CSF DCT Transmission / Engine Oil Cooler - BMW M3 E9X 2008-2013

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.

Specifications

This part fits:

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