ACT RB601 Clutch Release Bearing for 2002-2021 Subaru & Mitsubishi/Turbo Vehicle

Vehicle Fitment

• 1991-1994 Subaru Legacy Sport (2.2L H4 Turbo GAS FI)
• 2002-2005 Subaru Impreza WRX (2.0L H4 Turbo GAS FI)
• 2004-2014 Subaru Impreza WRX STI (2.5L H4 Turbo GAS FI)
• 2015-2021 Subaru WRX STI (2.5L H4 Turbo GAS FI)
• 2007-2009 Subaru Legacy GT spec.B (2.5L H4 Turbo GAS FI)
• 2004-2005 Subaru Forester XT / XT Premium (2.5L H4 Turbo GAS FI)
• 2004-2005 Subaru Baja Turbo (2.5L H4 Turbo GAS FI)
• 2000-2005 Mitsubishi Eclipse (3.0L/ GTS / Spyder variants)
• 2003-2006 Mitsubishi Lancer Evolution 8/9 & MR/RS/SE (2.0L 4G63T)
• 2005 Saab 9-2X Aero (2.0L H4 Turbo GAS FI)

Features

• High-quality clutch release (throw-out) bearing that meets or exceeds OEM standards
• Sealed, self-aligning ball bearing design for smooth clutch actuation
• Steel construction for long service life and durability
• Direct-fit bearing - no modifications required for listed vehicles
• Replaces worn or failing OE release bearing during clutch service or upgrades
• Compatible with diaphragm-style clutch assemblies
• Precision machined for accurate fitment and consistent pedal feel
• Ideal when paired with ACT clutch kits or OEM clutch replacements

Specifications

• Part Type: Clutch release (throw-out) bearing
• Material: Hardened steel with sealed ball bearings
• Bearing Type: Self-aligning ball bearing
• Sealed: Yes - protects internal races from contaminants
• Inner Diameter: ~1.3 in / 33 mm
• Outer Diameter: ~2.91 in / 73.9 mm
• Weight: ~0.8 lbs
• Fitment: Vehicle-specific direct replacement

Included Components

• 1x ACT clutch release bearing (RB601)

Product Description

The ACT RB601 Clutch Release Bearing is a high-quality, direct-fit throw-out bearing designed to meet or exceed original equipment standards for multiple Subaru, Mitsubishi, and Saab turbocharged manual transmission vehicles. Built with sealed ball bearings and a self-aligning design, this bearing ensures smooth, consistent clutch actuation and long service life, making it ideal whenever a clutch assembly is serviced or replaced.

Compatible with a range of popular performance applications - including Subaru WRX/STI models from 2002 through 2021, Mitsubishi Eclipse and Lancer Evolution variants, and select Subaru Legacy, Forester XT, Baja Turbo, and Saab 9-2X Aero models - the RB601 is engineered for reliable operation under both daily driving and spirited performance conditions. A direct replacement for worn or noisy OEM bearings, it installs easily without modification and performs reliably when paired with ACT clutch kits or OEM clutch components.