Three Types of Glass — Know What You''re Getting
When your windshield is replaced, there are three categories of glass the shop might install:
- OEM (Original Equipment Manufacturer) — Glass made by the same supplier that made the windshield in your car at the factory. Same specs, same thickness, same acoustic properties, same optical clarity.
- OEE (Original Equipment Equivalent) — Glass made by a different manufacturer to OEM specs. Built to meet the same standards, often from the same raw materials. Functionally equivalent in most cases.
- Aftermarket — Manufactured to lower price points. May meet minimum federal safety standards but not necessarily OEM specs for thickness, clarity, or acoustic properties.
Why It Matters More Than You Think
Your windshield is a structural component. Federal Motor Vehicle Safety Standard 212 requires it to withstand up to 30% of roof crush load in a rollover. A windshield that''s slightly off-spec doesn''t hold the same way.
For vehicles with ADAS cameras, glass optical clarity matters even more. The camera reads through the glass. If the glass has slight distortions that lower-grade glass sometimes has, the camera can''t read the road cleanly. You can calibrate correctly and still have a system that underperforms because the glass isn''t right.
What We Use
We use OEM and OEE glass sourced from verified suppliers. We won''t put aftermarket glass in a vehicle with ADAS — the risk of camera interference isn''t worth the $30 cost savings.
If you have a preference for factory OEM glass, tell us. We''ll get it. The lead time is sometimes 24 hours for specialty vehicles, but we''d rather take the extra day than put in glass that doesn''t belong there.
What to Ask Any Shop
Before you agree to a windshield replacement, ask:
- Is this OEM, OEE, or aftermarket?
- Who''s the supplier?
- Does it meet AGRSS standards?
- Is ADAS calibration included?
If they can''t answer those questions specifically, that''s the answer.
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