{"product_id":"brake-shoes-pa4709","title":"Brake Shoes PA4709 \/ FMSI 4709 - 16.5\" x 7\" S-Cam Heavy-Duty","description":"\u003cp\u003eThe S-Cam air-brake design is older than most of the drivers using it. Its endurance comes from being almost unreasonably simple, a cam that rotates to push a roller up the back of a shoe, the shoe expanding against a drum, the drum slowing a wheel. The PA4709 is the standard friction-grade shoe for 16.5 by 7 inch drum brakes, the same geometry as the Q-Plus version, with the friction formulation calibrated for line-haul duty where most braking events are moderate and steady rather than emergency or sustained-grade.\u003c\/p\u003e\n\n\u003ch2\u003eFits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e16.5\" x 7\" S-Cam air brake systems\u003c\/li\u003e\n\u003cli\u003eClass 8 tractor steer and drive axles\u003c\/li\u003e\n\u003cli\u003eHeavy-duty trailers with S-Cam actuation\u003c\/li\u003e\n\u003cli\u003eFMSI designation: 4709 (standard friction grade)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCross-Reference\u003c\/h2\u003e\n\u003cp\u003eThe PA4709 carries the FMSI 4709 industry reference. For sustained-grade braking duty (long mountain pulls, heavy trailers), the Q-Plus equivalent \u003ca href=\"\/products\/brake-shoes-pa4707\"\u003ePA4707\u003c\/a\u003e is the better spec match.\u003c\/p\u003e\n\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eStocked in Hodgkins, Illinois. Orders placed before 2:00 PM Central Time ship the same business day. Net-30 terms available to qualified fleet accounts. For bulk fleet pricing, \u003ca href=\"\/pages\/contact\"\u003econtact us directly\u003c\/a\u003e.\u003c\/p\u003e","brand":"Steinberg","offers":[{"title":"Default Title","offer_id":53129425387886,"sku":"PA4709","price":55.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.steinbergus.com\/products\/brake-shoes-pa4709","provider":"Steinberg","version":"1.0","type":"link"}