Oil pressure sensor / switch. Porsche 996 Turbo / 996 GT3  ❭  99660620303

This OE Match oil pressure sensor / switch is mounts at the oil filter housing and replaces the earlier Porsche references 99660620300 and 99660620301.

Fits:
Porsche 996 Turbo 2001 – 2005
Porsche 996 GT3 / GT3 RS 2001 – 2005

Diagram ref no 45

What This Product Does

The sender monitors pressure within the engine lubrication system and provides the electrical signal used by the vehicle's oil-pressure display and warning system. Correct sender operation allows the driver to identify a potential pressure problem without misleading or intermittent readings from a defective component.

Functions

• Monitors engine oil pressure
• Provides an electrical signal for the dashboard display
• Supports operation of the oil-pressure warning system
• Replaces a leaking, damaged or unreliable sender

Technical Details

• Brand: OE Match
• Mounting position: oil filter housing
• Reference number: 99660620302
• Supersedes: 99660620300 and 99660620301
• Parts diagram reference: 45

Symptoms of Fault

• Oil-pressure gauge readings fluctuate unexpectedly
• Gauge briefly falls to zero and then recovers
• Oil warning light flickers despite the correct oil level
• Pressure reading remains unusually high or low
• Intermittent readings occur as the engine warms up
• Oil seepage is visible around the sender body or connection

Why Replacement Matters

A faulty sender can imitate a serious lubrication-system problem or prevent the dashboard from displaying reliable information. Actual low oil pressure can cause significant engine damage, so warning lights or abnormal readings should be treated seriously. Check the oil level and condition first, then verify the engine's true oil pressure with suitable test equipment before assuming that the sender is the only fault.

OE Reference

• 99660620302
• 99660620300 
• 99660620301 

FAQs

• Can a defective sender cause a false oil-pressure warning?
  Yes. Electrical wear, internal failure or a poor connection can produce intermittent or inaccurate readings, although genuine pressure loss must be ruled out first.
• How should an abnormal reading be checked?
  Confirm the oil level and inspect for leaks. A mechanical pressure-gauge test can then be used to establish the engine's actual oil pressure.
• Where is this sender installed?
  It is fitted at the oil filter housing on the listed 996 Turbo and GT3 applications.
• Does it replace earlier Porsche part numbers?
  Yes. Reference 99660620302 supersedes 99660620300 and 99660620301.