Product Summary

Universal Fit, 20 psi Pressure Rating, Steel

  • High pressure cap raises the boiling point of water
  • Rated for 20 PSI
  • Made of High quality steel with zinc plating
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Key Specs

MFG. Part #91015620
BrandSpeedway Motors
Pressure Rating20 psi
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91015620 Details

A must have when racing! High pressure cap for radiators raises boiling point of water.

  • Made of High quality steel with zinc plating
  • Rated for 20 PSI

Learn more about cooling systems, how to choose the proper pressure cap, and how they work by reading our tech article. Cooling System Principles. 

Speedway Motors 91015620 Specifications

KEY SPECS
MFG. Part #91015620
BrandSpeedway Motors
Pressure Rating20 psi
GENERAL
Material TypeSteel
FinishZinc Plated
Overall Diameter2.47"
Sold in QuantityEach

Ratings & Reviews

4.9

36 Reviews

Overall Assessment

Customers frequently praise the product for its high-quality construction, excellent fit, and cost-effectiveness. It is particularly recognized for its reliable performance under high pressure, even in extreme temperatures, making it a favorite for users on both race cars and older model vehicles. The product's excellent fit with various radiators and expansion tanks is also often highlighted. Its consistent quality, even when compared with brand name caps, and versatile usability in different environments has given customers the confidence to repurchase and recommend the product to others.

4.9

36 reviews

5

32

4

4

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Yes

5.0

2 months ago

Tim

North Carolina

Verified

On another

Would Recommend

Yes I would buy this again

5.0

3 months ago

Michigan Bob

Mt.clemens mi

Verified

Circle track.

Would Recommend

I would buy this product again

5.0

3 months ago

Doc

Missouri

Verified

It's a radiator cap, as long as it works.

Would Recommend

Would definitely buy again when needed

5.0

4 months ago

Mopar Mike

New Port Richey, FL

Verified

Nice tight fit

Would Recommend

I would definitely buy this product again

5.0

a year ago

Cracker

Kerrville, Texas

Verified

I used it on a racing radiator that I purchased from Speedway

Would Recommend

Yes buy for a spare

4.0

a year ago

malibu46

Wichita,Ks.

Verified

For my Drag car Radiator

Would Recommend

I would definitely buy this product again.

5.0

a year ago

Mr. D-100

Idaho

Verified

Nicely built cap, fits the new radiator great and seals perfect. No complaints!

Would Recommend

I wish i could got right size

5.0

2 years ago

Bud

Augusta Kansas

Verified

I ordered wrong size on radiator for my 50's sprint car. I very pleased on how fast it came. Very easy to return

Would Recommend

Well made rad cap

5.0

2 years ago

RobbyG

Franklin Indiana

Verified

Fast delivery as always with a good product

Would Recommend

I would buy again

5.0

2 years ago

Grumpy

Vernal Utah

Verified

Work great so far.

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Showing 10 of 36 reviews

Questions & Answers

1 Question • 1 Answer

Do aluminum racing radiators require a special cap or do all universal radiators use any cap? Ive been told the aluminum radiators have a deeper hole so a stock cap wont seal?

by Joe

• 9 years ago

1 answer

1 of 1 questions shown

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