SKU: 29455714963

NS4-HDG4 - HD/Race Sprung 4 Pad

Sale price$233.10 Regular price$259.00
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

NS4-HDG4 - HD/Race Sprung 4 PadSpecifications: Item Description: HD Race Sprung 4 Pad Product Weight (lbs.): 14. 9 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 HDG4 kit features ACT's popular Heavy Duty pressure plate designed to increase clamp load, reduce

Specifications:

  • Item Description: HD/Race Sprung 4 Pad
  • Product Weight (lbs.): 14.9
  • 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-HDG4 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 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. 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: 29455714963

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Diane R
Grantham, US
★★★★★ 5
Very nice glasses
Color: Brown, Lens Width: 37 Millimeters
These sunglasses are the best glasses I have ever owned. They came with a really nice case. Nice looking, fit very nicely and reasonably priced. I would have gotten a couple more pairs but they sold out. I highly recommend these glasses.
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Reviewed in the United States on December 5, 2025
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Diane
West Palm Beach, US
★★★★★ 5
stunning
Color: Gold, Lens Width: 36 Millimeters
stunning
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Reviewed in the United States on May 14, 2026
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Barbara S
Waukegan, US
★★★★★ 4
great glasses
Color: Brown, Lens Width: 37 Millimeters
daughter loved them!
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Reviewed in the United States on February 27, 2026
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Rebecca
Cuba, US
★★★★★ 5
Stylish and good fit.
Color: Brown, Lens Width: 37 Millimeters
Very pretty, and they’re the perfect size for my face, sitting comfortably on my face. No tilting to the side like some glasses I’ve worn.
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Reviewed in the United States on July 20, 2025
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Safirentx
Charlottesville, US
★★★★★ 5
Harley Davidson Stylish Sunglasses
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Love these stylish sunglasses. Harley Davidson never disappoints. Buy them. You deserve them!
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Reviewed in the United States on July 30, 2025

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