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🛠️ Keep your engine cool and your ride unstoppable with OEM precision!
The ACDelco GM Original Equipment RC111 Radiator Cap is a high-quality, stainless steel component designed to maintain 18 P.S.I. pressure in your vehicle’s cooling system. Engineered for most GM models, it ensures optimal engine performance by raising coolant boiling points and preventing leaks with a secure twist-on seal. Trusted by professionals and backed by 485+ positive reviews, this OEM part guarantees durability and perfect fitment for cars, trucks, and vans.





| ASIN | B000IZ5E1M |
| Automotive Fit Type | Vehicle Specific Fit |
| Brand | ACDelco |
| Brand Name | ACDelco |
| Closure Type | Twist-On |
| Color | Black |
| Colour | Black |
| Compatible with Vehicle Type | Car, Truck, Van |
| Customer Reviews | 4.7 out of 5 stars 485 Reviews |
| Exterior Finish | Stainless Steel |
| Exterior finish | Stainless Steel |
| Global Trade Identification Number | 00707773127018 |
| Included Components | Radiator Cap |
| Item Dimensions | 6.4 x 6.1 x 3.8 centimeters |
| Item Type Name | Radiator Cap |
| Item Weight | 64 g |
| Item dimensions L x W x H | 6.4 x 6.1 x 3.8 centimeters |
| Manufacturer | ACDELCO |
| Manufacturer Part Number | 15293434 |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model Number | RC111 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 15293434 |
| Part Interchange Info | RC111 |
| Style Name | Safety |
| UPC | 707773127018 |
| Unit Count | 1 Count |
| Vehicle service type | Car, Truck, Van |
J**T
Not much to say, it just works
It’s an OEM part for my Chevy Impala 2006 3.5L by GM. It works just fine, it keeps my cooling system pressurized properly, I can feel the hoses get tight. No leaks. Ops check good at this time.
A**R
FUNCIONAL PONTIAC MONTANA 2008
Parte 100% original se cambió en Pontiac Montana 2008 funciona de manera correcta
P**N
Fits like a cap.
Worked. Cooling system holds pressure. Have be able to ignore this issue ever since.
R**N
Perfect replacement
I was losing heat inside my van when I was not moving. It turns out that the radiator cap was not holding pressure in the heating/cooling system, allowing air to pass through the heater without being heated. I replaced the cap with this OEM model and things have been fine ever since. Price was way less than from the dealer and shipping was quicker than advertised.
O**N
Perfect Fit For 2008 Impala
18 PSI cap for 2008 Impala 3.5 liter. Fit was perfect and installed easy with no leaks. GM cap at a great value.
Trustpilot
1 day ago
2 weeks ago