Stage 3 Clutch Kit (1MS) for Subaru WRX STI 2004-2021 2.5L DOHC (EJ257) Turbo AWD Includes ACT Monoloc
SKU: 77905713300

Stage 3 Clutch Kit (1MS) for Subaru WRX STI 2004-2021 2.5L DOHC (EJ257) Turbo AWD Includes ACT Monoloc

Sale price$298.78 Regular price$331.98
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Stage 3 Clutch Kit (1MS) for Subaru WRX STI 2004-2021 2.5L DOHC (EJ257) Turbo AWD Includes ACT MonolocAction Clutch's Stage 3 (1MS) Clutch Kit is designed to withstand even the most challenging conditions. Featuring a heavy duty single diaphragm pressure plate, reinforced drive straps, and a Sprung MIBA Ceramic (available in a 4 or 6 puck) disc, this kit provides peak performance and extreme durability for low mild horsepower vehicles. Our Sprung MIBA Ceramic clutch kit provides quicker engagement and will introduce some clutch chatter, which will

Action Clutch's Stage 3 (1MS) Clutch Kit is designed to withstand even the most challenging conditions. Featuring a heavy-duty single diaphragm pressure plate, reinforced drive straps, and a Sprung MIBA Ceramic (available in a 4 or 6 puck) disc, this kit provides peak performance and extreme durability for low/mild horsepower vehicles. Our Sprung MIBA Ceramic clutch kit provides quicker engagement and will introduce some clutch chatter, which will minimize after proper break-in. For those looking to take their vehicles to the next level, the Stage 3 (1MS) Action Clutch Kit provides maximum control and power with little compromise on reliability.

At Action Clutch, safety is our top priority. We understand how catastrophic engine or transmission damage can be caused by springs popping out which is why we use our patented, fully enclosed spring retainers to keep your investment protected at all times. Every kit is quality checked by one of our experienced engineers (with over 60 years of collective experience) and signed off as safe before being released as a finished product. This gives you peace of mind knowing that your Action Clutch will perform consistently every time.

170% INCREASED HOLDING CAPACITY OVER FACTORY KIT*
HEAVY-DUTY STREET USE AND OCCASIONAL DRAG / ROAD / DRIFT RACING

Specifications

Product Type Stage 3 Clutch Kit (1MS)
Product Weight (lbs)
SFI 1.1
 
What’s Included
  • Sprung MIBA Ceramic 6 Puck Disc
  • Single Diaphragm HD Pressure Plate
  • Pilot Bearing / Bushing (when applicable)
  • Clutch Alignment Tool
  • Conventional Release Bearing

Break-in Requirements
500 street miles / Keep RPM’s under 4500, no more than half-throttle, no boost (if applicable).
Proper break-in is required in order to retain product warranty, ensure longevity and holding capacity.

Disclaimers
Ceramic based clutch discs intend to increase the holding capacity and durability of the clutch as opposed to an increased life expectancy. Using a ceramic based material for easy street driving may contribute to premature wear of the clutch kit due to the harsher engagement and because of the higher tendency to slip the clutch during street driving.

*Increase in holding capacity is rated in Crank Torque, not Wheel Torque




SFI Spec 1.1 Replacement Flywheels and Clutch Assemblies

California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. 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: 77905713300

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Jessica
Battle Creek, US
★★★★★ 3
Not a Good Choice for Chewers
Color: Get Ripped Margrrrita, Size: L
I loved the idea of this toy, but it did not work or last as intended. It is pretty heavy and made of thick rubber. The flaps over the cup where the treats are dispensed did not last 5 minutes with my pup, so we can no longer use it to dispense treats/use as a brain game.
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Reviewed in the United States on May 2, 2026
A
Verified Purchase
Amber
Lake Worth, US
★★★★★ 5
Super fun, my dog loves it!
Color: Hambone Super Chewer, Size: M/L
I adopted a Feist/Pit mix and this was the first toy I got him for just him. He went nuts for it! He’s a destructive pup so ripping the soft “skin” off of hambone really helped him release some pent up energy! Now he carries it around in the yard and just chews on it. If you have tiny treats, drop em in the nose holes and watch your pup go crazy trying to get them out!
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Reviewed in the United States on May 18, 2026
D
Verified Purchase
danielle hendrickson
Louisville, US
★★★★★ 2
Not for super chewers
Color: Hambone Super Chewer, Size: M/L
Had to take it away from my dog the same evening I gave it to him because a chunk came off. I did not want him to choke on the pieces.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
D
Verified Purchase
Durenda
New York, US
★★★★★ 5
A favorite for my boys!
Color: Hambone Super Chewer, Size: M/L
My dogs love this toy, it satisfied their need to rip up a toy and still allowed them to play long after the top layer was torn apart to enjoy! It bounces well and has still held up with my chewers, this is still one of my dogs favorite toys to play fetch with!
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Reviewed in the United States on May 20, 2026
J
Verified Purchase
Jackie H
Battle Creek, US
★★★★★ 5
Great toy
Color: Hambone Super Chewer, Size: M/L
My dog loves this toy so much. He's not quite so aggressive with his chewing, now that he's getting older, but this toy lasted through his younger years, and recently started to show signs of wear. He was so sad when I threw it out, that I had to replace it. Glad it still exists - we got the first one probably 5 years ago.
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Reviewed in the United States on January 4, 2026

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