{"product_id":"10in-x-2-1-4in-self-adjusting-electric-trailer-brake-assemblies-4-pack","title":"10in x 2-1\/4in Self-Adjusting Electric Trailer Brake Assemblies 4-Pack","description":"\u003cp\u003eIn this review the focus is on a practical replacement option for owners of 3,500 lb trailer axles who need dependable drum brakes without constant adjustments. The 4-pack of 10in x 2-1\/4in self-adjusting electric brake assemblies is aimed at DIY trailer maintainers and small fleet operators; the single biggest reason to buy is the built-in automatic tension adjustment that keeps brake shoe position correct over time, removing the need for frequent manual calibration after break-in. The reviewer found these to be straightforward replacements that match common OEM layouts.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e4-Pack Included:\u003c\/strong\u003e Comes with two left-hand and two right-hand assemblies so you can equip both axles on a tandem-axle trailer in one purchase.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePre-Installed Hardware:\u003c\/strong\u003e Each assembly ships with brake shoes, magnets, and springs already installed to simplify installation and reduce prep time.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSelf-Adjusting Design:\u003c\/strong\u003e Automatic tension adjustment maintains correct shoe-to-drum clearance over time, cutting down on maintenance after break-in.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e3,500 lb Axle Fit:\u003c\/strong\u003e Designed specifically for standard 3.5K trailer axles with 4-bolt brake flanges, making it suitable for many RV, cargo, and utility trailers.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOEM Compatibility:\u003c\/strong\u003e Direct replacement for common industry parts like Dexter K23-468-00 and K23-469-00, helping ensure fit and function without modifications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Heavy-duty backing plates and quality components provide consistent braking under load and a longer service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis set is best for trailer owners who need a reliable, ready-to-install replacement for worn electric drum brakes on 3,500 lb axles, including RV owners, contractors with utility trailers, and small business fleets that perform routine maintenance in-house. The inclusion of both left and right units in a 4-pack makes it efficient for tandem axle servicing.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include owners of trailers with nonstandard brake flanges, different drum sizes, or axles rated above 3,500 lb, since these assemblies are specified for standard 10in x 2-1\/4in drum systems and 3.5K axles only.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eReady-to-install 4-pack covers both sides on tandem axles and reduces parts hunting.\u003c\/li\u003e\n \u003cli\u003eSelf-adjusting mechanism reduces the need for manual brake adjustments after break-in.\u003c\/li\u003e\n \u003cli\u003ePre-installed shoes, magnets, and springs speed up installation and lower labor time.\u003c\/li\u003e\n \u003cli\u003eOEM-style replacement helps ensure compatibility with common trailers using Dexter equivalents.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eLimited to standard 10in x 2-1\/4in drum systems and 3,500 lb axles, so not universal for all trailers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eBrake Size\u003c\/td\u003e\n\u003ctd\u003e10in x 2-1\/4in\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e4 assemblies (2 LH, 2 RH)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eAxle Rating Fit\u003c\/td\u003e\n\u003ctd\u003e3,500 lb (3.5K)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMounting Pattern\u003c\/td\u003e\n\u003ctd\u003e4-bolt brake flange\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIncluded Hardware\u003c\/td\u003e\n\u003ctd\u003eBrake shoes, magnets, springs pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eOEM Cross Reference\u003c\/td\u003e\n\u003ctd\u003eReplaces Dexter K23-468-00 (LH) and K23-469-00 (RH)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eAdjustment Type\u003c\/td\u003e\n\u003ctd\u003eAutomatic self-adjusting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThese 10in x 2-1\/4in self-adjusting electric brake assemblies are a practical, cost-effective option for anyone maintaining trailers with 3,500 lb axles who want OEM-style replacements and lower ongoing maintenance. The pre-installed hardware and automatic adjustment deliver good value by cutting installation time and reducing the need for periodic manual adjustments, making them a sensible buy for most RV, cargo, and utility trailer owners.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDo these fit tandem axles?\u003c\/strong\u003e\u003cbr\u003eYes, the 4-pack includes two left-hand and two right-hand assemblies intended to outfit both axles on a tandem setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre shoes and springs included?\u003c\/strong\u003e\u003cbr\u003eYes, each assembly is shipped with brake shoes, magnets, and springs pre-installed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these work on heavier trailers?\u003c\/strong\u003e\u003cbr\u003eThey are specified for standard 3,500 lb axles, so trailers with higher axle ratings may require different, higher-capacity brakes.\u003c\/p\u003e","brand":"TRAILER SUPPLIES","offers":[{"title":"Default Title","offer_id":48185429360859,"sku":"B0FCHLHCM3","price":158.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71ETXlfwa7L._AC_SL1500.jpg?v=1769570412","url":"https:\/\/gearmusthave.com\/products\/10in-x-2-1-4in-self-adjusting-electric-trailer-brake-assemblies-4-pack","provider":"GearMustHave","version":"1.0","type":"link"}