Radiator, CSF OE Plus - E82 135i/1M, E9X 335i, E89 Z4 Auto/DCT

A more efficient drop-in replacement for your OE radiator

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Price:
$94.99

E82 135i, E90/E92 335i CSF OE-Plus Replacement Radiator
  • Drop-in fitment to E82 and E90/E92 automatic transmission models
  • Includes transmission cooler
  • High performance aluminum core
  • CSF B-Tube design
  • Designed and tested in the USA
The OE-Plus CSF radiators for the offer much of the same technology and benefits as their Aluminum and Triple-Pass designs, but at a more accessible price. OE-Plus are the same dimensions as the stock radiator but with better materials and greater surface area on the vanes for improved cooling (as much as 15% better than original). CSF uses a proprietary "B-Tube" design for their vanes. Instead of a single oval radiator tube, CSF has two tubes in the shape of a "B" that have more surface area and greater strength. In addition, CSF can use a thinner and lighter material that is more efficient.

OE-Plus radiators have plastic end tanks and an aluminum core for a drop-in fitment, just like the OEM design. All CSF radiators receive design and development in the USA with additional wind tunnel, vibration, thermal cycle, burst pressure, and salt spray testing done at their production facilities in Southeast Asia. During manufacturing, radiators are individually tested for leaks and receive a 30-point inspection prior to shipping. CSF is an OE supplier to several manufacturers as well as providing private-label products for other radiator brands. CSF radiators have a two year warranty.

Also fits 335is with DCT transmission.

Application note: models with automatic transmission use the long drain plug type (control sleeve). The shorter plug is for manual transmission models.

BMW Fitments:
1 Series
E82 / E88 (08-13) > 135i N54 (08-10)
E82 / E88 (08-13) > 135i N55 (11-13)
E82 / E88 (08-13) > 135is N55 (11-13)
3 Series
E90 / E91 / E92 / E93 (06-13) > 335i N54 (07-10)
E90 / E91 / E92 / E93 (06-13) > 335i N55 (11-13)
E90 / E91 / E92 / E93 (06-13) > 335is N54
E90 / E91 / E92 / E93 (06-13) > 335xi N54 (07-10)
E90 / E91 / E92 / E93 (06-13) > 335xi N55 (11-13)
Z Series
E89 Z4 (2009-2016) > Z4 sDrive35i
E89 Z4 (2009-2016) > Z4 sDrive35is
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