The do88 performance radiator is an all-aluminium unit with uninterrupted welds that solves the rising coolant temperatures common to the S65 V8 in the E90, E92 and E93 M3. Its dual-core 2-row 41mm core with 6.3mm multi-louvered fins holds 11,193 cm3 of coolant, 14% more than the OEM radiator, and lowered the measured outlet temperature to 73C against 79C for the stock unit under identical conditions. CNC-machined quick-connections and mounting brackets make it a direct drop-in using the factory hoses, brackets, fan cover and AC condenser.
Specifications
| Type | All-aluminium performance radiator |
| Core | Dual-core, 2-row, 41mm thick, 6.3mm multi-louvered fins |
| Engine | S65B40 / S65B44 V8 |
| Part Number | WC-190 |
| OEM Replacement | 17112283468 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2013 | BMW | M3 | E90 (S65) |
| 2007-2013 | BMW | M3 | E92 (S65) |
| 2007-2013 | BMW | M3 | E93 (S65) |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
