WASHER - 6.6MMX11.8MMX2MM (Doosan DWD917170)

A worn washer can allow fastener loosening under vibration, leading to component misalignment or mechanical noise. This aftermarket replacement part references Doosan catalog number DWD917170. The washer type provides a bearing surface for a fastener head and distributes clamping load. A failed washer may cause galling or surface damage to the joined parts. During assembly, a washer of correct thickness and inner diameter ensures proper preload retention. Verify the serial number or application, then call (562) 693-7748. The part is a plain flat washer with 6.6mm inner diameter, 11.8mm outer diameter, and 2mm thickness.

Part number variants: DWD917170, dwd917170