do88 Racing DKG/DCT Transmission Oil Cooler - BMW M3 (E90/E92/E93) 2007-2013

do88 Racing DKG/DCT Transmission Oil Cooler - BMW M3 (E90/E92/E93) 2007-2013

do88 SKU: DOBOC-110
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This do88 Racing cooler replaces the factory gearbox oil cooler on the S65 powered M3 with an 18-row Bar and Plate core carrying 2208 cm³ of core volume against the original 696 cm³, and 3456 cm² of active cooling area against 1242 cm². In do88's back to back testing oil left the cooler at 74°C where the original returned 90°C, an 18% reduction, and the larger core holds 0.65 litres of oil instead of 0.31 litres. CNC-machined oil line connections mate with every version of the factory oil lines and the CNC-machined brackets use the original mounting points, so it fits with no modifications. The cooler can be pre-filled before installation, so the whole system does not need to be drained and refilled.

Specifications

Type Transmission oil cooler for DKG / DCT and manual gearboxes (do88 Racing)
Core 18-row Bar and Plate
Core Volume 2208 cm³ (OEM 696 cm³)
Active Cooling Area 3456 cm² (OEM 1242 cm²)
Oil Capacity 0.65 litres (OEM 0.31 litres)
Connections CNC-machined oil line connections and CNC-machined brackets
Engine S65B40, S65B44
Installation Drop-in using the OEM oil lines and mounting points
OEM Replacement 17227521376
Part Number OC-110

Documents: Installation Instructions (PDF)

This part fits:

Year Make Model Submodel
2007-2013 BMW M3 E90
2007-2013 BMW M3 E92
2007-2013 BMW M3 E93

Shipping

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  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
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Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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