Part HP-4001 Product Specifications
Product Style: Oil Filters
Anti Drain Back Valve: Yes
Bypass Valve: Yes
Filter Material: High Flow Premium Media
Gasket Material: Nitrile Rubber
Height: 5.094 in (129 mm)
Outside Diameter: 3 in (76 mm)
PSI Relief Valve: 11-17
Removal Nut: Yes
Style: Canister
Thread Specification: M20 x 1.5
Weight: 1.2 lb (0.5 kg)

Manufacturer Part Number
AC Delco PF2055
Champ Labs. PH2855
Mann-Hummel W71922
Mann-Hummel W724
Mobil One M1401
Porsche 25014566
Purolator L27642
Purolator L30165
WIX 51287

 K&N HP-4001 fits the following:
1995 PORSCHE 968 3.0L L4 F/I - All  
1994 PORSCHE 968 3.0L L4 F/I - All  
1994 PORSCHE 911 3.6L H6 F/I - Turbo  
1993 PORSCHE 968 3.0L L4 F/I - All  
1992 PORSCHE 968 3.0L L4 F/I - All  
1992 PORSCHE 911 3.3L H6 F/I - All  
1991 PORSCHE 944 3.0L L4 F/I - All  
1991 PORSCHE 911 3.3L H6 F/I - All  
1990 PORSCHE 944 3.0L L4 F/I - All  
1989 PORSCHE 944 3.0L L4 F/I - All  
1989 PORSCHE 944 2.7L L4 F/I - All  
1989 PORSCHE 944 2.5L L4 F/I - All  
1988 PORSCHE 944 S 2.5L L4 F/I - All  
1988 PORSCHE 944 2.5L L4 F/I - All  
1988 PORSCHE 924 2.5L L4 F/I - All  
1987 PORSCHE 944 2.5L L4 F/I - All  
1987 PORSCHE 924 2.5L L4 F/I - All  
1986 PORSCHE 944 2.5L L4 F/I - All  
1985 PORSCHE 944 2.5L L4 F/I - All  
1984 PORSCHE 944 2.5L L4 F/I - All  
1983 PORSCHE 944 2.5L L4 F/I - All