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TR0809-AR, TR0809A, Koyo TR0809, TR0809AN
The TR0809 (often suffixed as TR0809-AR or TR0809A) is a proprietary automotive transaxle bearing featuring a highly specific 40x90x35.25mm footprint. Standard catalog bearings cannot replace this exact OEM dimension without causing severe mechanical misalignment. By securing this exact-match component, automotive rebuilders ensure perfect gear mesh stability within light truck differentials and passenger car transaxles, safely handling intense torque multiplication during rapid acceleration.