SKU: 53582743425

SB5-HDR4 - HD/Race Rigid 4 Pad

Sale price$412.20 Regular price$458.00
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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14

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Description

SB5-HDR4 - HD/Race Rigid 4 PadSpecifications Item Description: HD Race Rigid 4 Pad Product Weight: 13 lbs. Torque Capacity: 535 ft lbs. (69% over OE) Disc Material: Ceramic Clutch Disc Diameter: 9 inches (228mm) Input Shaft Diameter: 1 inch Pressure Plate Type: Heavy Duty Warranty: 12 Months Description: The SB5 HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection,

Specifications

  • Item Description: HD/Race Rigid 4 Pad
  • Product Weight: 13 lbs.
  • Torque Capacity: 535 ft/lbs. (69% over OE)
  • Disc Material: Ceramic
  • Clutch Disc Diameter: 9 inches (228mm)
  • Input Shaft Diameter: 1 inch
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months

Description: The SB5-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. Precision cover stampings provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high-quality ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The 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. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.

Description: Experience a light to moderate pedal effort with aggressive engagement and increased gear rattle. The kit offers a moderate friction life, extended by ACT's exclusive diaphragm design, although the rigid design may increase spline wear. Carefully engineered, precisely assembled, and accurately balanced, using select ceramic friction materials for high heat tolerance and maximum performance. Recommended for race use only, the SB5-HDR4 kit undergoes 100% clamp load testing and dynamic computer balancing for smooth high RPM reliability.

Vehicle Fitment: Various models of Subaru Legacy GT, Subaru Outback XT, Saab 9-2X Aero, Subaru Baja Turbo, Subaru Forester XT Limited, Subaru Impreza WRX, Subaru Impreza WRX Limited, Subaru Impreza WRX TR, Subaru Legacy GT spec.B, Subaru WRX, and Subaru WRX Sport-tech from 2005 to 2018, including select JDM variants.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 53582743425

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4.4 ★★★★★
Based on 19 reviews
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Product Reviews
A
Android Zero Four
Draper, US
★★★★★ 5
Saves time and money
Size: 47pcs, Size: 47pcs
I used this kit to fix a flat tire on one of my lawn tractors from a roofing nail. I used the smallest size (blue vial) and the supplied Phillips screwdriver to screw it in after applying a dab of rubber adhesive. Then I waited about 30 minutes to inflate the tire. The only thing missing from this kit is a set of pliers to pull out any nails or screws, so provide your own if you will be carrying this in your vehicle for roadside use. There are three sizes of screws, and they are steel (I expected that they would be plastic or rubber). The steel will have increased durability. The blue vials contain the smallest screws, the pink contain the medium, and the white contain the largest screws. The screws have some sort of pre-applied rubbery stuff on the threads that I believe helps them stick to the rubber with the supplied rubber adhesive. This kit is easy to use and is a great value for the amount of flat tires you can fix on your own versus the work, time, and money it takes to go to a tire shop. The black look of the screws camouflages the repair, just make sure you screw in the plug far enough into the tire that it won't contact the road or it will eventually wear off the black finish.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
C
CinderellaRN
Birmingham, US
★★★★★ 5
Tiny Tire Saver Kit
Size: 47pcs
I really like this 47 piece tire repair kit, it feels solid in my hand and the pieces aren’t flimsy at all. The rubber nails are a good size, not too bulky, and the whole set is lightweight enough to keep in the car without adding clutter. The black color looks clean and professional, and the glue works faster than I expected. For the cost, it feels like a smart buy because you get a lot of pieces and it can handle car, truck, or even motorcycle tires. It gave me peace of mind knowing I can fix a flat quickly on my own.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
K
Kendra O'Neill
Fort Morgan, US
★★★★★ 5
Convenient repair kit
Size: 21pcs, Size: 21pcs
Great value! It includes different rubber screws, screwdriver, tubes of rubber solution, squeeze tips for the solution, little plastic scrapers to level out and scrape away any excess. Each screw is sealed in a separate little tube container. Everything is in a nice little plastic box making it super convenient! Nice quality and different sizes making it easy to use. Can't speak to durability yet but will update if not as expected.
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Reviewed in the United States on June 1, 2026
M
Michael Griffin
Carnegie, US
★★★★★ 5
Finally a kit that actually works
Size: 21pcs, Size: 21pcs
Tried the small nail on a pinhole leak, held pressure for 2 weeks now. The screwdriver feels solid. Comes with 3 glues which is generous.
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Reviewed in the United States on May 10, 2026
J
Jason
San Leandro, US
★★★★★ 5
Beats rope plugs every time
Size: 21pcs, Size: 21pcs
Used plenty of plug kits. This screw-in type is faster, cleaner, and no arm workout. Large size seals a real nail hole tight. Trunk ready.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026

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