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🛠️ Keep your GM running cooler, longer — the smart cap for savvy drivers!
The ACDelco GM Original Equipment RC85 Radiator Cap is a vehicle-specific, stainless steel component designed to maintain 15 PSI pressure in the cooling system. Backed by GM, it raises the boiling point of engine coolant to enhance performance and reliability, fitting most GM models as a trusted OEM replacement part.





| ASIN | B000C9S78G |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #25,344 in Automotive ( See Top 100 in Automotive ) #31 in Automotive Radiator Caps Standard |
| Brand Name | ACDelco |
| Closure Type | Twist-On |
| Color | Black/White |
| Compatible with Vehicle Type | Car |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,467) |
| Exterior Finish | Stainless Steel |
| Global Trade Identification Number | 00021625403168, 20021625403162 |
| Included Components | ACDelco - 15 P.S.I. Radia (Slp) (RC85) |
| Item Dimensions | 6.4 x 6.1 x 3.8 centimeters |
| Item Type Name | ACDelco - 15 P.S.I. Radia (Slp) (RC85) |
| Item Weight | 0.14 Pounds |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 15042975 |
| Manufacturer Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
| Material Type | Stainless Steel |
| Model Number | RC85 |
| OEM Equivalent Part Number | 15042975 |
| Part Interchange Info | RC85 |
| Style Name | Safety |
| UPC | 021625403168 781761172440 |
| Unit Count | 1 Count |
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