This auxiliary cooler mounts to the brackets built into the front of do88's WC-310 performance radiator for the M3 E46, so that radiator is required. It is intended for low pressure circuits such as power steering or gearbox oil, and both connections are AN6 male, so the lines are made to suit the installation and are not supplied. The core measures 446 x 131 x 26.5mm and the assembly 652 x 131 x 202mm overall. Rubber lined p-clips and screws are included for mounting.
Specifications
| Type | Auxiliary low pressure oil cooler for power steering or gearbox oil |
| Position | Front, mounted to the face of the do88 WC-310 radiator |
| Core Size | 446 x 131 x 26.5mm (length x height x thickness) |
| Total Size | 652 x 131 x 202mm (length x height x thickness) |
| Inlet/Outlet | AN6 male, both connections |
| Included | Cooler, rubber lined p-clips and screws |
| Pairs With | do88 Performance Radiator WC-310 (required) |
| Note | Oil lines are not supplied and must be made to suit |
| Quantity | 1 |
| Part Number | OC-120-E46 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000 | BMW | M3 | E46 (with do88 WC-310 radiator) |
| 2001 | BMW | M3 | E46 (with do88 WC-310 radiator) |
| 2002 | BMW | M3 | E46 (with do88 WC-310 radiator) |
| 2003 | BMW | M3 | E46 (with do88 WC-310 radiator) |
| 2004 | BMW | M3 | E46 (with do88 WC-310 radiator) |
| 2005 | BMW | M3 | E46 (with do88 WC-310 radiator) |
| 2006 | BMW | M3 | E46 (with do88 WC-310 radiator) |
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.
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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.
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Full details: Shipping Policy · Refund Policy
