
The Story
This CRP Industries Crankshaft Main Bearing O-Ring is a direct-fit replacement for Porsche 911/930/964/993/996/997/Boxster applications listed in the fitment table below. It is used to seal the nose/main bearing area of the engine and help control oil leakage at the crankshaft support location. CRP Industries is a long-established supplier of OE-quality automotive replacement parts, including brands and product lines used across European vehicle applications. Known for dependable fitment and broad coverage in systems related to cooling, fuel, steering, suspension, and engine service, CRP Industries parts are selected for reliable performance and solid compatibility on Porsche service work.
Technical Details
- Manufacturer part number: 99970146740-EC
- Brand: CRP Industries
- Application: Crankshaft main nose bearing sealing O-ring
- Fitment note: Cross-referenced in some catalogs to later oil filler cap applications
Fitment & Compatibility
Use the fitment table below to confirm Porsche model, year range, and submodel details. This listing covers 911/930/964/993/996/997/Boxster applications from 1978–2005. When a seal or O-ring fits more than one engine family, compare the installed part number and location before ordering.
If you need help checking the application before ordering, PMB Performance has been working with Porsche parts for over 20 years and can help you sort out the details.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1978 | Porsche | 911 | ||
| 1979 | Porsche | 911 | ||
| 1980 | Porsche | 911 | ||
| 1981 | Porsche | 911 | ||
| 1982 | Porsche | 911 | ||
| 1983 | Porsche | 911 | ||
| 1984 | Porsche | 911 | ||
| 1985 | Porsche | 911 | ||
| 1986 | Porsche | 911 | ||
| 1987 | Porsche | 911 | ||
| 1988 | Porsche | 911 | ||
| 1989 | Porsche | 911 | ||
| 1990 | Porsche | 911 | ||
| 1991 | Porsche | 911 | ||
| 1992 | Porsche | 911 | ||
| 1993 | Porsche | 911 | ||
| 1994 | Porsche | 911 | ||
| 1995 | Porsche | 911 | ||
| 1996 | Porsche | 911 | ||
| 1997 | Porsche | 911 | ||
| 1998 | Porsche | 911 | ||
| 1999 | Porsche | 911 | ||
| 2000 | Porsche | 911 | ||
| 2001 | Porsche | 911 | ||
| 2002 | Porsche | 911 | ||
| 2003 | Porsche | 911 | ||
| 2004 | Porsche | 911 | ||
| 2005 | Porsche | 911 | Carrera | |
| 2005 | Porsche | 911 | Carrera 4S | |
| 2002 | Porsche | 911 | GT2 | |
| 2003 | Porsche | 911 | GT2 | |
| 2004 | Porsche | 911 | GT2 | |
| 2005 | Porsche | 911 | GT2 | |
| 2004 | Porsche | 911 | GT3 | |
| 2005 | Porsche | 911 | GT3 | |
| 2001 | Porsche | 911 | Turbo | |
| 2002 | Porsche | 911 | Turbo | |
| 2003 | Porsche | 911 | Turbo | |
| 2004 | Porsche | 911 | Turbo | |
| 2005 | Porsche | 911 | Turbo | |
| 2005 | Porsche | 911 | Turbo S | |
| 1978 | Porsche | 930 | ||
| 1979 | Porsche | 930 | ||
| 1997 | Porsche | Boxster | ||
| 1998 | Porsche | Boxster | ||
| 1999 | Porsche | Boxster | ||
| 2000 | Porsche | Boxster | ||
| 2001 | Porsche | Boxster | ||
| 2002 | Porsche | Boxster | ||
| 2003 | Porsche | Boxster | ||
| 2004 | Porsche | Boxster |
Description
This CRP Industries Crankshaft Main Bearing O-Ring is a direct-fit replacement for Porsche 911/930/964/993/996/997/Boxster applications listed in the fitment table below. It is used to seal the nose/main bearing area of the engine and help control oil leakage at the crankshaft support location. CRP Industries is a long-established supplier of OE-quality automotive replacement parts, including brands and product lines used across European vehicle applications. Known for dependable fitment and broad coverage in systems related to cooling, fuel, steering, suspension, and engine service, CRP Industries parts are selected for reliable performance and solid compatibility on Porsche service work.
Technical Details
- Manufacturer part number: 99970146740-EC
- Brand: CRP Industries
- Application: Crankshaft main nose bearing sealing O-ring
- Fitment note: Cross-referenced in some catalogs to later oil filler cap applications
Fitment & Compatibility
Use the fitment table below to confirm Porsche model, year range, and submodel details. This listing covers 911/930/964/993/996/997/Boxster applications from 1978–2005. When a seal or O-ring fits more than one engine family, compare the installed part number and location before ordering.
If you need help checking the application before ordering, PMB Performance has been working with Porsche parts for over 20 years and can help you sort out the details.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1978 | Porsche | 911 | ||
| 1979 | Porsche | 911 | ||
| 1980 | Porsche | 911 | ||
| 1981 | Porsche | 911 | ||
| 1982 | Porsche | 911 | ||
| 1983 | Porsche | 911 | ||
| 1984 | Porsche | 911 | ||
| 1985 | Porsche | 911 | ||
| 1986 | Porsche | 911 | ||
| 1987 | Porsche | 911 | ||
| 1988 | Porsche | 911 | ||
| 1989 | Porsche | 911 | ||
| 1990 | Porsche | 911 | ||
| 1991 | Porsche | 911 | ||
| 1992 | Porsche | 911 | ||
| 1993 | Porsche | 911 | ||
| 1994 | Porsche | 911 | ||
| 1995 | Porsche | 911 | ||
| 1996 | Porsche | 911 | ||
| 1997 | Porsche | 911 | ||
| 1998 | Porsche | 911 | ||
| 1999 | Porsche | 911 | ||
| 2000 | Porsche | 911 | ||
| 2001 | Porsche | 911 | ||
| 2002 | Porsche | 911 | ||
| 2003 | Porsche | 911 | ||
| 2004 | Porsche | 911 | ||
| 2005 | Porsche | 911 | Carrera | |
| 2005 | Porsche | 911 | Carrera 4S | |
| 2002 | Porsche | 911 | GT2 | |
| 2003 | Porsche | 911 | GT2 | |
| 2004 | Porsche | 911 | GT2 | |
| 2005 | Porsche | 911 | GT2 | |
| 2004 | Porsche | 911 | GT3 | |
| 2005 | Porsche | 911 | GT3 | |
| 2001 | Porsche | 911 | Turbo | |
| 2002 | Porsche | 911 | Turbo | |
| 2003 | Porsche | 911 | Turbo | |
| 2004 | Porsche | 911 | Turbo | |
| 2005 | Porsche | 911 | Turbo | |
| 2005 | Porsche | 911 | Turbo S | |
| 1978 | Porsche | 930 | ||
| 1979 | Porsche | 930 | ||
| 1997 | Porsche | Boxster | ||
| 1998 | Porsche | Boxster | ||
| 1999 | Porsche | Boxster | ||
| 2000 | Porsche | Boxster | ||
| 2001 | Porsche | Boxster | ||
| 2002 | Porsche | Boxster | ||
| 2003 | Porsche | Boxster | ||
| 2004 | Porsche | Boxster |





















