Please wait… 
Please wait while we process your order,
do not press the back button… 
Design911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png +443456003478 https://www.design911.co.uk Facebook Instagram
Select your vehicle to check compatibility
99965900940/1
Product Information
Product Information
Cap For Oil Pressure Switch.
Protect the electrical connection of your Porsche oil pressure switch with this OE Match Cap for Oil Pressure Switch, manufactured as a direct replacement. Produced to OE-style specifications, this protective cap is designed to fit securely over the oil pressure switch terminal, shielding the electrical connection from moisture, dirt, oil contamination, and engine bay debris. By protecting the terminal from the elements, it helps ensure reliable signal transmission between the oil pressure switch and the vehicle's electrical system.

Fits:
  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 356 1950-55
  • Porsche 356A 1955-59
  • Porsche 356B 1959-63
  • Porsche 356C 1963-65
  • Porsche 914 (1970-1976)  

Diagram Ref No 72

With age and prolonged exposure to engine heat, oil vapours, and routine servicing, the original cap can become brittle, cracked, distorted, or may be lost altogether. An exposed electrical terminal is more susceptible to corrosion and contamination, which can result in poor electrical contact or intermittent oil pressure warning light operation. Replacing the protective cap restores the integrity of the connection, making this OE Match component ideal for Porsche maintenance, repairs, and restoration projects.  

What This Product Does:
  • Protects the oil pressure switch electrical terminal.
  • Helps prevent moisture, dirt, and oil contamination from reaching the connector.
  • Reduces the risk of corrosion at the electrical contact.
  • Supports reliable oil pressure signal transmission.
  • Replaces damaged, hardened, or missing protective caps.
  • Helps maintain the integrity of the engine's electrical system.
  • Provides an OE-style fit for straightforward installation.

Symptoms Of Wear Or Failure:
  • Missing oil pressure switch protective cap.
  • Cracked, split, or hardened cap material.
  • Corrosion on the oil pressure switch terminal.
  • Loose-fitting or damaged cap.
  • Dirt or moisture around the electrical connection.
  • Intermittent oil pressure warning light caused by poor electrical contact.
  • Damage identified during engine servicing or restoration.

Why Replacement Matters:

  • The oil pressure switch cap is a small but essential protective component that helps preserve the electrical connection between the oil pressure switch and the vehicle's wiring harness. Without adequate protection, moisture, dirt, and oil contamination can compromise the terminal, resulting in corrosion, unreliable electrical signals, and inaccurate oil pressure warning indications.
  • Replacing a worn or missing cap restores protection to the electrical connection, helping to maintain dependable oil pressure monitoring and preventing unnecessary electrical faults. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Cap for Oil Pressure Switch provides reliable fit, performance, and durability for Porsche maintenance, repairs, and restoration projects.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99965900940
91161357100
91161357101
99965900940

The product you are viewing cross references to these numbers