do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Rear ¼ Glass
By OE Match
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Fits:
Porsche 911 1965-77
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90154319120
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Fits:
Porsche 911 1965-07/1977
Click 'Zoom in' for large parts diagram
Diagram Ref: 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90154390
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Restore a secure, weather-resistant seal around the opening rear quarter windows with these OE Match Rear 1/4 Glass Seals – Opening Window Type. Designed for compatible classic Porsche applications equipped with opening rear quarter glass, these seals fit around the quarter window assembly to help create an effective barrier between the glass and vehicle body.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Diagram Ref No 4
Rear quarter window seals are exposed continuously to sunlight, temperature changes, rain, moisture and general ageing. Over time, the rubber can harden, shrink, crack or lose its flexibility, preventing the opening window from sealing correctly when closed.
What This Product Does:
- Seals around the opening rear quarter window.
- Helps prevent rainwater and moisture entering the cabin.
- Reduces unwanted wind entering around the glass.
- Helps minimise wind noise at speed.
- Provides a cushioned sealing surface between the glass and surrounding structure.
- Helps the opening quarter window sit securely when closed.
- Accommodates normal opening and closing of the quarter glass.
- Helps protect the surrounding interior from moisture.
- Replaces hardened, cracked, shrinking or damaged rubber seals.
- Restores a cleaner, original-style appearance around the quarter window.
- Is specifically intended for compatible opening rear quarter window applications.
Symptoms Of Wear Or Failure:
- Water entering around the rear quarter window.
- Dampness or water staining inside the vehicle.
- Increased wind noise around the quarter glass.
- Draughts entering the cabin at speed.
- Visible cracks or splits in the rubber.
- Hardened or brittle seal material.
- Rubber shrinking away from corners or edges.
- Flattened sections that no longer contact the glass correctly.
- The quarter window becoming difficult to seal when closed.
- Excessive movement or rattling from the glass.
- Deterioration or discolouration affecting the vehicle's appearance.
- Water collecting around the window aperture after rain or washing.
Why Replacement Matters:
- A rear quarter window seal must remain flexible enough to conform to the glass and surrounding aperture whenever the window is closed. As the rubber ages and hardens, it becomes less capable of maintaining consistent contact, allowing gaps to develop.
- Water entering through these gaps can damage interior trim, upholstery and surrounding materials. Persistent moisture may also encourage corrosion in concealed bodywork around the window aperture, potentially creating a significantly more involved restoration problem.
- A poor seal can also increase wind noise and draughts, making the cabin less comfortable at speed. On an opening quarter window, deterioration may prevent the glass from seating evenly when latched, potentially contributing to rattles and additional stress on the window hardware.
- For a classic Porsche restoration, fresh window seals also make an important cosmetic difference. Old, cracked or shrunken rubber can detract from otherwise well-restored glass, trim and bodywork.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90154390
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
Fits:
Porsche 911 / 912 - 1968 to 1977 Coupe
Porsche 911 (930) turbo 1975 to 1977 Coupe
Fits models with opening rear quarter windows
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90154392
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
Fits:
Porsche 911 / 912 - 1968 to 1977 Coupe
Porsche 911 (930) turbo 1975 to 1977 Coupe
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90154392
The product you are viewing cross references to these numbers
OEMatch Rear ¼ Glass — Fit, Finish, Clarity
Rear quarter glass and the associated seals help keep the cabin dry, quiet and protected on Porsche models. Properly chosen panels and their seals preserve appearance, limit water ingress and reduce wind noise, supporting long-term body condition and occupant comfort.
Available Types- Fixed rear quarter glass panels for non-opening windows
- Opening rear quarter glass (vent or pop-out) with fitted seals where applicable
- Complete glass-and-seal replacement units for easier installation
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original rear quarter glass.
OE (Original Equipment) refers to parts matching original specifications for the rear quarter glass and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM rear quarter glass engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Rear quarter glass is the side window positioned behind the rear doors. Some are fixed while others open slightly for ventilation. Replacements are available as plain glass panels or as matched assemblies that include moulded seals or bonded edges to restore correct sealing, alignment and finish.
Benefits Include- Restores watertight and airtight sealing to protect the interior and trim
- Reduces wind noise and vibration for a quieter cabin
- Protects bodywork from moisture-related corrosion where water ingress can occur
- Maintains visual alignment and factory appearance around the window aperture
- Impact damage such as chips or cracks from road debris
- Seal degradation from sunlight, ozone and age leading to hardening or shrinkage
- Corrosion or distortion of surrounding frames affecting glass seating
- Poor prior repairs or incorrect installation that compromise sealing or alignment
Replacing a damaged or weathered rear quarter glass and its seals helps prevent water ingress, removes sources of wind noise and reduces the risk of corrosion around the window aperture. Choosing a panel or matched assembly specified for Porsche models supports correct fit, preserves finish and helps retain the vehicle’s condition over time.
Advantages- Parts selected for Porsche applications to match shape and mounting points
- Materials specified for UV resistance and long-term sealing performance
- Direct-fit alternatives made to original-spec dimensions and tolerances for consistent installation
Fitting can appear straightforward but may require specific procedures such as correct positioning, sealing detail and careful reassembly to avoid panel damage. If you lack the right tools or experience, or if the vehicle includes hidden fasteners or sensors, seek professional installation. Recheck fasteners and seal compression after initial use.
