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More holding capacity for a manual Subaru WRX
The Action Clutch Stage 2 1KS package for the 2018 to 2021 Subaru WRX combines a sprung segmented Kevlar disc, a single diaphragm pressure plate, and a lightweight flywheel for street driving with occasional track use. The exact package number is ACR-1817-FW, and the application is for the 2.0L DOHC FA20DIT turbo engine, all wheel drive, and manual transmission. Use ACR-1817-FW when checking the box label or ordering replacement parts.
Key Features
- Stage 2 1KS clutch package for street driving and occasional circuit, time attack, or road racing
- Reinforced steel backed segmented Kevlar friction material for grip and heat tolerance
- Sprung clutch disc paired with a single diaphragm pressure plate
- Factory like pedal feel after the required break in period
- Lightweight flywheel included as part of the matched package
- Rated for a 110 percent increase in holding capacity over the factory kit at crank torque
- Patented fully enclosed spring retainers help contain the springs during use
- Designed for street use and occasional circuit, time attack, or road racing
- Not recommended for drag racing or drifting
Fitment
| Years | Make | Model | Engine | Drivetrain | Transmission | Notes |
|---|---|---|---|---|---|---|
| 2018 to 2021 | Subaru | WRX | 2.0L DOHC FA20DIT turbo | All wheel drive | Manual | Lightweight flywheel included. Match package number ACR-1817-FW and the vehicle configuration before ordering. |
Specifications
| Detail | Value |
|---|---|
| Product type | Stage 2 1KS clutch kit with lightweight flywheel |
| Friction material | Reinforced steel backed segmented Kevlar |
| Clutch disc | Sprung segmented disc |
| Pressure plate | Single diaphragm pressure plate |
| Spring retainers | Patented fully enclosed design |
| Holding capacity | 110 percent increase over the factory kit, rated at crank torque |
| Intended use | Street driving and occasional circuit, time attack, or road racing |
| Use restriction | Not recommended for drag racing or drifting |
| Break in | 1,000 street miles under 4,500 RPM with no more than half throttle and no boost when applicable |
| Flywheel | Lightweight flywheel included |
| Manufacturer part number | ACR-1817-FW |
| Brand | Action Clutch |
| Condition | New |
What's Included
- Sprung segmented Kevlar clutch disc
- Single diaphragm pressure plate
- Lightweight flywheel
- Pilot bearing or bushing when applicable
- Clutch alignment tool
- Conventional release bearing
About Action Clutch
Action Clutch develops staged clutch and flywheel packages for street and track vehicles. This package combines Kevlar friction material with a pressure plate intended to increase holding capacity while maintaining smooth street engagement. Proper installation and break in support clutch performance and warranty coverage.
FAQ
What is the ACR-1817-FW?It is a Stage 2 1KS clutch kit with a sprung segmented Kevlar disc, pressure plate, and lightweight flywheel for the listed Subaru WRX application.
Which vehicles fit this clutch kit?It fits 2018 to 2021 Subaru WRX models with the 2.0L DOHC FA20DIT turbo engine, all wheel drive, and a manual transmission.
Will it fit an automatic transmission?No. This application is for a manual transmission and is not a replacement for an automatic transmission clutch system.
What friction material does the disc use?The disc uses reinforced steel backed segmented Kevlar friction material with a sprung hub design.
Is the flywheel included?Yes. A lightweight flywheel is included as part of the matched clutch package.
What parts are included in the package?The package includes the sprung disc, pressure plate, lightweight flywheel, pilot bearing or bushing when applicable, alignment tool, and conventional release bearing.
What driving is this clutch designed for?It is intended for street driving and occasional circuit, time attack, or road racing. It is not recommended for drag racing or drifting.
How long is the break in period?Drive for 1,000 street miles under 4,500 RPM with no more than half throttle. Avoid boost when applicable during break in.
What pedal feel should I expect?The single diaphragm pressure plate is intended to provide factory like pedal feel after proper break in. Engagement may feel different during the early miles.
What warranty coverage applies?Action Clutch offers a limited one year warranty from the original purchase date to the original purchaser for defects in material or workmanship when bought from an authorized retailer, reseller, or the Action Clutch website. Coverage is for parts only. Normal wear, improper installation, improper maintenance, misuse, abuse, negligence, accident, alteration, a damaged input shaft, and failure to resurface the flywheel are excluded. Labor is not covered.
Installation Instructions
- Confirm the vehicle year, model, engine, drivetrain, and manual transmission match this application. Compare the supplied components with package number ACR-1817-FW before removing the original assembly.
- Disconnect the battery, raise the vehicle securely, and remove the transmission and related components according to the Subaru service manual.
- Remove the original clutch and flywheel. Inspect the crank flange, rear main seal, pilot bearing area, release system, and transmission input shaft before assembly.
- Prepare the crank and flywheel mounting surfaces. Resurface the flywheel as required by the warranty and follow the vehicle service manual requirements for fastener replacement and cleanliness.
- Install the lightweight flywheel and tighten its fasteners in the service manual sequence and to the service manual specification.
- Center the sprung clutch disc with the supplied alignment tool, install the pressure plate, and tighten it evenly in the service manual sequence.
- Install the release components and transmission. Check alignment and clearance without forcing the transmission into position.
- Reconnect the clutch hydraulics and bleed the system if it was opened. Confirm pedal operation and engagement before lowering the vehicle.
- Complete the break in period with 1,000 street miles under 4,500 RPM and no more than half throttle. Avoid drag launches, drifting, and boost when applicable during this period.
Prop 65 Warning
WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
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