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Porsche Boxster 718 (982) 2017>> Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>> Engine Rebuild Parts

Cylinder Head / Camshaft Carrier

Cylinder Head / Camshaft Carrier

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DISPLAYING 1 to 5 (of 5 products)
Cylinder head gasket Cyl 1-3 and 4-6. Porsche 718 Boxter , Cayman 4.0L - 0PB103148D, 0PB103149D, 0PB103148C, 0PB103149C, 0PB103148A, 0PB103149A
3
Cylinder head gasket Cyl 1-3 and 4-6. Porsche 718 Boxter , Cayman 4.0L
Special Order item
0PB10314
Product Information
Product Information
Cylinder head gasket Cyl 1-3 and 4-6. 

For Cylinder numbers 1 - 3 and 4-6

Fits:
Porsche 718 Cayman 4.0L 
Porsche 718 Boxster 4.0L 

Click 'Zoom in' for large parts diagram.
Diagram ref no 2



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Related, superseded, cross reference or alternative numbers for comparison.

0PB10314
0PB103148D
0PB103149D
0PB103148C
0PB103149C
0PB103148A
0PB103149A

The product you are viewing cross references to these numbers
Cylinder head gasket Cyl 1-3 and 4-6. Porsche 718 Boxter , Cayman 4.0L - 0PB103148D, 0PB103149D, 0PB103148C, 0PB103149C, 0PB103148A, 0PB103149A
3
Cylinder head gasket Cyl 1-3 and 4-6. Porsche 718 Boxter , Cayman 4.0L
0PB10314
Product Information
Product Information
Cylinder head gasket Cyl 1-3 and 4-6. 

For Cylinder numbers 1 - 3 and 4-6

Fits:
Porsche 718 Cayman 4.0L 
Porsche 718 Boxster 4.0L 

Click 'Zoom in' for large parts diagram.
Diagram ref no 2



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Related, superseded, cross reference or alternative numbers for comparison.

0PB10314
0PB103148D
0PB103149D
0PB103148C
0PB103149C
0PB103148A
0PB103149A

The product you are viewing cross references to these numbers
Torx head screw BM6 x 80. Porsche 981 / 718 Boxster / Cayman / 997.2 / 991 - 90038510802
3
Torx head screw BM6 x 80. Porsche 981 / 718 Boxster / Cayman / 997.2 / 991
Special Order item
90038510802
Product Information
Product Information
Torx head screw - BM6 x 80
Sold each - used in various places

Fits:
Porsche 981 Boxster / Cayman - 2012 to 2016
Porsche 718 Boxster / Cayman - 2017 Onwards
Porsche 991.1 / 991.2 - 2012 to 2019

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Related, superseded, cross reference or alternative numbers for comparison.

90038510802
90038510802

The product you are viewing cross references to these numbers
Torx Screw Cylinder Head M12 x 1.5 x 140 - 9A700863300, 9A110419100
2
Torx Screw Cylinder Head M12 x 1.5 x 140
Special Order item
9A700863300
Product Information
Product Information

Torx Screw Cylinder Head - M12 x 1.5 x 140
Sold each - 4 required per car

The Cylinder Head Torx Screw is a replacement engine fastening component designed to secure the cylinder head assembly on compatible Porsche engines.

Fits:

  • Porsche Boxster 987 MKII 2.9L 2009-12
  • Porsche Boxster S 987 MKII 3.4L 2009-12
  • Porsche Boxster 981 2.7L 2012-16
  • Porsche Boxster 981 S / GTS 3.4L 2012-16
  • Porsche Boxster 981 Spyder 3.8L 2016
  • Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
  • Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
  • Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
  • Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
  • Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
  • Porsche 991.1 R 4.0L (500 Bhp) 2016
  • Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
  • Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Speedster 4.0L (510Bhp) 2019
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
  • Porsche 991 GT3 Cup 2018-2019
  • Porsche 992.1 Carrera 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Targa 4 3.0L 2020-24
  • Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
  • Porsche 992.1 Speedster 4.0L 2019-24
  • Porsche 992.1 Turbo 3.8L 2020-24
  • Porsche 992.1 Turbo S 3.8L 2020-24
  • Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
  • Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
  • Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
  • Porsche 992.1 GT3 RS 4.0L 2022-24
  • Porsche 992.1 (911) Sport Classic 3.8L 2023
  • Porsche 992.1 (911) Dakar 3.0L 2023-24
  • Porsche 992.2 Carrera 2 3.0L 2024>>
  • Porsche 992.2 Carrera 2S 3.0L 2024>>
  • Porsche 992.2 Carrera T 3.0L 2024>>
  • Porsche 992.2 Carrera 4S 3.0L 2024>>
  • Porsche 992.2 Carrera 2 GTS / Spirit 70 3.6L 2024>>
  • Porsche 992.2 Carrera 4 GTS 3.6L 2024>>
  • Porsche 992.2 Turbo S 3.6L 2024>>
  • Porsche 992.2 GT3 / Touring / S/C 2025>>
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12
  • Porsche Cayman 2.7L 981 2013-16
  • Porsche Cayman S / GTS 3.4L 981 2013-16
  • Porsche Cayman GT4 3.8L 2015-16
  • Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
  • Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
  • Porsche Cayman GT4 Clubsport
  • Porsche Cayman GT4 RS Clubsport 2020-2024

Diagram Ref No 16

What Does It Do?

