Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://d911api.datadial.net/images/schemaLogo.png https://d911api.datadial.net/images/schemaLogo.png +443456003478 https://d911api.datadial.net Facebook Instagram
Porsche specialists based in the UK
Porsche > Cayenne 92A (958) 2010-2017 > 958 Cayenne V6 3.0L Diesel 245HP 2010-17 > Engine Rebuild Parts >

Rocker Arms & Tappets

Rocker Arms & Tappets

Filter by brand
DISPLAYING 1 to 4 (of 4 products)
Hydraulic Tappet / Valve Lifter for Porsche 957 / 958 Cayenne / 95B Macan / 970 / 971 Panamera Diesel - 958109521, 95810542310, 95510542310
2
Hydraulic Tappet / Valve Lifter for Porsche 957 / 958 Cayenne / 95B Macan / 970 / 971 Panamera Diesel
Special Order item
958109521
Product Information
Product Information

Diesel Engine Hydraulic Tappet / Valve Lifter

This engine hydraulic tappet (also known as a hydraulic valve lifter) is a precision component used in Porsche diesel engines to maintain correct valve clearance automatically. By using engine oil pressure, the tappet ensures smooth valve operation, quiet running and consistent performance across all driving conditions.

Fits:

  • Porsche 957 Cayenne 3.0L Diesel 2007-10
  • Porsche 958 Cayenne V6 3.0L Diesel 245HP 2010-17
  • Porsche 958 Cayenne S V8 4.2L Diesel 382HP 2010-17
  • Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
  • Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
  • Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
  • Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
  • Porsche 95B.1 Macan S Diesel 3.0L V6 258Bhp 2014-18

Diagram ref no 11

In modern Porsche diesel engines, hydraulic tappets play a crucial role in durability, refinement and emissions control—making them an essential service and repair component.

What Does an Engine Hydraulic Tappet Do?

Hydraulic tappets sit between the camshaft and valves, using oil pressure to compensate for thermal expansion and component wear. This allows the valve train to operate with:

  • Correct valve timing and lift
  • Reduced mechanical noise
  • Improved combustion efficiency
  • Lower internal engine wear

By automatically adjusting clearance, hydraulic tappets eliminate the need for manual valve adjustment and help maintain optimal engine performance throughout the rev range.

Why Do Hydraulic Tappets Fail on Porsche Diesel Engines?

Over time, hydraulic tappets are subject to heat, oil contamination and mechanical stress, particularly in high-torque diesel engines.
Common causes of failure include:

  • Oil sludge or poor lubrication
  • Wear to internal check valves
  • Loss of hydraulic pressure retention
  • Extended oil change intervals
  • Contaminated or incorrect oil grades

Symptoms of worn or failing tappets may include:

Ticking or tapping noises from the cylinder head Rough idle or misfiring Reduced engine efficiency Increased valve train wear

Why Replace Worn Hydraulic Tappets?

Replacing worn hydraulic tappets restores:

  • Quiet and smooth engine operation
  • Correct valve timing and combustion
  • Reduced wear on camshafts and valves
  • Long-term engine reliability

Ignoring tappet wear can lead to accelerated damage to the camshaft and valve train, resulting in significantly higher repair costs.



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

958109521
958109521
95810542310
95510542310

The product you are viewing cross references to these numbers
Hydraulic Tappet / Valve Lifter for Porsche 957 / 958 Cayenne / 95B Macan / 970 / 971 Panamera Diesel - 958109521, 95810542310, 95510542310 - 420022210
2
Hydraulic Tappet / Valve Lifter for Porsche 957 / 958 Cayenne / 95B Macan / 970 / 971 Panamera Diesel
958109521/1
Product Information
Product Information

Diesel Engine Hydraulic Tappet / Valve Lifter
Sold each

This engine hydraulic tappet (also known as a hydraulic valve lifter) is a precision component used in Porsche diesel engines to maintain correct valve clearance automatically. By using engine oil pressure, the tappet ensures smooth valve operation, quiet running and consistent performance across all driving conditions.

Fits:

  • Porsche 957 Cayenne 3.0L Diesel 2007-10
  • Porsche 958 Cayenne V6 3.0L Diesel 245HP 2010-17
  • Porsche 958 Cayenne S V8 4.2L Diesel 382HP 2010-17
  • Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
  • Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
  • Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
  • Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
  • Porsche 95B.1 Macan S Diesel 3.0L V6 258Bhp 2014-18

Diagram ref no 11

In modern Porsche diesel engines, hydraulic tappets play a crucial role in durability, refinement and emissions control—making them an essential service and repair component.

What Does an Engine Hydraulic Tappet Do?

Hydraulic tappets sit between the camshaft and valves, using oil pressure to compensate for thermal expansion and component wear. This allows the valve train to operate with:

  • Correct valve timing and lift
  • Reduced mechanical noise
  • Improved combustion efficiency
  • Lower internal engine wear

By automatically adjusting clearance, hydraulic tappets eliminate the need for manual valve adjustment and help maintain optimal engine performance throughout the rev range.

Why Do Hydraulic Tappets Fail on Porsche Diesel Engines?

Over time, hydraulic tappets are subject to heat, oil contamination and mechanical stress, particularly in high-torque diesel engines.
Common causes of failure include:

  • Oil sludge or poor lubrication
  • Wear to internal check valves
  • Loss of hydraulic pressure retention
  • Extended oil change intervals
  • Contaminated or incorrect oil grades

Symptoms of worn or failing tappets may include:

Ticking or tapping noises from the cylinder head Rough idle or misfiring Reduced engine efficiency Increased valve train wear

Why Replace Worn Hydraulic Tappets?

