SKU: 10911873352

ZM2-HDG4 - HD/Race Sprung 4 Pad

Sale price$252.90 Regular price$281.00
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Description

ZM2-HDG4 - HD/Race Sprung 4 PadProduct Description: HD Race Sprung 4 Pad Clutch Kit The HD Race Sprung 4 Pad Clutch Kit, identified as ZM2 HDG4, represents a pinnacle of performance engineering by ACT. Weighing 12. 4 pounds, this kit offers a torque capacity of 310 ft lbs, surpassing OE standards by an impressive 74%. Crafted with a ceramic disc material, it features a clutch disc diameter of 8. 8 inches (224mm) and an input shaft diameter of 0. 9375 inches. At its core lies ACT's

Product Description: HD/Race Sprung 4 Pad Clutch Kit

The HD/Race Sprung 4 Pad Clutch Kit, identified as ZM2-HDG4, represents a pinnacle of performance engineering by ACT. Weighing 12.4 pounds, this kit offers a torque capacity of 310 ft/lbs, surpassing OE standards by an impressive 74%. Crafted with a ceramic disc material, it features a clutch disc diameter of 8.8 inches (224mm) and an input shaft diameter of 0.9375 inches.

At its core lies ACT's most popular Heavy Duty pressure plate, renowned for its exclusive diaphragm design. This design enhances clamp load, reduces deflection, and maximizes clutch life. Each diaphragm undergoes a rigorous four-stage heat-treating process, ensuring unparalleled performance. Precision cover stampings provide rigidity and consistency, essential for enduring performance under extreme conditions.

The clutch kit incorporates a 4-pad spring-centered race disc, engineered to withstand harsh conditions. The spring-centered design effectively dampens torsional vibrations, ensuring quieter operation and resistance to failure. ACT's spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability.

Key Features:

  • Feel: Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle.
  • Life: Moderate friction life, extended by ACT's exclusive diaphragm design.
  • Quality: Carefully engineered, precisely assembled, accurately balanced, employing select ceramic friction materials for high heat tolerance and maximum performance.
  • Recommended Use: Ideal for high horsepower street or race applications.
  • ACT Difference: Rigorously tested, ensuring 100% clamp load and dynamically computer-balanced for smooth operation even at high RPMs.

Vehicle Fitment: This clutch kit is compatible with a range of Mazda Miata models spanning from 1990 to 2005, including various trim levels equipped with either 1.6 L4 or 1.8 L4 gasoline engines. Here's a list of compatible models along with their respective engine specifications:

  • 1990-1997: Mazda Miata Base (1.6 L4 GAS FI 1597cc | DOHC), SE (1.6 L4 GAS FI 1597cc | DOHC), LE (1.6 L4 GAS FI 1597cc | DOHC), STO (1.8 L4 GAS FI 1839cc | DOHC)
  • 1994-1997: Mazda Miata M Edition (1.8 L4 GAS FI 1839cc | DOHC)
  • 1999-2005: Mazda Miata 10th Anniversary (1.8 L4 GAS FI 1839cc | DOHC), LS (1.8 L4 GAS FI 1839cc | DOHC), SE (1.8 L4 GAS FI 1839cc | DOHC), Shinsen (1.8 L4 GAS FI 1839cc | DOHC), Mazdaspeed (1.8 L4 GAS FI 1839cc | DOHC)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 10911873352

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Daniel Jackson
Bozeman, US
★★★★★ 5
Nice mat
Color: Green
Needed it for class and this was nice and big only thing is that the sling doesn’t fit around my body that’s it but it’s worth it and cheap but is good to use
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Reviewed in the United States on April 9, 2026
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GregorioG
Omaha, US
★★★★★ 3
Tacky synthetic feel.
Color: Black
The material feels tacky. Not quite sticky but definitely not a good feel to it. Feels very synthetic and unnatural.
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Reviewed in the United States on June 8, 2026
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Laura Nanfra
Lexington, US
★★★★★ 5
Non-slip portable yoga mat
Color: Blue
This is the best yoga mat. I tried so many and this one is easy to travel with and so nice. Non-slip. Excellent choice
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Reviewed in the United States on March 24, 2026
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David P.
Lake Worth, US
★★★★★ 5
Excellent non-slip wide mat
Color: Navy Blue
I've used this for 2 months now and it's been a great buy. Extra wide but not bulky at all. The grippy ridges on both sides help a lot. Excellent overall and good quality for medium thickness.
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Reviewed in the United States on June 4, 2026
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Cassidy Family
Charlottesville, US
★★★★★ 5
Highly recommend!
Color: Navy Blue
This mat is amazing. It is super thick and great for sensitive knees. Very good grip. Worth every penny. Highly recommend!
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Reviewed in the United States on June 3, 2026

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