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Street Race Truck More... The Toolbox

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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Speedway Weld-On Billet Aluminum Radiator Filler Neck

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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Inline Die Cast Filler Neck, 1.5 Inch Hose

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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Inline Fabricated Filler Neck, 1 1/2 Inch Hose

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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Aluminum Radiator Weld-On Inlet/Outlet Neck Kit w/ Petcock

Universal Fit, Aluminum, 2.5" Inlet Length

Material Type: Aluminum

Inlet Size: 1.5"

Inlet Length: 2.5"

Outlet Length: 3"

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Model T Filler Neck, Chrome

Universal Fit, 2.12" Outside Diameter, Brass, Chrome

Video Available

Outside Diameter: 2.12"

Base Diameter: 3.00"

Filler Neck Height: 2.60"

Thread Pitch: 2"-18

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Model T Filler Neck, Brass

Universal Fit, 2.11" Outside Diameter, Brass, Polished

Video Available

Outside Diameter: 2.11"

Base Diameter: 2.96"

Filler Neck Height: 2.57"

Thread Pitch: 2"-18

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