Automotive Cooling & Heating Parts

When you make engine modifications for more power, power-robbing heat increases—keeping cool is the key to maximum performance! Summit Racing has everything you need...

When you make engine modifications for more power, power-robbing heat increases—keeping cool is the key to maximum performance! Summit Racing has everything you need to offset that extra heat, including high performance radiators and oil coolers, electric fans, high-flow electric water pumps, and thermostats. We also have radiators and coolers for everything from stock replacements to street rods and other custom applications, plus flex fans, wiring kits, and radiator caps. If your heater or air conditioner has seen better days (or if your vehicle never had one!), we can help you out with heater cores, air conditioners,...

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Summit Racing™ Aluminum Water Necks SUM-371101

Water Neck, Cast Aluminum, Polished, O-Ring, 90-Degree, Chevy, Big/Small Block, Each

Part Number: SUM-371101

4.6 out of 5 stars ( 55 )

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Summit Racing™ Aluminum Water Necks SUM-371100

Water Neck, Cast Aluminum, Polished, O-Ring, 45-Degree, Chevy, Big/Small Block, Each

Part Number: SUM-371100

4.53 out of 5 stars ( 100 )

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Billet Specialties Thermostat Housings BLK90320

Water Neck, Billet Aluminum, Black Anodized, 75 Degree, Chevy, Big/Small Block, Each

Part Number: BSP-BLK90320

4.77 out of 5 stars ( 35 )

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Mr. Gasket Water Necks 2670BK

Water Neck, Aluminum, Black Anodized, Swivel, 60 Degree, Chevrolet, LS, Each

Part Number: MRG-2670BK

4.25 out of 5 stars ( 8 )

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Mr. Gasket Chrome Plated O-Ring Water Necks 2661

Water Neck, Aluminum, Chrome Plated, O-Ring, 45 Degree, Chevy, Big/Small Block, Each

Part Number: MRG-2661

4.5 out of 5 stars ( 36 )

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Chevrolet Performance Thermostat Housings 10108470

Water Neck, Cast Aluminum, Natural, Chevy, Big/Small Block V8, Each

Part Number: NAL-10108470

4.82 out of 5 stars ( 134 )

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Summit Racing™ Aluminum Water Necks SUM-370998

Water Neck, Thermostat Housing, Cast Aluminum, Polished, 60 Degree, Swivel, Chevrolet, LS, Each

Part Number: SUM-370998

3.92 out of 5 stars ( 12 )

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Billet Specialties Thermostat Housings 90320

Billet Specialties Thermostat Housings 90320

Water Neck, Billet Aluminum, Polished, 15 Degree, Chevy, Big Block, Small Block, Each

Part Number: BSP-90320

4.94 out of 5 stars ( 34 )

Estimated Ship Date: Today

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Summit Racing™ Aluminum Water Necks SUM-371100B

Water Neck, Cast Aluminum, Black Powdercoated, O-Ring, 45-Degree, Chevy, Big/Small Block, Each

Part Number: SUM-371100B

4.06 out of 5 stars ( 18 )

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Edelbrock Water Necks 4817

Water Neck, Aluminum, Polished, O-Ring, 45 degree, Swivel, Chevrolet, Each

Part Number: EDL-4817

4.35 out of 5 stars ( 48 )

Estimated Ship Date: Today

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ACDelco GM Genuine Parts Water Necks and Thermostat Housings 12674634

Water Necks and Thermostat Housings, Stock Style, Plastic, Black, O-ring, Cadillac, Chevy, 6.2L Gen V, Each

Part Number: ADO-15-11113

5.0 out of 5 stars ( 5 )

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Summit Racing™ Weld-On Billet Aluminum Fill Necks SUM-380162

Water Neck, Billet Aluminum, Radiator Style, Natural, Each

Part Number: SUM-380162

Not Yet Reviewed

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ACDelco GM Genuine Parts Water Necks and Thermostat Housings 12600172

Water Neck, O-ring Sealing Style, Aluminum, Natural, 186 degree Thermostat, Buick, Cadillac, Chevy, GMC, Each

Part Number: ADO-15-11057

4.44 out of 5 stars ( 18 )

Estimated Ship Date: Today

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Summit Racing™ Chrome Water Necks SUM-G3801-3

Water Neck, O-Ring, Steel, Chrome, 15 Degree, Chevy, Big/Small Block, Each

Part Number: SUM-G3801-3

4.27 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Summit Racing™ Aluminum Water Necks SUM-371101B

Water Neck, Cast Aluminum, Black Powdercoated, O-Ring, 90-Degree, Chevy, Big/Small Block, Each

Part Number: SUM-371101B

3.57 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Allstar Performance Chevy Aluminum Water Necks ALL30173

Water Neck, Aluminum, Polished, O-Ring, 15 Degree, Chevy, Big/Small Block/V6, Each

Part Number: AAF-ALL30173

4.67 out of 5 stars ( 42 )

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Summit Racing™ Chrome Water Necks SUM-377806

Water Neck, Steel, Chrome Plated, Straight Up, Mopar, Small Block LA, Polysphere, Big Block B/RB/Hemi, Each

Part Number: SUM-377806

3.6 out of 5 stars ( 35 )

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Scott Drake Water Necks C5OE-8592-A

Thermostat Housing, Aluminum, Natural, Gasket Seal, Ford, 289,.302, Each

Part Number: SDK-C5OE-8592-A

4.3 out of 5 stars ( 54 )

Estimated Ship Date: Today

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Mr. Gasket Water Necks 9713

Water Neck, Steel, Chrome Plated, 90 Degree, Ford, Small Block Windsor, Each

Part Number: MRG-9713

2.61 out of 5 stars ( 28 )

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Spectre Performance Water Necks 4933

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

Part Number: SPE-4933

4.58 out of 5 stars ( 12 )

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Vibrant Performance Radiator Filler Necks 20982

Radiator Filler Necks, Weld-on, Billet Aluminum, Natural, 1.650 in. I.D., Each

Part Number: VPE-20982

Not Yet Reviewed

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Drag Race Solutions Water Filler Necks 3300-001B

Water Neck, Offset Adapter Style, Billet Aluminum, Black Powdercoated, Chevy, Each

Part Number: CHH-3300-001B

Not Yet Reviewed

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Moroso Manifold Filler Necks 63420

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

Part Number: MOR-63420

4.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Scott Drake Swivel Water Necks B-8592

Water Neck, Swivel, 45 degree, O-ring Sealing Style, Billet Aluminum, Polished, Ford, Small Block Windsor, Each

Part Number: SDK-B-8592

3.67 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Summit Racing™ Water Necks SME-2200-11

Water Neck, Billet Aluminum, Black Powdercoated, 90 Degree, Chevy, Big/Small Block, Each

Part Number: SME-2200-11

3.9 out of 5 stars ( 10 )

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