SKU: 2964620883

NS4-HDG6 - HD/Race Sprung 6 Pad

Sale price$246.60 Regular price$274.00
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Description

NS4-HDG6 - HD/Race Sprung 6 PadSpecifications: Item Description: HD Race Sprung 6 Pad Product Weight (lbs.): 15. 4 Torque Capacity (ft lbs.): 390 Torque Capacity Over OE: 74% Disc Material: Ceramic Clutch Disc Diameter (Inches): 8. 8 Clutch Disc Diameter (Millimeters): 224 Input Shaft Diameter (inches): 1 Pressure Plate Type: Heavy Duty Warranty: 12 Months Description: The NS4 HDG6 kit features ACT's popular Heavy Duty pressure plate, designed to increase clamp load, reduce

Specifications:

  • Item Description: HD/Race Sprung 6 Pad
  • Product Weight (lbs.): 15.4
  • Torque Capacity (ft/lbs.): 390
  • Torque Capacity Over OE: 74%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 8.8
  • Clutch Disc Diameter (Millimeters): 224
  • Input Shaft Diameter (inches): 1
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months

Description: The NS4-HDG6 kit features ACT's popular Heavy Duty pressure plate, designed to increase clamp load, reduce deflection, and maximize clutch life. These pressure plates undergo a four-stage heat-treating process for unparalleled performance and have precision cover stampings for rigidity and consistency.

Paired with the Heavy Duty pressure plate is ACT's 6-pad, spring-centered race disc, featuring a spring-center to properly damp torsional vibrations and resist failure under harsh conditions. The spring retainers provide spring support, reduce stress concentrations, and increase strength and reliability. This setup results in light to moderate pedal effort, aggressive engagement, and mild gear rattle.

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, uses select ceramic friction materials for high heat tolerance and maximum performance
  • Recommended Use: Recommended for high horsepower street or race use
  • ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Vehicle Fitment: Compatible with 1989-1990 Nissan 180SX Type I and Type II [JDM] models equipped with a 1.8L I4 FI engine.

PROP 65 WARNING: This product can expose you to chemicals including carbon black, glass wool fibers, and silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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: 2964620883

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Al
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★★★★★ 4
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The ball bearings make them roll smooth. I've put plenty of pressure through them and no bending or breaking. The middle sized unit is probably the most useful. The small one has it's uses but can act like a pizza cutter and easily go through sound deadening mats. The large one has a little too much surface area to get a good crush on the mats.
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Reviewed in the United States on August 31, 2025
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Calvin Stafford
Belleville, US
★★★★★ 5
Works great, good price
Makes installing sound deadening panels a breeze. A little elbow grease required but makes for perfect contact with the sheet metal and butyl.
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Jare
San Leandro, US
★★★★★ 5
Well Made Tools!
I have been installing Kilmat in my early 74 Datsun 260Z restoration and these tools are very nice for the price. I like them because they actually have ball bearings and move smoothly over the matting. The size selection is very handy as well and even has some nice finished wooden handles.
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Placeholder
Chelsea, US
★★★★★ 5
Perfect applicators tool
Tool worked great. Bonds sound proofing to metal perfectly.
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Reviewed in the United States on April 9, 2026
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this guy
Bozeman, US
★★★★★ 5
Must have
These things a freaking AWESOME! If you're doing a big sound deadner job, you need thees! The 3 different sizes are perfect for the different shapes in the floor pans. Well built, good quality and they have a nice weight to them. Just buy them and thank me later. For $15.00 you can't go wrong.
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