Please wait… 
Please wait while we process your order,
do not press the back button…
do not press the back button…
Your Porsche
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.
Category Filter
Rear Sound Absorber. Porsche 993 1994-98 - 99355621
99355621
Vehicle Group
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
Rear Sound Absorber.
Restore the acoustic performance of your Porsche with this genuine OEM sound absorber panel from Porsche. Designed for the body/trim of the 993 this part improves road-noise insulation, reduces rear-end rattles and helps maintain the quiet, refined cabin Porsche intended.
Fits:
Diagram Ref No 5
What This Product Does:
Symptoms & Signs You Might Need Replacement:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99355621
The product you are viewing cross references to these numbers
Restore the acoustic performance of your Porsche with this genuine OEM sound absorber panel from Porsche. Designed for the body/trim of the 993 this part improves road-noise insulation, reduces rear-end rattles and helps maintain the quiet, refined cabin Porsche intended.
Fits:
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Diagram Ref No 5
What This Product Does:
- A sound absorber in this context is a piece of material (panel, mat, liner) mounted inside the body structure (often rear wheel-house, rear body panel, underside or inner arch) that reduces transmission of road noise, exhaust noise, underbody noise, and helps improve cabin quieter ambience.
- It also helps with vibration damping and may assist in reducing resonance or panel noise from wheel wells or rear structures.
- So although it may be called “Rear Sound Absorber”, the role is acoustic & NVH (Noise-Vibration-Harshness) control rather than structural or driving component.
Symptoms & Signs You Might Need Replacement:
- Increased cabin noise, especially from the rear wheel well, rear body area, or under-carriage.
- Rattling or buzzing noises in the rear portion of the vehicle (especially with ageing inner liners or insulation panels) — the material may have detached or degraded.
- Visible damage or missing panel: The insulation mat or absorber might be missing, torn, sagging, wet (water ingress) or corroded substantively.
- Age and wear: Over time, especially on older 993 vehicles, insulation mats can break down, delaminate, or allow noise ingress compared to new.
- Improves cabin comfort: For premium vehicles like Porsche 911, maintaining a quiet interior is part of the driving experience. A degraded sound absorber reduces this comfort.
- Maintains NVH integrity: A whisking of rear-end noise, tyre/road noise or exhaust resonance can intrude into the cabin if the absorber is missing or ineffective. Replacing helps maintain factory spec.
- Prevents hidden issues: Sometimes, missing or degraded insulation allows moisture, road debris or dirt to encroach into body cavities, potentially causing rust or other unseen damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99355621
99355621500
99355621600
The product you are viewing cross references to these numbers
Prices from: £70.77
Related products
Vehicle Group
- 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 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Information
Foam part, Tool. Right, RHD cars.
Fits:
For RHD Cars
Porsche 997.1 C4 / C4S 2006>>
Porsche 997.2 C4 / C4S 2009>>
Porsche 997 Turbo 2007>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99755140200
The product you are viewing cross references to these numbers
Fits:
For RHD Cars
Porsche 997.1 C4 / C4S 2006>>
Porsche 997.2 C4 / C4S 2009>>
Porsche 997 Turbo 2007>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99755140200
99755140200
The product you are viewing cross references to these numbers
Price: £27.87
In stock
Vehicle Group
- 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 MKII Carrera C4 3.6L 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
Information
Luggage compartment foam part, compressor, rear.
Fits:
For RHD Cars
Porsche 997.1 C4 / C4S 2006>>
Porsche 997.2 C4 / C4S 2009>>
Porsche 997 Turbo 2007>>
Porsche 997 GT3 >>2009
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99755140500
The product you are viewing cross references to these numbers
Fits:
For RHD Cars
Porsche 997.1 C4 / C4S 2006>>
Porsche 997.2 C4 / C4S 2009>>
Porsche 997 Turbo 2007>>
Porsche 997 GT3 >>2009
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99755140500
99755140500
The product you are viewing cross references to these numbers
Price: £34.78
Orderable
Vehicle Group
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- 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
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Front Wheel Housing Sound Absorber.
Diagram Ref No 1
They act as acoustic insulation panels, dampening sound caused by tyre contact, road surface vibrations, and airflow within the wheel arch. In addition to improving cabin refinement, these absorbers can also help protect surrounding components by reducing debris impact and vibration transfer.
Symptoms Of A Missing Or Damaged Sound Absorber:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99755660
The product you are viewing cross references to these numbers
The Front Wheel Housing Sound Absorber is a genuine OEM noise-reduction component designed for the Porsche 911 (997 generation) and 987 Boxster / Cayman. These sound absorbers are installed inside the front wheel housing / wheel arch area and help reduce unwanted road and tyre noise from entering the cabin.
Fits:
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- 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 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 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Diagram Ref No 1
They act as acoustic insulation panels, dampening sound caused by tyre contact, road surface vibrations, and airflow within the wheel arch. In addition to improving cabin refinement, these absorbers can also help protect surrounding components by reducing debris impact and vibration transfer.
What This Product Does:
- Reduces road noise and tyre roar entering the cabin
- Damps vibration and acoustic resonance in the front wheel housing
- Helps improve overall driving comfort and refinement
- Protects inner wheel arch areas from minor debris contact
- Restores original factory insulation and fitment
Symptoms Of A Missing Or Damaged Sound Absorber:
- Increased road or tyre noise inside the cabin
- Loose, torn, or sagging wheel arch insulation
- Missing wheel housing lining after accident repair or suspension work
- Water or debris damage causing the absorber to break down
- Rattling or flapping noises from inside the wheel arch
Why Replacement Matters:
- Maintains factory-level cabin quietness and comfort
- Prevents exposed wheel arch areas from increased noise and vibration
- Improves interior driving quality—especially at motorway speeds
- Ensures correct OEM fitment after repairs or replacement of liners
- Helps preserve vehicle condition and resale value
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99755660
99755660500
99755660600
The product you are viewing cross references to these numbers
Prices from: £19.03