Availability

- In Stock Items. Ships Today. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Section
- Engine Blocks & Accessories
- Oiling Systems
Brand
- Rein (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- World Products (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Model
Make/Engine
Water Neck Style
- Remote mount (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Stock (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Color
- Aluminum (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Black (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Sealing Style
- Gasket (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- O-ring (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Water Neck Inlet Size
- -12 AN (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Stock (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Water Neck Outlet Size
- -12 AN (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Quantity
- Sold as a kit. (1)
- Sold individually. (1)
Price Range
- $20-$50 (1)
- $250-$500 (1)

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.

Showing In Stock Items. Show All 4 Items.