MMX Crank Hub Capture Plate - BMW N55 M135i, M235i, 335i, 435i
Issues relating to the standard three-piece crank hub on the S55 and N55 engine are widely known, and include the need to ensure the OE crank bolt cannot loosen. That's where the MMX crank hub capture plate comes in.

Prevent N55 or S55 crank hub bolt failure.
Machined from T-6061 billet aluminium before being anodised in our trademark finish, the MMX Performance capture plate completely surrounds and secures the head of the OE crank bolt, making it physically impossible for it to turn or loosen.
Secured to either the MMX one-piece crank hub, or the OE crank hub, the elongated slots ensure a perfect, secure installation, every time.
Installation of the capture plate is also possible with the engine remaining in-situ, with just the need to drop the radiator, in order to gain adequate access to install.
Product Features
- Single-piece design.
- Machined from T-6061 billet aluminium before being anodised in our trademark gloss black finish.
- Completely surrounds and secures the head of the OE crank bolt.
- Available to purchase with MMX single-piece crank hub.
- Complete kit with everything you need.
Product Fitment