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Summit Racing™ aluminum water necks swivel 360 degrees to give you various radiator hose routing options. They come with bolts and a highly polished or anodized aluminum finish for a sharp appearance.
( 210 )
$25.99
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$42.99
Summit Racing offers replacement thermostats for thousands of vehicles. They're offered in a variety of styles, materials, flow rates, temperature ratings, and more. A reliable thermostat is essential to your cooling system and overall performance—kicking in precisely when your engine needs it. Order the model best suited for your application.
( 360 )
$23.99
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$49.99
Canton Racing billet weld-on fill necks are ideal for use wherever a heavy-duty, custom application filler neck is required. They feature 6061-T6 billet 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.
( 8 )
$28.00
Made from cast aluminum for a smooth look, these Summit Racing™ radiator water filler necks are designed to go inline in the radiator hose. They include two 1 1/2 in. outlets and a 1/8 in. NPT overflow. They use a standard radiator cap and accept a 1 1/2 in. radiator hose.
( 22 )
$38.99
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$44.99
Summit Racing™ water neck spacers are designed to move the thermostat and housing up 1 in. higher to help clear high intake manifolds. The added ports allow the addition of extra sensors and water temperature sending units. These aluminum spacers are fully machined to ensure a great fit and are available in polished or black anodized finishes.
( 6 )
$31.99
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.
( 131 )
$20.99
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$35.99
JOES Racing Products water neck outlets are compact and lightweight. These aluminum units have a no. 16 or no. 20 fitting for your radiator hose, and the base has an O-ring for sealing to your intake manifold. JOES also offers a ported version designed with two 3/8 in. NPT ports for additional water lines.
( 1 )
$37.95
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$39.95
AFCO Racing aluminum thermostat housings adapt to your upper hose position. They feature polished aluminum construction and allow for 360 degree rotation for perfect hose alignment. These housings use an O-ring for a quality seal to the intake, and bolts are included. Choose the water neck style angle that best suits your application.
( 34 )
$52.99
The flange on Canton Racing's universal replacement filler necks accepts a standard radiator cap and fits Chevy intakes. They can also be used as replacement tops for Canton Racing water necks.
( 5 )
$40.00
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$45.00
Philadelphia Racing Products billet swivel thermostat housings make the connection from your upper radiator hose to your engine. Each water neck is fully CNC-machined from 6061-T6 billet aluminum and able to swivel 360 degrees. The housings come complete with stainless steel mounting hardware and O-ring for positive sealing. All units will accept any standard thermostat and one of Philadelphia Racing's O-ring style water pump fittings. Order the size and finish you prefer for your application.
( 5 )
$45.79
JOES Racing Products Thermo spacers let you add more for better cooling. Thermo spacers are made from strong 6061-T6 aluminum and the bases are fitted with O-rings for sealing to your intake manifold. Now you can plumb additional lines to your heads, install a water temperature sending unit, and a water temp gauge in one spacer. Get cool with JOES Racing Products Thermo spacers.
Not Yet Reviewed
$43.95
JOES Racing Products radiator filler necks are high-quality filler necks machined from billet aluminum. JOES Racing Products radiator filler necks make the perfect choice for any fabricators building their own tanks or radiators.
Not Yet Reviewed
$25.95
Racing Automotive Group offers polished aluminum water necks for a wide range of year/make and engine applications. The swivel manifold filler necks easily adjust the angle. These replacements come with an O-ring seal and hardware for installation.
Not Yet Reviewed
$49.99
Canton Racing universal outlet fittings replace the standard water necks on Chevy intakes so that a -16 AN fitting and a steel braided hose can be used instead of the normal radiator hoses. You can depend on Canton Racing for all of your cooling needs.
Not Yet Reviewed
$39.00
AFCO Racing offers a wide range of replacement parts for nearly every facet of your vehicle—including billet aluminum weld-on radiator filler necks. These high-quality components will weld to any aluminum radiator. A 1/8 in. NPT removeable barb is included. Maintain your cooling system with factory-style parts from AFCO.
