

🛡️ Seal your ride with GM Genuine Parts — because your engine deserves the best!
The GM Genuine Parts 15-32584 Engine Coolant Outlet O-Ring is a factory-spec replacement part designed to provide a precise, watertight seal between the engine coolant outlet and engine block. Manufactured by ACDelco to meet GM OE standards, this durable rubber gasket ensures reliable performance and longevity, maintaining your GM vehicle’s cooling system integrity.





| Material | Rubber |
| Nominal Inside Diameter | 1.5 Inches |
| Brand | GM GENUINE PARTS |
| UPC | 021625823904 |
| Manufacturer | ACDelco |
| Unit Count | 1.0 Count |
| Global Trade Identification Number | 00021625823904, 40021625823902 |
| Model | Outlet O-Ring |
| Item Weight | 0.16 ounces |
| Product Dimensions | 2 x 2 x 0.2 inches |
| Item model number | 15-32584 |
| Exterior | Machined |
| Manufacturer Part Number | 12584040 |
| OEM Part Number | 12584040 |
N**S
Acdelco 12584040 O-Ring for water outlet
There is no good description so I bought this hoping it was the right one and it was. This is the o-ring for the water outlet. This fit my 2009 Chevy Traverse 3.6.
K**O
good!
fast deliverygood!
J**E
Pontiac G8
Didn’t fit too large and would leak coolant everywhere don’t buy this!
Trustpilot
2 weeks ago
1 month ago