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bracket Genuine Porsche part 99631409104
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
- We are unable to provide fitting details for this product at this time. Please contact us for further information.

Reconditioned Power Steering Pump. 99631405002
Reconditioned units are sold on an exchange basis, A surcharge of £161.03 will be held and then refunded when the old one is returned.

Fits:
Porsche 986 Boxster 1998-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 996 Carrera 1998-05
Porsche 997 Carrera 2005-08
Please note: This product is sold on an exchange the deposit we will refund after you have returned your old part.
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
PLEASE NOTE:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
996314050X
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 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

Fits:
Porsche 996 GT3 1999-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99631409104
The product you are viewing cross references to these numbers
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04

Fits:
* M657 - for cars with power assisted steering
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 996 Carrera 1998-05
Porsche 997 Carrera 2005-08
This part number has been superseded from previous numbers:
- 99631405002,
Click 'Zoom in' for large parts diagram.
Diagram ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99631405003
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 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
The power steering pump converts engine power into hydraulic pressure for the power assisted steering system, enabling smooth, effortless steering and consistent responsiveness. Built to OE specification.
Fits:
* M657 - for cars with power assisted steering
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987C.1 Cayman 2005 - 2008
Porsche 996 Carrera 1998 - 2005
Porsche 997.1 Carrera 2005 - 2008
Diagram ref no 9
• Position on Vehicle: Mounted within the engine bay on the front accessory drive system, connected to the power-steering fluid reservoir and rack/column assembly.
• Cross-Reference / Alternative Numbers: OEM number 996 314 050 03 (sometimes referenced as 99631405003); supersedes part number 996 314 050 02.
• Applications: Replacement whenever the original pump shows symptoms such as whining noise, fluid leakage, reduced steering assist or erratic steering feel - helping to restore proper steering function and driver confidence.
The power steering pump is central to the assistive steering system, providing hydraulic pressure needed for effortless steering and precise control. When the pump begins to fail - through internal wear, leakage, or loss of hydraulic efficiency - drivers may experience noisy operation, heavier steering effort, or inconsistent responsiveness. Replacing it with a fresh unit restores hydraulic integrity, ensures consistent steering feel and prevents further wear on associated steering components.
When and why to replace:
• Steering becomes notably heavier or varied in effort than expected.
• Noticeable whining or groaning noise when steering, especially at low speeds.
• Visible fluid leakage from the pump or associated lines/fittings.
• After other steering components (rack, links) have been serviced - a failing pump would compromise the rebuild.
• On high-mileage vehicles where original pump has been in service long and may be approaching end-of-life.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99631405003
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 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

Fits
Porsche 996 Turbo
Porsche 996 GT2
These replace the glued in water pipe unions on
the water pump housing, power steering pump carrier and coolant connection housing. 3 x unions on the water pump housing 2 x unions on the coolant connection housing 1 x union on the power steering pump carrier
Compared to the factory fittings, these replacement billet fittings offers superior metallurgy to allow stronger, higher quality welds.
Extensive surface preparation and welding skills are required to properly weld the fittings.
The engine requires removing and the necessary components disassembled and thoroughly cleaned, ideally in a ultrasonic cleaner.
Afterwards, the pipes need to be meticulously welded into place and pressure tested for leaks prior to reinstalling the engine.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BBICOOLKIT996
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

Replacement power steering pump.

Fits:
Porsche 996 Turbo 2001-05 - Tiptronic transmission only.
Porsche 996 GT2 2001-05
Porsche 996 GT3 / GT3 RS 1999-05
--
Porsche 997.1 Turbo 2007-09 - Tiptronic transmission only.
Porsche 997 GT2 / GT2 RS 2007-13
Porsche 997 GT3 / GT3 RS / GT3 RS 4.0L 2007-11
NOTE: This product is now exclusively available from Porsche on an exchange basis. A refundable deposit of £247.08 is required upfront. Once the new unit is installed, you may return your original unit to us to qualify for a refund. Please note that this process may take several weeks, and the refund is contingent upon the manufacturer's approval.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
996314050DX
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 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII GT2 RS 2011-13

Fits:
Porsche 996 Turbo 2001-05 - Tiptronic transmission only.
Porsche 996 GT2 2001-05
Porsche 996 GT3 / GT3 RS 1999-05
--
Porsche 997.1 Turbo 2007-09 - Tiptronic transmission only.
Porsche 997 GT2 / GT2 RS 2007-13
Porsche 997 GT3 / GT3 RS / GT3 RS 4.0L 2007-11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99631405053
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 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII GT2 RS 2011-13
This set includes:
1 × New Steering Rack (OE reference 996 347 011 11)
1 × Power Steering Pump (OE reference 996 314 050 03)
Fits:
* M657 - for cars with power assisted steering
Porsche 986 Boxster 1997 - 2004
Porsche 996 Carrera 1997 - 2004
Left Hand Drive (LHD) Cars (like Europe)
*** We strongly recommend replacing the power steering pump at the same time as the steering rack. Swarf (metal particles) in the power steering system can circulate and cause damage to both components.
When ordered together, the steering rack and pump can be purchased as a discounted bundle, providing better long-term reliability and value.
If you choose to replace only the steering rack and, upon return of your exchange unit, we discover that the rack bar is scored or contaminated with swarf, this indicates that debris is present in the system. In such cases, we will advise replacing the pump as well — however, it will then be charged at the full retail price plus postage.
Please note: if we have advised that there is swarf in the system and you choose not to replace both components, any future warranty claims related to this issue will not be valid.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
STEERINGSET986996LHD
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
This set includes:
1 × Reconditioned Steering Rack (OE reference 996 347 012 11) **
1 × Power Steering Pump (OE reference 996 314 050 03)
Fits:
* M657 - for cars with power assisted steering
Porsche 986 Boxster 1997 - 2004
Porsche 996 Carrera 1997 - 2004
Right Hand Drive (RHD) Cars (like UK)
*** We strongly recommend replacing the power steering pump at the same time as the steering rack. Swarf (metal particles) in the power steering system can circulate and cause damage to both components.
When ordered together, the steering rack and pump can be purchased as a discounted bundle, providing better long-term reliability and value.
If you choose to replace only the steering rack and, upon return of your exchange unit, we discover that the rack bar is scored or contaminated with swarf, this indicates that debris is present in the system. In such cases, we will advise replacing the pump as well — however, it will then be charged at the full retail price plus postage.
Please note: if we have advised that there is swarf in the system and you choose not to replace both components, any future warranty claims related to this issue will not be valid.
** PLEASE NOTE:
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 1 to 2 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
STEERINGSET986996RHD.R
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
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed