SKU: 54448909991

Dinan High Capacity Oil Cooler System for BMW | E90 | N55 | 335i (w/ Factory OC & w/ Std. Bumper) (NLA)

Sale price$733.50 Regular price$815.00
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Ships within 48 hours Β· Estimated delivery Jul 16 - Jul 21

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Description

Dinan High Capacity Oil Cooler System for BMW | E90 | N55 | 335i (w/ Factory OC & w/ Std. Bumper) (NLA)It's no secret among 335 owners that while the cars perform admirably, they tend to run a bit on the warm side. This appears to be true even with the cars equipped with the factory oil cooler; and in case you weren't aware, not all 335's came with an oil cooler at all! For those who drive the cars in a spirited fashion on a regular basis, this issue is even more pronounced. While this is certainly a concern in stock form, it becomes even more of an

It's no secret among 335 owners that while the cars perform admirably, they tend to run a bit on the warm side. This appears to be true even with the cars equipped with the factory oil cooler; and in case you weren't aware, not all 335's came with an oil cooler at all!

For those who drive the cars in a spirited fashion on a regular basis, this issue is even more pronounced. While this is certainly a concern in stock form, it becomes even more of an issue when you consider increasing boost pressure, which in addition to added power output also generates more heat. And when you back your products with matching new car warranty coverage, including consequential damages, you tend to be a bit more concerned about the real world ramifications of increased turbo boost pressure on the car as a whole. Recognizing the significance of this issue, Dinan set out to develop a more efficient heat exchanger, ultimately in the form of a High Capacity Oil Cooler.

Two complete systems have been developed, one for vehicles that weren't equipped with a factory oil cooler and the other as an upgrade for the stock unit. Now every 335 driver has the opportunity to lower operating temperatures significantly, providing peace of mind as well as avoiding that notorious "limp" mode when things get simply too hot. The Dinan High Capacity Oil Cooler provides literally twice the volume of the stock unit, as well as 414 sq./in. of cooling tube vs. 112.5, and that's really just the beginning. Nicely integrated inlet ducting provides greater airflow efficiency and the ventilation of air to the fender well has also been improved with a larger outlet. The system mounts neatly in the stock location and includes lightweight convoluted PTFE hoses with polyester outer braid fitted with race-quality fittings.

Notes:
Only for use with Standard bumper.


Features/Benefits:

  • Keeps you, and your engine, running faster, longer!
  • Avoid going into limp mode during high performance driving
  • Over twice the volume over the stock unit
  • Increased surface area
  • Larger inlets and outlets providing more airflow
  • Includes upgraded hoses and race-style fittings
Specifications:
  • Total Volume Stock: 9.5 oz. / Total Volume Dinan: 19 oz.
  • Stock Surface Area: 45 sq./in. / Dinan Surface Area: 67.5 sq./in.
  • Stock Cooling Tubes: 10 / Dinan Cooling Tubes: 23
  • Stock Tube Length: 90 in. / Dinan Tube Length: 207 in.
  • Stock Tube Area: 112.5 sq./in. / Dinan Tube Area: 414 sq./in.

Installation Instructions: Dinan E90 Oil Cooler R570-0904 Instructions

VEHICLE FITMENT

  • E90 BMW 335i / 335xi - N55 3.0L

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54448909991

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4.8 β˜…β˜…β˜…β˜…β˜…
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Natasha Spencer
Chelsea, US
β˜…β˜…β˜…β˜…β˜… 3
Cheap
Size: 6FT*6FT, Color: Black
They serve their purpose as long as you leve them in one place and not moving them around and they're kinda flimsy and some of the velcros are cut too short and can't stay closed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
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Verified Purchase
Oulu family
Charlottesville, US
β˜…β˜…β˜…β˜…β˜… 5
Good value for the money.
Color: Black, Size: 6 Panel
This partition package is a great value. I looked at many options and this one had long length to cover an entire room with the six partitions. The pieces went together easily, took about 30 minutes to assemble and has the needed Allen wrench included. It is stable with no fear of being easily knocked down. The black fabric does not completely hide everything and if there is a light on the inside, it can illuminate what is going on. It does the job but if you wanted complete privacy you would need thicker material. Overall it does what I need in that it make a TV room into a kind of guest room of sorts.
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Reviewed in the United States on May 20, 2026
N
Verified Purchase
nickmarine
Cuba, US
β˜…β˜…β˜…β˜…β˜… 5
Worked amazing during christmas
Color: Black, Size: 6 Panel
We had a ton of people over for Christmas so I had to make an extra place for someone to sleep so I used these and surrounded an air mattress and made a small shelter basically. The dividers are light but sturdy , not heavy duty of course but not expected for this price. They do an excellent job of blocking out light and are not see thru and worked very well. Assembly was straight forward and even comes with an included wrench but I used my own to speed the process. 100% satisfied
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Reviewed in the United States on January 15, 2025
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SomeoneOutThere
Grantham, US
β˜…β˜…β˜…β˜…β˜… 4
Satisfactory
Color: Black, Size: 6 Panel
Everything was advertised. But the box it was shipped in was torn up pretty bad and taped up to compensate. Nevertheless, the product itself was not damaged.
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Reviewed in the United States on November 26, 2025
A
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Amazon Customer
San Leandro, US
β˜…β˜…β˜…β˜…β˜… 5
Easy to use.
Color: Grey, Size: 6 Panel
These are easy to put together and to use. We have used them with all the panels. We have also used them broke down into 2 and 3 panels. They work well for blocking views. They don't block noise or help quiet the room being used, however. Only bad thing about them. We use them for our Auxiliary meetings.
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Reviewed in the United States on July 11, 2025

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