When you want to get maximum performance out of your hot rod beast, race rocket or street performance machine and push it to the limits, the engine is forced to work harder to pull more power, creating more excessive heat. To ensure that your vehicle's inner beast works at its peak, it's essential to efficiently cool down the engine bay. The larger the engine is, the more cooling is required to keep temperatures under control. Featuring advanced designs for optimum heat transfer, high-performance engine cooling tune-ups help bring damaging engine temperatures down which is critical for engine performance, reliability and lifespan.

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    • (0 reviews)
      # sp8944
      Chrome Plated Water Neck by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack! All products are...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $13.71 - $32.82
    • (0 reviews)
      # sp9899
      Water Neck by BTP®. This BTP product helps your engine cooling system to ensure maximum performance of your vehicle by providing increased coolant flow preventing your four-wheel friend's engine from overheating. This performance...
      Engineered to prevent your vehicle's engine from overheatingMade from premium materials
      $10.84 - $31.67
    • (0 reviews)
      # sp18693
      Thermostat Housing by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make your vehicle run better. If...
      High quality at an affordable priceBuilt to match your exact requirements
      $67.05
    • (0 reviews)
      # sp8935
      Water Neck by Mr. Gasket®. Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether it’s a simple, plain-Jane thermostat installed where the sun don’t shine or a...
      Brilliant triple-chrome platingPrevent boilovers
      $13.63 - $39.89
    • (0 reviews)
      # sp28744
      Thermostat Housing by CVR Performance®. 90 degrees. This product is made of high-quality materials to serve you for years to come. Designed usig state-of-the-art technology and with customers in mind. It will meet your needs and...
      Built to match your exact requirementsMade from premium materials to endure years of abuse
      $69.01 - $94.67
    • (0 reviews)
      # mpn359113232
      90 Degree Swivel Water Neck by Canton Racing®. Get the most out of your racing experience with Canton Racing. Manufactured using only premium materials and advanced technologies, this product will provide you with the quality and...
      Made from high-grade materialsProvides efficient performance
      $112.00
    • (0 reviews)
      # sp101182
      90 Degree Water Neck by Canton Racing®. Includes stainless steel hardware. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly...
      Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating
      $124.00 - $130.00
    • (0 reviews)
      # sp101187
      Billet Aluminum Racer Water Neck with Filler Top by Canton Racing®. Includes hardware. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with...
      High quality at an affordable priceBuilt to match your exact requirements
      $63.00 - $112.00
    • (0 reviews)
      # sp101188
      Straight Water Neck by Canton Racing®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement product and be...
      Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating
      $30.00 - $77.00
    • (0 reviews)
      # sp101189
      Water Neck Top with Bleeder by Canton Racing®. Quantity: 1. Finish: Black anodized. Material: Aluminum. These bleeder necks come with a petcock and can be used as a replacement top for our water necks. Increase the life of your...
      Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating
      $20.00
    • (0 reviews)
      # sp18684
      360° Swivel Filler Neck by CSR Performance®. Machined from 6061–T6 Billet aluminum and swiveling 360° for easy connection in any position. Our thermostat housing uses O–ring seals eliminating the need for gaskets or messy...
      Designed to help prevent engine overheatingMade with extreme precision and quality in mind
      $130.85 - $151.46
    • (0 reviews)
      # sp18685
      Swivel Thermostat Housing by CSR Performance®. Machined from 6061-T6 Billet aluminum and swiveling 360° for easy connection in any position. CSR thermostat housing uses O-ring seals eliminating the need for gaskets or messy...
      Designed to help prevent engine overheatingMade with extreme precision and quality in mind
      $55.43 - $146.87
    • (0 reviews)
      # sp83123
      360 Degree Low Swivel Water Neck by Meziere Enterprises®. A wide variety of thermostat housing solutions are found in their arsenal. All are aluminum, precision machined and finished to the highest standards.
