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  See more parts for Nissan 240SX S13
Select the year of your Nissan 240SX S13:
ACT HD/Perf Street Sprung Kit Nissan 1975-1998 - NX1-HDSS

ACT NX1-HDSS Heavy Duty/Performance Street Sprung Kit

The ACT NX1-HDSS kit is engineered for those seeking a robust clutch solution that balances street performance with durability. It features ACT's renowned Heavy Duty pressure plate and a Performance Street disc, designed specifically for high-demand environments.

Pressure Plate Design

The Heavy Duty pressure plate utilizes an exclusive diaphragm design that enhances clamp load while minimizing deflection, ultimately extending the lifespan of the clutch. Each diaphragm undergoes a rigorous four-stage heat-treating process, ensuring superior performance under stress. Precision cover stampings add rigidity and consistency, crucial for maintaining performance during aggressive driving.

Performance Street Disc

The Performance Street disc is constructed with premium organic materials that boast a high copper content, optimizing heat transfer and reducing fade during operation. The steel-backed lining increases burst strength and overall durability. With a reduced marcel, this disc allows for quicker shift action, making it an excellent match for the Heavy Duty pressure plate.

Installation Notes

For detailed installation instructions, refer to the installation guide.

Features

  • Light to moderate pedal effort with smooth engagement
  • Extended friction life due to the exclusive diaphragm design
  • Engineered for high heat tolerance and reduced fade
  • Suitable for both street and race applications
  • 100% clamp load tested for reliability at high RPMs

Specifications

  • Clutch Master Cylinder Included: No
  • Grease Included: Yes
  • Grade Type: Performance
  • Pilot Bushing Included: Yes
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter: 8.8 in (224 mm)
  • Disc Material: Organic
  • Input Spline Quantity: 24
  • Input Shaft Diameter: 1 in
  • Alignment Tool Included: Yes
  • Disc Type: Sprung
  • Pressure Plate Bolts Included: No
  • Clutch Slave Cylinder Included: No
  • Flywheel Bolts Included: No
  • Product Weight: 14.6 lbs
  • Torque Capacity: 275 ft/lbs
  • Torque Capacity Over OE: 0.54

Fitment

The NX1-HDSS is confirmed to fit the following models:

  • Nissan 240SX S13 (1989-1990)
  • Nissan 240SX S14 (1995-1998)
  • Nissan 280Z (1975-1978)
  • Nissan 280ZX (1979-1983)
  • Nissan 620 (1975-1979)
  • Nissan 720 (1985-1986)
  • Nissan Axxess (1990)
  • Nissan Maxima (1982-1984)

Other Part Numbers:
ACT #actNX1-HDSS

Proposition 65

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

Vehicle
1989-1990
 Nissan 240SX S13
1995-1998
 Nissan 240SX S14
1975-1978
 Nissan 280Z
1979-1983
 Nissan 280ZX
1975-1979
 Nissan 620
1985-1986
 Nissan 720
1990
 Nissan Axxess
1982-1984
 Nissan Maxima

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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