Perrin Alternator Pulley Black (PSP-ENG-121BK) | Subaru WRX 2015-2025 / Forester XT 2014-2018 / Ascent 2019-2025 / Legacy XT 2021-2025 / Outback XT 2021-2025

The Perrin Alternator Pulley Black for FA-powered Subarus reduces rotating mass, contributing to a more responsive engine while maintaining reliable charging system performance.

KEY FEATURES

• Lightweight billet aluminum pulley
• Black anodized OEM+ finish
• Reduces inertia in the accessory drive system
• Stock-diameter design for proper alternator speed
• Direct bolt-on upgrade for modern FA turbo platforms

VEHICLE FITMENT

• Subaru WRX (2015–2025)
• Subaru Forester XT (2014–2018)
• Subaru Ascent (2019–2025)
• Subaru Legacy XT (2021–2025)
• Subaru Outback XT (2021–2025)

Perrin products are engineered for precision Subaru performance and long-term reliability.