C-Pillar Mouldings and Retention Clips on the First-Gen RDX
Replacing the stationary rear quarter glass on the 2007–2012 Acura RDX involves far more than just setting a pane into the aperture. Bounded directly between the C-pillar and the D-pillar behind the rear passenger doors, this fixed glass panel sits flush against a dedicated exterior quarter glass reveal moulding (part of the 73510-STK and 73560-STK component family). This exterior garnish relies on fragile Honda/Acura 91568-STK series specialty clips—often designated as fasteners #1, #2, and #3—to secure the trim tightly to the steel body pillar.
When the original glass breaks or is forced out during a break-in, these plastic retaining clips almost invariably shear off or distort. Attempting to remount the perimeter moulding with broken clips creates a loose edge right at the C-pillar leading edge, inviting whistling highway drafts. An adhesive foam rubber front seal strip sits at that exact leading junction; if the trim does not lock down with intact fasteners, water and wind find an immediate path around the glass boundary.
Factory Privacy Tint and Glass Identification
Unlike the front door glass, the rear quarter windows on this platform come standard with dark factory privacy glass embedded directly into the tempered structure. The glass does not carry integrated radio antenna lines—Acura routed the audio reception elements into the rear hatch glass and the roof-mounted mast—nor does it feature defroster grids, keeping the pane purely structural and visual.
| Position | Acura OEM Part Reference | Glass Features |
|---|---|---|
| Right (Passenger Side) | 73500-STK-A00 (2007–2012) | Tempered safety glass, factory dark privacy tint, perimeter ceramic frit |
| Left (Driver Side) | 73550-STK-A00 (2007–2009) / 73550-STK-C00 (2010–2012) | Tempered safety glass, factory dark privacy tint, perimeter ceramic frit |
I operate entirely as a mobile service, travelling straight to your driveway or office parking spot anywhere across Toronto and the surrounding GTA to replace damaged RDX side glass on-site. Because this is a fixed quarter window design, there is no internal window regulator, division bar, or motor to service, but managing the interior requires care. Accessing the glass alignment pins and lower retention points demands partial release of the interior rear cargo quarter trim panels and the upper interior pillar garnishes before the new aftermarket glass panel can be positioned correctly.
Interior Access and Alignment Details
Acura fitted this glass with factory alignment locator pins that anchor into specific body sheet-metal recesses between the C and D pillars. These pins guarantee that the replacement glass sits at the exact depth required for the exterior moulding to snap flush with the rear door frame. Because the 2010 mid-cycle refresh introduced minor revisions to the driver-side moulding assembly—reflected in the update to part number 73550-STK-C00—ensuring the correct replacement contour is essential for the trim to sit parallel with the roofline and the rear quarter quarter-panel sheet metal.
Do you need to replace the exterior moulding every time the quarter glass breaks?
The exterior moulding itself can often be reused if it was not bent during an impact, but the underlying 91568-STK plastic fasteners almost always break during removal. New retaining clips are generally required so the moulding seats flat against the pillar without lifting at highway speeds.
Does the replacement glass match the factory rear tint on the RDX?
Yes. Aftermarket replacement quarter glass for this vehicle is manufactured with dark privacy tint baked into the tempered glass, matching the light transmission and coloration of the original rear passenger door windows and tailgate glass.
Are there any electrical connectors or antenna terminals attached to this panel?
No. The quarter glass on the 2007–2012 RDX is completely passive. There are no antenna grids, defroster lines, or electrical harness plugs running to either the left or right quarter window aperture.
