Fastenings & Fixings

Cover Cap For Plenum Chamber Cover, Black.
The Porsche Cover Cap for Plenum Chamber Cover is a genuine OEM finishing piece designed to secure and complete the plenum chamber area beneath the windshield. Finished in black, these caps neatly close off the ends of the plenum chamber cover, preventing debris and moisture from entering while preserving the clean, factory look of your Porsche.

Fits:

• Porsche Boxster 986 2.7L 1999-02
• Porsche Boxster S 986 3.2L 1999-02
• Porsche Boxster 986 2.7L 2003-04
• Porsche Boxster S 986 3.2L 2003-04
• 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>>

What This Product Does:

• They act as end caps / cover caps on the cowl / plenum / windscreen base / vent grille area, covering the ends of the trim or grille to provide a finished look.
• They help prevent water, debris or dirt ingress into the cowl / dash vent cavities by sealing off the open edges where grille meets body.
  
• They provide aesthetic finish and protection to fasteners, edges or joints in the cowl / plenum area.
  
  

Signs / Symptoms Of Wear, Damage Or Missing Caps:

• The cap is broken, cracked, faded, or missing, leaving the edge exposed.
  
• You see visible fasteners, rough edges or openings at the cowl edge / grille.
  
• You notice water ingress, dirt or debris entering behind the grille or cowl area (especially in rain or car washes).
  
• The appearance is inconsistent (one side has cap, the other doesn’t) — visually unbalanced.

Why Replacement Matters:

• Restores a clean, factory-finished appearance to the cowl / grille area.
  
• Helps keep out water and debris, protecting the underside of the cowl, vent passages, and interior of the dash.
  
• Prevents rust, corrosion or wear to components under the cowl that might be exposed if edges are open.
  
• A small, low-cost part, but gives a big touch to visual completeness and protection.

Diagram Ref No 9

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9965725

The product you are viewing cross references to these numbers

Large captive nut for front radiator console; sold individually.



-- x 10 required per vehicle -- 
Porsche Carrera GT 2004-06
-- x4 required per vehicle --

Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-12 
Porsche 987 Cayman 2006-12
Porsche 996 Carrera 1998-05
Porsche 996 Turbo / GT2 2001-05 
Porsche 996 GT3 1999-05
Porsche 997 Carrera 2005-12 
Porsche 997 GT3 2007-11
-- x2 required per vehicle -- 
Porsche 970 Panamera 2010-16

M6 x 30 hex. head bolt for multiple applications.

Sold individually. 

Fits:
Porsche 986 Boxster 1997-04

Porsche 987-1 Boxster 2005-08
Porsche 987-1 Cayman 2005-08

Porsche 993 Carrera 1994-98
Porsche 993 Turbo 1995-98

Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05

Porsche Carrera GT 2004-06

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90037817701

The product you are viewing cross references to these numbers

M6 x 30 hex. head bolt for multiple applications.

Sold individually. 

Fits:
Porsche 986 Boxster 1997-04

Porsche 987-1 Boxster 2005-08
Porsche 987-1 Cayman 2005-08

Porsche 993 Carrera 1994-98
Porsche 993 Turbo 1995-98

Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05

Porsche Carrera GT 2004-06

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90037817701

The product you are viewing cross references to these numbers

Replacement bracket - metal - for the coolant pipes running to/from the heater core. Sits by transmission.



Fits:
Porsche 996 Turbo / S / GT2 2001-05*
Porsche 996 GT3 1999-05

*Please be advised, this part is only for vehicles with a manual transmission. If you have a Tiptronic 996, you must order 99610653372 (LEFT) and 99610653471 (RIGHT) instead.

