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MMR 4-pinned single piece crank hub for BMW N55 & S55 Online Sale
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- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
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.
| Configuration | Without MMR capture plate, With MMR capture plate |
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