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No cooling system is complete without a coolant filler neck. Speedway Motors stocks all types of coolant filler necks to best suit your specific application. From reproduction restoration necks to inline filler necks to custom radiator fill necks and block thermostat housings you can be sure to find the correct filler neck without breaking the bank. Complete the cooling system on your next race car, daily driver, or restoration project with help from Speedway Motors and coolant filler necks!

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Universal Fit, 2.00" Overall Height, Aluminum, Natural

Overall Height: 2.00"

Overall Length: 4.47"

Inside Diameter: 1.18"

Outside Diameter: 1.50"

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Universal Fit, 2.23" Overall Diameter, Aluminum

Overall Diameter: 2.23"

Inside Diameter: 1.12"

Outside Diameter: 1.87"

Filler Neck Height: 1.03"

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Universal Fit, Aluminum, 1.5" Inlet Size

Material Type: Aluminum

Inlet Size: 1.5"

Inlet Length: 2.5"

Outlet Length: 3"

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Universal Fit, 1.51" Tube O.D., 1.37" Tube I.D.

Tube O.D.: 1.51"

Tube I.D.: 1.37"

Tube Length: 6.18"

Filler Neck Height: 1.38"

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Universal Fit, 2.12" Outside Diameter, Brass, Chrome

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Outside Diameter: 2.12"

Base Diameter: 3.00"

Filler Neck Height: 2.60"

Thread Pitch: 2"-18

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$44.99
$52.96

Universal Fit, 2.00" Overall Height, Natural

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Overall Height: 2.00"

Overall Length: 4.47"

Thread Pitch: 1/8" NPT

Finish: Natural

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Universal Fit, 2.11" Outside Diameter, Brass, Polished

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Outside Diameter: 2.11"

Base Diameter: 2.96"

Filler Neck Height: 2.57"

Thread Pitch: 2"-18

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Universal Fit, Aluminum

Material Type: Aluminum

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