Click 'Zoom in' for large parts diagram.
Diagram ref no. 9 & 10

Panel screw front wing ST 6,3 x 14

Sold each - 22 required per car

Fits:
Porsche 986 Boxster - 1997 to 2004
Porsche 987.1 / 987.2 Boxster - 2005 to 2012
Porsche 987.1 / 987.2 Cayman - 2005 to 2012
Porsche 996 - 1997 to 2005
Porsche 997.1 / 997.2 - 2005 to 2012

Diagram ref no 3

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99907342202

The product you are viewing cross references to these numbers

Self-tapping screw - 3.5 x 12 - for the glove compartment lid. 

Sold individually; x11 required per vehicle. 

Fits:
Porsche 987 Boxster 2005-12
Porsche 987 Cayman 2006-12

Porsche 996 Carrera 3.6L - 2002 Model Year Only*
Porsche 997 Carrera 2005-12

Porsche 996 Turbo 2002-05 - 2002 Model Year Only*
Porsche 997 Turbo 2007-13

Porsche 996 GT3 2002-05 - 2002 Model Year Only*
Porsche 997 GT3 2007-11

Diagram ref. 27.

*NOTE: For Porsche 996 Carrera, Turbo, and GT3 models, this part number is only applicable to cars produced for the 2002 model year. For the remaining years of production, 99907330807 is used instead, which is also fitted to 986 Boxster models.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99907324907

The product you are viewing cross references to these numbers

Screw, Hexagon Head, M 12 x 1,5 x 95.
Secures Front lower control arm to the cross member frame.

Fits:
Porsche 986 Boxster
Porsche 987 Boxster MKI & MKII
Porsche 987 Cayman MKI & MKII

Porsche 996 Carrera / Turbo / GT3
Porsche 997.1 Carrera / Turbo
Porsche 997.2 Carrera / Turbo

Diagram reference No. 4

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90037816501

The product you are viewing cross references to these numbers

Screw, Hexagon Head, M 12 x 1,5 x 95.
Secures Front lower control arm to the cross member frame.

Fits:
Porsche 986 Boxster
Porsche 987 Boxster MKI & MKII
Porsche 987 Cayman MKI & MKII

Porsche 996 Carrera / Turbo / GT3
Porsche 997.1 Carrera / Turbo
Porsche 997.2 Carrera / Turbo

Diagram reference No. 4

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90037816501

The product you are viewing cross references to these numbers

Stud - M10 x 102 mm - which threads into the front of the block and locates the engine mount carrier. 

Four required per vehicle. 

Fits:
Porsche 996 Carrera 2 / 4 / 4S 1998-05
Porsche 997.1 Carrera 2 / 2S / 4 / 4S 2005-08

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99921811001

The product you are viewing cross references to these numbers

Tapping Screw.
Ensure your Porsche cover panels are fastened correctly with this genuine OEM Porsche tapping screw. Designed specifically for Porsche 911 996 series and Boxster 986 models, this oval-head M5 × 29mm screw secures pollen filter housing cover with factory-specified fit and finish.  

Sold Each.
x2 Required Per Car.

Fits:

• Porsche Boxster 986 2.5L 1997-99
• Porsche Boxster 986 2.7L 1999-02
• Porsche Boxster S 986 3.2L 1999-02
• Porsche Boxster 986 2.7L 2003-04
• Porsche Boxster S 986 3.2L 2003-04
• 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

Diagram Ref No 12

What This Product Does:

• This screw secures the pollen filter housing cover.
  
• It ensures the cover remains firmly attached, aligns properly, prevents vibration or loosening, and maintains cosmetic appearance and protection from water/dirt ingress.

When Replacement Might Be Needed:

• The original screw is missing, damaged, or has the head stripped — this can happen during removal of the cover or during servicing 
  
• The cover is loose, rattling or misaligned — sometimes a missing or incorrect screw is the cause of panel movement or cover vibration.
• The screw shows corrosion or wear — old screws may degrade.

Why Replacement Matters:

• Proper fit and torque: The correct length, head style and thread match ensures the cover is secured properly without risk of over-penetration, cross-threading or insufficient grip.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99907314301

The product you are viewing cross references to these numbers