Common Fracture Points on the Low-Profile TSX Hoodline
A rock hitting the bottom three inches of the TSX windshield almost always results in an immediate horizontal split across the driver's vision. Because this car shares its aggressive front clip with the international CL9 Accord, the glass sits relatively low behind a short aluminum hood, leaving the lower glass edge directly exposed to highway debris thrown over the wiper cowl. The base of the windshield takes the brunt of stone impacts before the airflow sweeps them over the roof.
Stress fractures are equally frequent along the side pillars. If road grit gets wedged between the glass edge and the exterior A-pillar drip moldings, vibration against the rigid body creates localized tension points that suddenly spider outward when the cabin heater blows hot air against frozen glass. The windshield itself is an uncomplicated piece of safety glass without forward-facing cameras, de-icer elements, or rain-sensor arrays, meaning cracks rarely trigger electronic errors, but the mechanical stress around the perimeter requires careful physical fitment to prevent tension cracks after replacement.
Hardware Details for the CL9 Windshield Assembly
Replacement glass for this model is identified universally under NAGS part number FW02388, which features the standard green solar tint, an integrated blue sunshade band along the brow, a bottom VIN viewing window, and the factory mirror bracket pre-bonded to the interior face.
| Component | Part Number Reference | Function & Placement |
|---|---|---|
| Glass Unit | FW02388 / 73111-SEC-A11 | Laminated green tint glass with blue sunshade band |
| Upper Reveal Molding | 73150-SEA-013 | Flexible top rubber seal bordering the roof line |
| Rubber Dam Strip | 04731-SEA-000 | Internal perimeter glass spacing dam |
| Left Pillar Retainer | 91570-SDC-305 | Secures exterior driver-side A-pillar drip trim |
| Right Pillar Retainer | 91571-SDC-305 | Secures exterior passenger-side A-pillar drip trim |
When you set up an appointment, I typically pull up to your driveway about an hour after booking to handle the swap on-site so the car does not sit with a spreading crack. The aftermarket glass matches the exact curvature of the original Asahi glass, ensuring the factory rearview mirror slips onto the pre-attached mounting button without wobble or adaptation.
Fragile Pillar Retainers and Cowl Alignment Issues
The biggest problem area on the 2004–2008 TSX involves the exterior side moldings. Acura documented this issue in Technical Service Bulletin 09-030 because the plastic side trim retainers become brittle from UV exposure and engine heat. The moldings cannot simply be pried upward without snapping the internal teeth on clips 91570-SDC-305 and 91571-SDC-305. When an inexperienced hand forces these pieces off, broken clips are often ignored; once the car hits 80 km/h, the unlatched pillar molding lifts in the wind, rattling loudly against the steel frame or tearing away entirely.
The two-piece plastic cowl panel spanning the base of the windshield beneath the wiper linkages presents another common failure point. The rear edge of the cowl features an interlocking lip that must slide firmly beneath the bottom lip of the glass. If that joint is misaligned, rainwater rolling down the windshield bypasses the integrated drainage channels, dumping straight into the cabin fresh-air intake and soaking the cabin air filter behind the glove compartment.
- Top reveal molding 73150-SEA-013 must sit perfectly flush against the roof edge to eliminate whistling.
- Lateral drip rails require intact clip retainers to prevent highway wind vibration.
- The lower two-piece cowl assembly must lock into the base groove to keep water out of the cabin filter box.
- Framed door glass eliminates the window indexing issues seen on frameless sport coupes, so vertical glass margins remain consistent.
