Oil Pressure Switch - Revised Design
85saab03FILE IN S.I. Man. VOL. I
SEC. A-2 PG. 108
Service Information
SUBJECT: NEW OIL PRESSURE SWITCH ISSUE: 11/85-806
APPLICATION: All 900 Models, M81-
Beginning with M86 900 and 900S production a new oil pressure switch was introduced. The new switch provides a better seal to the oil filter housing and can be easily removed and replaced due to the flats built into the switch to accept a wrench.
The new oil pressure switch has metric threads (M14 x 1.5 mm) and an integrated sealing washer. The oil filter housing has been changed to accept the new switch.
To mount a new switch (P/N 75-22-402) to an earlier car (M81-85), it is necessary to first thread an adapter (P/N 75-64-248) into the oil filter housing and then mount the new switch. The new style switch will be installed into 900 Turbo production later in the year. Turbos will continue to use the older type switch with its tapered threads and its matching housing until then.
New Oil Pressure Switch P/N 75-22-402
Adapter (earlier cars M81-85) P/N 75-64-248