      High quality at an affordable priceExpertly made from premium materials
      +1
      $129.49
    • (0 reviews)
      # sp83124
      360 Degree Swivel Water Neck by Meziere Enterprises®. A wide variety of thermostat housing solutions are found in their arsenal. All are aluminum, precision machined and finished to the highest standards.
      High quality at an affordable priceExpertly made from premium materials
      +2
      $81.43 - $100.22
    • (0 reviews)
      # sp83126
      75 Degree Water Neck by Meziere Enterprises®. A wide variety of thermostat housing solutions are found in their arsenal. All are aluminum, precision machined and finished to the highest standards.
      High quality at an affordable priceExpertly made from premium materials
      +2
      $125.28 - $150.33
    • (0 reviews)
      # mpn358506352
      Fixed Water Neck with Fittings by Meziere Enterprises®. A wide variety of thermostat housing solutions are found in their arsenal. All are aluminum, precision machined and finished to the highest standards. To keep your engine cool...
      Clean and simple, low profile designAccepts 1.50" slip hose
      $125.28
    • (0 reviews)
      # sp18696
      Officially Licensed GM Coolant Thermostat Housing by Proform®. With Hardware. Finish: Chrome Plated. Material: High-Quality Aluminum. O-Ring Style. Sold Each. If you are looking to enhance your vehicle's performance, then this...
      Officially Licensed GM ProductsCarefully designed to improve the performance of your vehicle
      $22.83 - $23.83
    • (0 reviews)
      # sp18695
      Thermostat Housing by Proform®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $15.02 - $18.95
    • (0 reviews)
      # sp31836
      Swivel Style Aluminum Water Neck by Trans-Dapt®. Made from Aluminum. Includes: Aluminum water neck, o-ring seal and bolts. Trans-Dapt Performance Products Aluminum water necks are available with four different neck angles to meet...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      +2
      $20.31 - $92.62
    • (0 reviews)
      # sp18698
      Thermostat Housing by Sinister Diesel®. This billet aluminum housing replaces the OEM housing which can be lower-quality stamped steel that may not always seal properly after replacing your thermostat. This billet aluminum housing...
      High quality at an affordable priceBuilt to match your exact requirements
      $49.95
    • (0 reviews)
      # sp34154
      Thermostat Housing by Billet Specialties®. 1 Piece. Billet Specialties thermostat housings are precision machined from 6061-T6 billet aluminum and feature a polished or black anodized finish.
      Designed with the latest innovationsMade to ensure a high level of quality
      $34.95 - $99.95
    • (0 reviews)
      # sp35748
      Universal Inlet and Outlet Tube by Be Cool®. Great time-saving components to simplify your radiator installation. These accessories can help you achieve a clean, professional look.
      Made to improve your cooling system efficiencyDesigned to provide greater cooling power
      $28.31 - $49.99
    • (0 reviews)
      # sp18692
      Universal, Filler Neck with O-Ring Gasket by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make your...
      High quality at an affordable priceBuilt to match your exact requirements
      $41.85 - $111.91
    • (0 reviews)
      # mpn358581946
      Radiator Hose Filler by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make your vehicle run better. If...
      Allows Mod Motor Racers to upgrade existing upper radiator hose to steel braided reinforcedBillet Aluminum Water Neck Outlet with -16AN Fitting
      $52.14
    • (0 reviews)
      # mpn358735336
      Manifold Expansion Filler by CSR Performance®. The CSR Manifold Expansion Filler is recommended for dragsters with rear mounted radiators and will help eliminate the problem of air getting into the cooling system. Made of 6061–T6...
      High quality at an affordable priceExpertly made from premium materials
      $172.11
    • (0 reviews)
      # mpn2288386654
      Water Neck Outlet by PRW®. Finish: Polished. Designed utilizing the latest technology, this product by PRW Industries features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $25.65
    • (0 reviews)
      # mpn358951035
      Water Neck Outlet by PRW®. Material: Aluminum. Type: 90 Degree. Designed utilizing the latest technology, this product by PRW Industries features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $26.29
    • (0 reviews)
      # mpn3094313872
      Billet Radiator Neck by PPE®. The routing of multiple turbochargers can be complicated and somewhat bulky, so if you have the need to construct your own radiator overflow tank know that PPE offers their Weld-On Billet Radiator Neck...
