Belts / Tensioners / Rollers


Fits:
Porsche 996 Turbo 2001-05
Porsche 996 GT3 2000-05
Porsche 997 Turbo / GT2 2007-09
Porsche 997 GT2 RS 2011
Porsche 997 GT3 2007-11
Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610623871
The product you are viewing cross references to these numbers
- 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 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
- Porsche 997 MKII GT3 2010>>
- Porsche 997 MKII Turbo 2009>>
- Porsche 997 MKII GT2 RS 2011>>

Sold individually.
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 Carrera 1998-05
Diagram ref. 5.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90006711704
The product you are viewing cross references to these numbers
- 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

Sold individually.
Fits:
Porsche 987-1 Boxster 2005-08
Porsche 987-1 Cayman 2006-08
Porsche 996 Turbo 2001-05
Porsche 996 GT2 2001-05
Porsche 996 GT3 / RS 1999-05
Porsche 997-1 Carrera 2005-08
Porsche 997-1 Turbo 2007-09
Porsche 997-1 GT2 2008-09
Porsche 997 GT3 / RS 2007-11
Porsche 997-2 GT2 RS 2010-13
Diagram ref. 5.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90006711705
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
- Porsche 997 MKII GT2 RS 2011>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

Sold Individually.
Fits:
Porsche 986 Boxster 1997>>2004
Porsche 987.1 Boxster MKI 2005>>2008
Porsche 987.1 Cayman MKI 2006>>2008
Porsche 996 Carrera 1998>>2005
Porsche 997.1 Carrera MKI 2005>>2008
Diagram Ref No 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90038702001
The product you are viewing cross references to these numbers
- 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 Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 996 Carrera 3.4L 1988-99*
Diagram ref. 14.
*NOTE: This bolt is only compatible with 2.5L 986 Boxster models, as well as 1998–1999 996 models with engine numbers up to M66X 06240 (or M68X 02730 for Carrera 4 models with an electronic accelerator, option code 620). If you're unsure whether this fits your vehicle, please feel free to contact us with your engine number for confirmation. You can also check your existing bolt for size...
- If it measures M8 x 55, this is the correct part.
- If it measures M8 x 60, you will need the later version instead.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037815001
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01

Fits:
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04
Porsche 996-1 Carrera 3.4L 1999*
Porsche 996-1 Carrera 3.4L 2000-01
Porsche 996-2 Carrera 3.6L 2002-05
Diagram ref. 14.
*NOTE: There is a VIN split for 1999 model year 996 Carrera models, and this bolt is intended for the later engine type—specifically, engines from number M66X 06241 onward (Carrera 2) or M68X 02731 onward (Carrera 4 models with electronic throttle, option code 620). If you're unsure about compatibility, feel free to contact us with your vehicle’s VIN, or measure your existing bolt to confirm fitment...
- If it measures M8 x 60, this is the correct part.
- If it measures M8 x 55, you will need the earlier version instead.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037815901
The product you are viewing cross references to these numbers
- 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


Fits:
Porsche 996 >> 1999 Tiptronic
Porsche 996 >> 1999 Manual Without Air Con
Porsche 996 2000 >> Onwards ALL
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99614722360
The product you are viewing cross references to these numbers
- 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


Fits:
Porsche 996 Turbo 2000-2005
Porsche 996 GT3-1 1999-2005
Porsche 997 Gen 1 Turbo 2007-2009
Porsche 997 Gen 2 Turbo 2010-2013
Porsche 997 GT3-2 2007-2011
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99614722371
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 MKII GT3 2010>>
- Porsche 997 MKII Turbo 2009>>


Fits:
Porsche 996 >> 1999 Manual With Air Con
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99614722353
The product you are viewing cross references to these numbers
- 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
replacement for OE 99710224101

Fits on all Porsche 986, 996, 987, 997 models EXCEPT 2.9L (multi hole crank pulley pattern), DFI engines, GT2, GT3 and Turbo.
The RSS Harmonically Damped Underdrive Pulley is ideal for engines that are running light weight flywheels, engines that are built - bored/stroked and engines that are driven hard.
• Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator without detrimental effects on said ancillary systems.
• Dampens/reduces internal engine harmonics for improved engine performance, efficiency and longevity.
• Recommended for street or track use
Installation tool (wrench) and new OEM Pulley Washer included:
Dyno Image shows HP & TQ gain on 2005 997.1 Carrera S:
Baseline Dyno Run Mods: OEM Crank Pulley, OEM Software, Cargraphic Headers, Hi flow 200 Cell Cats, and Medium Sound Cargraphic Sport Mufflers
Modified Dyno Run: Added RSS Pulley (Part #608) to baseline car with existing mods:
+16 HP / +8 ft lbs TQ
*** NOTE: We recommend using/sourcing a new OEM Crank Shaft Pulley Bolt for your specific vehicle when installing the RSS Pulley. (Not Included with 608 Kit)
Please add Drive Belt for Under Drive Pully cars WITH Aircon Porsche 996/ Boxster 986/997 99610215199/1
MADE IN USA
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
608
The product you are viewing cross references to these numbers
- 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 Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Replacement for OE 99610211562, 99610511563,

The RSS Lightweight High Strength Underdrive Pulley is made from 6061-T6 aluminum. A must for any street or track enthusiast
• Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator without detrimental effects on said ancillary systems.
• Installation wrench included.
• Works on all Porsche 986, 996, 987, 997 models EXCEPT 2.9L (multi hole crank pulley pattern), 3.8L, DFI engines, GT2, GT3 and Turbo.
*** NOTE: We recommend using/sourcing a new OEM Crank Shaft Pulley Bolt for your specific vehicle when installing the RSS Pulley. (Not Included with 601 Kit)
Please read fitting instructions before purchase.
**Please note you will need a new shorter Pully Belt
99610215199/1
Under drive pulley w/ air conditioning - 2100mm
99610215198/1
Under drive pulley w/o air conditioning - 1905mm
Underderive Pulley Installation Instructions - CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
601
The product you are viewing cross references to these numbers
- 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 Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08


Fits:
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2006-08
Porsche 997 Carrera 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710226000
The product you are viewing cross references to these numbers
- 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 Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08


Fits:
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2006-08
Porsche 997 Carrera 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710226000
The product you are viewing cross references to these numbers
- 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 Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08


Fits:
Porsche 996 Turbo / GT2
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611501672
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05


Fits:
Porsche 996 Turbo / GT2
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611501672
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05

Fits
Porsche 996 Turbo
Porsche 996 GT2
Porsche 996 GT3 MK1 and MK2
Porsche 996 GT3RS
Porsche 997 Gen 1 Turbo
Porsche 997 Gen 1 GT2
Porsche 997 Gen 1 GT3
Designed to slow down the power steering pump to prevent it from overheating in racing conditions, this pulley will quickly pay for itself by not just saving your pump, but also your weekend at the track.
The pulley is fully balanced and is a 16% reduction. Its weight has been optimized to be 1/2 that of any other under-drive pulley on the market today.
An additional benefit is increased power and torque across the entire RPM range.
A boss on the front of engine case will need to be cut down slightly to clear the smaller pulley size. Comes complete with the crank pulley and a new smaller belt
Related reference numbers
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BBIPULLEY9967
The product you are viewing cross references to these numbers
- 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 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>