Original DeWalt 869318-00 — metal rail & support assembly for DeWalt mitre saws. This rail/support replaces damaged guide rails and support brackets to restore the saw’s sliding support and material support function, fitting onto the saw’s original mounting points.

Made as a single rail + support assembly (stamped metal rail with integral bracket and factory hole pattern), it’s supplied as the complete rail/support unit under part number 869318-00

Compatible models (listed by DeWalt parts diagrams and parts suppliers) include DW770 (Type 1 & Type 2), DW770GP (Type 2), DW771 (Type 1 & Type 2), DW777 (Type 1 & Type 2), DCS777, DWS771 and DWS777. Confirm the type number on your saw to ensure exact fit.

This genuine DeWalt rails+support is a direct-fit replacement that brings back rail stability and cutting capacity so you can get the saw back to work quickly. DeWalt parts like this rail are made to match the original mounting locations for straightforward replacement.