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An OE Match high-pressure fuel pump designed for direct injection Porsche engines, responsible for delivering fuel at precise high pressure to the injectors for optimal combustion.
Fits:
Porsche 718 Boxster 2.0ltr / 2.5ltr - 2017 Onwards
Porsche 718 Cayman 2.0ltr / 2.5ltr - 2017 Onwards
Porsche 991.2 - 2017 to 2019
Diagram ref no 18
This pump is mechanically driven and increases fuel pressure from the low-pressure system to the high pressures required for direct injection. This ensures fine fuel atomisation within the combustion chamber, improving efficiency, power delivery, and emissions control.
This OE Match unit is a direct replacement for original parts and cross-references multiple part numbers including 9A211031500, 9A211031501, and 9A2110315CX, ensuring correct compatibility and fitment across applicable Porsche models.
This high-pressure fuel pump delivers fuel to the injectors at the required pressure for direct injection, ensuring efficient combustion, responsive performance, and reliable engine operation.
Function
• Generates high fuel pressure for direct injection systems
• Ensures precise fuel delivery to injectors
• Supports efficient combustion and engine performance
• Maintains consistent pressure across all driving conditions
• Operates reliably under high temperature and load environments
A failing high-pressure fuel pump can lead to reduced fuel pressure, resulting in poor engine performance, hesitation, or starting issues. In direct injection engines, maintaining precise pressure is critical - any inconsistency can negatively impact power output, efficiency, and drivability. Replacing the pump restores proper fuel delivery, ensures reliable operation, and helps protect other fuel system components.
When to replace
• Engine cranks but struggles to start
• Noticeable loss of power or hesitation
• Engine misfires or inconsistent performance
• Fault codes related to fuel pressure system
• During fuel system servicing or engine rebuild
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9A211031502
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Fits:
Porsche 971.1 Panamera 4 E-Hybrid MKI 2017>>2021
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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.
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PAE919088B
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Fits:
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Porsche 971-2 Panamera Turbo S E-Hybrid 2021-24
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Diagram ref. 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
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High Pressure
Fuel Pump Tappet
Sold each - 2 required per car
The high pressure fuel pump tappet is a
precision-engineered component used in the direct-injection fuel system of Porsche
976 Panamera 4.0-litre models and 9YA.2 Cayenne 4.0-litre models.
Positioned between the camshaft and the high-pressure fuel pump, this tappet
transfers camshaft motion to drive the pump and generate the fuel pressure
required for efficient combustion.
Fits:
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Diagram ref no 13
In high-output Porsche V8 engines, accurate fuel pressure delivery is essential for performance, emissions control and long-term engine reliability—making this tappet a critical service part.
What Does a High Pressure Fuel Pump Tappet Do?
The tappet converts the rotating motion of the camshaft into
linear movement that actuates the high-pressure fuel pump. This process allows
the fuel system to:
Maintain
precise high fuel pressure
- Support direct fuel injection under load
- Ensure stable engine performance across the rev range
- Optimise combustion efficiency and emissions
Without a properly functioning tappet, the fuel pump cannot operate correctly, leading to drivability and performance issues.
Why Do High Pressure Fuel Pump Tappets Fail?
Due to their location and function, fuel pump tappets are
exposed to continuous mechanical contact, high loads and insufficient
lubrication risk. Common causes of failure include:
- Surface wear from camshaft contact
- Breakdown of protective coatings
- Oil contamination or reduced oil flow
- Extended service intervals
Typical symptoms of tappet wear or failure include:
- Loss of engine performance
- Fuel pressure fault codes
- Rough running or hesitation
- Increased wear to the camshaft or fuel pump
Why Replace the Fuel Pump Tappet?
Replacing a worn tappet helps:
- Restore correct fuel pressure delivery
- Protect the camshaft and fuel pump from damage
- Maintain smooth, consistent engine performance
- Prevent costly fuel system or valvetrain repairs
Early replacement is particularly important on high-performance 4.0-litre Porsche engines where component wear can escalate quickly if ignored.6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAC109311
The product you are viewing cross references to these numbers
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High Pressure
Fuel Pump Tappet
Sold each - 2 required per car
The high pressure fuel pump tappet is a
precision-engineered component used in the direct-injection fuel system of Porsche
976 Panamera 4.0-litre models and 9YA.2 Cayenne 4.0-litre models.
Positioned between the camshaft and the high-pressure fuel pump, this tappet
transfers camshaft motion to drive the pump and generate the fuel pressure
required for efficient combustion.
Fits:
- Porsche 9YA.2 Cayenne S Coupe V8 4.0L 474Hp 2023>>
- Porsche 9YA.2 Cayenne Turbo E-Hybrid V8 4.0L 739Hp 2023>>
- Porsche 9YA.2 Cayenne Turbo E-Hybrid Coupe V8 4.0L 739Hp 2023>>
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Diagram ref no 13
In high-output Porsche V8 engines, accurate fuel pressure delivery is essential for performance, emissions control and long-term engine reliability—making this tappet a critical service part.
What Does a High Pressure Fuel Pump Tappet Do?
The tappet converts the rotating motion of the camshaft into
linear movement that actuates the high-pressure fuel pump. This process allows
the fuel system to:
Maintain
precise high fuel pressure
- Support direct fuel injection under load
- Ensure stable engine performance across the rev range
- Optimise combustion efficiency and emissions
Without a properly functioning tappet, the fuel pump cannot operate correctly, leading to drivability and performance issues.
Why Do High Pressure Fuel Pump Tappets Fail?
Due to their location and function, fuel pump tappets are
exposed to continuous mechanical contact, high loads and insufficient
lubrication risk. Common causes of failure include:
- Surface wear from camshaft contact
- Breakdown of protective coatings
- Oil contamination or reduced oil flow
- Extended service intervals
Typical symptoms of tappet wear or failure include:
- Loss of engine performance
- Fuel pressure fault codes
- Rough running or hesitation
- Increased wear to the camshaft or fuel pump
Why Replace the Fuel Pump Tappet?
Replacing a worn tappet helps:
- Restore correct fuel pressure delivery
- Protect the camshaft and fuel pump from damage
- Maintain smooth, consistent engine performance
- Prevent costly fuel system or valvetrain repairs
Early replacement is particularly important on high-performance 4.0-litre Porsche engines where component wear can escalate quickly if ignored.6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAC109311
The product you are viewing cross references to these numbers