Not Yet Reviewed
$45.99
In racing, precision is everything--from the driver's skill to each component under the hood. A racing engine thermostat isn't just about maintaining a lower temperature; it must endure the relentless demands of high-flow, high-pressure environments that standard parts simply can't handle. MotoRad Spec-R racing thermostats are engineered to offer rapid response and precise temperature control under extreme conditions, allowing optimal engine performance without compromise. They are manufactured to provide durability, withstand intense vibrations, and maintain reliability at every stage, ensuring that racers get consistent performance, lap after lap. Run your vehicle with maximum cooling efficiency; select the Spec-R racing thermostat best suited to your vehicle's needs. Features: * Black oxide coating for high temperature tolerance, corrosion resistance and life-long durability * Lower than OE opening temperature for cooler engine operation, resulting in more power * Specially formulated Spec R heat element mixture for faster response time * Proprietary gasket composition to withstand high-pressure/high performance cooling systems Note: Gaskets/seals may or may not be included.
( 1 )
$20.99
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$37.99
On Sale
A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability of your Toyota cooling system with a Mishimoto Low-Temperature Racing Thermostat and housing! They're designed as a direct-fit replacement for your aging stock unit. The Mishimoto thermostats have a lower activation temperature (71 degrees C/160 degrees F) compared to the factory thermostat (82 degrees C/180 degrees F). The lower activation temperature allows coolant to flow through the engine earlier, which yields and maintains lower engine temperatures. These thermostats are ideal for use in warmer climates, on vehicles making more power than stock, or under extreme towing/driving conditions. The stock-style housing with O-ring will provide a proper seal and installs easily. Order the model recommended for your application.
Not Yet Reviewed
$36.95
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$48.95
$33.26
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$44.06
WEHRS thermostat risers are used when running the remote lines to the rear of the intake to prevent vapor pockets, or if you need more clearance at the front of the motor. These thermostat housing spacers are constructed from quality materials, and are available in several configurations to match any need. Order the WEHRS thermostat riser suited to fit your application.
( 6 )
$28.99
Howe inline filler necks are radiator accessories designed to help complete your race car's cooling system. These aluminum radiator hose filler necks complete your cooling system.
( 44 )
$34.99
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$40.99
Moroso billet aluminum filler necks allow you to install a variety of bolt-on style filler necks or block-off plates, offering cooling system flexibility for both race and street applications. The base locates the filler neck at the highest point, to bleed off air on cars with low-mount radiators. They include a machined port for installing a water temperature sending unit, and two ports to plumb return lines on popular aftermarket heads. And, to give you versatile mounting options--these filler necks can be flipped 180 degrees for either a left or right water hose outlet location.
( 9 )
$54.99
Fluidyne weld-on fill necks are ideal when you want a high performance piece for your radiator or surge tank. Available in a standard and mini size, they feature aluminum construction for durability in racing, street, or custom applications.
( 2 )
$23.00
MotoRad Spec-R️ integrated housing thermostats are perfect for high performance and racing applications. Designed and manufactured by a leading OE thermostat supplier to withstand high-pressure and high-horsepower demands, they are made with quality materials and carry the Spec-R logo. Keep your vehicle running at maximum cooling efficiency, whether on the track or on the street; select the Spec-R thermostat with integrated housing best suited to your vehicle's needs. Features: * Black oxide coating for high temperature tolerance, corrosion resistance and life-long durability * Lower than OE opening temperature for cooler engine operation, resulting in more power * Specially formulated Spec R heat element mixture for faster response time * Proprietary gasket composition to withstand high-pressure/high performance cooling systems
Not Yet Reviewed
$52.99
On Sale
Mr. Gasket high-performance thermostats are designed to resist large variations in coolant pressures that can occur at high rpms. Under these conditions, coolant temperature and pressure fight for control of the thermostat, keeping it from opening at its designed temperature. These balanced high-performance thermostats have brass-and-copper construction, and open at the right temperature regardless of engine rpm.
( 236 )
$29.11
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$31.46
$21.83
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$28.31
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