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Porsche O-Ring Genuine Porsche 99923054340

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View complete vehicle coverage Hide complete vehicle coverage 3 makes and models · 115 applications

Porsche 911 — 1999–2008 (85 applications)
Porsche Boxster — 1997–2008 (25 applications)
Porsche Cayman — 2006–2008 (5 applications)

Porsche 911

1999 Porsche 911 Carrera

Convertible 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

1999 Porsche 911 Carrera

Coupe 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

1999 Porsche 911 Carrera 4

Convertible 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

1999 Porsche 911 Carrera 4

Coupe 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2000 Porsche 911 Carrera

Convertible 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2000 Porsche 911 Carrera

Coupe 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2000 Porsche 911 Carrera 4

Convertible 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2000 Porsche 911 Carrera 4

Coupe 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2001 Porsche 911 Carrera

Convertible 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2001 Porsche 911 Carrera

Coupe 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2001 Porsche 911 Carrera 4

Convertible 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2001 Porsche 911 Carrera 4

Coupe 996 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2002 Porsche 911 Carrera

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2002 Porsche 911 Carrera

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2002 Porsche 911 Carrera 4

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2002 Porsche 911 Carrera 4S

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2002 Porsche 911 GT2

Coupe 996t 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2002 Porsche 911 Targa

Targa 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2002 Porsche 911 Turbo

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2003 Porsche 911 Carrera

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2003 Porsche 911 Carrera

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2003 Porsche 911 Carrera 4

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2003 Porsche 911 Carrera 4S

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2003 Porsche 911 GT2

Coupe 996t 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2003 Porsche 911 Turbo

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 Anniversary Edition

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 Carrera

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 Carrera

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 Carrera 4

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 Carrera 4S

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 Carrera 4S

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 GT2

Coupe 996t 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 GT3

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 Turbo

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche 911 Turbo

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Carrera

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Carrera

Convertible 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Carrera

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Carrera

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Carrera 4S

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Carrera 4S

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Carrera S

Convertible 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Carrera S

Coupe 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 GT2

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 GT3

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Turbo

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Turbo

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Turbo S

Convertible 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche 911 Turbo S

Coupe 996 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche 911 Carrera

Convertible 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche 911 Carrera

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche 911 Carrera 4

Convertible 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche 911 Carrera 4

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche 911 Carrera 4S

Convertible 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche 911 Carrera 4S

Coupe 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche 911 Carrera S

Convertible 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche 911 Carrera S

Coupe 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Carrera

Convertible 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Carrera

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Carrera 4

Convertible 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Carrera 4

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Carrera 4S

Convertible 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Carrera 4S

Coupe 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Carrera S

Convertible 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Carrera S

Coupe 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 GT3

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 GT3 RS

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Targa 4

Targa 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Targa 4S

Targa 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche 911 Turbo

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Carrera

Convertible 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Carrera

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Carrera 4

Convertible 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Carrera 4

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Carrera 4S

Convertible 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Carrera 4S

Coupe 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Carrera S

Convertible 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Carrera S

Coupe 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 GT2

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 GT3

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 GT3 RS

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Targa 4

Targa 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Targa 4S

Targa 997 3.8L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Turbo

Convertible 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche 911 Turbo

Coupe 997 3.6L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

Porsche Boxster

1997 Porsche Boxster Base

Convertible 986 2.5L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

1998 Porsche Boxster Base

Convertible 986 2.5L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

1999 Porsche Boxster Base

Convertible 986 2.5L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2000 Porsche Boxster Base

Convertible 986 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2000 Porsche Boxster S

Convertible 986 3.2L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2001 Porsche Boxster Base

Convertible 986 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2001 Porsche Boxster S

Convertible 986 3.2L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2002 Porsche Boxster Base

Convertible 986 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2002 Porsche Boxster S

Convertible 986 3.2L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2003 Porsche Boxster Base

Convertible 986 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2003 Porsche Boxster S

Convertible 986 3.2L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche Boxster Base

Convertible 986 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche Boxster S

Convertible 986 3.2L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2004 Porsche Boxster S Special Edition

Convertible 986 3.2L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche Boxster Base

Convertible 987 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2005 Porsche Boxster S

Convertible 987 3.2L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche Boxster Base

Convertible 987 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2006 Porsche Boxster S

Convertible 987 3.2L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche Boxster Base

Convertible 987 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche Boxster S

Convertible 987 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche Boxster Base

Convertible 987 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche Boxster Limited Edition

Convertible 987 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche Boxster RS 60 Spyder

Convertible 987 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche Boxster S

Convertible 987 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche Boxster S Limited Edition

Convertible 987 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

Porsche Cayman

2006 Porsche Cayman S

Hatchback 987 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche Cayman Base

Hatchback 987 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2007 Porsche Cayman S

Hatchback 987 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche Cayman Base

Hatchback 987 2.7L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

2008 Porsche Cayman S

Hatchback 987 3.4L H6

Quantity needed: 1

Fitment note: Power Steering Line Seal - Pressure Line to Rack

Manufacturer: Genuine Porsche

SKU: 99923054340-100

Price

MSRP: $24.55

Price: $25.12

Availability: In stock

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Porsche O-Ring Genuine Porsche 99923054340

Porsche O-Ring Genuine Porsche 99923054340

MSRP: $24.55

Price: $25.12

The Genuine Porsche O-Ring (part number 999-230-543-40 / 99923054340) is a factory-original seal designed for precision fitment in numerous Porsche 911, Boxster, and Cayman models. Engineered specifically as the power steering line seal at the pressure line to rack connection, this O-Ring helps ensure optimal performance and leak-free reliability in your steering system.

Key Features:

Genuine Porsche part for assured quality and performance
Designed for correct fitment and sealing on specified models
OE part number: 999-230-543-40 / 99923054340

Verified Fitment:

Select Porsche 911 models (chassis 996 and 997; years 1999–2008)
Select Porsche Boxster models (chassis 986 and 987; years 1997–2008)
Select Porsche Cayman models (chassis 987; years 2006–2008)

Consult the verified model list to confirm compatibility with your vehicle. Choose Genuine Porsche parts for confidence and longevity in critical systems.

Specifications

Product Type

Genuine

OE Part Number

999 230 543 40 / 99923054340

OEM

Genuine Dealer Product

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