The SPEC SS-Trim twin disc clutch kit is a replacement twin-clutch assembly for 2007–2009 BMW 135i, 335i and 535i applications with a 6-bolt crank. It provides a compact twin-disc solution for higher clamping capacity and smoother engagement than a single-plate unit. This kit matches SPEC’s ST-trim fitment and is specified for direct replacement on compatible crank patterns.
Spec 07-09 BMW 135i/335i/535i ST-Trim Twin Disc Clutch Kit w/6 Bolt Crank