do88 Aluminum Radiator - BMW 135i / 335i N54/N55 2007-2013 - Manual Transmission

The do88 performance radiator is a direct drop-in upgrade for manual transmission N54 and N55 powered BMWs, engineered to hold coolant temperatures in check during sustained hard driving. Its all-aluminum core uses uninterrupted welds in a single-tube 40mm design with 5.0mm multi-louvered fins, giving a 29% larger core volume than the OE unit (8616cm³ versus 6701cm³). The larger frontal area and thicker core shed more heat while bolting into the factory location with no modifications. It replaces OE part 17117558480.

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