🚀 Keep your GM running cool and confident—don’t get left behind!
The ACDelco GM Original Equipment RC27 Radiator Cap is a professional-grade, vehicle-specific replacement designed to seal and pressurize your cooling system at 15 P.S.I. Its durable plastic-metal construction and precision fit ensure optimal heat transfer and reliable performance across most GM cars, SUVs, and trucks.
| Brand | ACDelco |
| Color | Silver |
| Material | Plastic Metal |
| Exterior Finish | Machined |
| Item dimensions L x W x H | 2.5 x 2.4 x 1.5 inches |
| Vehicle Service Type | Car,Suv,Truck |
| Style | Professional |
| Closure Type | Twist-On |
| OEM Part Number | 10409635 |
| Manufacturer | ACDelco |
| UPC | 036666946543 |
| Global Trade Identification Number | 00036666946543 |
| Model | 10409635 |
| Item Weight | 2.08 ounces |
| Product Dimensions | 2.5 x 2.4 x 1.5 inches |
| Item model number | RC27 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | RC27 |
| National Stock Number | 2930-01-218-8397 |
A**R
Radiator cap fits 99 suburban k1500
This fit my 99 k1500 suburban perfectly, nice rubber gasket seals great. No problems and best part no leaks.
R**E
1998 Chevy
Fits my 1998 Chevy Silverado.
J**E
Works on Fords too
I bought this for my 1986 Mustang. Testing my Stant and motorcraft caps with my pressure tester they would not hold 16psi. This cap I would pump up to 20psi and would bleed off to a solid 16psi and hold. The cap doesn’t say AC delco or GM on it. Made in India.
C**N
Great Radiator cap!
The old cap was so loose on my Cadillac I could just twist it with two fingers. With this new one I had to put my full weight on it to be able to twist it on! It seems it is very good quality, I will be giving an update after a year or so.
J**C
Works great.
Replaced a worned out cap.
A**R
Worth the extra money for AC Delco
I first purchased a Gates radiator cap instead of this one. The Gates leaked. It was not well made and they cheaped out on the rubber under the cap. The Gates didn't have any. This cap has some good thick rubber under the cap. It doesn't leak. You can feel when you put it on that it's extra tight
C**S
Fits a 1995 Corvette 5.7l
Fits a 1995 Corvette 5.7l
T**D
Great quality
Works as it should.
Trustpilot
2 months ago
1 month ago
