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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 45

Thermostat Housings, Coolant Hose Flange Kit, Includes 3 Hoses, 1 Flange, 1 Gasket, 1 O-Ring, 1 Sensor, 1 Lock Pin, 1 Thermostat, Audi, 2.0L, Kit

Part Number: RIN-CHS0648

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Coolant Hose Flange Kit, Thermostat Included, Sensor Included, Plastic, Black, Audi, Kit

Part Number: RIN-CHS0646

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

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Estimated Ship Date: Dec 5, 2025 if ordered today

Thermostat Housings, Coolant Hose Flange Kit, Includes 2 Hoses, 1 Flange, 1 Seal, 1 O-Ring, 1 Sensor, 1 Lock Pin, 1 Thermostat, Volkswagen, Kit

Part Number: RIN-CHS0647

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

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Estimated Ship Date: Dec 5, 2025 if ordered today

Thermostat Housings, Coolant Hose Flange Kit, Includes 1 Flange, Hardware, Plastic, Black, Freightliner, Mercedes-Benz, Kit

Part Number: RIN-CHS0777

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

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Estimated Ship Date: Dec 5, 2025 if ordered today

Water Neck, Swivel, Billet Aluminum, Clear Anodized, O-ring, 90 degree, for 1.5 in. Hose, Ford, Small Block

Part Number: CVS-TSH7CL

3.36 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Water Neck, Swivel, Billet Aluminum, Black Anodized, O-ring, 90 degree, for 1.5 in. Hose, Ford, Small Block

Part Number: CVS-TSH7BK

2.67 out of 5 stars ( 9 )

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

Thermostat Housing, Swivel, 90 Degree, Aluminum, Black Anodized, O-ring Sealing Style, Fits 1 1/2 in. Radiator Hose, Ford, Small Block Windsor, Each

Part Number: BSP-BLK90620

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Radiator Coolant Hose Flange, Engine Coolant Flange

Part Number: FSS-86232

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Water Neck, Billet Aluminum, Clear Anodized, Swivel, 90 Degree, Ford, 260-302/351W, Each

Part Number: CSI-9111C

3.6 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Water Neck, Aluminum, Black Anodized, Straight Up, -16 AN Male Threads, Chevrolet, Each

Part Number: JOE-36050

Not Yet Reviewed

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Water Neck, Billet Aluminum, Polished, 90 Degree, Ford, Small Block, Each

Part Number: CTR-80-056

3.57 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Water Neck, 15 Degree, O-Ring, Steel, Black, Ford, Small Block, Each

Part Number: EDL-48143

3.62 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Water Necks and Thermostat Housings, 90 degree, Swivel, Aluminum, Polished, 1.500 in. Outlet Size, Ford, 289/302/351 Small Block Windsor, Each

Part Number: MCH-BTH-302-05

Not Yet Reviewed

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Water Neck, 15 Degree, O-Ring, Aluminum, Polished, Ford, Small Block, Each

Part Number: EDL-4814

2.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Water Neck, Billet Aluminum, Polished, Straight Up, Ford, Each

Part Number: CTR-80-036

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Water Neck, Billet Aluminum, Clear Anodized, Swivel, -20 AN, 90 Degree, Ford, 260-302/ 351W, Each

Part Number: CSI-9110AN20C

Not Yet Reviewed

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Water Necks and Thermostat Housings, 90 degree, Swivel, Aluminum, Satin Black Anodized, 1.500 in. Outlet, Ford, 289/302/351 Small Block Windsor, Each

Part Number: MCH-BTH-302-08

Not Yet Reviewed

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Water Necks and Thermostat Housings, 45 degree, Swivel, Aluminum, Satin Black Anodized, 1.500 in. Outlet, Ford, 289/302/351 Small Block Windsor, Each

Part Number: MCH-BTH-303-08

Not Yet Reviewed

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Water Neck, Aluminum, Black Anodized, Straight Up, -20 AN Male Threads, Chevrolet, Each

Part Number: JOE-36060

Not Yet Reviewed

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Water Neck, Billet Aluminum, Red Anodized, O-Ring, 90 Degree, 1.5 in., Ford, Small Block, 351W, Each

Part Number: CVS-TSH7R

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Water Neck, Billet Aluminum, Black, Straight Up, O-ring Sealing Style, Chevy, Chrysler, Dodge, Plymouth, Each

Part Number: MOR-63422

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Polished, 1.500 in. Outlet Size, Ford, 289/302/351 Small Block Windsor, Each

Part Number: MCH-BTH-301-05

Not Yet Reviewed

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Water Necks and Thermostat Housings, 90 degree, Swivel, Aluminum, Clear, Polished, 1.500 in. Outlet Size, Ford, 289/302/351 Small Block Windsor, Each

Part Number: MCH-BTH-302

Not Yet Reviewed

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Water Neck, Aluminum, Black Anodized, Straight Up, -16 AN Male Threads, 3/8 in. NPT Ports, Chevrolet, Each

Part Number: JOE-36000

Not Yet Reviewed

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Water Neck, Swivel, Billet Aluminum, Black Anodized, O-ring, 90 degree, -16 AN, Ford, Small Block, Each

Part Number: CVS-TSH7ABK

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

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