Availability
Showing In Stock Items. Show All 48 Items.
Chevrolet Performance offers the parts that you need to keep your cooling system running right.
( 161 )
$21.85
On Sale
Mr. Gasket chrome plated water necks feature an O-ring style seal to prevent water leaks. Precision die-cast for a great fit, they're first polished to a high luster, then beautifully chrome plated for lasting beauty. These water necks come complete with an O-ring and mounting bolts.
( 64 )
$29.11
$21.83
Summit Racing™ water necks are made from cast steel with durable chrome plating, providing your engine bay with good looks and a long life. They include a paper gasket and bolts for a complete leak-free installation.
( 130 )
$15.99
—
$20.99
Some essential parts are just prone to wearing out due to what they're exposed to. Howe radiator filler necks help keep you from blowing a hole in your budget with an expensive radiator replacement. These universal billet aluminum necks are available in weld-on and weld-in versions to fit your specific application. Save your wallet and your radiator with a Howe radiator filler neck. Order the size designed to fit your specific model.
( 2 )
$13.99
Summit Racing™ billet weld-on fill necks are ideal for use wherever a heavy-duty, custom application filler neck is required. They feature 6061 T-6 aluminum construction for durability in racing or street applications. These fill necks include 1/8 in. NPT to 3/8 in. barbed fittings for the plumbing of an expansion tank.
Not Yet Reviewed
$11.99
Edelbrock water necks are a great way to finish off your engine. They feature an O-ring design base for an improved seal, which also allows for removal without requiring a new gasket. The necks fit any 1 1/2 in. diameter outlet hose, include mounting hardware, and are available in a variety of styles, materials, and finishes.
( 104 )
$19.95
—
$22.95
BluePrint Engines offers water necks and thermostat housings for a variety of Chevrolet V8 small block and big block engine applications from 1955 and up. These engine coolant housings are available in numerous configurations, manufactured from factory materials and specifications to ensure proper fitment and long-lasting performance. Order the model recommended for your vehicle.
( 2 )
$18.95
Allstar Performance designed these cast aluminum 45 degree water necks to fit small block Ford applications. Finished with a lustrous chrome plating, Allstar Performance chrome plated water necks include an O-ring for sealing the base flange and two hex head bolts.
( 18 )
$17.99
Four Seasons water necks are offered in a wide selection for most popular import and domestic vehicles. These water necks include the necessary gaskets or O-rings where applicable.
( 249 )
$10.99
—
$20.99
These Proform aluminum water necks are a great accent for your engine. They're available in several styles with either neoprene O-ring gaskets or regular gaskets to eliminate leakage.
( 24 )
$16.99
—
$17.99
ACDelco water necks and thermostat housings fit your vehicle just like the originals. When you need to restore the efficiency of your water inlet/thermostat housing, these quality replacements fix your issues with leak-free performance and peace of mind. The units are available in a variety of configurations for applications from the 1960s and up. You can be assured that not only the fit, but also the function will be just as expected. Replace your water necks with one of the same from ACDelco.
( 30 )
$17.99
Allstar Performance Chevy aluminum water necks are designed to fit most Chevy V8 engines, will accept most standard thermostats, and swivel (up to a full 360 degrees, depending on the model) to simplify connection of left- or right-hand radiator hoses to the engine. Their black anodized finish helps protect against corrosion, along with stainless steel hardware and an O-ring for sealing the base to the engine. Get the performance you need and the looks you want with an assist from the Allstar Performance Chevy aluminum water neck best suited for your application.
( 48 )
$17.99
On Sale
Finish off your intake manifold with one of these Weiand swivel water necks. They'll provide you with good looks, excellent quality, and precise fit at a great price. The water necks are manufactured from high-quality aluminum and come in your choice of polished, chrome plated, or black powdercoat finishes. Weiand water necks are also available in four different outlet configurations—so you can get the right fitment for your cooling system. All water necks include an O-ring seal, plate, and hardware for easy installation.
( 42 )
$36.31
—
$39.11
$19.97
—
$21.51
Classic Performance water necks are functional beauties for your classic Chevy. They attach to the intake manifold, which allows the upper radiator hose to connect to the radiator. They are beautifully polished to look good under the hood.
Not Yet Reviewed
$17.99
Clearance
Spectre Performance water necks are available for a variety of applications. Many are designed around OEM specifications, are offered in different materials and finishes, neck angles, and swivel and non-swivel types. Spectre also offers water necks with bypass hose connections. Most will include bolts and O-ring where applicable.
( 39 )
$31.99
$19.50
The components you need to keep your ride cool and running its best! Dorman radiator filler necks are designed as OE replacements for your specific application, so you can be assured of quality and a perfect fit! Dorman radiator filler necks are offered for a variety of vehicles. You can count on Dorman for the replacement parts that you need for your cooling system.
( 3 )
$15.99
DeWitts offers chrome water necks for a variety of engine applications from the 1950s, '60s, '70s, and '80s. These diecast aluminum replacements for your engine's cooling system house the thermostat and provide a connection point for the upper radiator hose. The water necks include an O-ring seal and are designed to improve radiator hose routing, ensuring a reliable leak-free seal.
Not Yet Reviewed
$16.99
Continental coolant filler necks are designed to transfer glycol-based coolants to and from the radiator, as well as through other components in your vehicle's coolant system. They're made from quality material to be durable enough to withstand the extreme changes in temperature that frequently can cause them to leak. Continental coolant filler necks will provide leak-free performance, a consistent flow of coolant, and a lesser chance of overheating.
Not Yet Reviewed
$16.99
Replace your stock thermostat housing with new parts from Dorman. These quality replacement components offer solution upgrades for your coolant system, and they are available for several applications. Don't wait for your engine to overheat or for the check engine light to illuminate--upgrade to reliable, OE-fitting thermostat housings from Dorman.
( 176 )
$10.99
—
$20.99
Mopar Replacement water neck housings offer high-quality, along with an original equipment fit and function to keep your favorite Chrysler, Dodge, Plymouth, or Jeep rolling down any road you choose to travel. For a direct fit and reliable operation, service your vehicle with genuine Mopar Replacement water necks maintain the legendary performance you've come to expect.
( 5 )
$11.99
—
$19.50
Replace your stock thermostat with new parts from Dorman. These quality components offer solution upgrades for your coolant outlets. Dorman offers thermostats for several applications. Don't wait for your engine to overheat or for the check engine light to illuminate--upgrade to reliable, OE-fitting thermostats from Dorman.
( 29 )
$11.99
—
$24.99
URO Parts thermostat housings and coolant flanges are an important part of their line of cooling system parts that also includes thermostat housing caps, hose connectors, and seats. They offer aluminum thermostat housings that are an upgrade from weak plastic OE components that frequently warp, crack, and leak due to high underhood temperatures. URO Parts thermostat housings and coolant flanges meet or exceed OEM standards, including those of prestigious European auto makers.
( 1 )
$11.99
—
$20.99
Replace your leaking thermostat housings with ones from Crown Automotive. They offer a quality selection to fit several applications. Keep your coolant where it belongs and avoid overheating issues with one of Crown's thermostat housings.
( 3 )
$11.99
—
$22.99
Rein Automotive thermostat housings provide the fit and performance that the original manufacturer intended, if not better, thanks to their use of quality materials. The included thermostats (where applicable) are temperature-calibrated to have a consistent and precise response that suits the cooling system needs of each vehicle. Rein Automotive thermostat housings originate in molds cast directly from the OEM parts to meet the strict tolerances of the factory specifications, ensuring a smooth installation. Dozens of models are available for vehicles from the 1980s and up.
Not Yet Reviewed
$20.99
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
