Genuine OEM Audi S8 D4 (2012-2018) main radiator with attached hoses, fans, and mounting brackets. This is the complete front-end cooling assembly pulled from a D4 S8 platform. Perfect direct replacement for high-performance 4.0T V8 models. Tested and in good used condition — ready to install.
| part_number | 4H0121251E (4H0121251B / 4H0 121 251 E) |
| manufacturer | Audi / Behr (OEM) |
| pname | OEM Audi S8 (D4 / 4H) Main Radiator – Complete Cooling Module Assembly |
| stock | 3 |
| qty_range | 1 |
| unit_price | 325 |
• Genuine OEM Audi part from D4 S8 platform • Includes integrated hoses, brackets, and fan components as pictured • Ideal replacement for overheating issues or performance builds • High-flow aluminum core designed for the demanding 4.0T V8 • Complete
| • Radiator Type | Main engine coolant radiator (aluminum core with plastic end tanks) |
| • Application | Audi S8 D4 (4H chassis) – 4.0T V8 (also fits certain A8 D4 variants) |
| • Condition | Used OEM – complete assembly including hoses and brackets |
| • Core Dimensions | Large high-flow design for the powerful 4.0T engine |
| • Includes | Radiator, upper/lower hoses, fan shroud elements, and mounting hardware as shown |
| • Turbo / Engine | 4.0L V8 Bi-Turbo (S8 D4) |
| • OEM Part Numbers | 4H0121251E, 4H0121251B, 4H0-121-251-E |
| • Material | Aluminum core with plastic tanks |
| • Cooling System | High-capacity for S8 performance |
| • Fitment | Direct bolt-on for 2012-2018 Audi S8 D4 |
| • Notes | Photos show the actual assembly with attached components |
No compatibility data available.