Rear Door Vent Glass and Tint Configurations
Matching the fixed rear door vent window on your truck comes down to identifying which factory tint package was specified from the factory. While the glass looks identical in shape from the outside across the entire run, Land Rover offered two distinct optical variants. Base and standard builds were fitted with Optikool green solar-absorbing glass, whereas higher trims or vehicles optioned with rear passenger comfort packages carry dark factory privacy glass.
Because these stationary quarter panes are mounted directly into the rear passenger doors rather than the rear cargo quarter panels, they are entirely passive pieces of tempered safety glass. Unlike the cargo side glass on this vehicle, the door vent panes do not house integrated radio antennas, alarm loops, or heating elements. However, the light transmission values between the standard solar-green glass and the privacy glass are noticeably different, and putting the wrong glass into the door frame stands out immediately against the adjacent roll-down glass.
| Glass Variant | Side / Position | OEM Reference (Historic) | Glass Characteristic |
|---|---|---|---|
| Standard Solar | Right Hand (Passenger) | LR044519 (CVB500860) | Optikool green solar-absorbing |
| Standard Solar | Left Hand (Driver) | LR044521 (CVB500870) | Optikool green solar-absorbing |
| Factory Privacy | Right Hand (Passenger) | LR044520 (CVB500880) | Dark smoke passenger tint |
| Factory Privacy | Left Hand (Driver) | LR044522 (CVB500890) | Dark smoke passenger tint |
The profile and edge contours of this door glass are shared with the preceding Discovery 3 (LR3), meaning the physical aperture within the door shell remained unchanged throughout the production transition in 2010. While I fit durable aftermarket replacement glass matched directly to your existing factory shade, I cover the glass itself with a one-year defect warranty alongside a lifetime guarantee on my workmanship so you never have to worry about improper seating or cabin whistling down the road.
Mechanical Mounting and Division Bar Hardware
Unlike bonded quarter glass that relies on a bead of structural urethane applied to the outer bodyshell, this rear door vent glass is purely mechanical. It sits captured directly inside the rear passenger door frame, held under compression by a continuous molded rubber run channel. The forward edge of the glass rests against a rigid, vertical division post that separates the stationary triangle from the movable drop glass.
A frequent issue encountered on these vehicles stems from the steel mounting bracket concealed within the bottom of that vertical division post. Water naturally drains through the door's window sweeps and run channel, which causes the internal steel foot of the channel bar to oxidize heavily over the years. When the division channel is loosened to seat the replacement vent glass, severe internal corrosion can cause the lower mounting tabs to bind or distort.
Because the rubber channel fits exceptionally tight to prevent highway wind noise, seating the glass perimeter requires careful alignment to avoid rolling the internal rubber lips. If the weatherstrip folds over itself inside the division post during reassembly, it introduces whistling at highway speeds and binds the drop glass regulator track. Taking the time to verify that the drop glass moves freely inside the front channel of the division bar ensures both windows function in harmony without dragging the regulator motor.
