Upgrade Your Brake System: Designed for trailers and RVs with tapered axles up to 7000 lbs, this electric brake drum has a 12-inch internal diameter with 8 holes on a 6.5 inch bolt circle. Compatible with 12-inch drums and assembled using 7/16-20UNF studs

Stable Braking Under Heavy Load: Crafted from heat-conductive gray cast iron, this brake hub drum assembly resists high temperatures and wear, handling long downhill drives, heavy loads, and frequent braking with ease. It provides quick response for secure stopping

Easy Installation: Installing your new brakes is a breeze! Our trailer brake drum it comes pre-assembled with core parts installed. Just add oil, follow the easy steps in the manual, and you're good to go

≥30000km Lifespan: These cast iron brake drums are shock-resistant and built to last. The dust shield keeps debris out, securing your system and ensuring it lasts longer, even on bumpy roads