{"product_id":"whipple-12-rib-marine-supercharger-pulley-for-4-5l-w275ax","title":"Whipple 12-Rib Marine Supercharger Pulley for 4.5L \/ W275AX","description":"\u003cp\u003eThis Whipple 12-rib marine supercharger pulley is designed for compatible 4.5L \/ W275AX Whipple marine supercharger applications. Each pulley is machined from 6061-T6 billet aluminum and anodized for wear resistance and environmental protection in demanding performance and marine-use conditions.\u003c\/p\u003e\n\u003cp\u003eThe pulley design includes lightweight pocketing to help reduce rotating mass, a guarded outer profile to help reduce unwanted belt wandering during hard running, and engraved running diameter identification for easier service and setup verification. Pulley dimensions are based on the running diameter.\u003c\/p\u003e\n\u003cp\u003eThis product is available with finish and diameter options. Finish options include black, blue, and clear anodized. Available running diameters include 3.25\", 3.50\", 3.75\", 4.00\", 4.25\", 4.50\", 4.75\", and 5.00\".\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral pulley sizing note:\u003c\/strong\u003e As a general rule of thumb, every 0.125\" pulley change is approximately 0.75 PSI of boost change, increasing or decreasing depending on pulley direction and the full drive combination. Actual boost change can vary based on engine setup, supercharger configuration, belt system, operating conditions, calibration, and supporting hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication note:\u003c\/strong\u003e Whipple supercharger pulleys are application-specific. Verify pulley diameter, rib count, belt system, supercharger model, and application before ordering. Do not order this pulley for a different application unless compatibility has been confirmed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReturns note:\u003c\/strong\u003e There are no returns or exchanges for used pulleys.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eKey Features\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12-rib marine supercharger pulley\u003c\/li\u003e\n  \u003cli\u003eDesigned for compatible 4.5L \/ W275AX Whipple supercharger applications\u003c\/li\u003e\n  \u003cli\u003eBillet 6061-T6 aluminum construction\u003c\/li\u003e\n  \u003cli\u003eBlack, blue, and clear anodized finish options\u003c\/li\u003e\n  \u003cli\u003eAvailable in 3.25\", 3.50\", 3.75\", 4.00\", 4.25\", 4.50\", 4.75\", and 5.00\" running diameters\u003c\/li\u003e\n  \u003cli\u003eEngraved running diameter identification\u003c\/li\u003e\n  \u003cli\u003eLightweight pocketed design helps reduce rotating mass\u003c\/li\u003e\n  \u003cli\u003eGuarded profile helps reduce belt wandering during hard running\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Whipple Superchargers","offers":[{"title":"Default Title","offer_id":56180570980674,"sku":"SCP-RG12-275AX","price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/6002\/9506\/files\/F198648139.jpg?v=1789511628","url":"https:\/\/whipplesuperchargers.com\/products\/whipple-12-rib-marine-supercharger-pulley-for-4-5l-w275ax","provider":"whipplesuperchargers","version":"1.0","type":"link"}