# Mishimoto 06-18 BMW N20/N52/N55 Replacement Oil Cooler

The factory transmission oil cooler on 2006-2018 BMW N20, N52, N55 vehicles is a liquid-to-liquid cooling unit, utilizing the engine's cooling system to cool the transmission fluid during warm outside temperatures and warm the fluid during cold outside temperatures. Though these designs are tried and true, they eventually wear out and fail, leading to leaking coolant into your transmission fluid. Mixing coolant into your transmission fluid can have catastrophic results and can cost thousands of dollars in rebuilding or replacing the transmission.--The Mishimoto Replacement Transmission Oil Cooler is a direct fit to the OEM, making it easy to install, and is equivalent to the OEM Specifications of performance. This product requires no modifications and is backed by the Mishimoto Lifetime Warranty. Replace your transmission cooler and prevent premature failure.

-   Replaces leaking or failing factory transmission oil cooler
-   Equivalent to OEM specifications for fit and function
-   Durable, corrosion-resistant aluminum construction

This Part Fits:

Year

Make

Model

Submodel

2008-2013

BMW

128i

Base

2014-2016

BMW

228i

Base

2015-2016

BMW

228i xDrive

Base

2013-2018

BMW

320i

Base

2013-2017

BMW

320i xDrive

Base

2013-2016

BMW

328i

Base

2013

BMW

328i xDrive

Base

2014-2016

BMW

428i

Base

2015-2016

BMW

428i Gran Coupe

Base

2006-2007

BMW

525i

Base

2006-2007

BMW

525xi

Base

2008-2011,2014-2016

BMW

528i

Base

2009-2010,2012-2016

BMW

528i xDrive

Base

2008

BMW

528xi

Base

2004-2007

BMW

530i

Base

2006-2007

BMW

530xi

Base

2008-2016

BMW

535i

Base

2010-2017

BMW

535i GT

Base

2011-2017

BMW

535i GT xDrive

Base

2009-2016

BMW

535i xDrive

Base

2014-2016

BMW

640i

Base

2014-2016

BMW

640i Gran Coupe

Base

2014-2016

BMW

640i xDrive

Base

2014-2016

BMW

640i xDrive Gran Coupe

Base

2014-2015

BMW

X1

sDrive28i

2014-2016

BMW

X1

xDrive28i

2006

BMW

X3

3.0i

2007-2008

BMW

X3

3.0si

2015-2017

BMW

X3

sDrive28i

2015-2017

BMW

X3

xDrive28d

2011-2012,2015-2017

BMW

X3

xDrive28i

2009-2010

BMW

X3

xDrive30i

2011-2017

BMW

X3

xDrive35i

2016

BMW

X4

M40i

2015-2018

BMW

X4

xDrive28i

2015-2016

BMW

X4

xDrive35i

2006

BMW

X5

3.0i

2007-2008

BMW

X5

3.0si

2011

BMW

X5

M

2014-2016

BMW

X5

sDrive35i

2009-2010

BMW

X5

xDrive30i

2009-2016

BMW

X5

xDrive35d

2011-2016

BMW

X5

xDrive35i

2011

BMW

X5

xDrive50i

2016

BMW

X6

M

2015-2016

BMW

X6

sDrive35i

2008-2016

BMW

X6

xDrive35i

2016

BMW

X6

xDrive50i

2004-2005

BMW

Z4

3.0i

2006-2008

BMW

Z4

Coupe 3.0si

2006-2008

BMW

Z4

Roadster 3.0i

2006-2008

BMW

Z4

Roadster 3.0si

## Details

- **Price:** 110.97 CAD
- **Vendor:** Mishimoto
- **Type:** Oil Coolers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 110.97 CAD | In stock |

## Images

- Photo - Primary
- User 1
- User 1
- User 1
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/mishimoto-06-18-bmw-n20-n52-n55-replacement-oil-cooler)
> Updated: 2026-06-27