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.

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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.

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.

Showing In Stock Items. Show All 21 Items.

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Results 1 - 16 of 16

Mr. Gasket Chrome Plated O-Ring Water Necks 2662

Water Neck, Steel, Chrome Plated, O-Ring, 45 Degree, Ford, 260-302/351W, Each

Part Number: MRG-2662

3.96 out of 5 stars ( 27 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Trick Flow® Clevor Water Crossover Kits TFS-51600600

Trick Flow® Clevor Water Crossover Kits TFS-51600600

Thermostat Housing Crossover, Aluminum, Ford, 351W, Cleveland Heads, Kit

Part Number: TFS-51600600

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Billet Specialties Thermostat Housings 90620

Water Neck, Billet Aluminum, Polished, 90 Degree, Ford, 260-302/351W, Each

Part Number: BSP-90620

3.65 out of 5 stars ( 23 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

CSR Thermostat Housings CSR 9111C

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: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Proform Aluminum Water Necks 66211

Water Neck, Aluminum, Chrome Plated, 45 Degree, Ford, 289/302/351W, Each

Part Number: PRO-66211

3.63 out of 5 stars ( 8 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

CVR Thermostat Housings TSH7R

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: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

CSR Thermostat Housings CSR 9110AN20C

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

Part Number: CSI-9110AN20C

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

CSR Thermostat Housings CSR 9110AN16C

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

Part Number: CSI-9110AN16C

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

CSR Thermostat Housings CSR 9110C

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

Part Number: CSI-9110C

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Trans-Dapt Performance Chrome Water Necks 9440

Water Neck, Zinc Alloy, Chrome Plated, O-Ring, 45 Degree, Ford, 221-302/351W, Each

Part Number: TRD-9440

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

CVR Thermostat Housings TSH7ACL

Water Neck, Billet Aluminum, Clear Anodized, O-Ring, 90 Degree, 16 AN, Ford, Small Block, 351W, Each

Part Number: CVS-TSH7ACL

Not Yet Reviewed

Estimated Ship Date: Apr 2, 2026 if ordered today

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Estimated Ship Date: Apr 2, 2026 if ordered today

Meziere Water Necks WN0023S

Water Neck, Billet Aluminum, Black Anodized, 15 Degree, Ford, 221-302/351W, Each

Part Number: MEZ-WN0023S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

March Performance Thermostat Housings BTH-304

Water Neck, Thermostat Housing, Ford, Small Block 289, 302, 351W, Billet, 75 Degree, Two Piece, O-Ring, Each, Clear Coat

Part Number: MCH-BTH-304

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

March Performance Thermostat Housings BTH-304-08

Water Neck, Thermostat Housing, Ford, Small Block 289, 302, 351W, Billet, 75 Degree, Two Piece, O-Ring, Each, Black

Part Number: MCH-BTH-304-08

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

March Performance Thermostat Housings BTH-304-05

Water Neck, Thermostat Housing, Ford, Small Block 289, 302, 351W, Billet, 75 Degree, Two Piece, O-Ring, Each, Polished

Part Number: MCH-BTH-304-05

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

United Pacific Water Necks and Thermostat Housings 110347

water neck, CHROME FORD 289/302/351W 45 DEGREE UP WATER NECK

Part Number: UPD-110347

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

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Estimated Ship Date: Feb 13, 2026 if ordered today

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