Vehicle Fitment

• 2003–2012 Honda Accord — 2.4L DOHC (K24A4); Manual Transmission (5-speed and 6-speed); All Trims with manual gearbox (LX, EX, EX-L, SE, Sport)

Fitment Notes

• Fits all 2003–2012 Honda Accord trims equipped with the K24A4 2.4L DOHC engine and a manual transmission — does NOT fit Accord models with automatic transmissions, V6 engines, or the 2.2L iCTDi (European diesel) variant
• This kit replaces the stock 225mm clutch disc with a 215mm disc — the smaller-diameter ceramic disc is designed for increased load capacity and extended service life in race applications; this dimensional change is normal and expected for this kit and does not indicate incorrect fitment
• K24 Accord vehicles may require an ECU flash after installation — some K24A4 Accord ECUs detect clutch size changes and may trigger error codes or exhibit drivability issues; an HonData FlashPro or KTuner Flash unit is recommended to recalibrate the ECU to the new clutch specifications if this occurs
• This is an unsprung (rigid) ceramic clutch kit — it is NOT designed for daily driving or street use. Using this kit in daily traffic or constant on/off engagement will break the rivets on the rigid clutch disc hub, causing premature failure; this kit is for dedicated race vehicles or exclusively track-driven applications
• A lightened flywheel is included with this kit — no separate flywheel purchase is required; the included flywheel must be installed as part of the complete clutch system; the flywheel should be resurfaced if reused after clutch wear to maintain warranty coverage
• Contact Action Clutch before ordering if uncertain about stage selection — purchasing a kit that is mismatched to your engine's power output can cause premature clutch failure, transmission damage, and voided warranty eligibility
• This item is a replacement/service part and is non-returnable and non-refundable unless the product arrives defective.

Features

• Stage 4 (1MD) unsprung MIBA ceramic 6-puck disc — the 1MD designation is Action Clutch's single-disc rigid ceramic configuration; the unsprung hub provides instantaneous engagement with no damping between the disc and the transmission input shaft, delivering the fastest possible power transfer for drag launches, drift clutch-dumps, and aggressive track shifting maneuvers where engagement speed and grip under heat are the primary requirements
• 170% increase in torque holding capacity over factory — the Stage 4 configuration delivers more than double the factory K24A4 clutch's torque capacity (rated in crank torque), accommodating forced induction, high-compression, cam, and other engine modifications that push far beyond what stock or Stage 1–2 kits can handle reliably at the clutch surface
• Includes lightened flywheel — unlike standalone ACR-series clutch kits that require a separate flywheel purchase, the ACR-0597 ships as a complete system with an Action Clutch lightened flywheel matched to the K24A4 Accord; the lightened flywheel reduces rotational inertia in the drivetrain, improving engine response and rev speed compared to the factory unit
• Single diaphragm heavy-duty pressure plate with reinforced drive straps — the upgraded pressure plate applies the clamping load required to fully engage the ceramic disc's grip potential; reinforced drive straps improve durability under repeated high-load engagement cycles in race environments
• MIBA ceramic friction material — ceramic pucks maintain consistent grip and thermal performance at sustained high clutch surface temperatures that cause organic and Kevlar-based materials to fade, making this kit appropriate for repeated hard launches, high-RPM shifts, and sustained track sessions
• Available in 4-puck and 6-puck configurations — the 4-puck disc is the more aggressive variant with fewer contact points and even faster engagement; the 6-puck provides slightly more progressive engagement while retaining the full ceramic performance advantage; verify puck count when ordering
• SFI Spec 1.1 certified — meets SFI Foundation specification 1.1 for replacement flywheels and clutch assemblies
• Individually quality checked — every kit is assembled and inspected by Action Clutch's engineering team (50+ years of combined experience) before release
• Clutch chatter and increased gear rattle are normal — inherent to all rigid ceramic disc designs; these are not defects and will be reduced but not fully eliminated after proper break-in

Specifications

• Part Number: ACR-0597
• Stage: 4 (1MD — Single Disc, MIBA Ceramic, Unsprung/Rigid)
• Disc Type: Unsprung MIBA Ceramic 6-Puck (rigid hub — no damping)
• Disc Diameter: 215mm (replaces stock 225mm)
• Pressure Plate Type: Single Diaphragm Heavy-Duty with Reinforced Drive Straps
• Torque Holding Capacity: 170% increase over factory (crank torque)
• Flywheel Included: Yes — Action Clutch Lightened Flywheel
• Intended Use: Drag / Road / Drift Racing ONLY
• NOT Recommended For: Daily driving, street use, or constant on/off engagement
• ECU Flash Recommended: Yes — HonData FlashPro or KTuner Flash for K24 Accord applications
• SFI Certification: SFI Spec 1.1
• Break-In Required: Yes — 500 street miles minimum; RPMs under 4,500; no more than half-throttle; no boost during break-in
• Price: $818.95

Included Components

• 1x Unsprung MIBA Ceramic 6-Puck Clutch Disc (rigid hub)
• 1x Single Diaphragm Heavy-Duty Pressure Plate
• 1x Action Clutch Lightened Flywheel (matched to K24A4 Accord)
• 1x Conventional Release Bearing
• 1x Pilot Bearing / Bushing (when applicable)
• 1x Clutch Alignment Tool

Product Description

The Action Clutch ACR-0597 is a Stage 4 (1MD) rigid ceramic clutch kit with included lightened flywheel for the 2003–2012 Honda Accord equipped with the K24A4 2.4L DOHC engine and manual transmission. It represents the highest single-disc stage in Action Clutch's Accord K24 lineup, built around a rigid MIBA ceramic 6-puck disc for maximum torque capacity and instantaneous engagement in dedicated race applications.

The key advantage of this kit over other ACR-05XX Accord kits is that it ships as a complete system — the lightened flywheel is included, eliminating the need for a separate flywheel purchase and ensuring the clutch and flywheel are properly matched to the K24A4 application out of the box. The lightened flywheel also provides the additional performance benefit of reduced rotational inertia, improving throttle response and rev speed compared to the factory unit. Note that the kit uses a 215mm disc replacing the stock 225mm, and some K24A4 Accord ECUs may require an HonData FlashPro or KTuner Flash to recalibrate after installation.

This kit is for dedicated race vehicles only. The unsprung rigid disc hub provides no dampening, making it entirely unsuitable for daily driving or regular street use — the rivets on the rigid hub will break under the constant on/off engagement of traffic driving. Clutch chatter and increased gear rattle are normal characteristics of all rigid ceramic clutch designs, not defects. A 500-mile street break-in is required; failure to complete break-in voids the warranty. This item is non-returnable and non-refundable unless the product arrives defective. SFI Spec 1.1 certified. Backed by Action Clutch's 1-year limited manufacturer defect warranty.