SPEC part number SB553H is the Stage 2 Plus clutch for the BMW 435i in F32 coupe, F33 convertible and F36 Gran Coupe form. SPEC's Stage 2+ uses a multi-friction disc that, in SPEC's words, maintains the excellent drivability of Stage 2 but with 15-20% higher torque capacity — the setup for a tuned car that still has to behave in traffic.
This is a ratcheting assembly. SPEC lists it for use with the OE dual-mass flywheel or a single-mass flywheel modelled after the OE dual-mass, so a flywheel purchase is not forced and none is supplied in this kit. Note that SB553H is a wide-coverage part number at SPEC, also listed for the N55/F30 335, 340i, 440i, 328i, M235i, M140i, M240i, 1M, Z4 35i (N55), X1 28iX and 535 (F10).
- SPEC Stage 2+: multi-friction disc, 15-20% higher torque capacity than SPEC Stage 2
- Ratcheting pressure plate — for use with the OE dual-mass flywheel or a single-mass flywheel modelled after the OE dual-mass
- No flywheel included and none required for the 435i application
- SPEC lists the 435i application as 2013-2017
- Same SPEC part number also covers BMW 335 (E9x N55 and F30), 340i, 440i, 328i/328d (F30), M235i, M140i, M240i, 1M, 535 (F10), X1 28iX and Z4 35i (N55)
- SPEC rates Stage 2+ for street, drag, pulling and autocross use
Specifications
| Stage | Stage 2+ (SPEC “Stage 2 Plus”) |
| Disc Material | Multi-friction |
| Flywheel Required | No — OE dual-mass flywheel or a single-mass flywheel modelled after it. Flywheel not included. |
| Street/Strip Use | Street, drag, pulling, autocross |
| Part Number | SB553H |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
