The Meritor R801041 Slack Adjuster is a premium automatic unit engineered for reliable brake performance in commercial trucks and trailers. Featuring a 5.5″ arm length, 1.5″ spline diameter, and 10 spline teeth, it delivers accurate and consistent brake shoe adjustment. The automatic mechanism maintains optimal clearance, reducing wear and eliminating the need for frequent manual intervention. Built to Meritor’s rigorous durability standards, the R801041 supports long service life and dependable braking in demanding applications.