Moroso Racing Radiator Cap - 19-21lbs

Marsoni

M251S

$23.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Moroso Racing Radiator Cap - 19-21lbsSKU: 63320 UPC: 084663633201 Moroso Racing Radiator Cap 19 21 PSI (Universal Fit) The Moroso Racing Radiator Cap 63320 delivers 19 21 PSI pressure to keep coolant from boiling over during high heat racing conditions. This cap fits standard 1 5 16 inch radiator necks on most passenger cars light trucks and performance vehicles. It raises the coolant boiling point by 25 30 degrees F for reliable engine cooling under extreme loads. Key Features 19 21 PSI

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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This is my go-to replacement when I conduct maintenance on my personal vehicle. The item is amazingly easy to install (use YouTube tutorials if necessary). The quality and value for the money is better than what I can receive at my local service center. The option to order this every six months as Subscribe & Save is worth it!

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Reviewed in the United States on May 26, 2025

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Joy Lokey

Fort Morgan, US

★★★★★ 5

Great alternate

Size: (Pack of 1)

This fit my 2018 Honda Accord perfectly, great price, easy replacement. Dealer wanted $50 to do it for me, NO! :)

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Reviewed in the United States on January 9, 2025

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Brian Tran

Birmingham, US

★★★★★ 4

Not oem but ok

Size: (Pack of 1)

It’s a filter

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Reviewed in the United States on December 11, 2025

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Amazon Customer

San Leandro, US

★★★★★ 5

Great Engine Air Filter For Honda Accord Speed 2.0 2018

Size: (Pack of 1)

It is one of the 2 engine air filters available on Amazon for Honda Accord Speed 2.0 2018. I see the same quality as the original OEM engine air filter. Perfect fit. The other one is ‎K&N 33-5074, but at a much higher price.

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Reviewed in the United States on April 3, 2024

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GradyPhilpott

Draper, US

★★★★★ 5

It Fits

Size: (Pack of 1)

It fits and the engine hasn't blown up yet, so so far so good. More to the point, the increased air flow has yielded better gas mileage and engine response.

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Reviewed in the United States on November 15, 2025