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ACT BMW Drivetrain Parts

Building your perfect BMW is more than just adding horsepower and stiff suspension. Your drivetrain needs attention in order to deliver power effectively. Most BMWs feature comfortable clutch discs, heavy flywheels, long shifter throws, and open differentials. The drivetrain transmits power to the wheels, but can also be a source of power loss when it is designed for comfort rather than performance. Everything on this page will help you improve your power delivery and driving experience by providing custom Limited Slip Differentials, Short Shift Conversions, Performance Clutch Discs, Lightweight Flywheels, and anything else your BMW needs to be the perfect driving experience.

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HD/Perf Street Sprung
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACT - Corporate Logo
T#:14221794
Part#: BM17-HDSS
In Stock at Vendor
$ 855.00 USD
Free Shipping on orders $49 and up
BM17-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's Performance Street discs feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs have reduced marcel for faster shift action to complement ACT pressure plates, with increased strength and reliability.
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HD/Race Sprung 4 Pad
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Must be used with ACT Flywheel 601010 or 601015
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T#:567301
Part#: BM9-HDG4
Ships in 6 Business Days
$ 905.00 USD
Free Shipping
$ 905.00 USD
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BM9-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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ACT Heavy Duty 4-Pad Rigid Racing Clutch Kit - Mini Cooper R52/53 1.6...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACT - Corporate Logo
T#:552758
Part#: BM2-HDR4
Ships in 6 Business Days
$ 621.00 USD
Free Shipping
$ 621.00 USD
Free Shipping

Advanced Clutch Technology (ACT) designs, engineers and develops products by leveraging decades of track and performance street experience. Advanced CAD, FEA simulation, and CAM tools help ensure highly optimized performance, reliability, and repeatability. These key advantages are produced by combining the best engineering and design methodologies with the latest in materials and manufacturing techniques.

ACT clutch kits stand unequaled in terms of consistent pedal feel, high torque capacity, long wear life and durability. In-house manufacturing is critical in tuning components specifically to each individual application while maintaining the predictable ACT pedal feel across the entire catalog.

This clutch kit features a Heavy Duty pressure plate and R4 racing clutch disc

**Must be used with an ACT XACT Streetlite Flywheel, Part number: 600315**

The heavy duty pressure plate included offers a 20-50% clamp load increase, stock-moderate  pedal feel, and heat treated diaphragms for increased strength and performance.

Next in this kit is the R4 racing clutch disc. This disc is an unsprung, rigid disc with 4 pads that is best suited for drag and road racing. The R4 pads are composed of ceramic friction materials and the disc has a chome-moly hub that is heat treated for additional strength under high load engagements. Over stock, this disc is much better for faster shifting and significantly higher torque loads. Unlike the stock disc, this racing disk has a slightly shortened life span due to its rigid design and pad composition. This in turn is offset thanks to its fast, aggressive engagement for track use.

Specifications:

  • Part Number: BM2-HDR4
  • Description: HD/Race Rigid 4 Pad
  • Torque Capacity (ft/lbs.): 345
  • Torque Capacity Over OE: 54%
  • Disc Type: Race Disc
  • Spline Count: 14
  • Spline Size (in.): 1
  • Disc Diameter (in.): 8.4
  • Disc Diameter (mm.): 214
  • Pressure Plate Type: Heavy Duty
  • Product Weight (lbs.): 10.4
  • Kit Contents: 4214022ATGM06B012RB131
  • Warranty (Product Warranty): One (1) Year from Retail Purchase
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6 Pad Sprung Race Disc BMW
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACT - Corporate Logo
T#:26538304
Part#: 6240535A
In Stock at Vendor
19% off MSRP $ 311.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 251.99 USD
19% off MSRP
$ 311.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 251.99 USD
The clutch system provides aggressive engagement, rapid shifts, and manageable gear noise. With premium ceramic friction elements, it guarantees durability, moderate wear, and superior heat endurance. Incorporating wraparound spring windows, strengthened retainer stampings, and a heat-treated, spring steel drive plate, it ensures robust reinforcement, stress reduction, and improved reliability. Designed for high-performance street or race cars, it exhibits exceptional burst strength and an impressive 28% boost in torque capacity over standard organic materials.
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6 Pad Sprung Race Disc BMW
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACT - Corporate Logo
T#:26638204
Part#: 6240530
In Stock at Vendor
$ 268.00 USD
$ 268.00 USD
The 6240530 represents a top-tier performance street disc and stands out as one of the most sought-after options available. Crafted with premium organic materials boasting a high copper content, it ensures superior heat transfer capabilities. These performance street discs facilitate swift shifting and seamless engagement, delivering a satisfying driving experience. Engineered with a reduced marcel, they offer accelerated shift action, perfectly complementing ACT pressure plates. ACT spring-centered assemblies incorporate bushings and cone springs akin to factory clutch discs, introducing frictional dampening that enhances clutch longevity and minimizes noise. Experience quiet operation alongside heightened durability and reliability with this exceptional street disc.
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