|land=België
|lijnnr=523
|route=Kortenberg - Erps-Kwerps - Veltem-Beisem - Winksele - Leuven - Heverlee Heilig Hartinstituut
|vervoerder=[[Staca]] i.o.v. [[De Lijn]]
|concessie=Vlaams-Brabant
{{RouteRij| {{Rimg|rsr}} | Veltem-Beisem, Radioweg}}
{{RouteRij| {{Rimg|rsr}} | Veltem-Beisem, Steenweg}}
{{RouteRijRouteRijStation| {{Rimg|rsTr}} | [[Veltem-Beisem|Veltem|Veltem-Beisem, Station]]}}
{{RouteRij| {{Rimg|rsr}} | Winksele, Lindenboom}}
{{RouteRij| {{Rimg|rsr}} | Winksele, Kabien}}
{{RouteRij| {{Rimg|rsr}} | Leuven, Naamse Poort}}
{{RouteRij| {{Rimg|rsr}} | Heverlee, Groenstraat}}
{{RouteRijRouteRijStation| {{Rimg|rsTr}} | [[Heverlee|Heverlee|Heverlee, Station]]}}
{{RouteRij| {{Rimg|rs0}} | Heverlee, Heilig Hartinstituut}}
}}