A camshaft repair kit for INTRAAX 16-1/2" HXS Type brake systems with cam tube, servicing AA230, AA250, and AA300 models produced after May 2001. It services one wheel end, and its components are not available separately. A heavy-duty version is also available under 110.2505HD. It's cross-referenced to equivalent parts including E11897, E11897H, S26348, S28890, and R615025.