Radiator Control Sleeve (Petcock Valve), BMW - E82, E9X, E89 Automatic Transmission

Common source of coolant leaks. Correct sleeve for all automatic models.

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Price:
$20.99

This is the radiator drain valve, also known as a BMW control sleeve or petcock valve, for automatic or DCT transmission E82, E90, E91, E92, E93, E84 X1, and E89 Z4 models. The blue screw in the center is a traditional drain valve. The rest of the design controls fluid flow to a heat exchanger for an automatic transmission. The longer control sleeve for automatic models allows fluid to reach the outlet on the radiator for the heat exchanger. The shorter control sleeves for a manual transmission block fluid to this outlet so you want to make sure you only use the long sleeve for automatic models.

If you remove the valve using the hex portion you will break the tabs that lock the valve in place. The system will never seal again until a new control sleeve is installed.

This control sleeve is a Genuine BMW part, the original BMW part you might get at a dealer, but several dollars cheaper (and delivered directly to your door!) This is BMW part # 17117521781 (17 11 7 521 781) 

This is a Genuine BMW radiator control sleeve with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.

BMW Fitments:
1 Series
E82 / E88 (08-13) > 128i
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) > 323i
E90 / E91 / E92 / E93 (06-13) > 325i
E90 / E91 / E92 / E93 (06-13) > 325xi
E90 / E91 / E92 / E93 (06-13) > 328i
E90 / E91 / E92 / E93 (06-13) > 328xi
E90 / E91 / E92 / E93 (06-13) > 330i
E90 / E91 / E92 / E93 (06-13) > 330xi
E90 / E91 / E92 / E93 (06-13) > 335d
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)
X1 Series
E84 X1 (2013-2015) > X1 28i
E84 X1 (2013-2015) > X1 28i xDrive
E84 X1 (2013-2015) > X1 35i xDrive
Z Series
E89 Z4 (2009-2016) > Z4 sDrive28i
E89 Z4 (2009-2016) > Z4 sDrive30i
E89 Z4 (2009-2016) > Z4 sDrive35i
E89 Z4 (2009-2016) > Z4 sDrive35is
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