Fluidampr 571111 Harmonic Balancer for 2018-25 Subaru/Toyota 2.4L FA24 & 2.0/2.5

Vehicle Fitment

• 2018-2025 Subaru / Toyota 2.4L FA24 (FA24F / FA24D)
• 2017-2025 Subaru 2.0L FB20 / 2.5L FB25 series engines
• Compatible models include (but not limited to): Subaru BRZ, Toyota GR86, Subaru WRX (2022+ FA24F), Impreza (FB20/FB25), Outback (FB25/FA24A Turbo), Forester (FB25), Legacy (FB25 / FA24A Turbo), Crosstrek (FB20/FB25), Ascent (FA24/FB25) and other FB/FA-series Subaru/Toyota vehicles in the stated years

Features

• Viscous fluid damper design - absorbs and dampens crankshaft torsional vibrations across full RPM range
• Steel housing with corrosion-resistant black zinc finish for durability
• Internal balance - no external counterweight mass, ideal for modern flat-four engines
• Engraved timing mark for accurate ignition and timing reference
• Precision CNC-machined and computer-balanced for smooth operation and minimal vibration
• SFI 18.1 certified - suitable for performance, street, and racing applications
• Replaceable crankshaft hub adapter kit included - ensures proper fitment for FA24 / FB20 / FB25 crank snout
• Maintains accessory belt drive pulley configuration (serpentine belt ready)

Specifications

• Material: Steel housing, internally balanced design
• Inside Bore Diameter: 0.787"
• Outside Diameter: 5-7/8"
• Overall Depth / Length: 1.620"
• Rotating Weight / Total Weight: 3.8 lbs / 5.8 lbs
• Finish: Black zinc protective coating
• Engine Balance: Internal
• Drive Belt Type: Serpentine / accessory belt compatible
• Included Adapter Kit: Crankshaft hub adapter, O-ring, OE-style crank bolt (for proper FA24 / FB20 / FB25 fitment)
• Safety Rating / Compliance: SFI 18.1 certified

Included Components

• 1x Fluidampr 571111 Harmonic Balancer (steel, black zinc finish)
• 1x Crankshaft hub adapter kit (adapter, O-ring, crank bolt) for FA24 / FB20 / FB25 engines

Product Description

The Fluidampr 571111 Harmonic Balancer is engineered specifically for modern Subaru and Toyota flat-four engines - including 2.4L FA24 and 2.0/2.5L FB-series engines - to provide superior crankshaft vibration control. By using a sealed viscous damper design, the 571111 reduces destructive torsional harmonics through the entire RPM range, giving smoother operation, improved valvetrain stability, and reducing stress on timing components, bearings, and crankshafts.

Constructed from precision-machined steel with an internal balance and corrosion-resistant black zinc finish, this damper is CNC-balanced and ready for performance, street, or racing use. It includes the necessary adapter kit for correct installation on FA24 / FB20 / FB25 crank snouts, restoring or upgrading the OEM pulley configuration and keeping serpentine belt compatibility intact. For anyone upgrading power, doing performance work, or seeking longevity and reliability from their flat-four Subaru/Toyota engine - the 571111 is a high-quality, maintenance-free upgrade that helps preserve engine integrity under load or boost.