Keystone Cougar windshield & glass replacement
A Keystone Cougar window is a framed tempered unit supplied by Lippert or Kinro, typically $250–$900 installed depending on size. Order by measuring the rough opening and the frame flange, not by model year, because Keystone changed suppliers across production runs.

Keystone Cougar glass at a glance
- RV class
- Fifth wheel / travel trailer
- Chassis
- Laminated sidewall trailer body
- Model years
- 2000s–present
- Glass type
- Framed slider or radius-corner tempered glass windows
- Typical cost
- $250–$900 per window installed
- Glass lead time
- 3–14 business days
Towables like the Cougar use supplier-built windows rather than coach-specific glass, which is why measurement matters more than model lookup.
Get the rough opening size, the wall thickness and a photo of the frame corner. With those three, a parts supplier can match almost any Cougar window.
What to know before you order Keystone Cougar glass
- Wall thickness sets the frame clamp-ring size — a correct glass size in the wrong wall thickness will not seal.
- Dual-pane units that have fogged can sometimes be resealed by a glass specialist for less than a full replacement.
- Butyl tape plus a proper clamp ring torque pattern is the difference between a dry window and a delaminated wall two years later.
- Egress windows must be replaced with egress-rated units — do not substitute a fixed pane in an exit position.
How to get an accurate Keystone Cougar quote
- Have the VIN ready — on a fifth wheel / travel trailer the glass follows the Laminated sidewall trailer body, and model year decides the part.
- Say whether the damage is a chip, a running crack, a stress crack with no impact point, or dual-pane fogging — each is a different job.
- Ask whether the quote is OEM or aftermarket glass, and whether freight is included.
- Confirm the safe drive-away time so you know when the coach can move.
- Get the workmanship warranty on leaks and stress cracks in writing before work starts.
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Keystone Cougar Glass Questions
How much is a Keystone Cougar window?
About $250–$900 installed per window, driven mostly by size and whether it is single or dual pane.
How do I order the right one?
Measure the rough opening and the sidewall thickness, and photograph the frame corner. Supplier catalogs match on those, not on the Keystone model name.
Can a foggy dual pane be fixed instead?
Sometimes. Specialists can separate, clean and reseal the panes for less than replacement, though the result is not always as clear as new.