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Street Race Truck More... The Toolbox

Top off your radiator with a new radiator cap from Speedway Motors! No matter if you're looking for fashion or function, we've got you covered with beautiful chrome, stainless and brass caps, as well as, stock steel caps. We carry radiator caps from the cooler leaders like AFCO, C&R Radiators and Mr Gasket, so you can rest easy knowing you're getting the best cap possible. No matter what pressure rating you need, you can be we'll have it in stock and ready to ship today!

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Speedway High Pressure Radiator Cap, 29-31 Lbs

Universal Fit, 2.47" Overall Diameter, Steel

Overall Diameter: 2.47"

Material Type: Steel

Finish: Zinc Plated

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Speedway High Pressure Radiator Cap, 22-24 Lbs

Universal Fit, 2.47" Overall Diameter, Steel

Overall Diameter: 2.47"

Pressure Rating: 22-24 lbs

Material Type: Steel

Finish: Zinc Plated

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Stant 10393 High Pressure Racing Radiator Cap, 28-32 Lbs

Universal Fit, 2.625" Overall Height, Steel

On Sale

Overall Height: 2.625"

Overall Diameter: 2.50"

Pressure Rating: 28-32 lbs

Material Type: Steel

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High Pressure Radiator Cap, 20 Lbs

Universal Fit, 2.47" Overall Diameter, Steel

Video Available

Overall Diameter: 2.47"

Pressure Rating: 20 lbs

Material Type: Steel

Finish: Zinc Plated

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AFCO High Pressure Radiator Cap: 29-31 lbs.

Universal Fit, 29-31 lbs Pressure Rating, Steel

Pressure Rating: 29-31 lbs

Material Type: Steel

Finish: Zinc Plated

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Stant 10372 High Pressure Racing Radiator Cap, 21-25 Lbs

Universal Fit, 2.625" Overall Height, Steel

On Sale

Overall Height: 2.625"

Overall Length: 3.14"

Overall Diameter: 2.625"

Pressure Rating: 21-25 lbs

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Speedway Safety Locking Radiator Cap, 28-32 Lbs.

Universal Fit, 3.07" Overall Length, Steel, Zinc Plated

Overall Length: 3.07"

Overall Diameter: 32.59"

Pressure Rating: 28-32 lbs

Material Type: Steel

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Hex Chrome Radiator Cap, 15 Lbs

Universal Fit, 2.63" Overall Diameter, Steel, Chrome

Overall Diameter: 2.63"

Pressure Rating: 15 lbs

Material Type: Steel

Finish: Chrome

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Round Chrome Radiator Pressure Cap, 15 Lbs

Universal Fit, 2.39" Overall Diameter, Steel, Chrome

Overall Diameter: 2.39"

Pressure Rating: 15 lbs

Material Type: Steel

Finish: Chrome

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1930-1931 Model A Flying Quail Radiator Cap

30-31 Ford Model A, 3.50" Overall Height, Zinc, Chrome

Overall Height: 3.50"

Overall Length: 4.75"

Overall Diameter: 3.00"

Material Type: Zinc

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1932 Ford Replacement Radiator Cap, Chrome Finish

1932 Ford Model B, 1.13" Overall Height, Zinc, Chrome

Overall Height: 1.13"

Overall Diameter: 3.63"

Material Type: Zinc

Finish: Chrome

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1928-1929 Model A Flying Quail Radiator Cap

28-29 Ford Model A, 3.44" Overall Height, Zinc, Chrome

Overall Height: 3.44"

Overall Length: 4.75"

Overall Diameter: 3.00"

Thread Pitch: 2-1/4"-18

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Model T Hex Radiator Cap, Chrome, Undrilled

Universal Fit, 1.07" Overall Height, 2"-18 Thread Pitch

Overall Height: 1.07"

Overall Diameter: 2.15"

Thread Pitch: 2"-18

Material Type: Steel

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Micro Radiator Cap 30Lb C&R

Micro Sprint, Sprint Car, 2.55" Overall Length, Steel

Overall Length: 2.55"

Pressure Rating: 30 lbs

Material Type: Steel

Finish: Nickel

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Mr Gasket 2471S Thermocap Radiator Cap, 16 Lb.

