{"product_id":"alternator-pulley-41","title":"Alternator Pulley","description":"The PERRIN Alternator Pulley is a performance upgrade for the 2022-2023 Subaru WRX, engineered to reduce rotational mass and improve engine response. This reduction in weight can contribute to increased horsepower, torque, and a more immediate throttle response.\n\nBeyond performance gains, this PERRIN pulley offers a proactive solution to a known OEM component weakness. Subaru models equipped with clutch-style alternator pulleys are susceptible to failure over time, which can manifest as knocking sounds, unreliable battery charging, accelerated belt wear, and belt instability. By replacing the stock unit with the PERRIN Alternator Pulley, you eliminate this potential failure point and enhance the reliability of your charging system.\n\nAvailable in three attractive colors—black, red, and blue—it offers a personalized touch. Installation includes the pulley and an M17 nut.","brand":"PERRIN Performance","offers":[{"title":"Default Title","offer_id":52664208064824,"sku":"PSP-ENG-121","price":51.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687136146.webp?v=1784335182","url":"https:\/\/store.motormia.co\/products\/alternator-pulley-41","provider":"MOTORMIA","version":"1.0","type":"link"}