Subaru 11126AA000 — Drain Plug Gasket
Overview
Oil pan drain plug gasket Subaru 11126AA000 seals the joint between the sump drain bolt and the engine oil pan. Manufactured from soft crushable aluminium alloy, this washer deforms under torque to fill surface irregularities across the mating faces. Dimensions feature an inner diameter of 20 mm, an outer diameter of 26 mm and a thickness of 2.0 mm. Factory part number Subaru 11126AA000 replaces former cross-references 11126AA040, 11126AA003 and 803920020. The crushable structure prevents engine oil seepage past the sump threads during operation, maintaining crankcase pressure. Professional workshops replace this single-use component during every engine oil service, as the compressed metal loses elasticity after initial tightening.
Fits Subaru Forester (1997–2024), Impreza (1992–2024), Legacy (1989–2024), Outback (1996–2024), XV / Crosstrek (2011–2024), Tribeca B9 (2005–2014) and BRZ (2012–2024). Compatible with petrol and diesel engine codes including EJ15, EJ20, EJ25, EZ30, EZ36, FA20, FB20 and FB25. Replace this washer at every oil change interval when removing the drain plug. Reusing a crushed washer causes slow fluid leaks, oil pan contamination or thread damage on the aluminium sump from over-torquing. Replacing the seal keeps the lubrication system sealed until the next scheduled maintenance interval, preventing fluid loss under high operating temperatures.
Subaru 11126AA000 — drain plug gasket. 4 offers available, starting from 11.39 USD.
Specifications
Manufacturer — Subaru. Article number — 11126AA000. Name — Drain Plug Gasket. Offers — 4. From — 11.39 USD.
Compatible cross-references
Replacements and analogues: Subaru 10991AA000, Subaru 10991AA001, Subaru 11109AA000, ACKOJA A630018, CORTECO 005666H, CORTECO 005666S, ELRING 108030, Ackoja A630018.
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