ACT NX4-XTSS Xtreme Performance Street Sprung Clutch Kit for 91-94 Nissan 240SX

Vehicle Fitment

• 1991-1994 Nissan 240SX (S13, 2.4 L I4)

Features

• Xtreme diaphragm pressure plate for high clamp load and rigidity
• Four-stage heat-treated diaphragm for long-term durability
• Performance street disc made from premium organic material
• High copper content in friction material for better heat transfer
• Sprung hub design for smoother engagement and reduced drivetrain shock
• Reduced marcel in the disc for faster and more positive engagement
• Moderate to heavy pedal effort with smooth engagement feel
• Quiet operation with OE-to-mild gear rattle

Specifications

• Part number: NX4-XTSS
• Torque capacity: ~370 ft-lbs
• Clutch disc diameter: 224 mm / 8.8"
• Input shaft: 1.000" diameter, 24 splines
• Kit weight: ~14.6 lb

Included Components

• 1 x Xtreme diaphragm pressure plate
• 1 x Sprung performance street clutch disc
• 1 x Alignment tool
• 1 x Pilot bushing
• 1 x Release bearing

Product Description

The **ACT NX4-XTSS** clutch kit is a performance-oriented upgrade for the Nissan 240SX S13 (1991-1994). It features a high-clamp Xtreme diaphragm pressure plate, built to deliver strong biting force and excellent durability under spirited driving or light racing. The four-stage heat treatment ensures the diaphragm retains consistent clamp load even after repeated use.

Paired with a sprung, performance street disc made of high-copper organic material, the kit delivers smooth engagement and reliable torque holding with reduced shock to the drivetrain. The sprung hub helps absorb engine vibrations, making driving more refined. With a rated torque capacity of ~370 ft-lbs, this clutch can handle power increases while maintaining daily drivability.

This kit is dynamically balanced for high-RPM reliability and is fully clamp-load tested to guarantee performance consistency. Ideal for street performance builds, the NX4-XTSS strikes a balance between durability, responsiveness, and comfort - giving you a reliable and strong clutch upgrade for your 240SX.