ACT Heavy Duty Performance Street Rigid Clutch Kit

Part #: BM14-HDSD

Overview

The ACT Heavy Duty Performance Street Rigid Clutch Kit is designed to enhance the durability and performance of your BMW 135, 335, 535, 435, or Z4 (07). This kit features ACT's most popular Heavy Duty pressure plate, engineered to provide increased clamp load and reduced deflection for improved clutch engagement and longevity. Crafted for enthusiasts who demand reliable performance during spirited driving or daily use, this clutch kit offers a balanced combination of strength, responsiveness, and smooth operation. Its construction ensures consistent engagement and durability, making it an ideal upgrade for drivers seeking a dependable clutch solution that supports aggressive driving styles without sacrificing streetability.

Key Features

This clutch kit combines advanced materials and precision engineering to deliver reliable performance and extended service life. Key features include:

• Heavy Duty pressure plate with exclusive diaphragm design for increased clamp force
• Four-stage heat-treating process on all diaphragms for enhanced durability
• Precision cover stampings to ensure rigidity and consistent engagement
• Performance street rigid-hub discs with high-quality organic friction materials
• Designed to withstand higher torque loads while maintaining smooth pedal feel
• Optimized for street and light performance applications
• Easy installation with factory-like fitment for compatible BMW models

Construction & Design

The ACT Heavy Duty Clutch Kit features a robust pressure plate constructed from high-strength materials, with a focus on heat resistance and structural integrity. The diaphragm springs are meticulously heat-treated to maximize lifespan and performance consistency. The organic friction discs are engineered to provide reliable grip and smooth engagement, supporting both daily driving and spirited performance.

Driving Feel & Feedback

This clutch kit offers a firm yet manageable pedal feel, providing confident engagement without excessive pedal effort. It helps improve throttle response and clutch modulation, making it suitable for drivers who want a more responsive driving experience while maintaining street comfort.

Installation & Fitment

Installation should be performed by a qualified technician familiar with BMW drivetrain components. Proper alignment and torque specifications are essential for optimal performance and longevity. Fitment details should be verified against the vehicle's specific model and year to ensure compatibility.

What’s Included

The package includes the heavy-duty pressure plate, organic clutch disc, release bearing, and all necessary hardware for installation, providing everything needed for a complete upgrade.