SKU: 55950756366

SC1-HDR4 - HD/Race Rigid 4 Pad

Sale price$222.75 Regular price$247.50
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

SC1-HDR4 - HD/Race Rigid 4 PadSpecifications: Item Description: HD Race Rigid 4 Pad Product Weight (lbs.): 11. 1 Torque Capacity (ft lbs.): 305 Torque Capacity Over OE: 69% Disc Material: Ceramic Clutch Disc Diameter (Inches): 8. 3 Clutch Disc Diameter (Millimeters): 212 Input Shaft Diameter (inches): 0. 9375 Pressure Plate Type: Heavy Duty Warranty: 12 Months Description: The SC1 HDR4 kit features ACT's most popular Heavy Duty pressure plate paired with a 4 pad rigid race disc.

Specifications:

  • Item Description: HD/Race Rigid 4 Pad
  • Product Weight (lbs.): 11.1
  • Torque Capacity (ft/lbs.): 305
  • Torque Capacity Over OE: 69%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 8.3
  • Clutch Disc Diameter (Millimeters): 212
  • Input Shaft Diameter (inches): 0.9375
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months

Description: The SC1-HDR4 kit features ACT's most popular Heavy Duty pressure plate paired with a 4-pad rigid race disc. ACT Heavy Duty pressure plates utilize an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. Each diaphragm undergoes a four-stage heat-treating process for unparalleled performance. Precision cover stampings provide rigidity and consistency. The 4-pad rigid race disc is made with high-quality ceramic friction materials and features a chrome-moly hub that is heat-treated for strength and durability. Its lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. This disc is well-suited for smaller disc sizes in smaller engines.

Key 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:

  • Fitment Info:
    • Application: Engine
    • Compatible Models:
      • 2008-2014 Scion xD Base 1.8 L4 GAS FI 1798cc

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: 55950756366

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Anna Revels
Belleville, US
★★★★★ 5
Pillow
Size: King (Pack of 1)
Love it! Great support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
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Tracy V.
Lake Worth, US
★★★★★ 1
Doesn't last long
Size: King (Pack of 1), Size: King (Pack of 1)
I have only had this pillow for 8 month and it is flat and not comfortable anymore. I sent the company an email and they never responded. I do now recommend that you buy this pillow.
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Reviewed in the United States on January 10, 2024
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jimmy egan
Battle Creek, US
★★★★★ 2
The pillows have a chemical smell
Size: King (Pack of 1)
I bought two Marlow pillows a while ago. They are great pillows. The two new Marlow pillows I just purchased have a chemical odor. The manufacture date is Sept. 2024. I have them airing out hoping the smell will dissipate , so far that has not happened.
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Reviewed in the United States on October 28, 2025
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toho
Phoenix, US
★★★★★ 5
Simply The Best
Size: King (Pack of 1)
It appears there are more than 1,000 pillows advertised and available all over the Internet. The situation is a comedy routine. If you want a cooling pillow because you're a hot sleeper or if you want a plush pillow for back problems or a combination or neither, it doesn't matter. Be prepared to read 1,000 different advertisements until you start laughing out loud. This is what I did, but I wandered upon this Marlow Pillow system and then trusted the Amazon ratings. And boy am I happy, though a word of caution: if you want the cooling technology to really work you've got to pair this pillow with the Marlow pillow protector. Because Amazon didn't carry the pillow protector I bought it directly from Marlow. And this is the last pillow I'll ever get or need to get. Comfortable like a goose down pillow and yet cool to the touch and cool all night long. So I got lucky; have avoided having to buy multiple pillows; and now am enjoying the heck out of my Marlow King with the Marlow pillow protector. Lastly, this pillow is adjustable with a zipper and it works: you can make it softer or harder with a quick zip. The best pillow out there, by far!
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Reviewed in the United States on April 20, 2023
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Amazon Customer
Birmingham, US
★★★★★ 5
Really good pillow!
Size: King (Pack of 1)
This is the first pillow that I have owned in the last 10 years in which I have not experienced any neck pain. It's the right density, comfort level, and is a high-quality item. I am a side and stomach sleeper. Try this pillow and I think you'll be happy.
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Reviewed in the United States on March 4, 2025

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