{"product_id":"freightliner-tractor-trailer-air-valve-knobs","title":"Freightliner Tractor \u0026 Trailer Air Valve Knobs","description":"Your \u003cb\u003esemi truck interior\u003c\/b\u003e has never looked so good! Accent your dash with beautiful, high quality chrome plated aluminum knobs. Features the Freightliner logo engraving. Knobs will never tarnish, are scratch resistant, and easy to clean. \u003cbr\u003eChoose shape from drop down menu. \u003cbr\u003eSold individually. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eTo Install:\u003c\/b\u003e \u003cli\u003eBefore taking off your plastic knobs, set the yellow and red stickers on your dashboard behind the corresponding valve. \u003c\/li\u003e\u003cli\u003eUnscrew the plastic knobs and install the corresponding chrome knobs onto each valve. \u003c\/li\u003e\u003cli\u003eMake sure the set screw on your chrome knob is not already engaged before starting ignition. \u003c\/li\u003e\u003cli\u003eScrew the button and align the logo the way you want it. \u003c\/li\u003e\u003cli\u003eTighten the set screw with a 3\/32 Allen wrench, not included.\u003c\/li\u003e","brand":"DELPANN DISTINCTION INC","offers":[{"title":"Octagon \/ Trailer","offer_id":51837671309634,"sku":"292416","price":74.99,"currency_code":"USD","in_stock":true},{"title":"Square \/ Tractor","offer_id":51837671342402,"sku":"292417","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/292646b.jpg?v=1768476244","url":"https:\/\/www.iowa80.com\/products\/freightliner-tractor-trailer-air-valve-knobs","provider":"Iowa 80","version":"1.0","type":"link"}