{"product_id":"demco-sb42029m-demco-rv-71-5054-trailer-brake-assembly","title":"Demco Trailer Brake Assembly – 12 Inch Free Backing Brakes, Left, Single | SB42029M","description":"\u003cp\u003eThe Demco SB42029M is a complete 12-inch hydraulic drum brake assembly for the left side of a trailer axle rated up to 5,200 lbs. It's a free-backing design: the shoes are built to release when the trailer rolls backward, which minimizes brake drag when backing up a trailer with surge brakes. The assembly is built for wet use, with a hot-dipped galvanized backing plate, stainless steel spring hardware, a plated wheel cylinder and riveted marine brake shoes, making it a good fit for boat trailers.\u003c\/p\u003e\u003cp\u003eThis listing is for one left-side assembly. Order the matching right-side assembly (SB42028M) to do both ends of an axle.\u003c\/p\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrailer axles rated up to 5,200 lbs with a 5 on 3-3\/4 inch brake mounting flange\u003c\/li\u003e\n\u003cli\u003eHydraulic (surge) trailer brake systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCheck your axle's brake flange bolt pattern, drum size and axle rating before ordering, or contact us with your axle details.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Demco\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e SB42029M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake type:\u003c\/strong\u003e Hydraulic drum, free-backing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 12 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Left\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle rating:\u003c\/strong\u003e 5,200 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting bolt pattern:\u003c\/strong\u003e 5 on 3-3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking plate:\u003c\/strong\u003e Hot-dipped galvanized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated install time:\u003c\/strong\u003e About 30 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Demco lists a limited 1-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBacking plate\u003c\/li\u003e\n\u003cli\u003eBrake shoes\u003c\/li\u003e\n\u003cli\u003eWheel cylinder\u003c\/li\u003e\n\u003cli\u003eActuating lever and adjusting screw\u003c\/li\u003e\n\u003cli\u003eSpring hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHelpful Links\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/demco-sb42028m-demco-rv-71-5053-trailer-brake-assembly\"\u003eDemco SB42028M right-side assembly\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/trailer-brakes-parts\"\u003eTrailer brakes \u0026amp; parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Availability\u003c\/h3\u003e\u003cp\u003eIn stock and ready to ship.\u003c\/p\u003e","brand":"Demco","offers":[{"title":"Default Title","offer_id":68406635462907,"sku":"SB42029M","price":96.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/3851\/7755\/files\/ImageServerAPI_fca1e9a4-d376-4b5d-9f4c-1809549b84a4.png?v=1793132520","url":"https:\/\/rvtowingpros.com\/products\/demco-sb42029m-demco-rv-71-5054-trailer-brake-assembly","provider":"RV Towing Pros","version":"1.0","type":"link"}