Porsche Reference Mark Sensor - 993/C2/C4 90-98 - 01-05 996-606-105-00 923-602-921-00 They are not pre-drilled and

They are not pre-drilled and they can be installed using rivets (part # 999

911 non-S (1965-1969) and 912 (1965-1969) models

Porsche Clutch release bearing guide tube for C2/C4 (1989-1994)

Porsche Connecting rod #11 fitting weights of 687-696 grams

Porsche Coolant thermostat for 924 (1987-1988)

Porsche Reference Mark Sensor - 993/C2/C4 90-98 - 01-05 996-606-105-00 923-602-921-00 They are not pre-drilled andPorsche Reference mark sensor for 993 (1995 1998) and C2 C4 models (1994 1998). You will also need (1) 999. 652. 916. 40 (3) 999. 652. 871. 22 (3) 999. 704. 161. 40. Please note t this sensor will not fit models with the original rectangular plug. This part number has been SUPERSEDED FROM 911. 606. 217. 03.