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oil pressure switch Genuine Porsche part 99660620303

Code: 99660620303

Genuine Porsche part

oil pressure switch

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

4 4 4 4

Oil pressure sensor / switch. Porsche 996 Carrera 3.4L / 3.6L & 997 Carrera 3.6L / 3.8L

99660620303/1

Product Information

Engine oil pressure sender / switch
Mounted on the cylinder head, this component monitors pressure within the engine lubrication system and supplies the corresponding signal for the dashboard oil-pressure display and warning system.

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1998 - 2005
Porsche 997 Carrera 3.6L / 3.8L 2005 - 2008

Diagram Ref No 32. (Cylinder Head)

Functions

Monitors engine oil pressure
Provides information to the dashboard pressure gauge
Supports the low oil-pressure warning system
Helps identify potentially unsafe lubrication conditions

Technical Details

Brand: OE Match
Porsche cross-reference: 99660620303
Installation position: cylinder head
Diagram location: cylinder head, reference number 32

Symptoms of Fault

Oil-pressure gauge readings that fluctuate unexpectedly
Gauge momentarily dropping to zero before recovering
Warning light flickering at idle despite the correct oil level
Pressure display remaining unusually high or low
Intermittent readings associated with heat or vibration
Oil seepage around the sender body or connection

Why Replacement Matters

A defective sender may produce inaccurate readings or false dashboard warnings. However, low oil pressure can also indicate a genuine lubrication fault, so the engine oil level and actual pressure should be checked before the sender is assumed to be the cause. A mechanical pressure test is the preferred method of confirming the engine's true oil pressure.

FAQs

Does a flickering oil warning always mean the sender has failed?
No. Treat any oil-pressure warning as genuine until the oil level and actual pressure have been checked.
How can the sender be diagnosed?
Inspect the electrical connection and wiring, then compare the displayed reading with a mechanical oil-pressure gauge.
Should a leaking sender be replaced?
Yes. Seepage from the sender body or seal can worsen and allow oil to contaminate nearby components.

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

99660620303

99660620302

99660620300

99660620301

99660620303

The product you are viewing cross references to these numbers

4 4 4 4

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

99660620303/1::1

Product Information

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.

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

99660620303

99660620302

99660620300

99660620301

The product you are viewing cross references to these numbers

Fuel pressure sensor. Porsche 996 Turbo

99660620500/2

Product Information

Fuel pressure sensor
OE Match fuel pressure sensor for Porsche 996 Turbo models from 2001 to 2005. This replacement sensor helps monitor fuel pressure within the fuel injection system, supporting accurate engine management, reliable fuel delivery, and correct running performance.

Fits:
Porsche 996 Turbo 2001 - 2005 *M660
* option code: 660 - obd 2

Diagram ref no 9

The fuel pressure sensor measures fuel pressure and sends information to the engine control system. Accurate fuel pressure data helps the ECU manage fuelling correctly, supporting smooth running, clean throttle response, reliable boost performance, and efficient combustion.

Functions
•  Replaces the fuel pressure sensor
•  Monitors fuel pressure within the injection system
•  Sends fuel pressure data to the engine control unit
•  Supports correct fuelling and engine management
•  Helps maintain smooth idle and throttle response
•  Suitable for fuel system fault diagnosis and repair
•  OE Match replacement for Porsche 996 Turbo fuel injection service

Why Replace This Part?
Fuel pressure sensors can fail due to age, heat, vibration, fuel contamination, electrical faults, or internal sensor wear. A faulty sensor may cause hard starting, rough idle, hesitation, poor acceleration, uneven boost response, warning lights, fault codes, or incorrect fuel pressure readings. Replacing the sensor helps restore accurate fuel pressure monitoring and reliable engine performance.

When to Replace This Part
•   Fuel pressure sensor fault code is present
•   Engine warning light is illuminated
•   Starting is difficult or inconsistent
•   Idle is rough or unstable
•   Acceleration hesitation or poor throttle response is present
•   Fuel pressure readings are incorrect or intermittent
•   Fuel system service or diagnostic repair is being carried out.

Where it fits on the car
This sensor fits within the engine fuel injection / fuel pressure monitoring system on Porsche 996 Turbo models.

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

99660620500

99660620500

0261230015

The product you are viewing cross references to these numbers

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oil pressure switch Genuine Porsche part 99660620303