The cylinder head screw secures the cylinder head to the engine, maintaining the correct clamping pressure needed for reliable combustion chamber sealing.

Why Does It Fail?

Common causes include:

  • Excessive tightening or overstretching
  • Repeated engine overheating
  • Corrosion or thread damage
  • Incorrect installation procedures
  • Reuse of bolts designed for single use

When Should It Be Replaced?

Replace whenever specified by the Porsche workshop procedure, particularly during cylinder head removal or engine rebuilding.

Damaged, stretched or corroded screws must not be reused.

Checks & Installation

Inspect the cylinder head, threaded mounting holes and gasket surfaces before installation.

Follow the correct Porsche tightening sequence, torque settings and angle-tightening procedure where specified.

Confirm whether the original screws are single-use fasteners before reassembly.

Key Features

  • Replacement cylinder head Torx screw
  • M12 x 1.5 thread 140 mm length
  • Helps maintain correct cylinder head clamping
  • Suitable for engine servicing and rebuilding
  • Sold individually – 4 required per car

Porsche Cylinder Head Bolts & Engine Fastening Components

Cylinder head screws are essential engine fasteners that maintain the secure connection between the cylinder head and engine assembly.

Correct installation and tightening are critical for maintaining combustion sealing and preventing damage to engine components.



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

9A700863300
9A700863300
9A110419100

The product you are viewing cross references to these numbers
Trox screw for cylinder head cover. Porsche 997.2 / 991 / Boxster / Cayman - 9A110731301
4
Trox screw for cylinder head cover. Porsche 997.2 / 991 / Boxster / Cayman
Special Order item
9A110731301::1
Product Information
Product Information
Trox screw for cylinder head cover. M 6 x 25.
Sold each

Fits:
Porsche 997.2 2009-12
Porsche 991.1 2012-16
Porsche 991.2 2017-19
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981SP Boxster Spyder 2016
Porsche 982 (718) Boxster 2017>>
Porsche 987C.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 982C (718C) Cayman 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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

9A110731301
9A110731301

The product you are viewing cross references to these numbers
DISPLAYING 1 to 5 (of 5 products)
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About Cylinder Head / Camshaft Carrier

Precision Cylinder Head & Camshaft Covers – Engine Protection and Performance for Porsche Models

The cylinder head and camshaft covers play a vital role in protecting key engine components such as the valvetrain, camshafts, and cylinder head from dirt, debris, and oil contamination. Beyond protection, they ensure proper oil sealing and ventilation — maintaining consistent lubrication and pressure balance within the engine.

At Design911, we offer a wide selection of precision-engineered cylinder head and camshaft covers for both classic and modern Porsche engines. Crafted from high-grade aluminium, magnesium, and composite materials, these covers provide a perfect fit and long-lasting reliability while maintaining the clean, professional look expected from Porsche’s performance heritage.

Whether you’re restoring an air-cooled 911 or servicing a high-output 992, our manufacturer-quality components ensure leak-free operation and exceptional durability.

What Do Cylinder Head and Camshaft Covers Do?

These components serve as the protective shell for your engine’s valvetrain and upper oil channels. They keep contaminants out, manage internal pressure, and help maintain consistent lubrication.

Core Functions:

  • Seal the upper engine area, preventing oil leaks and contamination.
  • Protect the camshafts and valve train from debris and moisture.
  • Regulate crankcase ventilation, supporting optimal engine breathing.
  • Maintain correct oil flow for cooling and lubrication efficiency.

They are essential not only for reliability but also for maintaining the visual and mechanical integrity of your Porsche’s engine bay.

Why Do Cylinder Head / Camshaft Covers Fail?

Over time, heat, pressure, and oil exposure can degrade materials, seals, and gaskets. These issues can lead to leaks, poor ventilation, and even oil starvation in extreme cases.

Common Causes of Failure Include:

  • Cracked or warped covers from repeated heat cycles.
  • Degraded seals or gaskets, causing oil leaks.
  • Loose or fatigued fasteners, leading to uneven sealing pressure.
  • Blocked breather passages, increasing internal pressure.
  • Corrosion or contamination in older engines.

Replacing worn covers and seals restores oil control, prevents leaks, and preserves long-term engine health.

Why Replace with Precision-Engineered Covers?

Upgrading or replacing your covers ensures your Porsche engine operates as intended — leak-free, properly ventilated, and visually clean.

Key Benefits:

  • Restores sealing performance and eliminates oil leaks.
  • Protects vital valvetrain components from dirt and debris.
  • Maintains proper crankcase pressure and oil control.
  • Crafted from premium materials for superior heat and corrosion resistance.
  • Perfect fitment and finish, ensuring long-term reliability.
  • Compatible with a wide range of Porsche models, from classics to modern GT cars.

Precision covers also contribute to the engine’s aesthetic, maintaining the refined look Porsche owners expect.

Highlights:

  • High-strength cylinder head and camshaft covers for Porsche engines.
  • Precision-machined sealing surfaces for long-term oil-tight performance.
  • Manufacturer-quality materials – aluminium, magnesium, and composite options.
  • Improved oil control and internal ventilation. Ideal for engine rebuilds, upgrades, or restorations.
  • Compatible with air-cooled and water-cooled Porsche models.

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