Rear side glass

Fits:
Porsche 991.1 Coupe - 2012 to 2016
High quality Lexan polycarbonate window.
CNC cut, formed and black out covering to match the original window.
OEM Hardcoat Finish
This window has the screw in 991.2 style retention pins, so replace your 991.1 windows with the problematic glue on pins.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DSM-991QGW
The product you are viewing cross references to these numbers
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16


Fits:
Porsche 991.1 C2 / C2S / C4 / C4S 2012-16 Cabrio
Porsche 991.2 C2 / C2S / C4S 2016>> Cabrio
Porsche 991 Turbo / Turbo S 2014>> Cabrio
POSTING GLASS & WINDSCREENS
Although we take great care in packaging glass, we cannot offer insurance to cover breakage.
Therefore, we advise customers that they purchase glass by mail order at their own risk.
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99154311
The product you are viewing cross references to these numbers
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
Preserve your Porsche’s sleek profile and cabin clarity with genuine Porsche and aftermarket rear side glass from Design911. These glass panels - also known as quarter windows — are precisely shaped to match your vehicle’s body contours, ensuring perfect fitment, crystal-clear visibility, and factory-correct styling.
Manufactured to OEM standards, our rear side glass selection includes fixed and opening quarter windows for both classic and modern Porsche models. Each panel is crafted from tempered or laminated safety glass, offering superior impact resistance, UV protection, and long-lasting transparency.
Whether you’re restoring a classic 911 or 356, repairing damaged glazing on a Cayman or Taycan, or upgrading to tinted glass for added comfort, Design911 supplies both genuine Porsche glass and high-quality aftermarket replacements for a precise, reliable finish.
Genuine Porsche Rear Side Glass
Factory-original Porsche rear quarter windows designed for
exact fitment, safety, and clarity - perfect for restorations and replacements.
Aftermarket Rear Quarter Glass Panels
Premium reproduction glass panels that replicate OEM
standards for quality, durability, and optical precision.
Fixed & Opening Rear Side Windows
Options for both fixed and hinged rear quarter windows,
maintaining factory specifications for various Porsche models.
Tinted & UV-Resistant Glass
Available in clear, green, and privacy tints, offering
additional sun protection and a premium finish.
Classic Porsche Quarter Windows
Authentic reproduction side glass for vintage Porsche models
such as the 356, 911 Classic, and 964 — ensuring original styling and accuracy.
Seals, Hinges & Mounting Hardware
OEM-grade rubber seals, trim pieces, and hinges for
watertight installation and smooth operation of quarter windows.