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Fuel pump relay. Porsche 986 Boxster / 996 / 996 Turbo 99661510100 - 99661510100
99661510100/1
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche Carrera GT 2003-06
Information
Fuel pump relay.
The fuel pump relay is a precision replacement relay for the fuel-pump control circuit in the Porsche 986 Boxster and 996 911 (including Turbo and early Carrera GT) models. This relay controls the activation of the in-tank fuel pump, providing the necessary current to ensure correct fuel delivery under demand - making it vital for engine start-up, steady fuel pressure and safe operation.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 996 C2 / C4 / C4S 1998 - 2005
Porsche 996 Turbo 2001 - 2005
Porsche 996 GT3
Porsche Carrera GT 2004 - 2006
* Please check and match the part number of your relay in your car before ordering.
• Position: Mounted in the front luggage compartment fuse/relay panel or subsystems - controls power feed to the fuel pump relay circuit.
• Function: When the ignition is turned on or engine is running, the signal from ECU or shift lever energises this relay, sending current to the fuel pump so fuel pressure builds before engine cranking - crucial for proper fuel system operation.
• Applications: Ideal when the original relay has failed, is intermittent, shows corrosion on contacts, causes fuel-pump drop-outs, engine stumbling, or fails the self-check.
The fuel pump relay is a critical yet often overlooked part of the fuel delivery system.
A failing relay may manifest as:
• Engine cranks but won’t start (fuel pump never powers)
• Fuel pump prime is silent when ignition is turned on
• Engine stalls at random after start due to loss of pump voltage
• Intermittent “no-fuel pressure” faults or ECU logged errors
Replacing the relay with a correct unit ensures the fuel pump receives the proper current, realises full system pressure, and avoids mis-diagnosis of fuel pump or ECU faults.
When to replace:
• Original relay is over 10 years old, exposed to heat or aftermarket modifications
• You’ve installed a new fuel pump but issue persists (relay may be the culprit)
• You’re diagnosing no-start or stall symptoms that point to fuel pressure drop-out
• You’re restoring or prepping your vehicle and want to replace all wear-prone electrical relays
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661510100
The product you are viewing cross references to these numbers
The fuel pump relay is a precision replacement relay for the fuel-pump control circuit in the Porsche 986 Boxster and 996 911 (including Turbo and early Carrera GT) models. This relay controls the activation of the in-tank fuel pump, providing the necessary current to ensure correct fuel delivery under demand - making it vital for engine start-up, steady fuel pressure and safe operation.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 996 C2 / C4 / C4S 1998 - 2005
Porsche 996 Turbo 2001 - 2005
Porsche 996 GT3
Porsche Carrera GT 2004 - 2006
* Please check and match the part number of your relay in your car before ordering.
• Position: Mounted in the front luggage compartment fuse/relay panel or subsystems - controls power feed to the fuel pump relay circuit.
• Function: When the ignition is turned on or engine is running, the signal from ECU or shift lever energises this relay, sending current to the fuel pump so fuel pressure builds before engine cranking - crucial for proper fuel system operation.
• Applications: Ideal when the original relay has failed, is intermittent, shows corrosion on contacts, causes fuel-pump drop-outs, engine stumbling, or fails the self-check.
The fuel pump relay is a critical yet often overlooked part of the fuel delivery system.
A failing relay may manifest as:
• Engine cranks but won’t start (fuel pump never powers)
• Fuel pump prime is silent when ignition is turned on
• Engine stalls at random after start due to loss of pump voltage
• Intermittent “no-fuel pressure” faults or ECU logged errors
Replacing the relay with a correct unit ensures the fuel pump receives the proper current, realises full system pressure, and avoids mis-diagnosis of fuel pump or ECU faults.
When to replace:
• Original relay is over 10 years old, exposed to heat or aftermarket modifications
• You’ve installed a new fuel pump but issue persists (relay may be the culprit)
• You’re diagnosing no-start or stall symptoms that point to fuel pressure drop-out
• You’re restoring or prepping your vehicle and want to replace all wear-prone electrical relays
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661510100
99661510100
The product you are viewing cross references to these numbers
£15.31
Now £13.78
In stock
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Vehicle Group
- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD 2017-20
- Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD Executive 2017-20
- Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera Turbo S E-Hybrid 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S E-Hybrid Sport Turismo 4.0L V8 2021-23
- Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
Information
In-tank fuel pump.
