HW4-HDR4 - HD/Race Rigid 4 Pad
SKU: 15034912910

HW4-HDR4 - HD/Race Rigid 4 Pad

Sale price$202.50 Regular price$225.00
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Description

HW4-HDR4 - HD/Race Rigid 4 PadSpecifications: Item Description: HD Race Rigid 4 Pad Product Weight: 9. 7 lbs. Torque Capacity: 300 ft lbs. Torque Capacity Over OE: 96% Disc Material: Ceramic Clutch Disc Diameter (Inches): 8. 3 inches Clutch Disc Diameter (Millimeters): 212 mm Input Shaft Diameter (inches): 0. 875 inches Pressure Plate Type: Heavy Duty Warranty: 12 Months Description: The HW4 HDR4 kit features ACT's most popular Heavy Duty pressure plate designed for racing

Specifications:

  • Item Description: HD/Race Rigid 4 Pad
  • Product Weight: 9.7 lbs.
  • Torque Capacity: 300 ft/lbs.
  • Torque Capacity Over OE: 96%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 8.3 inches
  • Clutch Disc Diameter (Millimeters): 212 mm
  • Input Shaft Diameter (inches): 0.875 inches
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months

Description:

The HW4-HDR4 kit features ACT's most popular Heavy Duty pressure plate designed for racing applications. 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 on ACT pressure plates ensure rigidity and consistency. The 4-pad rigid race discs included in this kit are made with high-quality ceramic friction materials, with a chrome-moly hub heat-treated for strength and durability. The lightweight, rigid design of the discs 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.

Description:

  • 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:

  • Application: Engine
    • 1989 Honda Civic RT 4WD (1.6 L4 GAS FI 1588cc | SOHC | Naturally Aspirated)
    • 1990 Honda Civic RT 4WD (1.6 L4 GAS FI 1588cc | SOHC | Naturally Aspirated)
    • 1991 Honda Civic RT 4WD (1.6 L4 GAS FI 1588cc | SOHC | Naturally Aspirated)

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: 15034912910

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4.6 ★★★★★
Based on 963 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
Great for cats, get rid of lip lifter!
Color: Microbrush Kit
The best toothbrush for cats! It fits and is easy to maneuver, and because it’s small, my cat doesn’t mind the shape. The only thing is that the lip lifter hits teeth and gets caught in cheeks, so I sanded that off, which has made teeth brushing much easier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
A
Verified Purchase
Amazon Customer
Cuba, US
★★★★★ 4
Soft brush, good quality!
Color: Microbrush Kit
I like that the bristles on the brush are very soft and it's curved well for my kitty's mouth. The only thing that I don't care for is the handle is pretty long and doesn't need to be.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2025
S
Verified Purchase
S. P.
Massapequa, US
★★★★★ 5
Best best pet toothbrush I have tried
Color: Microbrush Kit
This is by far the best toothbrush I have found for my cat. It was clearly designed by someone who deeply understands feline dental health. The way the bristles decrease toward the tip and the specialized part for lifting the corner of the mouth are incredibly thoughtful and effective features. While the bristles are soft, they are strong enough to provide the necessary pressure against the teeth. My cat has a relatively small head and mouth, yet she resisted this brush the least of all. I will not be going back to my previous toothbrushes. Very highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
C
Verified Purchase
Crissi
Lake Worth, US
★★★★★ 5
Cat approves, easy to use, comfortable to grip, sturdy.
Color: Microbrush Kit, Color: Microbrush Kit
My cat seems to love it so that's a automatic win! I was a little unsure about using a long handled toothbrush, I thought it would be more difficult to use but turns out its actually easier than the little finger brushes. The heads on the toothbrushes can be swapped, making it so that you dont have to buy a whole new one. It's been a few months since I bought it and its holding up well, no major wear on it aside from some gnaw marks from my Chonk chewing on it. Fits nicely in my hand and the brush head isn't too big for my cats tiny faces & teeth. I'd recommend it so far and I'm going to keep on with this brush instead of trying a new product every time.
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Reviewed in the United States on June 4, 2025
M
Verified Purchase
Melissa Cordero
Battle Creek, US
★★★★★ 3
its packaged nice and it is a smaller product to fit in kitty mouths but still not great.
Color: Microbrush Kit
it's a nice product but still doesn't make my cats any easier to brush. Nor does it seem enjoyable. I enjoy brushing my teeth and I want them too also. I believe cats life would be so much longer if we brushed their teeth. Think about how early our ancestors died before proper dental care.
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Reviewed in the United States on April 6, 2025

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