The CSF DCT Oil Cooler is a true plug-and-play upgrade for the BMW E9X M3 platform, installing in the OEM location with no modifications. It can serve as a transmission oil cooler on DCT cars or an engine oil cooler on 6MT cars. The dual-pass high-performance core has 11 cooling tubes (vs the OEM 10-tube design) and uses CSF's AC Condenser Technology with a 1-row super-high-pressure 22mm wide 11-channel microtube and 20% more surface area than OEM. Lab tested at approximately 30% more efficient. Replaces OEM part number 17227521376.
| Type | DCT transmission / engine oil cooler (drop-in fit) |
| Core | Dual-pass, 11 cooling tubes (vs OEM 10); AC Condenser Tech 22mm 11-channel microtube |
| Efficiency | ~30% more efficient than OEM (+20% surface area) |
| Connections | OEM oil-line connections |
| OEM Replacement | 17227521376 |
| Warranty | CSF Limited Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2013 | BMW | 135i | Base |
| 2013 | BMW | 135is | Base |
| 2007-2013 | BMW | 335i | Base |
| 2009-2013 | BMW | 335i xDrive | Base |
| 2011-2013 | BMW | 335is | Base |
| 2007-2008 | BMW | 335xi | Base |
| 2008-2013 | BMW | M3 | Base |
| 2013-2015 | BMW | X1 | xDrive35i |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