Austin, BMW, AM General, Buick, Cadillac, Chevy, Acura

Overall Diameter: 2.47"

Pressure Rating: 16 lbs

Material Type: Steel

Finish: Zinc Plated

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Speedway 16 Lb. Thermocap Radiator Cap

Universal Fit, 2.50" Overall Diameter, Steel

Overall Diameter: 2.50"

Pressure Rating: 16 lbs

Material Type: Steel

Finish: Zinc Plated

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1928-1929 Ford Model A Radiator Cap

28-29 Ford Model A, 1.06" Overall Height, Steel, Chrome

Overall Height: 1.06"

Overall Diameter: 2.67"

Thread Pitch: 2-1/4"-18

Material Type: Steel

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Chrome Radiator Pressure Cap, 7 lbs

Universal Fit, 2.40" Overall Diameter, Steel, Chrome

Overall Diameter: 2.40"

Material Type: Steel

Finish: Chrome

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Model T Dog Bone Radiator Cap, Chrome, Undrilled

09-27 Ford Model T, 1.08" Overall Height, Steel, Chrome

Overall Height: 1.08"

Overall Length: 6.27"

Thread Pitch: 2"-18

Material Type: Steel

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Model T Hex Radiator Cap, Chrome, Drilled

Universal Fit, 1.07" Overall Height, .44" Hole Diameter

Video Available

Overall Height: 1.07"

Overall Diameter: 2.14"

Hole Diameter: .44"

Thread Pitch: 2"-18

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1930-1931 Ford Model A Radiator Pressure Cap

30-31 Ford Model A, 1.20" Overall Height, Polished

Overall Height: 1.20"

Overall Diameter: 3.07"

Material Type: Stainless Steel

Finish: Polished

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Model T Dog Bone Radiator Cap, Chrome, Drilled

09-27 Ford Model T, 1.07" Overall Height, Brass, Chrome

Video Available

Overall Height: 1.07"

Overall Length: 6.27"

Hole Diameter: .44"

Thread Pitch: 2"-18

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AFCO 80152-16 Billet Aluminum Radiator Cap

Universal Fit, 2.86" Overall Diameter, Aluminum

Overall Diameter: 2.86"

Mounted Height: .68"

Pressure Rating: 16 lbs

Material Type: Aluminum

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Stant 10392 High Pressure Racing Radiator Cap, 21-25 Lbs

Universal Fit, 2.625" Overall Height, Steel

Overall Height: 2.625"

Overall Length: 2.625"

Pressure Rating: 21-25 lbs

Material Type: Steel

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1934 Ford Replacement Radiator Cap, Passenger Car, Chrome

1934 Ford, 1.68" Overall Height, 3.94" Overall Length

Overall Height: 1.68"

Overall Length: 3.94"

Overall Diameter: 2.88"

Material Type: Zinc

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OTB Gear 6202 Finned Radiator Cap, 7 Lbs

Universal Fit, 2.67" Overall Diameter, Aluminum

Overall Diameter: 2.67"

Mounted Height: 1.00"

Pressure Rating: 7 psi

Material Type: Aluminum

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Model T Gull Wing Cap, Chrome, Undrilled

Universal Fit, 2.94" Overall Height, 2"-18 Thread Pitch

Overall Height: 2.94"

Overall Length: 5.75"

Thread Pitch: 2"-18

Material Type: Brass

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Hex Chrome Radiator Caps

Universal Fit, 2.63" Overall Diameter, Steel, Chrome

Overall Diameter: 2.63"

Material Type: Steel

Finish: Chrome

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Model T Gull Wing Cap, Brass, Drilled

Universal Fit, 1.88" Overall Height, .45" Hole Diameter

Video Available

Overall Height: 1.88"

Overall Length: 5.67"

Hole Diameter: .45"

Thread Pitch: 2"-18

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Model T Gull Wing Cap, Chrome, Drilled

Universal Fit, 1.94" Overall Height, .44" Hole Diameter

Video Available

Overall Height: 1.94"

Overall Length: 5.75"

Hole Diameter: .44"

Thread Pitch: 2"-18

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