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MMX 4-Pinned crank hub | BMW S55 | N55
MMX 4-Pinned crank hub | BMW S55 | N55
MMX 4-Pinned crank hub | BMW S55 | N55
MMX 4-Pinned crank hub | BMW S55 | N55
MMX 4-Pinned crank hub | BMW S55 | N55
MMX 4-Pinned crank hub | BMW S55 | N55

MMX 4-Pinned crank hub | BMW S55 | N55

MMX Performance
Ships from Supplier
Ships from Supplier
SKU MMR20-1004
$1,051.99 - $1,064.18
$1,064.18
$1,051.99 - $1,064.18
$1,064.18
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CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

Configuration: Without MMR capture plate
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Engine failures caused by the standard three-piece crank hub on the S55 and N55 engine are (unfortunately) well known, but these are fully addressed with the installation of the MMR Performance 4-pinned single-piece crank hub. Together with the option of adding our Capture Plate for ultimate security.

The OE crank hub unit's friction plate are known to slip rotationally, causing the timing to alter enough that piston-to-valve contact can occur, leaving owners with a very expensive repair bill.

Our 4-pin version of our single-piece crank hub kit is simply the ultimate solution to preventing this problem before it happens on high horsepower engines.

This part also goes by the following cross reference.

Cross Reference Part Number:

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