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Porsche 992 (911) MK1 2019-2024 992.1 Turbo S 3.8L 2020-24 Engine Rebuild Parts Cylinder Head / Camshaft Carrier

Cylinder head gasket. Porsche 955 Cayenne 3.2L  ›  95510438300

Cylinder head gasket. Porsche 955 Cayenne 3.2L - 95510438300, 807.574
2
Check vehicle fitment
Special Order item
95510438300
Product Information
Product Information
Cylinder head gasket.

Fits:
Porsche 955 Cayenne 3.2L 2004-06

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

Related reference numbers
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95510438300
95510438300
807.574

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Valve lash tool. Porsche 911 / 964 - T23
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Valve lash tool. Porsche 911 / 964
T23
Product Information
Product Information
Rennline valve lash tool.

Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994

Product Description

Valve lash adjustments on the air-cooled 911 engine can be a frustrating and time consuming experience, even for the seasoned Porsche mechanic.
Working in close, cramped quarters can make valve adjustments an unpleasant procedure.

Finally, there is a simpler, faster and more exacting way to adjust valve lash on all air-cooled Porsche 911 engines! From the professional mechanic to the owner/enthusiast, this easy-to-use device is made to last for many years and will prove to be a valuable addition to your 911 toolbox.

• Repeatable 0.1 mm (.004 in) lash clearance settings on every valve
• Saves time and provides more accurate over traditional feeler gauge methods
• Aluminum and steel construction
• Zinc plated finish provides corrosion protection
• Laser engraved markings
• Durable box with foam insert for safe storage
O-ring 10x2.5N For Cylinder Head Choke. Porsche 997 / 991 / 92 / 987 / 981 / 92 / 95B / 957 / 958 / 970 2009>> - 9A700827200, 99970757740
2
O-ring 10x2.5N For Cylinder Head Choke. Porsche 997 / 991 / 92 / 987 / 981 / 92 / 95B / 957 / 958 / 970 2009>>
Special Order item
9A700827200
Product Information
Product Information
O-ring 10x2.5N For Cylinder Head Choke.
Sold Each.

Fits:

Porsche 997.2 Carrera 3.6 / 3.8L MKII 2009>>2012
Porsche 997.2 Turbo 3.8L MKII 2010>>2013
Porsche 991.1 Carrera MKI 2012>>2016
Porsche 991.2 Carrera MKII 2017>>2019
Porsche 991 Turbo MKI / MKII 2014>>2020
Porsche 992.1 Carrera MKI 2019>>2024
Porsche 992.2 Carrera MKII 2025>>
Porsche 992 Turbo 2020>>
Porsche 987.2 Boxster MKII 2009>>2012
Porsche 987.2 Cayman MKII 2009>>2012
Porsche 981 Boxster 2012>>2016
Porsche 981 Boxster Spyder 2016
Porsche 982 Boxster 2017>>
Porsche 981 Cayman 2014>>2016
Porsche 981 Cayman GT4 2016
Porsche 982 Cayman 2017>>
Porsche 95B.1 Macan 3.0L / 3.6L MKI 2014>>2018
Porsche 957 Cayenne 4.8L 2007>>2010
Porsche 958 Cayenne 3.6L / 4.8L 2011>>2018
Porsche 970 Panamera 3.0L / 3.6L / 4.8L MKI / MKII 2009>>2016

Diagram Ref No 9



Related reference numbers
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9A700827200
9A700827200
99970757740

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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