Oil Filter Adapter/Oil Pressure Switch - New Design
FILE IN SECTION: 6 - EngineBULLETIN NO.: 57-60-01
DATE: May, 1995
SUBJECT:
New Engine Oil Filter Adapter and Oil Pressure Switch
MODELS:
1995 Cadillac Concours, Eldorado, Seville
with 4.6L Engine (VINs 9, Y - RPOs L37, LD8)
1995 Oldsmobile Aurora
with 4.0L Engine (VIN C - RPO L47)
New oil filter adapters and oil pressure switches went into production on 4.0L and 4.6L engines January 18, 1995. Features of this new adapter include an all aluminum body, steel plug and larger threads to mount the oil pressure switch.
The new oil filter adapter may be used on all model year 4.0L and 4.6L engines. Whenever installing these new oil filter adapters on any 4.0L or 4.6L engine built prior to the above mentioned date, adhere to the following:
1. The attaching threads for the oil pressure switch have changed from a 1/4 inch to 3/8 inch size, therefore, when a new oil filter adapter is used, a new oil pressure switch with the 3/8 threads must be installed.
2. The oil pressure switches must not be used interchangeably because the G car switch is a combination sensor for instrument panel display information and PCM signal input.
3. The part number with an ASTERISK indicated must be used whenever an oil filter adapter replacement is necessary on a vehicle without an external oil cooler package. The oil filter adapters removed from these vehicles are equipped with a "U" shaped tube. This tube may be discarded since the replacement adapter is equipped with a "cast over" port and plug which must be installed before installing on the engine.
PARTS INFORMATION
Refer to the following part numbers when ordering the new oil filter adapter and oil pressure switches.
Description Part Number
Oil Filter Adapter:
4.6L 12555005
4.0L 12555005
4.6L non external cooler *12555007
Oil Pressure Switch G Car 3547417
Oil Pressure Switch E/K/K Special 3546924
Parts are currently available from GMSPO.
WARRANTY INFORMATION
For vehicles repaired under warranty use:
Labor
Operation Labor Time
J0960 0.6 hr (Whenever replacement of the oil filter adapter is necessary.)