{"title":"Pulleys - Crank, Underdrive","description":null,"products":[{"product_id":"bbk-86-93-mustang-5-0-underdrive-pulley-kit-lightweight-cnc-billet-aluminum-3pc","title":"BBK 86-93 Mustang 5.0 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc)","description":"Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.\u003cbr\u003e\u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/73a31786eb7711db0a461b0d88cb9381.PDF\"\u003eInstallation Instructions\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/487d28df27c7ee283d19fe55af968adb.PDF\"\u003eWarranty\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/79e314188a64073af3274975eb085060.PDF\"\u003eInstallation Instructions\u003c\/a\u003e\u003cbr\u003e","brand":"BBK","offers":[{"title":"Default Title","offer_id":46885201543417,"sku":"BBK1553","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/5428\/0953\/files\/34dcb638f8f8153463537626dfa7a091L.jpg?v=1758744539"},{"product_id":"fleece-performance-03-18-dodge-2500-3500-cummins-upper-fan-pulley-idler-black-contrast","title":"Fleece Performance 03-18 Dodge 2500\/3500 Cummins Upper Fan Pulley Idler (Black Contrast)","description":"\u003cp\u003eFleece Performance billet aluminum upper fan idler pulley in our custom spoke design and black anodized finish complete with bearing.  Fits 2003-2018 Cummins equipped RAM trucks.\u003c\/p\u003e\n\u003ch3\u003eApplication Notes\u003c\/h3\u003e\n\u003cp\u003eThis pulley must be used with a factory bolt and spacer. Some aftermarket pulleys will switch to a different length bolt and spacer. If you are replacing a non-genuine pulley you can verify that you have the proper spacer and bolt with the following measurements; the factory spacer measures 1.8\" in total height and the factory mounting bolt measures 2.75\" in length. \u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":46886009012473,"sku":"FPEFPE-34657-BLK-SPK","price":113.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/5428\/0953\/files\/ee2f43c70d49ed29f4a6008c5f28ef15.jpg?v=1767828665"},{"product_id":"fleece-performance-13-18-dodge-2500-3500-cummins-fan-drive-pulley-black-finish","title":"Fleece Performance 13-18 Dodge 2500\/3500 Cummins Fan Drive Pulley (Black Finish)","description":"\u003cp\u003e\u003cspan\u003eFleece Performance billet aluminum fan drive pulley in black anodized finish for the 2013-2018 Cummins equipped RAM.  Our pulley is a direct replacement for OE part number 5295226 and has an outside diameter of 6.965\".\u003c\/span\u003e\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":46886009078009,"sku":"FPEFPE-34659-BLK","price":91.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/5428\/0953\/files\/f371ea4f00fba258264f96fad6b1b42a.jpg?v=1758754640"},{"product_id":"fleece-performance-03-12-dodge-2500-3500-cummins-fan-drive-pulley-black-finish","title":"Fleece Performance 03-12 Dodge 2500\/3500 Cummins Fan Drive Pulley (Black Finish)","description":"\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cp\u003eFleece Performance billet aluminum fan drive pulley in black anodized finish for the 2003-2012 Cummins equipped RAM.  Our pulley is a direct replacement for OE part number 4930580 and has an outside diameter of 6.965\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warranty\"\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.fleeceperformance.com\/media\/wysiwyg\/FleecePerformanceEngineering_Warranty.pdf\" target=\"_blank\"\u003e1 Year Limited Parts Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":46944069091577,"sku":"FPEFPE-34660-BLK","price":91.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/5428\/0953\/files\/6e59d58f54e839d105787fe01cc53f6d.jpg?v=1760643358"},{"product_id":"afe-15-23-dodge-challenger-15-23-dodge-charger-srt-hellcat-2-50in-supercharger-power-pulley-kit","title":"aFe 15-23 Dodge Challenger \/ 15-23 Dodge Charger SRT Hellcat 2.50in Supercharger Power Pulley Kit","description":"Enhance your engine's performance with our bolt-on aFe POWER Pulley kit. By changing the pulley diameter, you can adjust the spin rate of the supercharger, resulting in increased boost and amplified power. The aFe POWER Pulley kits are meticulously crafted to achieve a perfect equilibrium of lightweight design and high strength through precision machining. Count on our pulley kits for optimal functionality, a flawless fit, and an impeccable finish, ensuring a seamless boost to your engine's power. Pulleys crafted from high-quality 6061-T6 billet aluminum showcase exceptional characteristics. Through precision machining, these pulleys achieve a remarkable balance of light weight and high strength, ensuring not only optimal functionality but also a perfect fit and finish. Our pulley kits featuring a 17-4 stainless steel hub, combining corrosion resistance and high strength through precision machining, ensuring a perfect fit, impeccable finish, and optimal functionality. Please note that special tools are required for removing the factory pulley from the supercharger snout, and we recommend professional installation for the kit to ensure seamless performance.\u003cbr\u003e\u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/a7015a12aeb8e1a1fb531efa06ae140c.PDF\"\u003eInstallation Instructions\u003c\/a\u003e\u003cbr\u003e","brand":"aFe","offers":[{"title":"Default Title","offer_id":47207160512761,"sku":"AFE79-10009","price":298.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/5428\/0953\/files\/e7b20f2db415fc11b8ae9dd4a0709cc2L.jpg?v=1768041342"}],"url":"https:\/\/octanehaus.com\/collections\/pulleys-crank-underdrive.oembed","provider":"Octane Haus","version":"1.0","type":"link"}