      Thoughtfully designed to match your diesel engine needsMade to help enhance the performance of your vehicle
      $22.49
    • (0 reviews)
      # mpn358593639
      Water Crossover Kit by CHI®. Water Crossover Kit 302/351W Clevor. CHI’s water-crossover / bypass housing is the perfect accessory for Chi new range of inlet manifolds, allowing you to easily convert your 8.2” & 9.5” deck...
      High quality at an affordable priceBuilt to match your exact requirements
      $220.31
    • (0 reviews)
      # sp76979
      Lightweight Radiator Support by Steeda Autosports®. Steeda's Lightweight Tubular Front Radiator Support was the first one on the market that allowed you to maintain your front swaybar and reduce weight at the same time! Our...
      Lightweight thin-wall tubingOptional use of swaybar or Z-brace
      $199.95
    • (0 reviews)
      # sp94163
      Natural Aluminum Pipe Bung by Be Cool®. This product is designed to help provide efficient cooling and greatly improve the performance of your vehicle. The part is manufactured by using advanced cooling technology to guarantee...
      Made to improve your cooling system efficiencyDesigned to provide greater cooling power
      $9.99
    • (0 reviews)
      # sp35754
      Universal Natural Aluminum Threaded Bung by Be Cool®. Great time-saving components to simplify your radiator installation. These accessories can help you achieve a clean, professional look.
      Made to improve your cooling system efficiencyDesigned to provide greater cooling power
      $7.99 - $8.99
    • (0 reviews)
      # sp92391
      90 Degree Thermostat Housing by Ford Performance®. Die-Cast aluminum. Radiator hose is 1-1/2" and by-pass hose is 3/4". Same as discontinued Ford Service number F0ZZ-8592-B. This product is made of high-quality materials to serve...
      High quality at an affordable priceBuilt to match your exact requirements
      $80.77
    • (0 reviews)
      # mpn359120001
      Water Header by Dedenbear®. 1 Piece. Water Manifold made from Aluminum. Dedenbear's innovative water header replaces the usual mess of fittings, lines, elbows and tees with a single aluminum casting that weighs only 1 pound - and...
      Dual 3/4 inch NPT threads let coolant feed from either side of the engineDesigned to distribute coolant equally into both sides of the engine
      $134.95
    • (0 reviews)
      # mpn359120002
      Water Header by Dedenbear®. 1 Piece. Water Manifold made from Aluminum. Dedenbear's innovative water header replaces the usual mess of fittings, lines, elbows and tees with a single aluminum casting that weighs only 1 pound - and...
      Dual 3/4 inch NPT threads let coolant feed from either side of the engineDesigned to distribute coolant equally into both sides of the engine
      $134.95
    • (0 reviews)
      # sp83138
      Water Neck Spacer by Meziere Enterprises®. This plate is designed to help you provide a place for extra lines to connect or to provide a place for sensors at the thermostat housing. It is drilled and tapped 3/8" NPT to accept many...
      High quality at an affordable priceExpertly made from premium materials
      +2
      $31.32 - $50.11
    • (0 reviews)
      # sp92628
      Water Neck by Milodon®. These necks are made from extra thick castings and precision ground for a truly flat gasket sealing surface, unlike cheap imported pieces. They are highly polished and chrome plated, supplied with standard...
      High quality at an affordable priceBuilt to match your exact requirements
      $19.95 - $53.95
    • (0 reviews)
      # sp92629
      Water Outlet Restrictors by Milodon®. Set includes one 5/8 in., one 3/4 in., and one 1 in. restrictor plate. In race applications these Water Outlet Restrictors, on Chevys and Fords, replace the thermostat. They work to slow the...
      High quality at an affordable priceBuilt to match your exact requirements
      $5.95
    • (0 reviews)
      # sp16326
      Water Outlet Restrictor Kit by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make your vehicle run...
