SPEC SB533-2 Stage 3 Clutch Kit for BMW N54/N55/B58 3.0L for SPEC Flywheel

Vehicle Fitment

• 2007-2010 BMW 135i (E82/E88, N54 3.0L)
• 2011-2013 BMW 135i (E82/E88, N55 3.0L)
• 2014-2016 BMW 228i / 235i (F22/F23, N55 3.0L)
• 2017-2021 BMW 230i / M240i (F22/F23, B58 3.0L)
• 2007-2013 BMW 335i / 335xi (E90/E92/E93, N54/N55 3.0L)
• 2012-2018 BMW 335i / 340i (F30/F34, N55/B58 3.0L)
• 2007-2010 BMW 535i (E60/E61, N54 3.0L)
• 2011-2016 BMW 535i / 535i xDrive (F10, N55 3.0L)
• 2013-2018 BMW 428i / 435i / 440i (F32/F33/F36, N55/B58 3.0L)
• 2009-2016 BMW X1 xDrive28i (E84/F48, N55 3.0L)
• 2009-2016 BMW Z4 sDrive35i / 35is (E89, N54/N55 3.0L)
• 2020-2023 Toyota GR Supra (A90 MKV, B58 3.0L)

Fitment Notes

• Requires SPEC SMFW -- not compatible with OEM DMFW
• Non-SAC applications only
• E-chassis thru 1/2009 (8-bolt): SB53S-2 (steel) / SB53A-2 (aluminum)
• E-chassis from 2/2009 (6-bolt): SB53S-3 (steel) / SB53A-3 (aluminum)
• F-chassis / A90: SB53S-4 (steel) / SB53A-4 (aluminum)
• Flywheel not included -- sold separately
• Steel flywheel recommended for street use
• Recommended for 500+ WHP / TQ builds
• Manual transmission only
• Professional installation required

Features

• SPEC Stage 3 series
• Carbon semi-metallic 6-puck sprung hub disc
• High-clamp pressure plate
• Double-sprung heat-treated hub
• Self-adjusting engagement point
• 580 ft-lbs torque capacity
• Street and track capable
• SFI approved
• Made in USA
• 1-year / 12,000-mile warranty

Specifications

• Part Number: SB533-2
• Series: Stage 3
• Disc: 6-Puck Sprung Hub
• Friction Material: Carbon Semi-Metallic
• Torque Capacity: 580 ft-lbs
• Input Splines: 26
• Flywheel: SPEC SMFW required (not included)
• OEM DMFW Compatible: No
• SFI Approved: Yes
• Usage: Street, Drag, Road Race, Autocross, Drift
• Country of Origin: USA
• Warranty: 1-Year / 12,000 miles

Included Components

• 1x Stage 3 pressure plate
• 1x Carbon 6-puck sprung hub disc
• Pilot bearing
• Release bearing
• Alignment tool

Product Description

The SPEC SB533-2 is a Stage 3 performance clutch kit for BMW N54, N55, and B58 3.0L platforms -- covering the 135i, 235i, M240i, 335i, 340i, 535i, 428i, 435i, 440i, X1, Z4, and Toyota GR Supra A90 MKV. Designed for builds exceeding 500 WHP/TQ, the Stage 3 delivers 580 ft-lbs of torque capacity via a carbon semi-metallic 6-puck sprung hub disc and high-clamp pressure plate -- aggressive enough for track use while remaining streetable for daily driving.

Requires a SPEC single-mass flywheel; not compatible with the OEM dual-mass flywheel. Flywheel selection varies by chassis and production date -- E-chassis through 1/2009 (8-bolt): SB53S-2/SB53A-2; E-chassis from 2/2009 (6-bolt): SB53S-3/SB53A-3; F-chassis and A90: SB53S-4/SB53A-4. Steel flywheel recommended for street use. Flywheel sold separately. Made in USA, SFI approved, backed by SPEC's 1-year / 12,000-mile warranty.