185MM M50 P3

Technical Parameters

Product Advantage

• Triple Plate Design, Maximum Holding Capacity

This 7.25" triple plate racing clutch kit​ stacks three 185 mm friction discs between a billet pressure ring and twin floater plates, multiplying friction surfaces far beyond any single-disc upgrade. Holding capacity is engineered for extreme builds, reliably supporting output well past 1000 hp​ on heavily turbocharged M50, M52 and M54 engines. Spreading clamp load across three interfaces also keeps pedal effort manageable, so a serious car can still be driven to the track without drama.

• Billet Aluminum Construction, Lighter and Cooler

Cover, pressure ring and floater plates are CNC-machined from aerospace-grade billet aluminum rather than stamped steel, making this 185mm billet aluminum clutch​ markedly lighter than any factory dual-mass assembly. The reduction in rotating mass shows up immediately as sharper throttle response. Aluminum also draws heat away from the friction faces far more efficiently, so repeated launches and long circuit sessions produce visibly less fade, and the solid-billet cover resists flex under high clamp load.

• Compact 185 mm, Still Low Inertia

Even with three discs, holding diameter down to 185 mm keeps rotating mass concentrated near the crankshaft centreline. The engine still gains and sheds revs quickly, so heel-toe downshifts and throttle blips stay crisp and predictable. That is precisely why serious circuit, drift and time-attack builds — including most BMW E36 E46 325i M3 racing clutch​ conversions — choose a compact triple plate over a bulky single disc. You keep small-clutch responsiveness while carrying capacity that would overwhelm any street single.

• Cerametallic Friction Material, Race-Proven

Each disc is built around a sintered cerametallic friction face developed for competition use. It keeps biting consistently at temperatures that would glaze and slip an organic disc, and delivers predictable, progressive engagement rather than an unpredictable on/off switch. Sprung hubs and heavy-duty drive straps absorb driveline shock to protect the gearbox, while the floater plates release cleanly to prevent drag and hot spots. For cars that see more track time than street time, this is the dependable choice.

• Modular, Rebuildable and Individually Balanced

Three-plate hardware is only worth owning if it can be serviced. Friction discs, floater plates and drive components are individually replaceable, so a rebuild costs a fraction of a complete kit and can be completed between race weekends. Every critical component is CNC-machined under tight tolerance control, dynamically balanced and individually serialised, with flatness and runout verified before dispatch. These units stay smooth well beyond the rev ranges most BMW six-cylinders ever see, and inspection records are available on request.

• Multi-Gearbox Fitment, Complete Kit

This BMW M50 M52 M54 S54 clutch kit​ covers both five- and six-speed applications — ZF320 / ZF320Z (S5D320Z), GS6-53BZ and GS6-37DZ — across popular E36 325i, 328i and M3 builds plus E34, E39, Z3 and E46 swaps, including M52B20. No machining, no adapter plate. Your ZF320Z GS6-53BZ GS6-37DZ triple disc clutch kit​ ships complete with billet flywheel, three discs, floater plates, billet cover, release bearing, premium flywheel bolts.

Product Uses

• High-Horsepower Turbo Street Builds

If your M50, M52 or M54 has been pushed well beyond factory output with a turbo or supercharger kit, a stock clutch will simply let go. This 7.25" triple plate racing clutch kit​ is the natural next step: three 185 mm friction discs handle output far past 700 hp​ without slipping at the top of every gear. Yet pedal effort stays civilised enough that you can still drive the car to work, sit in traffic, and park it in a garage without dreading the clutch leg.

• Circuit Racing and Time Attack

On a circuit, a clutch is asked to do two things repeatedly: launch hard and shift fast. This 185mm billet aluminum clutch​ keeps rotating mass low, so the engine revs and drops quickly between downshifts and heel-toe blips stay precise. The billet cover pulls heat away efficiently, holding pedal feel consistent from the first lap to the last — exactly what endurance sessions and time-attack runs demand from a competition driveline.

• Professional Drifting

Drifting punishes clutches harder than almost any other discipline — clutch kicks, handbrake transitions and repeated shock loads all generate enormous heat. The cerametallic friction faces here keep biting at temperatures that would glaze an organic disc, while sprung hubs absorb driveline shock so the gearbox survives. Because every friction disc is individually replaceable, a rebuild between events costs a fraction of a complete kit.

• Drag Racing and Launch-Focused Builds

For dedicated drag cars, consistency off the line matters more than anything else. The triple-plate assembly delivers predictable, repeatable engagement instead of an unpredictable on/off bite, so you can tune your launch and trust it every pass. Holding capacity is more than adequate for aggressive turbo and nitrous setups, and the billet construction resists the flex and fade that a stamped steel cover suffers under repeated hard launches.

• Engine Swaps and Transmission Conversions

Swapping an M52B20 or an S54 into an older E36, E34 or Z3 chassis usually means the original clutch no longer matches. This kit is engineered to bolt directly to engines paired with ZF320 / ZF320Z five-speeds as well as GS6-53BZ and GS6-37DZ six-speeds, so your BMW M50 M52 M54 S54 clutch kit​ arrives ready to install without custom machining, adapter plates or improvised parts.

• Weekend Track-Day Cars That Still Drive Home

Not every build is a dedicated race car. Many owners want a car that survives a full track day and then drives home under its own power. This ZF320Z GS6-53BZ GS6-37DZ triple disc clutch kit​ suits that role well: manageable pedal effort in traffic, no chatter pulling away from lights, and enough thermal capacity that a full day of sessions produces no noticeable fade. You get genuine race hardware without punishing yourself on the road.

FAQ