
The Story
This CRP Industries Engine Case Stud and Bolt O-Ring is a direct-fit replacement for Porsche 911/930/964/993/996/997 applications listed in the fitment table below. It is used to seal case studs and through-bolts in the crankcase to help control oil seepage at the case hardware. 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: 99970100640G-EC
- Brand: CRP Industries
- Application: Crankcase studs and through-bolts
- Fitment note: Common engine reseal service item
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 applications from 1965–2005. 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 |
|---|---|---|---|---|
| 1965 | Porsche | 911 | ||
| 1966 | Porsche | 911 | ||
| 1967 | Porsche | 911 | ||
| 1968 | Porsche | 911 | ||
| 1969 | Porsche | 911 | ||
| 1970 | Porsche | 911 | ||
| 1971 | Porsche | 911 | ||
| 1972 | Porsche | 911 | ||
| 1973 | Porsche | 911 | ||
| 1974 | Porsche | 911 | ||
| 1975 | Porsche | 911 | ||
| 1976 | Porsche | 911 | ||
| 1977 | Porsche | 911 | ||
| 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 | ||
| 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 |
Description
This CRP Industries Engine Case Stud and Bolt O-Ring is a direct-fit replacement for Porsche 911/930/964/993/996/997 applications listed in the fitment table below. It is used to seal case studs and through-bolts in the crankcase to help control oil seepage at the case hardware. 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: 99970100640G-EC
- Brand: CRP Industries
- Application: Crankcase studs and through-bolts
- Fitment note: Common engine reseal service item
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 applications from 1965–2005. 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 |
|---|---|---|---|---|
| 1965 | Porsche | 911 | ||
| 1966 | Porsche | 911 | ||
| 1967 | Porsche | 911 | ||
| 1968 | Porsche | 911 | ||
| 1969 | Porsche | 911 | ||
| 1970 | Porsche | 911 | ||
| 1971 | Porsche | 911 | ||
| 1972 | Porsche | 911 | ||
| 1973 | Porsche | 911 | ||
| 1974 | Porsche | 911 | ||
| 1975 | Porsche | 911 | ||
| 1976 | Porsche | 911 | ||
| 1977 | Porsche | 911 | ||
| 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 | ||
| 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 |





