      High quality at an affordable priceBuilt to match your exact requirements
      $9.51
    • (0 reviews)
      # sp18694
      Water Outlet Gasket by Mr. Gasket®. Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether it’s a simple, plain-Jane thermostat installed where the sun don’t shine or...
      Requires no gasket sealerMade of high quality materials
      $3.12 - $18.88
    • (0 reviews)
      # sp16141
      Hex Thermostat Housing Bolt Kit by ARP®. Nobody likes water leaks. And here’s ARP’s contribution to the solution. These premium grade bolts are engineered to properly engage the manifold threads and resist loosening. They’re...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $5.31 - $18.57
    • (0 reviews)
      # sp35033
      Water Pump and Thermostat Housing Bolt Kit by ARP®. Finish: Polished. Material: Stainless Steel. Quantity: Kit. Package Type: Skin. We have an assortment of premium quality stainless steel and Black Oxide finish 8740 chrome moly...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $42.61 - $47.62
    • (0 reviews)
      # sp34153
      Replacement O-Rings for Thermostat Housing by Billet Specialties®. 2 Pieces. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...
      Designed with the latest innovationsMade to ensure a high level of quality
      $3.95 - $5.95
    • (0 reviews)
      # sp83137
      Water Neck by Meziere Enterprises®. A wide variety of thermostat housing solutions are found in their arsenal. All are aluminum, precision machined and finished to the highest standards.
      High quality at an affordable priceExpertly made from premium materials
      +3
      $40.09 - $55.12
    • (0 reviews)
      # mpn2527058
      Polished 90° Waterneck by Edelbrock®. Degree: 90°. If you are looking for a high-quality replacement part, this product is just the ticket. It was expertly designed by professional engineers using the state-of-the-art equipment...
      High quality at an affordable priceBuilt to match your exact requirements
      $32.32
    • (0 reviews)
      # mpn1723880824
      Filler Tube with Billet Neck by Be Cool®. Great time-saving components to simplify your radiator installation. These accessories can help you achieve a clean, professional look. Be Coolant is an Extended-Life, Super Duty Coolant &...
      Made to improve your cooling system efficiencyDesigned to provide greater cooling power
      $79.99
    • (0 reviews)
      # mpn477870262
      Water Neck Adaptor by March Performance®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...
      Precisely engineered for perfect fit and functionMade with a unique blend of durability and style
      $77.61
    • (0 reviews)
      # mpn477871601
      Water Neck with Polished Adaptor by March Performance®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...
      Precisely engineered for perfect fit and functionMade with a unique blend of durability and style
      $60.80
    • (0 reviews)
      # mpn3822390143
      Water Outlet Restrictor Kit by Canton Racing®. Quantity: 3. Finish: Natural. Material: Steel. The kit includes three restrictor plates with different sized holes. This allows you to fine tune your cooling system for optimum...
      Made to keep your engine running coolImproves your vehicle's performance
      $12.00
    • (0 reviews)
      # mpn4468373777
      0.31" Fiber Water Outlet Gasket by Cometic Gasket®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $1.84
    • (0 reviews)
      # mpn4468246711
      0.47" Fiber Thermostat Housing Gasket by Cometic Gasket®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $2.17
    • (0 reviews)
      # 118578724
      Universal Water Neck by Spectre Performance®. Outlet Size: 1.5". Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack! All...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $15.84 - $24.87
    • (0 reviews)
      # 491923353
      Universal Thermostat Housing by Moroso®. Inlet Size: -12 AN. Material: Billet Aluminum. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality...
      Made from 6061-T6 Billet AluminumThe housing has two -12AN female O-ring inlet ports
      $95.69
    • (0 reviews)
      # 107805819
      Universal Water Neck Bleeder Kit by Moroso®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent...
