2000 Thermostats, Housings & Fillers Cooling & Heating - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Redhorse Performance 4910 Series Thermostat Housing Assemblies 4910-383-20-3

Water Neck, Aluminum, Red Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, With Filler Neck for Radiator Cap, Chevy, Small/Big Block, Each

Part Number: HSE-4910-383-203

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Mishimoto Thermostats MMTS-RX8-04L

Thermostat, Mechanical, Standard-flow, 169 degrees, Copper/Stainless Steel, Mazda, Each

Part Number: MIO-MMTS-RX8-04L

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Trans-Dapt Performance Aluminum Water Necks 6007

Water Neck, Aluminum, Polished, 90 Degree, Chevy, Big/Small Block, Each

Part Number: TRD-6007

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

March Performance Thermostat Housings BTH-306-08

Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Satin Black Anodized, -20 AN Outlet Size, Ford, 289/302/351 Small Block Windsor, Each

Part Number: MCH-BTH-306-08

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

Redhorse Performance 4910 Series Thermostat Housing Assemblies 4910-302-20-5

Water Neck, Aluminum, Clear Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Ford, Small Block, Each

Part Number: HSE-4910-302-205

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Redhorse Performance 4910 Series Thermostat Housing Assemblies 4910-302-20-2

Water Neck, Aluminum, Black Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Ford, Small Block, Each

Part Number: HSE-4910-302-202

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

March Performance Thermostat Housings BTH-204-05

Water Neck, Thermostat Housing, Billet, Big/Small Block, Chevy, 75 Degree, Each, O-Ring, Polished

Part Number: MCH-BTH-204-05

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Redhorse Performance 4910 Series Thermostat Housing Assemblies 4910-350-20-3

Water Neck, Aluminum, Red Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Chevy, Small/Big Block, Each

Part Number: HSE-4910-350-203

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Four Seasons Outlet and Thermostat Housing Kits for 2000-2002 LS, S-TYPE - 86045

Engine Coolant Water Outlet Housing Kit, Outlet and Thermostat Housing Kit with Thermostat

Part Number: FSS-86045

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

CVR Thermostat Housings TSH4CL

Water Neck, 90 degree, Billet Aluminum, Clear Anodized, Buick, Chevy, GMC, Pontiac, Chevy Small Block, Each

Part Number: CVS-TSH4CL

5.0 out of 5 stars ( 2 )

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Dorman Coolant Filler Necks for 2000-2004 DAKOTA, 2000-2003 DURANGO - 902-305

Coolant Filler Neck, Clamp-On, Plastic, Black, Dodge, Each

Part Number: RNB-902-305

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Allstar Performance Chevy Aluminum Water Necks ALL30371

Water Necks and Thermostat Housings, Allstar Performance Chevy Aluminum Water Necks, 90 Degree, Swivel, Aluminum, Black, Chevy, Each

Part Number: AAF-ALL30371

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

Canton Racing Billet Aluminum Water Necks 80-022

Canton Racing Billet Aluminum Water Necks 80-022

Water Neck, Billet Aluminum, Natural, Straight Up, 1.50 in. Inlet Diameter, Chevy, 4.8L LS, 5.3L LS, 6.0L LS

Part Number: CTR-80-022

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

CVR Thermostat Housings TSH6ABL

Water Neck, Swivel, Billet Aluminum, Blue Anodized, O-ring, 90 degree, -16 AN, Chevy, GMC, Chrysler, Dodge

Part Number: CVS-TSH6ABL

Not Yet Reviewed

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Hybrid Racing Low Temp Thermostats HYB-LTT-01-05

Thermostat, Mechanical, Low Temp, 154 degrees F Opening Temperature, Stainless Steel, for use on Acura®, for use on Honda®, Each

Part Number: HYB-HYBLTT0105

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

MotoRad Thermostats 281-180

Thermostat-180 Degrees

Part Number: SNN-281-180

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

MotoRad Thermostats 5228-180JV

Thermostat, 180 Degrees F, Stainless Steel, Each

Part Number: SNN-5228-180JV

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

ACDelco GM Genuine Parts Engine Coolant Thermostats 24507563

Thermostat, Mechanical, OE, 195 degrees, Standard-flow, Each

Part Number: ADO-131-124

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Moroso Billet Aluminum Filler Necks 63468

Water Neck, Billet Aluminum, Black, Radiator Cap Filler, Chevy, Big/Small Block, Each

Part Number: MOR-63468

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 20, 2026 if ordered today

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Estimated Ship Date: Mar 20, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Moroso Manifold Filler Necks 63465

5 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/23/2026

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Philadelphia Racing Products Thermostat Housings PRP-6271

Thermostat Housing, Aluminum, Red Anodized, Swivel, 90 Degree, 1 1/2 in. Outlet, Chevy, Each

Part Number: PGP-PRP-6271

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Philadelphia Racing Products Thermostat Housings PRP-6121

Thermostat Housing, Aluminum, Clear Anodized, Swivel, 90 Degree, 1 1/2 in. Outlet, Chevy, Each

Part Number: PGP-PRP-6121

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Philadelphia Racing Products Thermostat Housings PRP-6122

Thermostat Housing, Aluminum, Clear Anodized, Swivel, 90 Degree, 1 3/4 in. Outlet, Chevy, Each

Part Number: PGP-PRP-6122

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Philadelphia Racing Products Thermostat Housings PRP-6422

Thermostat Housing, Aluminum, Blue Anodized, Swivel, 90 Degree, 1 3/4 in. Outlet, Chevy, Each

Part Number: PGP-PRP-6422

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Philadelphia Racing Products Thermostat Housings PRP-6423

Thermostat Housing, Aluminum, Blue Anodized, Swivel, 90 Degree, -12 AN Outlet, Chevy, Each

Part Number: PGP-PRP-6423

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

PRW Water Necks 5234685

Thermostats, Mechanical,GM LS Series Cast Aluminum 90° Water Neck Thermostat (GM 5.7L, 6.0L, 6.2L), as-cast,Temp 82°C/180°F

Part Number: PQX-5234685

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today