and associated gaskets and seals. Repeated thermal cycling of the plastic coolant flange leads to its deformation and coolant leaking. This replacement coolant flange is made from virgin OE-type resin for added durability, and the included hose(s) are made from OE-type rubber compound with OE-type quick-connect hose end fittings. Replacing leaking and failing cooling system components and performing a proper coolant flush at the same time will ensure a long life of the vehicle's cooling system. Order the kit recommended for your vehicle.

5.0 out of 5 stars ( 2 )

$44.99

$145.99

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