Where is this cap made?

always replace with factory part as much as you can

Will this fit a 1992 silverado 5.7

As far as I know it was. My husband died back in March. I know he didn't send it back.

will it fit 93 corvette

The picture looks nothing like the RC27. It's metal not plastic. Sorry can't help you with the 93 Vette. I used it on a 93 Cadillac Deville with a 4.9L V8. Not sure if it's to your application, but if yours is plastic - this isn't the one for you. - John

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🔥 Keep your engine cool and your ride unstoppable with ACDelco RC27!

EFFORTLESS INSTALLATION - No assembly required—upgrade your cooling system in seconds.
OPTIMAL COOLING PRESSURE - Maintains a precise 15 P.S.I. to keep your engine running cool and efficient.
SEAMLESS GM COMPATIBILITY - Fits most GM models for ultimate coverage and peace of mind.
TRUSTED BRAND RELIABILITY - ACDelco’s proven performance ensures your vehicle stays protected under pressure.
DURABLE PROFESSIONAL GRADE - Crafted to meet exacting standards for fit, form, and function.

The ACDelco RC27 Professional Radiator Cap is a premium aftermarket replacement designed to fit most GM vehicles. Engineered to maintain a 15 P.S.I. pressure seal, it ensures optimal cooling system performance by efficiently transferring heat away from the engine. Lightweight and easy to install, this radiator cap meets strict standards for fit, form, and function, delivering reliable durability and trusted ACDelco quality.

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AR$180473

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Brand	ACDelco
Item dimensions L x W x H	6.4 x 6.1 x 3.8 Centimeters
Vehicle Service Type	Car, Truck, Van
Style	Modern
Automotive Fit Type	Universal Fit
OEM Part Number	10409635
Manufacturer	ACDelco
UPC	036666946543
Global Trade Identification Number	00036666946543
Product Dimensions	6.35 x 6.1 x 3.81 cm; 59 g
Item model number	RC27
Manufacturer Part Number	RC27
Volume	9 Cubic Inches
Assembly Required	No
Item Weight	59 g

ACDelco RC27 Professional 15 P.S.I. Radiator Cap

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