Action Clutch AC132FW-RT Retrofit Chromoly Flywheel 2017-2021 Civic Si

Vehicle Fitment

• 2017-2021 Honda Civic Si (L15B7, 1.5L DOHC Turbocharged, manual transmission)
• 2018-2020 Honda Accord 1.5T (L15B7, 1.5L DOHC Turbocharged, manual transmission)

Fitment Notes

• This is a Retrofit flywheel - must be paired with a FK8 Honda Civic Type R clutch kit (2016-2021); it does not work with the OEM 1.5T clutch disc and pressure plate
• OEM 1.5L Turbo pressure plate bolts and flywheel bolts must be used during installation - do not substitute aftermarket fasteners
• Professional installation strongly recommended - flywheel replacement requires transmission removal, clutch disassembly, and specialized tools
• Always replace clutch components when installing a new flywheel
• Reduced rotational mass may introduce increased NVH (noise, vibration, harshness) - this is normal for lightweight flywheel applications
• Flywheel surface must be inspected for proper finish before clutch installation; resurfacing is required when replacing a worn clutch

Features

• Chromoly steel construction delivers superior strength-to-weight ratio compared to cast iron for durability without excess rotational mass
• Advanced heat treatment process increases hardness and wear resistance for extreme street and track use
• Tested to 18,000 RPM for proven high-RPM reliability under sustained performance driving
• High thermal capacity handles the heat generated during aggressive clutch engagement without warping or glazing
• CNC machined friction surface ensures proper clutch engagement and consistent bite throughout the life of the flywheel
• Resurfaceable - the friction surface can be machined when worn, extending flywheel lifespan well beyond a single clutch replacement
• Heat-fitted ring gear for reliable, consistent starter engagement
• Reduced rotational mass improves engine response, throttle snap, and rev-matching speed compared to the heavier OEM cast iron flywheel
• Designed and engineered for light to highly tuned street and race applications

Specifications

• Material: Chromoly steel
• Construction: Heat treated, CNC machined
• RPM Rating: Tested to 18,000 RPM
• Type: Retrofit (uses FK8 Type R clutch components)
• Resurfaceable: Yes
• Application: Street and race
• Required Clutch: FK8 Civic Type R clutch kit (2016-2021)
• Required Hardware: OEM 1.5L Turbo pressure plate bolts and flywheel bolts

Included Components

• 1x Action Clutch AC132FW-RT chromoly retrofit flywheel
• Note: FK8 Type R clutch kit, pressure plate bolts, and flywheel bolts are NOT included and must be sourced separately

Product Description

The Action Clutch AC132FW-RT is a chromoly steel retrofit flywheel engineered specifically for 2017-2021 Honda Civic Si and 2018-2020 Honda Accord 1.5T models with the L15B7 turbocharged engine. The "RT" designation indicates its retrofit design - this flywheel is purpose-built to interface with the FK8 Civic Type R clutch kit (2016-2021), unlocking the ability to run a high-performance clutch in the 1.5T drivetrain that would otherwise be limited to OEM components. The result is improved clutch capacity, sharper engagement, and dramatically faster throttle response courtesy of the reduced rotational mass.

Action Clutch subjects this flywheel to an advanced heat treatment process that increases hardness and wear resistance throughout the material, then CNC machines the friction surface to tight tolerances for consistent clutch bite. The flywheel has been tested to 18,000 RPM and is fully resurfaceable, allowing it to outlast multiple clutch replacements. Note that some increase in NVH (noise, vibration, harshness) is normal with any lightweight flywheel and should be expected compared to the factory cast iron unit.