SKU: 82831614568

Z66-HDG4 - HD/Race Sprung 4 Pad

Sale price$265.50 Regular price$295.00
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Z66-HDG4 - HD/Race Sprung 4 PadProduct Description: HD Race Sprung 4 Pad Clutch Kit The HD Race Sprung 4 Pad Clutch Kit, designated as Z66 HDG4, is engineered by ACT to provide exceptional performance in high horsepower street or race applications. Weighing 13. 7 pounds, this kit boasts a torque capacity of 355 ft lbs, exceeding OE standards by 87%. It features a ceramic clutch disc material with an 8. 8 inch (224mm) diameter and an input shaft diameter of 0. 9375 inches. At its

Product Description: HD/Race Sprung 4 Pad Clutch Kit

The HD/Race Sprung 4 Pad Clutch Kit, designated as Z66-HDG4, is engineered by ACT to provide exceptional performance in high horsepower street or race applications. Weighing 13.7 pounds, this kit boasts a torque capacity of 355 ft/lbs, exceeding OE standards by 87%. It features a ceramic clutch disc material with an 8.8-inch (224mm) diameter and an input shaft diameter of 0.9375 inches.

At its core, this kit features ACT's renowned Heavy Duty pressure plate, utilizing an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. Each diaphragm undergoes a meticulous four-stage heat-treating process for unmatched performance. Precision cover stampings ensure rigidity and consistency for reliable operation.

Paired with the pressure plate is ACT's 4-pad spring-centered race disc, featuring 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. The 4-pad spring-centered race disc delivers harsher engagement but faster shifting, making it ideal for smaller disc sizes in smaller engines.

Key Features:

  • Feel: Light to moderate pedal effort, aggressive engagement, with OE to mild gear rattle.
  • Life: Moderate friction life, extended by ACT's exclusive diaphragm design.
  • Quality: Carefully engineered, precisely assembled, accurately balanced, using select ceramic friction materials for high heat tolerance and maximum performance.
  • Recommended Use: Specifically designed for high horsepower street or race use, catering to performance enthusiasts seeking uncompromising performance.
  • 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 wide range of vehicles, including various Mazda and Ford models from the 1993 to 2003 model years. Compatible vehicles include:

  • 1993-2003 Ford Probe Base, SE
  • 1993-2003 Mazda 626 DX, LX
  • 1993-2003 Mazda MX-6 Base
  • 2001-2003 Mazda Protege DX, ES, LX, Mazdaspeed
  • 2002 Mazda Protege5 Base

For enthusiasts demanding uncompromising performance and reliability in high horsepower applications, the HD/Race Sprung 4 Pad Clutch Kit from ACT is the ultimate choice, delivering unmatched performance both on the street and the track.

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: 82831614568

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4.4 ★★★★★
Based on 27 reviews
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Verified Purchase
Chancee
Port Orchard, US
★★★★★ 5
Sturdy, easy, beautiful
Size: 16 Inch
Put these on a coffee table top and it was the perfect combination. It gives an industrial accent to a wood-centered room. Love them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 7, 2025
S
Verified Purchase
Stephanie Taylor
Lowell, US
★★★★★ 1
Stand
Size: 16 Inch
Didn’t work for what I wanted them for
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
D
Verified Purchase
dwheel
Louisville, US
★★★★★ 3
There is no side to side stability
Size: 28 Inch
This product was easy to assemble and install and came with all parts. The product itself is very sturdy, looks good with a nice industrial aesthetic BUT - there is ZERO stability side to side (lengthwise) as the plates which attach to the wood are too small. I have them set closer than the picture so it is not an issue of being too far apart. If anyone else had this problem AND FIGURED OUT A FIX FOR IT - please share!!
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Reviewed in the United States on June 5, 2023
K
Verified Purchase
Kindle Customer
Phoenix, US
★★★★★ 5
Love those legs
Size: 28 Inch
People love the look of these legs .. they are arty and cool
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Reviewed in the United States on May 27, 2025
D
Verified Purchase
Doogie Howser
Massapequa, US
★★★★★ 5
Fairly stable. Good value for the price
Size: 16 Inch, Size: 16 Inch
Great set of stands. You have to tighten them pretty snugly to minimize wobble. Given they are metal they’ll have a little bit more give than solid wood. Even so, a tall desk I built with them remains stable and level.
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Reviewed in the United States on December 22, 2025

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