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2000 Thermostats, Housings & Fillers
Showing In Stock Items. Show All 138 Items.
Summit Racing™ Aluminum Water Necks
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.
( 212 )
$25.99
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$42.99
FlowKooler Robertshaw Series High Performance Thermostats
FlowKooler Robertshaw high performance thermostats are designed to resist large variations in coolant pressures that can occur at high rpm. 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 feature brass-and-copper construction and will open at the right temperature, regardless of engine rpm.
( 156 )
$38.99
Edelbrock High Performance Thermostats
Edelbrock high performance thermostats are designed to ensure consistent cooling in high performance applications. Edelbrock thermostats feature brass and copper valve assemblies with stainless steel bodies for durability. They are bolt-on OE-style replacements and are available to fit many popular domestic and import applications. They are available with160, 180, and 190 degree F ratings.
( 47 )
$22.95
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$24.95
Billet Specialties Thermostat Housings
Billet Specialties thermostat housings not only look good, but they also get rid of leaky paper gaskets thanks to their O-ring seal design. You can choose the conventional vertical housing or the high-tech 360 degree swivel housing. They're available straight-up or with a 0, 15, or 45 degree angle and come complete with stainless hardware.
( 243 )
$66.95
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$154.95
Chevrolet Performance Thermostat Housings
Chevrolet Performance offers the parts that you need to keep your cooling system running right.
( 161 )
$22.19
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$40.44
On Sale
Mr. Gasket Water Necks
Mr. Gasket offers replacement water necks in a variety of styles, materials, finishes, sizes, and angles. Water necks help to hold the vehicle's thermostat in place as it opens and closes—to regulate the flow of coolant through your engine. The opening in the water neck created by the thermostat allows coolant to flow from the radiator back to the engine. Order the model recommended for your vehicle.
( 119 )
$65.29
$35.59
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$76.05
Summit Racing™ Thermostats
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.
( 361 )
$5.99
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$49.99
On Sale
Mr. Gasket Chrome Plated O-Ring Water Necks
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.
( 65 )
$23.51
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$29.84
$21.16
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$26.86
On Sale
Mr. Gasket LS Thermostats
Mr. Gasket offers these high-quality thermostats for GM LS series automobile and light truck engines that utilize a separate thermostat and water neck. They're available in 160 and 180 degree temperatures to suit your engine application.
( 25 )
$37.66
$33.89
Edelbrock Water Necks
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.
( 105 )
$19.95
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$49.95
ACDelco GM Genuine Parts Water Necks and Thermostat Housings
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.
( 32 )
$12.99
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$90.99
On Sale
Scott Drake Water Necks
Clean up your cooling system area with a Scott Drake water neck. These water necks are manufactured using quality materials, ensuring a proper fit.Paint it Ford engine blue to match original, leave natural or polish it to compliment any engine compartment.
( 86 )
$31.66
$23.29
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$28.49
Allstar Performance Chevy Aluminum Water Necks
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.
( 50 )
$17.99
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$99.99
Canton Racing Billet Aluminum Racer Water Necks with Filler Top
Canton Racing lightweight Racer water necks with filler tops are machined from billet aluminum. A compact modular design allows the body to be flipped so that the -16 AN outlet fitting can face left or right. These water necks feature a flange filler top, which accepts a standard radiator cap, top and bottom O-ring seals, a 1/2 in. NPT rear port for a temperature sender, and two 3/8 in. NPT ports for cooling lines. Hardware is included.
( 2 )
$139.00
On Sale
Scott Drake Swivel Water Necks
Scott Drake swivel water necks are machined from billet aluminum. Their 2-piece design allows the neck to fully rotate to perfectly fit your particular application. These exclusive Scott Drake water necks were designed for classic car applications that require a 45 degree angle. They include mounting hardware and rubber O-ring seals to ensure a leak-proof installation.
( 9 )
$101.95
$91.75
Moroso Manifold Filler Necks
Moroso offers manifold filler necks in a variety of styles, materials, and finishes—for applications from 1955 and up. These replacements locate the filler at the highest point to bleed off air on cars with low-mount radiators. The filler necks can be located on either the left or right side of the vehicle. They include 1/2 in. NPT fittings for the installation of a water temperature sending unit, and two 1/4 in. NPT fittings for return lines on popular aftermarket cylinder heads.
( 20 )
$47.99
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$160.99
BluePrint Engines Thermostats
BluePrint Engines offers replacement thermostats for a variety of Chevrolet and Ford vehicle and engine applications from the 1950s and up. These economical parts are recommended for SBC, BBC, and SBF apps (not for GM LS/LT engines). They will also work with BPP10108470 GM waternecks. Ensure proper operation of your cooling system with a new thermostat from BluePrint.
( 2 )
$16.99
Summit Racing™ Water Necks
Made from investment cast aluminum for a smooth look, these Summit Racing™ water necks include two 1/4 in. NPT outlets, one 1/2 in. NPT outlet, and a 1/8 in. NPT overflow. They use a standard radiator cap, accept 1 1/2 in. radiator hose, and include gaskets and mounting hardware. They come in your choice of either a natural or black powdercoated finish.
( 22 )
$103.99
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$113.99
CSR Thermostat Housings
CSR thermostat housings are constructed from CNC-machined billet 6061-T6 aluminum, with a variety of anodized color options. These water necks are available for 1 1/4 in., 1 1/2 in., or -16 AN fitting hose connections. The flange is sealed at the manifold with an O-ring, eliminating the gasket. Stainless steel hardware is included. Order the housing designed for fitment with your vehicle and engine application.
( 35 )
$66.95
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$155.95
March Performance Thermostat Housings
March Performance thermostat housings are available in several styles and finishes covering a wide range of vehicle engine applications. Each housing is CNC-machined from 6061 T-6 aluminum and available polished, black anodized, or clearcoated. Most styles include mounting hardware and an O-ring for a clean seal. The 1.5 in. radiator hose neck swivels inside of base for perfect routing. March Performance thermostat housings are compatible with OEM and numerous aftermarket thermostats. Choose the one designed for your application.
( 11 )
$49.99
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$134.99
Summit Racing™ Water Neck Spacers
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 )
$32.99
Moroso Thermostat Spacers
Moroso thermostat spacers make fixing fitment issues a snap. The billet aluminum spacers raise the thermostat and add ports for water lines to the cylinder heads. The machined O-ring groove on the intake side ensures an excellent seal making installation easy and headache-free.
( 8 )
$48.99
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$49.99
Meziere Coolant Manifolds
Meziere coolant manifolds are designed to allow for the efficient cooling of your engine. By collecting coolant from both ends of each cylinder head, they provide uniform cooling while helping to eliminate dangerous hot spots.
( 3 )
$166.83
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$418.83
ACDelco Engine Coolant Thermostat Housings
ACDelco engine coolant thermostat housings are GM-recommended replacements for your vehicle's worn or damaged original equipment. The inline housing holds the thermostat and serves as a connection point for the radiator hose and inlet or outlet, and may also include ports for sensors or switches. These high-quality replacements are manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life that you expect from General Motors.
( 5 )
$37.99
