PO3-HDR4 - HD/Race Rigid 4 Pad
SKU: 50799346900

PO3-HDR4 - HD/Race Rigid 4 Pad

Sale price$405.90 Regular price$451.00
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

PO3-HDR4 - HD/Race Rigid 4 PadItem Description: HD Race Rigid 4 Pad Product Weight (lbs.): 14. 1 Torque Capacity (ft lbs.): 670 Torque Capacity Over OE: 74% Disc Material: Ceramic Clutch Disc Diameter (Inches): 9. 4 Clutch Disc Diameter (Millimeters): 240 Input Shaft Diameter (inches): 1 Pressure Plate Type: Heavy Duty Warranty: 12 Months Description: The PO3 HDR4 kit features ACT's popular Heavy Duty pressure plate with an exclusive diaphragm design to increase clamp load, reduce

  • Item Description: HD/Race Rigid 4 Pad
  • Product Weight (lbs.): 14.1
  • Torque Capacity (ft/lbs.): 670
  • Torque Capacity Over OE: 74%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 9.4
  • Clutch Disc Diameter (Millimeters): 240
  • Input Shaft Diameter (inches): 1
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months

Description: The PO3-HDR4 kit features ACT's popular Heavy Duty pressure plate with an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. The pressure plate undergoes a four-stage heat-treating process for superior performance. Precision cover stampings ensure rigidity and consistency. The 4-pad rigid race discs are made with high-quality ceramic friction materials. The chrome-moly hub is heat-treated for added strength and durability. The lightweight, rigid design enables quicker shifts and 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 smaller disc sizes in smaller engines.

Description (continued):

  • Feel: Light to moderate pedal effort, aggressive engagement, increased gear rattle
  • Life: Moderate friction life extended by ACT's exclusive diaphragm design; however, the 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
  • 1999 Porsche 911 Carrera 3.4 H6 GAS FI 3400cc
  • 1999 Porsche 911 Carrera 4 3.4 H6 GAS FI 3400cc
  • 2000 Porsche 911 Carrera 3.4 H6 GAS FI 3400cc
  • 2000 Porsche 911 Carrera 4 3.4 H6 GAS FI 3400cc
  • 2001 Porsche 911 Carrera 3.4 H6 GAS FI 3400cc
  • 2001 Porsche 911 Carrera 4 3.4 H6 GAS FI 3400cc

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: 50799346900

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Brian M.
Lexington, US
★★★★★ 4
It works
Size: 2+12+12+2 pack
Fits as expected and it's nice to have so many replacement parts. This item is priced well.
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Reviewed in the United States on January 11, 2026
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Suzanne
Omaha, US
★★★★★ 5
Fits my old eufy
Size: 3+12+12+2+1 pack
This set fits my older model eufy and has extra parts for newer models. The filters did not fit our model (our fault for not doing proper research) but the fan sweeper is awesome.
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Reviewed in the United States on October 5, 2024
D
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Dan
Chelsea, US
★★★★★ 5
Lots of extras!
Size: 2+12+12+2 pack
The brushes are a bit flimsier than the original but otherwise fine. I needed it for the rectangular filters more than anything
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Reviewed in the United States on March 7, 2026
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Pan8ita
Cuba, US
★★★★★ 5
EUFY 11S
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Used to replace the ones for my EUFY 11S vacuum. They fit just like the ones and got my vacuum back to cleaning really good. Didn’t realize how loud my vacuum had become until I replaced these parts.
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Reviewed in the United States on December 19, 2025
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Armeeda
Cuba, US
★★★★★ 5
Get this!
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Very nice pack of essentials for my robot.
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