| Feature | Specification Details |
| Product Name | Aftercooler Assembly (Shell & Tube) |
| Part Number | 39902366 |
| Cross-Reference | 23135825 / 39902168 (Oil Cooler variant) |
| Manufacturer | Ingersoll Rand (Genuine OEM) |
| Material | Stainless Steel Tubes / Carbon Steel or SS Shell |
| Configuration | Water-Cooled (Shell & Tube) |
| Compatible Models | SSR 100–200 HP, Sierra Oil-Free, and R-Series |
| Primary Function | Reduces discharge air temperature & removes moisture |
| Estimated Weight | ~45 kg (99 lbs) to 75 kg depending on configuration |