Mishimoto Performance Aluminum Radiator - BMW 135i 335i 335is 1M & Z4 Manual (2007-2013)

Mishimoto's performance aluminum radiator is a direct-fit upgrade for the manual-transmission BMW 135i, 335i, 335is, 1 Series M, and Z4 (2007-2013, N54/N55 inline-six). It pairs TIG-welded end tanks with a 100 percent brazed two-row aluminum core and CNC-machined quick-disconnect inlet and outlet connections that mate to the stock hoses, delivering a 35 percent increase in coolant capacity over the failure-prone stock plastic radiator. A brushed aircraft-aluminum finish and an included magnetic drain plug with dowty seal round out the package.

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