Transmission Cooler for BMW 7 Series E66 (2002-2008)

Clear BMW chassis

A transmission cooler is designed to keep fluids at a nominal temperature during periods of heavy use, or high heat. If yours is leaking, replace it now to prevent fluid loss and catastrophic failure.

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Mishimoto Universal Automatic Transmission/Power Steering Cooler ...

For Automatic Transmissions only

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:378417

Part#: MMTCU

In Stock

$ 110.99 USD

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$ 110.99 USD

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The Mishimoto Universal Transmission & Power Steering Cooler is used to cool automatic transmissions. Some Mishimoto radiators are only available for manual transmission applications; by using the universal transmission cooler, automatic transmission users have the ability to use our aluminum radiators with their automatic applications that would otherwise require an integrated transmission cooler. Fender bender damage your cooler? Mishimoto has you covered under its no questions asked warranty policy. Mishimoto will provide a warranty for all claims including vehicles involved in accidents. Warranty claims must include pictures of the accident and an official police report, and must be within three months of the accident. Dimensions of this core are 3/4" x 5" x 12". WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.

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CSF Universal Large Single-Pass Oil Cooler - Universal Application ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Universal fitment design - modifications may be necessary to run this cooler

T#:53608839

Part#: 8371

Ships in 3 Business Days

$ 499.00 USD

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$ 499.00 USD

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CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.

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OEM Nissens Automatic Transmission Oil Cooler - E65/66 760i/Li ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:641066

Part#: 17217541058

Ships in 6 Business Days

$ 141.99

This product was last offered at the strikethrough price on
12-15-2025

$ 124.99 USD

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$ 124.99 USD

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The oil cooler/heat exchanger for the automatic transmission is one of the most overlooked sections of the E90 335d cooling system. The cooler (heat exchanger) is a part of the overall cooling system and uses coolant circulated from the regular cooling system to cool the transmission oil running through this small cooling block. We recommend servicing or cleaning the heat exchanger along with any cooling system overhaul. Or if you're having transmission faults (especially for temperature) you may want to clean the transmission cooler anyway. Replacing or cleaning the heat exchanger components could lead to better shifting of the automatic as the cooler itself can become clogged. If you're experiencing harder or hesitating shifts, and the internal transmission temperature is rising without being regulated, the components in this system are the likely cause. Staying on top of the cooling needs of the transmission will help prevent a very costly transmission repair in the future.

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