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Porsche // Panamera 976 2023>> // 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>
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- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- 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 971.2 Panamera Turbo S 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
- 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
Fits:
Porsche 95B.1 Macan 2.0ltr - 2014 to 2018
Porsche 95B.1 Macan S 3.0lr - 2014 to 2018
Porsche 95B.1 Macan GTS 3.0ltr - 2014 to 2018
Porsche 95B.1 Macan turbo 3.6ltr - 2014 to 2018
Porsche 95B.2 Macan 2.0ltr - 2019 to 2021
Porsche 970 Panamera Hybrid 3.0ltr - 2009 to 2016
Porsche 971 Panamera turbo 4.0ltr - 2017 to 2023
Porsche 958 Cayenne Hybrid - 2010 to 2017
Porsche 9YA Cayenne turbo 4.0ltr - 2018 to 2023
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A710931100
The product you are viewing cross references to these numbers
- Porsche 9YA.2 Cayenne S Coupe V8 4.0L (474Hp) 2023>>
- Porsche 9YA.2 Cayenne GTS V8 4.0L Bi-Turbo Petrol 2023>>
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- Porsche 9YA.2 Cayenne Turbo E-Hybrid Coupe V8 4.0L (739Hp) 2023>>
- Porsche 9YA.2 Cayenne Turbo E-Hybrid Coupe with GT Package V8 4.0 (739Hp) 2023>>
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- Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
- Porsche 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>
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>>
- Porsche 9YA.2 Cayenne Turbo E-Hybrid Coupe with GT Package V8 4.0 739Hp 2023>>
- Porsche 976 Panamera GTS V8 4.0L 2023>>
- Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
- Porsche 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>
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
- Porsche 9YA.2 Cayenne S Coupe V8 4.0L (474Hp) 2023>>
- Porsche 9YA.2 Cayenne GTS V8 4.0L Bi-Turbo Petrol 2023>>
- Porsche 9YA.2 Cayenne GTS Coupe V8 4.0L Bi-Turbo 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>>
- Porsche 9YA.2 Cayenne Turbo E-Hybrid Coupe with GT Package V8 4.0 (739Hp) 2023>>
- Porsche 976 Panamera GTS V8 4.0L 2023>>
- Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
- Porsche 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>
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>>
- Porsche 9YA.2 Cayenne Turbo E-Hybrid Coupe with GT Package V8 4.0 739Hp 2023>>
- Porsche 976 Panamera GTS V8 4.0L 2023>>
- Porsche 976 Panamera Turbo E-Hybrid V8 4.0L 2023>>
- Porsche 976 Panamera Turbo S E-Hybrid V8 4.0L 2023>>
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