Rear Left Sway Bar End Link - 2011 528i

The rear left sway bar end link on your 2011 BMW 528i (chassis code F10) connects the stabilizer bar to the rear control arm, preventing body roll during cornering. BMW part numbers 33556777635 and its supersession 33556785133 fit all 2010-2017 F10 sedans regardless of engine variant (N52/N55/N63). When inspecting junkyard donors, prioritize 2012+ F10 or F11 Touring models to ensure you receive the updated design with improved ball joint seals. Always counter-hold the 5mm Allen stud while tightening the 16mm nut to 65 Nm—failure to do so destroys the internal hex. Common failure modes include clunking over expansion joints and visible grease leakage from torn boots. The F07 5 Series GT (2009-2017) shares identical rear suspension geometry, making it an excellent interchange source. Note that left and right links are mirror images; verify the directional bend in the rod before purchase.