The ACT T1S-B05 Mod-Twin 225 HD Rigid Street Clutch Kit is a modular twin-disc clutch for 2007-2009 BMW 135i, 335i and 535i models with the N54 twin-turbo engine. The HD rigid-hub setup blends easy pedal feel and smooth, positive engagement with quick shifting, using twin steel-backed organic friction plates and a rigid chrome-moly Mono-Drive hub for quick shifts and trouble-free service. This kit includes a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, floater, patented Monoloc collar, release bearing, alignment tool and pilot bearing if needed. Mod-Twin clutches are fully rebuildable and most components can be ordered separately.
- Type: Mod-Twin 225 HD Rigid Street Clutch Kit
- Hub: rigid Mono-Drive
- Friction: twin steel-backed organic friction plates
- Engine: BMW N54 twin-turbo
- Design: modular, rebuildable
- Part number: T1S-B05
Vehicle Applications
- 2008 BMW 135i
- 2009 BMW 135i
- 2007 BMW 335i
- 2008 BMW 335i
- 2009 BMW 335i
- 2009 BMW 335i xDrive
- 2007 BMW 335xi
- 2008 BMW 335xi
- 2008 BMW 535i
- 2009 BMW 535i
- 2009 BMW 535i xDrive
- 2008 BMW 535xi
FAQ
What does the T1S-B05 fit?
It fits 2007-2009 BMW 135i, 335i and 535i models with the N54 twin-turbo engine.
Is it a twin-disc clutch?
Yes. It is a Mod-Twin modular twin-disc clutch for high-torque applications.
Can it be rebuilt?
Yes. Mod-Twin clutches are fully rebuildable and most components can be ordered separately.

