15pc 20mm Oil Drain Plug Crush Washer 11126-AA001 Replacement for Subaru

Direct replacement for Subaru OEM 11126-AA001 (11126AA001) and 11126-AA000 (11126AA000). Cross-references with aftermarket numbers 311680100, ODP65311, 18001800, 095142, 705050, and 19139. Dimensions: 20mm / 0.79in ID, 27mm / 1.06in OD, 1.5mm / 0.06in thickness. 15-pack value — enough for 15 oil changes, over 5 years of maintenance.

this is the 20mm engine oil drain plug washer (11126-AA001) — different from the 16mm transmission and differential washer (803916010). Subaru uses different size washers for different drain points. Always verify your OEM washer part number before ordering.

Manufactured from durable steel matching the original Subaru factory specification. Steel crush washers compress under torque to fill microscopic surface imperfections between the drain plug and oil pan, creating a tight, leak-free barrier. Provides reliable sealing performance and consistent crush characteristics across thousands of installations. Torque drain plug to Subaru specification of 33 ft-lbs (44 Nm).

Crush washers are single-use components — Subaru recommends replacing the gasket at every oil change. Reusing an old crush washer is one of the most common causes of oil drips and leaks after service. A fresh washer ensures a proper seal every time, keeping your garage floor and driveway clean.

Compatible with Subaru Outback (1995-2024), Forester (1998-2024), Impreza (1993-2024), WRX (2002-2024), STI (2004-2021), Legacy (1990-2024), Crosstrek (2013-2024), Ascent (2019-2024), BRZ (2013-2024), Baja (2003-2006), Tribeca (2006-2014), Justy, Loyale, SVX, XT. Works with all Boxer engines 1.8L-3.6L. Model years 1985-2024. Please verify your OEM washer number before ordering.