🚗 Keep your engine cool and your ride flawless with ACDelco’s precision radiator cap!
The ACDelco GM Original Equipment RC81 Radiator Cap delivers a precise 15 P.S.I. pressure rating, crafted from corrosion-resistant stainless steel with a painted finish. Designed for vehicle-specific fitment across cars, SUVs, and trucks, it meets rigorous GM quality standards to ensure reliable, professional-grade cooling system performance.
| Brand | ACDelco |
| Color | Silver |
| Material | Stainless Steel |
| Exterior Finish | Painted |
| Item dimensions L x W x H | 2.4 x 2.4 x 1.4 inches |
| Vehicle Service Type | Car,Suv,Truck |
| Style | Modern,Professional |
| Item Weight | 0.05 Pounds |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Part Number | 25661994 |
| Manufacturer | ACDelco |
| UPC | 036666944921 |
| Global Trade Identification Number | 00036666944921 |
| Model | ACDelco - 15 P.S.I. Radia (Slp) (RC81) |
| Item Weight | 0.8 ounces |
| Product Dimensions | 2.4 x 2.4 x 1.4 inches |
| Item model number | RC81 |
| Manufacturer Part Number | 25661994 |
M**I
exact replacement, thanks
a little too tight, but it is ok
M**D
Right fit
Perfect fit. Great no more leaks seeping out.
M**S
It's a Radiator Cap! it doesn't Leak!
I put this cap on the OEM radiator in a 1973 Chevy Camaro. It fits like the original and does not leak like the old one did. Plus, it looks like the original too. Overall, not bad.
N**E
Quality construction.
Well made and seals to radiator filler neck tightly.
C**L
good
good
J**7
works perfect
I installed this is my 1997 C1500 pickup and it works exactly like OEM
A**E
Genuine parts!
I wanted an exact replacement for my old 1973 Chevy C20 with the 5.7 350. I saw many caps advertised as 16psi instead of the factory 15psi thats on my original RC33 cap. Does one PSI make a difference? Probably not but its give me peace of mind knowing its correct.I also want to mention the original RC33 caps are not made anymore. You will not buy a replacement that looks exactly the same. These caps are actually stamped RC33 but have a pressurized insert inside the cap. It's as close to OEM you are going to get from a new part.
S**N
Perfect fit for my Becool radiator
Worked perfectly on my car radiator and price was great.
Trustpilot
1 month ago
2 weeks ago
