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  See more parts for Infiniti G20
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ACT HD/Race Rigid 4 Pad Kit Nissan | Infiniti 1991-2006 - NX9-HDR4

ACT NX9-HDR4 Heavy Duty 4 Pad Clutch Kit

If you're looking to upgrade your clutch system for serious performance, the ACT NX9-HDR4 Heavy Duty 4 Pad Clutch Kit is engineered to deliver. This kit features ACT's renowned Heavy Duty pressure plate, designed specifically to enhance clamp load, minimize deflection, and ultimately extend the lifespan of your clutch. With a four-stage heat-treating process, each diaphragm is built for exceptional performance, ensuring you can push your vehicle to its limits with confidence.

Fitment

The NX9-HDR4 is compatible with the following models:

  • Infiniti G20 (1991-1996 & 1999-2002)
  • Nissan 200SX (1995-1998)
  • Nissan NX (1991-1993)
  • Nissan Sentra (1991-2006)

Performance Features

  • Light to moderate pedal effort with aggressive engagement for a responsive feel.
  • Moderate friction life, enhanced by ACT's exclusive diaphragm design.
  • Constructed with high-quality ceramic friction materials for superior heat tolerance.
  • Recommended for race use, ensuring you get the performance you demand on the track.
  • 100% clamp load tested and dynamically balanced for reliability at high RPMs.

Technical Specifications

  • Clutch Disc Diameter: 8.4 in (214 mm)
  • Disc Material: Ceramic
  • Input Spline Quantity: 18
  • Input Shaft Diameter: 0.8125 in
  • Pressure Plate Type: Heavy Duty
  • Torque Capacity: 310 ft/lbs (0.77 over OE)
  • Product Weight: 10 lbs
  • Alignment Tool Included: Yes
  • Grease Included: Yes
  • Pilot Bushing Included: Yes
  • Release Bearing Included: Yes

Installation Instructions

Ready to install? For detailed installation instructions, CLICK HERE.

Customer Feedback

“I installed the ACT NX9-HDR4 in my 1995 Nissan 200SX, and the difference is night and day. The engagement is crisp, and I'm able to shift faster than ever. It does take some getting used to with the harsher engagement, but it’s worth every penny for the performance boost!”

Upgrade your clutch system with the ACT NX9-HDR4 and experience the difference in your ride. Perfect for those who demand performance and durability, this clutch kit is built to handle the rigors of racing while providing the responsiveness you need on the street.

Other Part Numbers:
ACT #actNX9-HDR4

Proposition 65

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

Vehicle
1991-1996, 1999-2002
 Infiniti G20
1995-1998
 Nissan 200SX
1991-1993
 Nissan NX
1991-2006
 Nissan Sentra

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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