{"product_id":"sinister-diesel-fuel-cap-for-1999-2007-2020-2021-ford-7-3l-6-0l-6-7l-powerstroke-2012-2017-gm-duramax-6-6l","title":"Sinister Diesel Fuel Cap for 1999-2007 \u0026 2020-2023 Ford 7.3L, 6.0L, 6.7L Powerstroke","description":"\u003cp\u003eThe Sinister Diesel Billet Fuel Cap is a premium replacement for the factory fuel cap used on select 1999–2007 and 2020–2023 Powerstroke pickup trucks. Over time, the factory plastic fuel caps can crack, loosen, or fail altogether—allowing dirt, moisture, and debris to enter the filler neck.\u003c\/p\u003e\n\u003cp\u003eThis Sinister Diesel fuel cap is designed to replace those worn factory units while maintaining proper sealing and fitment. The internal sealing components follow the factory-style design to ensure reliable operation, while the exposed outer cap is upgraded to CNC-machined billet aluminum for added strength and a refined appearance.\u003c\/p\u003e\n\u003cp\u003eFinished in Sinister Blue anodizing and laser-etched with the Sinister Diesel logo, this fuel cap delivers a subtle but functional upgrade every time you fuel up—restoring confidence, fitment, and visual appeal without changing how your fuel system operates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect replacement for worn, cracked, or missing factory fuel caps on pickup trucks\u003c\/li\u003e\n\u003cli\u003eRetains factory-style internal sealing design for proper fit and function\u003c\/li\u003e\n\u003cli\u003eCNC-machined billet aluminum outer cap for improved durability and appearance\u003c\/li\u003e\n\u003cli\u003eAnodized in Sinister Blue for corrosion resistance and long-term finish\u003c\/li\u003e\n\u003cli\u003eLaser-etched Sinister Diesel logo for a clean, finished look\u003c\/li\u003e\n\u003cli\u003eO-ring seal helps keep dirt and moisture out of the fuel system\u003c\/li\u003e\n\u003cli\u003eIntegrated magnet allows the cap to be securely held while fueling\u003c\/li\u003e\n\u003cli\u003eSimple drop-in installation on threaded pickup filler necks\u003c\/li\u003e\n\u003cli\u003eBacked by a 2 year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(1) Sinister Diesel Billet Fuel Cap\u003c\/li\u003e\n\u003cli\u003e(1) Viton O-ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1999-2007 \u0026amp; 2020-2023 Ford F-250 7.3L\/6.0L\/6.7L Powerstroke\u003c\/li\u003e\n\u003cli\u003e1999-2007 \u0026amp; 2020-2023 Ford F-350 7.3L\/6.0L\/6.7L Powerstroke\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThis fuel cap is intended for pickup trucks only. Ford Excursion and Cab \u0026amp; Chassis models may use different filler neck designs—fitment must be verified before ordering.\u003c\/li\u003e\n\u003cli\u003eImportant 1999 model note: Some 1999 trucks use a snap-in style fuel cap. This fuel cap is designed for trucks with a threaded fuel filler neck only. Please verify your truck uses a threaded cap before purchasing.\u003c\/li\u003e\n\u003cli\u003eWARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sinister Diesel","offers":[{"title":"Default Title","offer_id":68180558577985,"sku":"SD-FC-FUEL-U","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/2504\/1821\/files\/sd_product_images_RAW144809466_fb4b5373-43e5-4164-9424-4be60f108f75.jpg?v=1793884733","url":"https:\/\/rudysdiesel.com\/products\/sinister-diesel-fuel-cap-for-1999-2007-2020-2021-ford-7-3l-6-0l-6-7l-powerstroke-2012-2017-gm-duramax-6-6l","provider":"Rudy's Performance Parts","version":"1.0","type":"link"}