Fits:
Porsche 971.1 Panamera 4 E-Hybrid MKI 2017>>2021
Porsche 971.1 Panamera Turbo S E-Hybrid MKI 2017>>2021
Porsche 971.2 Panamera 4 S E-Hybrid MKII 2021>>2024
Porsche 971.2 Panamera Turbo S E-Hybrid MKII 2021>>2024
Porsche 976 Panamera Turbo E-Hybrid 2024>>
Diagram Ref No 1
NOTE: This Fuel Pump Is Only For Hybrid Models (PR 0K3). For Non-Hybrid Petrol Or Diesel Models (PR 0K0), A Different Fuel Pump Is Required.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAE919088B
The product you are viewing cross references to these numbers
Fits:
Porsche 971.1 Panamera 4 E-Hybrid MKI 2017>>2021
Porsche 971.1 Panamera Turbo S E-Hybrid MKI 2017>>2021
Porsche 971.2 Panamera 4 S E-Hybrid MKII 2021>>2024
Porsche 971.2 Panamera Turbo S E-Hybrid MKII 2021>>2024
Porsche 976 Panamera Turbo E-Hybrid 2024>>
Diagram Ref No 1
NOTE: This Fuel Pump Is Only For Hybrid Models (PR 0K3). For Non-Hybrid Petrol Or Diesel Models (PR 0K0), A Different Fuel Pump Is Required.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAE919088B
9A791908820
9A791908821
9A7919088B
PAE919088B
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£699.33
Now £629.40
In stock
Vehicle Group
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 9YA Cayenne Turbo S E-Hybrid V8 4.0L (550Hp) 2019-23
- Porsche 9YA Cayenne Coupe Turbo S E-Hybrid V8 4.0L (550Hp) 2020-23
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
- Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD 2017-20
- Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD Executive 2017-20
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
Information
Fuel pump gasket.
Fits:
Porsche 958 Cayenne Hybrid (Option code: 2G1 / 2G3 / 2G4 / 2G7 / 2G8) 2011-18
Porsche 9YA Cayenne 2018>> (Option code: 2G1 / 2G4)
Porsche 9YA Cayenne HYBRID 2018>> (Option code: 2G1 / 2G4)
Porsche 95B Macan 2014-18 (Option code: 2G4)
Porsche 95B.2 Macan 2019>> (Option code: 2G4)
Porsche 971.1 Panamera 2017-21 (Option code: 2G1 / 2G4)
Porsche 971.1 Panamera HYBRID 2017-21 (Option code: 2G1 / 2G4)
Porsche 971.2 Panamera 2021>> (Option code: 2G1 / 2G4)
Porsche 971.2 Panamera HYBRID 2021>> (Option code: 2G1 / 2G4)
Option codes:
(2G1) - Insert for fuelling with unleaded petrol
(2G3) - Without insert for unleaded petrol
(2G4) - Insert for fuelling with unleaded petrol (CARB Diagnosis)
(2G7) - Insert for unleaded fuelling in bad fuel region
(2G8) - Insert for unleaded fuelling - MAPPS
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A791913320
The product you are viewing cross references to these numbers
Fits:
Porsche 958 Cayenne Hybrid (Option code: 2G1 / 2G3 / 2G4 / 2G7 / 2G8) 2011-18
Porsche 9YA Cayenne 2018>> (Option code: 2G1 / 2G4)
Porsche 9YA Cayenne HYBRID 2018>> (Option code: 2G1 / 2G4)
Porsche 95B Macan 2014-18 (Option code: 2G4)
Porsche 95B.2 Macan 2019>> (Option code: 2G4)
Porsche 971.1 Panamera 2017-21 (Option code: 2G1 / 2G4)
Porsche 971.1 Panamera HYBRID 2017-21 (Option code: 2G1 / 2G4)
Porsche 971.2 Panamera 2021>> (Option code: 2G1 / 2G4)
Porsche 971.2 Panamera HYBRID 2021>> (Option code: 2G1 / 2G4)
Option codes:
(2G1) - Insert for fuelling with unleaded petrol
(2G3) - Without insert for unleaded petrol
(2G4) - Insert for fuelling with unleaded petrol (CARB Diagnosis)
(2G7) - Insert for unleaded fuelling in bad fuel region
(2G8) - Insert for unleaded fuelling - MAPPS
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
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9A791913320
9A791913320
1J0919133B
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£22.51
Now £20.26
Orderable
Vehicle Group
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
- Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD 2017-20
- Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD Executive 2017-20
Information
Fuel pump flange.
Fits:
Porsche 971.1 Panamera 2017-21 (Option code: 9M0 / 2G1 / 2G4)
Porsche 971.1 Panamera HYBRID 2017-21 (Option code: 2G1 / 2G4)
Porsche 971.2 Panamera HYBRID 2021>> (Option code: 9M0 / 2G1 / 2G4)
Porsche 971.2 Panamera HYBRID 2021>> (Option code: 2G1 / 2G4)
Codes:
(9M0) - Without auxiliary heater/parking heater
(2G1) - Insert for fuelling with unleaded petrol
(2G4) - Insert for fuelling with unleaded petrol (CARB Diagnosis)
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A791967920
The product you are viewing cross references to these numbers
Fits:
Porsche 971.1 Panamera 2017-21 (Option code: 9M0 / 2G1 / 2G4)
Porsche 971.1 Panamera HYBRID 2017-21 (Option code: 2G1 / 2G4)
Porsche 971.2 Panamera HYBRID 2021>> (Option code: 9M0 / 2G1 / 2G4)
Porsche 971.2 Panamera HYBRID 2021>> (Option code: 2G1 / 2G4)
Codes:
(9M0) - Without auxiliary heater/parking heater
(2G1) - Insert for fuelling with unleaded petrol
(2G4) - Insert for fuelling with unleaded petrol (CARB Diagnosis)
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
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9A791967920
9A791967920
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£90.46
Now £81.41
Orderable