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🚗 Keep your engine cool and your ride unstoppable!
The Moroso 63320 Radiator Cap is a vehicle-specific, 20 lbs pressure-rated cap featuring a durable stainless steel spring and a sleek silver finish. Designed for high-performance engines like the Chevy 383, it ensures optimal cooling system pressure and leak-free operation, backed by a strong 4.6-star customer rating.
| ASIN | B000CON1Z0 |
| Best Sellers Rank | #90,745 in Automotive ( See Top 100 in Automotive ) #75 in Automotive Replacement Radiator Standard |
| Brand Name | Moroso |
| Closure Type | Twist-On |
| Color | Silver |
| Customer Reviews | 4.6 4.6 out of 5 stars (162) |
| Exterior Finish | Aluminum,Brass,Chromed,Painted,Polished,Stainless Steel,Steel |
| Global Trade Identification Number | 00084663633201 |
| Included Components | RADIATOR CAP,20 LB. |
| Item Dimensions | 7.13 x 5.25 x 1.5 inches |
| Item Type Name | RADIATOR CAP,20 LB. |
| Item Weight | 0.1 Pounds |
| Manufacturer | Moroso |
| Manufacturer Part Number | 63320 |
| Manufacturer Warranty Description | limited warranty |
| Material Type | Stainless Steel |
| Model Number | 63320 |
| Style Name | Modern |
| UPC | 084663633201 |
| Unit Count | 1.0 Count |
A**Y
Works on Chevy 383, 500hp
Using it on my Chevy 383. Functioning well.
B**N
has not leak
fit perfect.
A**H
Looks good on my aftermarket radiator
Fit right haven't tested yet
A**R
Great quality
As advertised pressure rating. Great looking cap. Lots of compliments on it during car meets 😀
N**E
Stay cool !
Was having cooling issues until I realized my cap was warn doing a pressure/vacuum check. Went a little higher on the pressure rating and what do you know it all went away. It does it's job and I'm happy. Fits and works perfectly .
R**.
Gasket sometimes fails
This is my third cap in 4 years. I have found the gasket to start failing after around a year.
D**C
Car overheating? Wish I found this sooner
I own a 1991 mr2 gen4 swop and I Purchased new oem radiator cap and long story short, that little guy (oem radiator cap) has costed me $2500 in time and money. I resurfaced head, replaced every coolant line, radiator, fan, timing and water pump, etc. and the car was still over heating. I purchased this and car stopped over heating. I’m thinking the extra Lbs of pressure were needed or the “new oem radiator cap” was faulty. Either way this buy was amazing. Just wish I found it sooner.
G**Y
Moroso parts available through Amazon
Moroso offers quality after market hign performance parts. Pleased to see that I could purchase them from Amazon.
D**S
Photo is misleading showing a 25lb cap... but you get a 21lb cap! Avoid!!!!
A**Y
Nice fit. No leaks.
Trustpilot
2 weeks ago
3 weeks ago