SKU: 84474126204

NS4-HDR4 - HD/Race Rigid 4 Pad

Sale price$208.35 Regular price$231.50
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

NS4-HDR4 - HD/Race Rigid 4 PadSpecifications: Item Description: HD Race Rigid 4 Pad Product Weight (lbs.): 13. 5 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 HDR4 kit features ACT's popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates utilize an

Specifications:

  • Item Description: HD/Race Rigid 4 Pad
  • Product Weight (lbs.): 13.5
  • 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-HDR4 kit features ACT's popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates utilize an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. These pressure plates undergo a four-stage heat-treating process for superior performance. Precision cover stampings provide rigidity and consistency.

Paired with the Heavy Duty pressure plate is ACT's 4-pad rigid race disc, made with high-quality ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. This lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. The 4-pad rigid race disc provides aggressive engagement and increased gear rattle, making it well-suited for smaller engines.

Features:

  • Feel: Light to moderate pedal effort, aggressive engagement, increased gear rattle
  • Life: Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear
  • Quality: Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
  • Recommended Use: Recommended for race use only
  • 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: 84474126204

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Scoot.man
Natrona Heights, US
★★★★★ 5
Good quality
Good quality replacement parts
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Reviewed in the United States on October 1, 2024
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noland11
Dallas, US
★★★★★ 5
Supplies
I haven't use any of them yet but looks good
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Reviewed in the United States on September 17, 2024
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Sisi
Battle Creek, US
★★★★★ 5
I highly recommend it
Color: White, Size: D20Plus, Color: White, Size: D20Plus
This is an excellent product and I am very happy with it. The suction power is strong , The automatic station makes cleaning almost hands-free, which is very convenient. Navigation and mapping are accurate, and it moves around furniture smoothly. It handles daily dust, dirt, and pet hair very well. Setup was quick and the app is easy to use. Overall, this robot saves a lot of time and works reliably every day. Definitely worth the purchase
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Reviewed in the United States on April 5, 2026
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Yu-Chun Cheng
Whiting, US
★★★★★ 5
Really nice and affordable vacuum!
Color: White, Size: D20Plus, Color: White, Size: D20Plus
I’ve been looking to upgrade my vacuum robot for a while. I came across this vacuum, it is affordable and comes with the features that I’m looking for. The strong suction, hair detangle brush (critical if you have long hair) and easy mapping. It honestly made daily cleaning so much easier. The suction power is seriously impressive. It picks up dust and crumbs and I love how it auto emptied the dust bin. Also I have hard floor at home and I’m loving the mopping function. I love how I don’t have to vacuum and mop the floor by myself anymore! Would recommend this robot to people that are looking for an affordable option!
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Reviewed in the United States on March 3, 2026
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R. G.
New York, US
★★★★★ 4
Decent vacuum/mop for the price
Color: Black, Size: D20Plus, Color: Black, Size: D20Plus
We have had this vacuum for a couple of months now and can now give it an honest review. The good: cleans well, good suction power, durable, manages changes in floor height fairly well, attractive (for a robot vacuum), programmable, great mapping The bad: noisy, muffled voices, cumbersome to program initially, app is not the most user-friendly, does not like rugs with a higher nap. Some tips: 1) If you have pets, be cautious of the cleaning solution. Make sure it's pet safe. 2) For pets and children- Remember to pick up any toys before the cleaning cycle begins. The vacuum will try to eat smaller, flat or string toys, and you will end up with a wrapped brush notification. 3) When mapping for the first time, remember to close doors to any rooms or exterior areas you do not want vacuumed or mopped.
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Reviewed in the United States on April 2, 2026

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