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  See more parts for BMW 318i
Select the year of your BMW 318i:
ACT HD/Perf Street Sprung Kit BMW 318 | 323 | 325 | 328 | 330 | 525 | 528 | 530 | M3 | Z3 1991-2003 - BM13-HDSS

Alright, let’s talk about the ACT Heavy Duty/Performance Street Sprung Kit, specifically the BM13-HDSS. If you’re looking to upgrade your clutch setup, this is a solid choice. It features ACT’s most popular heavy-duty pressure plate paired with a street disc that’s been tried and tested by folks who know their way around a BMW. You’ll notice right off the bat that the diaphragm design is a game changer—it cranks up the clamp load, minimizes deflection, and really helps extend the life of your clutch. Plus, every diaphragm goes through a four-stage heat-treating process, which means it’s built to handle some serious heat without breaking a sweat.

The pressure plates are made with precision cover stampings, giving you that extra rigidity and consistency you want when you’re pushing your car hard. The Performance Street discs are no slouches either; they’re crafted from premium organic materials that have a high copper content for better heat transfer. They’ve even got a steel-backed lining for durability and strength, so you can count on them when it matters most. And if you like quick shifts, you’ll appreciate the reduced marcel that lets you shift faster without missing a beat.

Install Instructions:

Features:

  • Light to moderate pedal effort, so it’s not a workout to drive.
  • Smooth engagement that feels good, with just a hint of gear rattle—perfect for spirited driving.
  • Longer friction life thanks to ACT’s unique diaphragm design, making it last longer on the road.
  • Engineered and balanced for reliability at high RPMs—no surprises here.

Specifications:

  • Clutch Master Cylinder Included: No
  • Grease Included: Yes
  • Grade Type: Performance
  • Flywheel Included: Yes
  • Pilot Bushing Included: No
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter: 9.4 in (240 mm)
  • Disc Material: Organic
  • Input Spline Quantity: 10
  • Input Shaft Diameter: 1.125 in
  • Alignment Tool Included: Yes
  • Disc Type Sprung Solid: Sprung
  • Pressure Plate Bolts Included: Yes
  • Clutch Slave Cylinder Included: No
  • Flywheel Bolts Included: Yes
  • Pilot Bearing Included: Yes
  • Flywheel Type: Prolite
  • Product Weight: 24.8 lbs
  • Torque Capacity: 465 ft/lbs
  • Torque Capacity Over OE: 0.52

Notes:

  • This is a conversion kit that includes an ACT Prolite flywheel. You need to use the ACT flywheel that comes with it. Flywheel bolts and pressure plate bolts are included, so you’re all set there.

Products Fitment:

  • BMW 318i 1996-1999
  • BMW 318is 1996-1999
  • BMW 318ti 1996-1999
  • BMW 323Ci 2000
  • BMW 323i 1998-2000
  • BMW 323is 1998-1999
  • BMW 325Ci 2001-2003
  • BMW 325i 1992 & 2001-2003
  • BMW 325is 1992
  • BMW 325xi 2001-2003
  • BMW 328Ci 2000
  • BMW 328i 1996-2000
  • BMW 328is 1996-1999
  • BMW 330Ci 2001-2003
  • BMW 330i 2001-2003
  • BMW 330xi 2001-2003
  • BMW 525i 1991-1995 & 2001-2003
  • BMW 528i 1997-2000
  • BMW 530i 2001-2003
  • BMW M3 1996-1999
  • BMW Z3 1996-2002
  • BMW Z3 M 1998-2002

Other Part Numbers:
ACT #actBM13-HDSS

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1996-1999
 BMW 318i
1996-1999
 BMW 318is
1996-1999
 BMW 318ti
2000
 BMW 323Ci
1998-2000
 BMW 323i
1998-1999
 BMW 323is
2001-2003
 BMW 325Ci
1992, 2001-2003
 BMW 325i
1992
 BMW 325is
2001-2003
 BMW 325xi
2000
 BMW 328Ci
1996-2000
 BMW 328i
1996-1999
 BMW 328is
2001-2003
 BMW 330Ci
2001-2003
 BMW 330i
2001-2003
 BMW 330xi
1991-1995, 2001-2003
 BMW 525i
1997-2000
 BMW 528i
2001-2003
 BMW 530i
1996-1999
 BMW M3
1996-2002
 BMW Z3
1998-2002
 BMW Z3 M

ACT Banner

ACT ? Advanced Clutch Technology | Clutch Kits & Flywheels Built to Handle Real Power

If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.

ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.

Why ACT? Because Power Without Control Is Useless.
  • Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
  • Faster Engagement Stronger pressure plates for better bite off the line
  • Better Pedal Feel Balanced response without going full race-car stiff
  • Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
  • No Guesswork Direct-fit applications, no fabbing, no hassle
ACT Clutch Kits and Flywheels Fit the Cars Enthusiasts Build

ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.

Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.

What ACT Offers:
  • Performance Clutch Kits From HD street kits to twin-disc race systems
  • Clutch Discs 6-puck, full-face, rigid or sprung to match your style
  • Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
  • Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
  • Complete Hardware Kits Everything you need for a proper install
Performance Tested. Driver Approved.

ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.

Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.

ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.

ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.

ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.

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