CSF Radiators

CSF Dual-Pass Transmission Cooler – DCT / 6-Speed

  • Sale
  • Regular price $449.00


OVERVIEW

CSF's dual-pass cooler was the world's first true plug-and-play transmission cooler for the E9X M3 platform. It is built with CSF's AC condenser technology around a 1-row super-high-pressure 22mm wide 11-channel microtube, giving a dual-pass core with 11 cooling tubes against the OEM's 10-tube single-pass design.

The high-density multi-louvered fin adds 20% more surface area contact than the factory unit, and the cooler lab tests around 30% more efficient than OEM. It is a drop-in fit that accepts every OEM attaching component — oil-line connections, mounting brackets and shroud/ducting. On DCT cars it serves as the transmission cooler; on 6-speed manual cars the same unit is the engine oil cooler.

SPECS

  • Built with CSF's AC condenser technology using a 1-row super-high-pressure 22mm wide 11-channel microtube
  • Dual-pass high-performance core with 11 cooling tubes versus the OEM 10-tube design
  • High-density multi-louvered fin design with 20% more surface area contact than the OEM unit
  • Lab tested at approximately 30% more efficient than the OEM cooler
  • Serves as the transmission oil cooler on DCT cars and the engine oil cooler on 6-speed manual cars
  • Drop-in fit requiring no modifications — accepts all attaching OEM components including oil-line connections, mounting brackets and shroud/ducting
  • Replaces OEM part number 17227521376
  • 2-year warranty to the original purchaser under normal use

PARTS INCLUDED

  • CSF dual-pass transmission / oil cooler
  • Complete kit as supplied by CSF Radiators; see the installation instructions for the full bill of materials

TECH RESOURCES

Additional Parts Required

  • None. CSF Radiators specifies no additional hardware for this part — it is a drop-in fit that reuses the OEM oil lines, brackets and ducting.

Installation

  • CSF does not publish a downloadable installation PDF for this part. Printed installation instructions ship in the box.

Notes

  • DCT cars run this unit as the transmission cooler; 6-speed manual cars run the same part as the engine oil cooler. Confirm fitment with Speed Logic if you are unsure which position applies to your car.

PART NUMBER

  • 8042

VEHICLE APPLICATIONS

Make / Model Chassis Engine Years
BMW M3 Sedan E90 S65 4.0L V8 2008–2012
BMW M3 Coupe E92 S65 4.0L V8 2008–2013
BMW M3 Convertible E93 S65 4.0L V8 2008–2013
BMW 335i / 335xi Sedan (incl. xDrive) E90 3.0L Turbo I6 2007–2011
BMW 335i Coupe (incl. xDrive) E92 3.0L Turbo I6 2012–2013
BMW 335is Coupe E92 3.0L Turbo I6 2011–2013
BMW X1 xDrive35i E84 3.0L Turbo I6 2013–2015