DeWalt OEM 5140134-79 replacement table saw fence knob DWE7490 DWE7491. Brand-new, genuine DeWalt fence knob, part# 5140134-79. Compatible with DWE7490X Type 1, DWE7490X Type 2, DWE7491RS Type 1, DWE7491RS Type 2, DWE7499GD Type 1, DWE7499GD Type 2. COMPANY INFO About Us. The item “DeWalt OEM 5140134-79 replacement table saw fence knob DWE7490 DWE7491″ is in …