# ACT 1991 Mazda Miata HD/Race Sprung 4 Pad Clutch Kit

ZM2-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.

-   "Excellence in Performance", backed by the best one-year warranty in the industry!

This Part Fits:

Year

Make

Model

Submodel

1999

Mazda

Miata

10th Anniversary

1990-1997,1999-2005

Mazda

Miata

Base

1993

Mazda

Miata

LE

2000-2005

Mazda

Miata

LS

1994-1997

Mazda

Miata

M Edition

2004-2005

Mazda

Miata

Mazdaspeed

1991,2000-2003

Mazda

Miata

SE

2003

Mazda

Miata

Shinsen

1997

Mazda

Miata

STO

## Details

- **Price:** 819.91 CAD
- **Vendor:** ACT
- **Type:** Clutch Kits - Single

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 819.91 CAD | In stock |

## Images

- Photo - Primary
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/act-1991-mazda-miata-hd-race-sprung-4-pad-clutch-kit-1)
> Updated: 2026-07-03