Replacing worn hydraulic tappets restores:

  • Quiet and smooth engine operation
  • Correct valve timing and combustion
  • Reduced wear on camshafts and valves
  • Long-term engine reliability

Ignoring tappet wear can lead to accelerated damage to the camshaft and valve train, resulting in significantly higher repair costs.



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

958109521
958109521
95810542310
95510542310

The product you are viewing cross references to these numbers
Rocker arm. Porsche 957 Cayenne / 958 Cayenne / Macan / Panamera - 95510541720, 112 927, 112927
2
Rocker arm. Porsche 957 Cayenne / 958 Cayenne / Macan / Panamera
Special Order item
95510541720
Product Information
Product Information
Rocker arm.
Price is for each.

porsche

Fits:
Porsche 957 Cayenne 3.0L DIESEL 2009-10
Porsche 958 Cayenne 3.0L DIESEL 2011>>
Porsche 958 Cayenne 4.2L V8 DIESEL 2013>>
Porsche Macan 3.0L V6 TDI 2014>>
Porsche 970 Panamera 3.0L DIESEL 2012>>

Click 'Zoom in' for large parts diagram.
Diagram Ref No 12

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

95510541720
95510541720
112 927
112927

The product you are viewing cross references to these numbers
Rocker arm. Porsche 957 Cayenne / 958 Cayenne / Macan / Panamera - 95510541720 - 422010210
2
Rocker arm. Porsche 957 Cayenne / 958 Cayenne / Macan / Panamera
95510541720/1
Product Information
Product Information
Rocker arm.
Price is for each.

oematch

Fits:
Porsche 957 Cayenne 3.0L DIESEL 2009-10
Porsche 958 Cayenne 3.0L DIESEL 2011>>
Porsche 958 Cayenne 4.2L V8 DIESEL 2013>>
Porsche Macan 3.0L V6 TDI 2014>>
Porsche 970 Panamera 3.0L DIESEL 2012>>

Click 'Zoom in' for large parts diagram.
Diagram Ref No 12

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

95510541720
95510541720

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 4 products)
Also found on these pages
About Rocker Arms & Tappets

Rocker Arms (Cam Followers) & Tappets – Precision Valve Train Components for Porsche Engines

The rocker arms (also known as cam followers) and tappets are crucial components within your Porsche’s valvetrain system. They convert the rotational movement of the camshaft into the vertical motion that opens and closes the engine’s valves, allowing precise control of air, fuel, and exhaust flow.

At Design911, we offer a complete range of rocker arms and tappets developed for Porsche engines across all generations. Manufactured from high-strength, wear-resistant alloys, these components ensure smooth operation, minimal friction, and long-lasting durability. Whether you’re restoring a classic air-cooled 911 or upgrading a modern GT engine, our quality valvetrain components deliver the accuracy and reliability your Porsche demands.

What Do Rocker Arms & Tappets Do?

Rocker arms and tappets form the mechanical link between the camshaft and the valves — controlling the timing and lift that determine engine breathing efficiency.

Core Functions:

  • Transmit camshaft movement to open and close the intake and exhaust valves.
  • Maintain precise valve timing for efficient combustion.
  • Reduce friction and wear through precise geometry and lubrication.
  • Ensure smooth, quiet operation across the rev range.
  • Support consistent power delivery and optimal performance.

Well-functioning rocker arms and tappets are essential for maintaining engine efficiency, throttle response, and durability.

Why Do Rocker Arms & Tappets Fail?

Continuous exposure to high temperatures, pressure, and friction makes rocker arms and tappets susceptible to wear over time.

Common Causes of Failure Include:

  • Oil starvation due to blocked passages or poor lubrication.
  • Surface wear or pitting from high mileage or contamination.
  • Excessive valve clearance leading to noise and impact damage.
  • Camshaft wear causing uneven contact and mechanical stress.
  • Material fatigue from prolonged high RPM use.

Symptoms of failure include ticking or knocking noises, loss of power, misfires, or excessive valve noise, all indicating the need for inspection and replacement.

Why Replace Valvetrain Components?

Replacing worn rocker arms or tappets restores accurate valve timing, reduces friction, and prevents camshaft or valve damage. Our high-performance, precision-engineered replacements are designed for exact fitment and long-term durability under extreme conditions.

Key Benefits:

  • Restores proper valve timing and smooth operation.
  • Reduces engine noise and friction losses.
  • Prevents premature wear of the camshaft and valves.
  • Manufactured from heat-treated, wear-resistant materials.
  • Direct-fit compatibility for a wide range of Porsche engines.
  • Ideal for rebuilds, restorations, or performance upgrades.

A reliable valvetrain system ensures your Porsche runs smoother, quieter, and more efficiently — preserving both performance and longevity.

Highlights:

  • High-strength rocker arms, cam followers, and tappets for Porsche engines.
  • Precision-machined for durability and accurate valve control.
  • Reduces noise, friction, and wear under extreme conditions.
  • Perfect for rebuilds, tuning, and classic restoration projects.
  • Direct-fit, manufacturer-quality parts for 911, Cayman, Boxster and other models.
  • Essential for smooth, consistent engine performance.

You may also like
Popular Models