ACT XACT Prolite Flywheel ACT600390 for Toyota and Scion Applications

600390 is a Prolite flywheel, which is ACT's lighter flywheel offering with lowest inertia. Prolite flywheels are designed for best throttle response and acceleration. Prolite flywheels are preferred for road racing or rally racing, and have reduced drivability. Materials are properly distributed for maximum strength, good heat tolerance and rigidity. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts. XACT Flywheel Prolite Dramatically improved engine response and acceleration, mild to moderate gear rattle; Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life; One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears; Recommended for race use; Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability

• "Excellence in Performance", backed by the best one-year warranty in the industry!

The ACT XACT Prolite Flywheel is a lightweight, low-inertia flywheel designed to improve engine response, throttle reaction, and acceleration. Part number ACT600390 is engineered for drivers seeking sharper performance, particularly in road racing and rally applications. Its reduced rotational mass helps the engine gain and shed RPM more quickly, although it may produce mild to moderate gear rattle and reduced street drivability.

Built for dependable high-RPM operation, the ACT Prolite flywheel uses a heat-treated forged construction for strength, toughness, heat tolerance, and rigidity. The one-piece design promotes consistent heat transfer from the clutch disc while eliminating common failure points associated with loose ring gears and warped inserts. An induction-hardened ring gear is designed for extended service life, and the flywheel is CNC machined and dynamically computer balanced for smooth performance. Unlike many replacement flywheels, ACT units are serviceable and can be resurfaced without requiring additional replacement parts.

ACT recommends the XACT Prolite Flywheel primarily for race use. It is compatible with select Toyota and Scion vehicles, including the 1991–2000 Toyota RAV4, 1991–1995 Toyota MR2, and 2008–2011 Scion xB. Confirm vehicle, engine, transmission, and clutch compatibility before installation. The product is backed by ACT's one-year warranty. This product carries a California Proposition 65 warning.

What's Included

• ACT XACT Prolite flywheel
• Integrated induction-hardened ring gear
• Manufacturer warranty support

Features:

• Low-Inertia Design: Reduces rotating mass for faster throttle response and improved acceleration.
• Race-Oriented Performance: Recommended for road racing, rally racing, and other competition-focused applications.
• Forged One-Piece Construction: Heat-treated, CNC-machined construction provides strength, rigidity, and consistent heat transfer.
• Balanced and Serviceable: Dynamically computer balanced for smooth high-RPM operation and designed for resurfacing when required.

Fitments:
1988 Toyota Celica All Trac
1989 Toyota Celica All Trac
1990 Lexus ES250 Base
1990 Toyota Celica All Trac
1991 Lexus ES250 Base
1991 Toyota Celica All Trac
1991 Toyota MR2 Turbo
1992 Lexus ES300 Base
1992 Toyota Celica All Trac
1992 Toyota MR2 Turbo
1993 Lexus ES300 Base
1993 Toyota Celica GTS All Trac
1993 Toyota MR2 Turbo
1994 Toyota MR2 Turbo
1995 Toyota MR2 Turbo
1996 Toyota RAV4 Base
1997 Toyota RAV4 Base
1998 Toyota RAV4 Base
1999 Toyota RAV4 Base
2000 Toyota RAV4 Base
2005 Scion tC Base
2006 Scion tC Base
2007 Scion tC Base
2007 Scion tC Spec
2008 Scion tC Base
2008 Scion tC Spec
2008 Scion xB Base
2009 Scion tC Base
2009 Scion xB Base
2010 Scion tC Base
2010 Scion xB Base
2010 Toyota Camry Base
2010 Toyota Camry LE
2010 Toyota Camry SE
2011 Scion tC Base
2011 Scion xB Base
2011 Toyota Camry Base
2011 Toyota Camry LE
2011 Toyota Camry SE
2012 Scion tC Base
2012 Scion xB Base
2013 Scion tC Base
2013 Scion xB Base
2014 Scion tC Base
2014 Scion xB Base
2015 Scion tC Base
2015 Scion xB Base
2016 Scion tC Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1