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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.

Individual Parts

Results 1 - 25 of 69

Engine Coolant Outlet Flange, WATER OUTLET

Part Number: BCK-147-0103

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Volkswagen, Each

Part Number: BCK-147-0091

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, Lexus, Toyota, Each

Part Number: BCK-147-0086

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Volkswagen, 2.0L, Each

Part Number: BCK-147-0031

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Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

Water Neck, Stock Style, Black, Volkswagen, 1.9L Diesel, Each

Part Number: BCK-147-0009

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Volkswagen, 1.8L, Each

Part Number: BCK-147-0043

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, Toyota, 2.7L, Each

Part Number: BCK-147-0092

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Audi, 1.8L, Each

Part Number: BCK-147-0057

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, for use on Honda®, 1.7L, Each

Part Number: BCK-147-0074

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Mazda, Each

Part Number: BCK-147-0071

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, Toyota, 3.4L, Each

Part Number: BCK-147-0083

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Audi, Volkswagen, Each

Part Number: BCK-147-0019

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

WATER FLANGE

Part Number: BCK-147-0051

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, Lexus, Toyota, Each

Part Number: BCK-147-0079

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, Lexus, Toyota, Each

Part Number: BCK-147-0087

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Scion, Toyota, Each

Part Number: BCK-147-0089

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Engine Coolant Outlet Flange, WATER FLANGE

Part Number: BCK-147-0100

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

WATER FLANGE

Part Number: BCK-147-0106

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Volkswagen, Each

Part Number: BCK-147-0062

Not Yet Reviewed

Estimated Ship Date: Aug 20, 2025 if ordered today

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Estimated Ship Date: Aug 20, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, Lexus, Toyota, Each

Part Number: BCK-147-0082

Not Yet Reviewed

Estimated Ship Date: Aug 20, 2025 if ordered today

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Estimated Ship Date: Aug 20, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Volkswagen, 1.9L Diesel, Each

Part Number: BCK-147-0005

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, Upper, Audi, 1.8L, Each

Part Number: BCK-147-0059

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, for use on Honda®, 3.0L, 3.5L, Each

Part Number: BCK-147-0073

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, for Nissan, 2.5L, Each

Part Number: BCK-147-0075

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Water Necks and Thermostat Housings, Stock Style, Aluminum, Natural, Lexus, Toyota, Each

Part Number: BCK-147-0078

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

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