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Porsche 996 (911) (1997-2005) 996 GT3 MKI 1999-02 Chassis / Bodywork

Rear side glass

Rear side glass

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Sealing Washer Rear 1/4 Glass COUPE. Porsche 996 / 997.1 / 997.2 - 99654362500
2
Sealing Washer Rear 1/4 Glass COUPE. Porsche 996 / 997.1 / 997.2
Special Order item
99654362500
Product Information
Product Information

Sealing Washer Rear 1/4 Glass Coupe
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The Rear Quarter Glass Sealing Washer is a replacement sealing component for the fixed rear side window assembly on Porsche 911 Coupe models.

Fits:

  • Porsche 996 C2 3.4L 1997-08/01
  • Porsche 996 C4 3.4L 1997-08/01
  • Porsche 996 C2 3.6L 09/01-2005
  • Porsche 996 C4 3.6L 09/01-2005
  • Porsche 996 C4S 3.6L 09/01-2005
  • Porsche 996 TURBO 2000-05
  • Porsche 996 GT2 2001-05
  • Porsche 996 GT3 MKI 1999-02
  • Porsche 996 GT3 MKII 2003>>
  • Porsche 996 GT3 RS 2003-04
  • Porsche 997 MK1 Carrera 2 3.6L 2005-08
  • Porsche 997 MK1 Carrera 2S 3.8L 2005-08
  • Porsche 997 MK1 Carrera 4 3.6L 2005-08
  • Porsche 997 MK1 Carrera 4S 3.8L 2005-08
  • Porsche 997 MK1 TURBO 2007-09
  • Porsche 997 MK1 GT3 / GT3 RS 2007-09
  • Porsche 997 MK1 GT2 2007-09
  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • Porsche 997 MKII GT3 / GT3 RS 2010-11
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 997 MKII GT2 RS 2011-13

Diagram Ref No 10

It helps provide a protective seal around the relevant glass mounting point, supporting correct installation and reducing the risk of moisture entering around the fitting.

What Does It Do?

The sealing washer helps seal the relevant rear quarter window fitting, providing a protective barrier between adjoining components and helping maintain correct glass installation.

Why Does It Fail?

Common causes include:

  • Age-related deterioration
  • Compression and loss of flexibility
  • Exposure to moisture and temperature changes
  • Damage during glass removal
  • Incorrect installation

When Should It Be Replaced?

Replace if the washer is cracked, flattened, damaged or missing.

Inspection is recommended whenever the rear quarter glass is removed or refitted.

Checks & Diagnosis

Inspect the washer and surrounding mounting area for deterioration, moisture traces or damaged fittings.

Ensure the replacement is correctly positioned during installation and check for water ingress after refitting the glass.

Key Features

  • Replacement rear quarter glass sealing washer
  • Suitable for applicable 996 and 997 Coupe models
  • Helps seal the rear side window mounting area
  • Replaces worn or damaged original components
  • Ideal for window repairs and restoration

Porsche 996 & 997 Coupe Rear Quarter Window Seals

Rear quarter window sealing components help maintain correct glass installation and protect the surrounding interior from moisture ingress.

Replacing deteriorated washers during window repairs can help prevent leaks and ensure the glass assembly is correctly refitted.

Design911 supplies Porsche 996 and 997 rear quarter glass seals, window fittings and replacement bodywork components.



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About Rear side glass

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.

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