      High quality at an affordable priceBuilt to match your exact requirements
      $73.28 - $96.80
    • (0 reviews)
      # 77821688
      Universal Water Neck by Earl's Performance®. These filler necks are CNC machined and are ready for welding. They come with a 1/4” barb overflow fitting attached
      High quality at an affordable priceBuilt to match your exact requirements
      $25.74
    • (0 reviews)
      # 263806392
      Universal Inline Thermostat Housing by Meziere Enterprises®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide...
      High quality at an affordable priceExpertly made from premium materials
      $59.09
    • (0 reviews)
      # mpn358506374
      Universal O-Ring Plug by Meziere Enterprises®. This port plug may be used to block off ports that are only temporarily or periodically used. They are included with select water pump models where they offer either driver's or...
      Compatible with pump numbers WP311, WP312, WP306, WP307, WP308Also compatible with many of waterneck numbers
      $18.79
    • (0 reviews)
      # mpn358506345
      Universal Weld-in Filler Water Neck by Meziere Enterprises®. Build your own expansion tank, modify a radiator or solve a myriad of other cooling system problems with their weld-in radiator cap neck. It comes to you fully machined...
      Designed with key attention to detailSupported by outstanding technology
      $24.03
    • (0 reviews)
      # mpn1676095375
      Universal External Billet Thermostat Housing by BDS®. 1 Piece. Remote. Three 3/4" NPT Female Ports. Aluminum. Polished. Designed utilizing the latest technology, this product by BDS features premium quality and will perform better...
      High quality at an affordable priceExpertly made from premium materials
      $92.53
    • (0 reviews)
      # 82368394
      Universal Water Neck by Peterson Fluid Systems®. Necks swivel 360° for exact hose alignment. Viton seals are used internally and the flange is O-Ring sealed. Improvements include hard coat anodizing for improved wear and a...
      High quality at an affordable priceExpertly made from premium materials
      $199.65 - $201.03




    Featured Brands

    Browse our selection of top-of-the-line engine coolant water outlet necks and fillers designed to help you get the most out of your cooling system. Once attached to the thermostat, a premium grade water neck is sure to fine tune your cooling system for maximum performance. From straight, swivel and angled water necks, we've got the finest upgrades for your radiator hose locating needs or dressing up the front of your engine. Performance water necks help clear engine obstacles and allow the hose to be placed to fit to tight spaces.

    Straight water necks are a perfect solution for vehicles where engine inlet and outlet ports are in different locations. These necks allow for routing the radiator hose in the right direction for custom engine cooling applications. Swivel water necks offer greater flexibility when it comes to locating the hose. Featuring a swivel design, these necks provide various radiator hose routing options to attach it in a more convenient direction – placed parallel to the engine, or at a 15 or 45 degree angle. They include mounting bolts for flawless installation and an O-ring seal for improved sealing over paper gaskets for leak-free operation. Swivel water filler necks are available in a choice of attractive finishes, including highly polished or anodized aluminum, chrome and stainless steel that deliver sleek, sharp looks in any engine bay.

    Performance engine coolant water filler necks will come in handy if you don't have space for anything else. Filler necks gathered on our virtual shelves provide unprecedented durability and improved resistance. Designed to go inline in the radiator hose in applications where it's not part of the radiator, the filler neck provides more complete cooling system filling to effectively remove all the air out of it at all times. These necks come in billet aluminum for sharp looks and impeccable strength. Whether you're looking for water outlet necks or fillers, you've come to the right place. We handpick a wide variety of performance engine coolant water necks and fillers that will help your high-performance engine running at its peak to unlock more performance and horsepower with confidence and help overcome limited space issues. Manufactured from first-rate materials, they feature top-grade construction that can withstand extreme changes in temperatures which makes them perfect for use in racing or street applications.

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    Performance Thermostat Housing & Filler Necks Reviews

    Average rating:  5  5 - 10 reviews
    5 of 5
    Cooling Thermostat
    The part has the house fitting sideways! It suppose to be straight up. I had to change radiator bottom hose to a different position.
    PPosted by Plinio (Los Angeles, CA) / April 14, 2017
    1993 Toyota Tercel
    Was this review helpful for you? Yes
    View More
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