944 S L4-2479cc 2.5L DOHC (1987)
From start of production 1983, 944 cars came equipped with a spring and piston oil pressure relief valve (figure 1). This was used in all 944 and 944
Turbo up to the end of 1986 production. Also early 1987 924S used this system. In 1987 production of 944, 944S and 944 Turbo, a new type one-piece
oil pressure relief valve PN 944 107 035 01 was installed (figure 2). Later production 1987 924S also received this valve. At around the same time a new
type one-piece pressure relief valve, PN 944 107 035 11 was introduced as a retrofit to repair earlier engines from 1983 to 1986 along with the early
924S. With this, the old type spring and piston was discontinued as a spare part.
1987 engines from production date July 1986, received pressure relief valve PN 944 107 035 01. This valve was not anticorrosion treated. The engine
numbers are as follows:
43 H 01920
924S/944
Manual transmission
43 H 60385
924S/944
Automatic transmission
42 H 00140
944S
45 H 00086
944 Turbo
1987 engines from production date October 1986, the oil pressure relief valve PN 944 107 035 01 received an anti-corrosion treatment. Installation in
production began with the following engine numbers:
43 H 05373
924S/944
Standard transmission
43 H 61268
924S/944
Automatic transmission
42 H 02847
944S
45 H 01256
944 Turbo
When repairs are made to engines which fall between the above mentioned engine numbers, the oil pressure relief valve must be replaced with pressure
relief valve PN 944 107 035 01.
Since these new type valves are similar in design, the following information will aid in determining the correct oil pressure relief valve application.
Valve Application
YEAR
MODEL(S)
QUALIFIER
VALVE TYPE
1987
924S
Up to engine #
Fig. A
43 H 01919-std. trans.
43 H 60384- auto. trans.
1987
924S
From engine #
Fig. B
43 H 01920-std. trans.
43 H 60385-auto. trans.
1983-86
944,
All
Fig. A
944 Turbo
1987
944, 944S
All
Fig. B
944 Turbo
Part Number Information