{"product_id":"mack-logo-tractor-and-trailer-air-valve-knobs","title":"Mack Logo Tractor and Trailer Air Valve Knobs","description":"\u003cp\u003eAccent your dash with this beautiful, high quality chrome plated aluminum Mack knob. Knob will never tarnish, is scratch resistant and easy to clean.   Choose shape from drop down menu.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eMade of chrome plated aluminum\u003c\/li\u003e\r\n\u003cli\u003eSold individually\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cstrong\u003eTo Install:\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eBefore taking off your plastic knobs, set the yellow and red stickers on your dashboard behind the corresponding valve.\u003c\/li\u003e\r\n\u003cli\u003eUnscrew the plastic knobs and install the corresponding chrome knobs onto each valve.\u003c\/li\u003e\r\n\u003cli\u003eMake sure the set screw on your chrome knob is not already engaged before starting ignition.\u003c\/li\u003e\r\n\u003cli\u003eScrew the button and align the logo the way you want it.\u003c\/li\u003e\r\n\u003cli\u003eTighten the set screw with a 3\/32 Allen wrench, not included.\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"DELPANN DISTINCTION INC","offers":[{"title":"Square \/ Tractor","offer_id":51838009213250,"sku":"443436","price":67.99,"currency_code":"USD","in_stock":true},{"title":"Octagon \/ Trailer","offer_id":51838009246018,"sku":"443437","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/444460a.jpg?v=1768484305","url":"https:\/\/www.iowa80.com\/products\/mack-logo-tractor-and-trailer-air-valve-knobs","provider":"Iowa 80","version":"1.0","type":"link"}