Thanks to construction, K&N oil filters have gained recognition of the most demanding drivers and are one of the few used in competitive motorsport. These filters are distinguished by a filtration layer that does not limit oil flow.
The advantages of filters are:
- Strengthened construction of external walls reducing the risk of mechanical damage
- Head for easy filter operation using standard flat keys
- Hole in the head, enabling the cotter pin to be required in many motor sport disciplines.
An additional advantage is the internal valve closing the flow after a pressure drop, which protects the engine against dry starting.
The K&N sports oil filters are an ideal solution for all users of cars that care about the efficiency and safety of their engine and are looking for the highest quality products.
Specification:
- Anti Drain Back Valve: Yes
- Bypass valve: Yes
- Seal material: Nitrile
- Height: 129 mm
- Outer diameter: 76 mm
- Thread: M20 x 1.5
Filter HP-4001 is dedicated for listed below vehicles:
| Year from | Year to | Make | Model |
|
| 1991 | 1992 | Porsche | 911 3.3L H6 Fuel Injection - All Models |
| 1994 | 1994 | Porsche | 911 3.6L H6 Fuel Injection - Turbo |
| 1987 | 1988 | Porsche | 924 2.5L L4 Fuel Injection - All Models |
| 1983 | 1989 | Porsche | 944 2.5L L4 Fuel Injection - All Models |
| 1989 | 1989 | Porsche | 944 2.7L L4 Fuel Injection - All Models |
| 1989 | 1991 | Porsche | 944 3.0L L4 Fuel Injection - All Models |
| 1988 | 1988 | Porsche | 944 S 2.5L L4 Fuel Injection - All Models |
| 1992 | 1995 | Porsche | 968 3.0L L4 Fuel Injection - All Models |
Cross Reference:
- AC Delco PF2055
- Champ Labs. PH2855
- Fram PH6941
- Mann-Hummel W71922
- Mann-Hummel W724
- Mobil One M1401
- Porsche 25014566
- Purolator L27642
- Purolator L30165
- WIX 51287
