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Porsche > 911 & 912 (1965-1989) > 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F) > Gearbox / Transmission >

Clutch Guide Tube

Clutch Guide Tube

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Clutch Guide Tube. Porsche 911 70-71 - 91111608700
4
Clutch Guide Tube. Porsche 911 70-71
Special Order item
91111608700
Product Information
Product Information
Clutch Guide Tube.
The OE Match Clutch Guide Tube is a high-quality replacement transmission component designed to provide a smooth and accurate guide path for the clutch release bearing during clutch operation. Manufactured to OE specifications for fit, precision and durability, this guide tube plays a critical role in ensuring reliable clutch engagement and disengagement while reducing wear within the clutch release mechanism. 

Fits: 
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Diagram Ref No 1

Mounted to the gearbox housing, the guide tube supports the clutch release bearing as it moves forward and backward during operation. Its precision-machined surface helps minimise friction and ensures the release bearing remains correctly aligned, contributing to smooth clutch performance and dependable gear changes.  

What This Product Does:
  • Provides a guide surface for the clutch release bearing.
  • Maintains correct alignment of the clutch release mechanism.
  • Ensures smooth movement during clutch engagement and disengagement.
  • Reduces friction within the clutch operating system.
  • Supports consistent clutch pedal feel.
  • Helps minimise wear on the release bearing assembly.
  • Contributes to smooth gear changes and reliable transmission operation.

Symptoms Of Wear Or Failure:
  • Stiff or inconsistent clutch pedal feel.
  • Difficulty engaging or selecting gears.
  • Rough or jerky clutch operation.
  • Squeaking, scraping or grinding noises during clutch use.
  • Premature wear of the clutch release bearing.
  • Clutch release bearing binding or sticking.
  • Poor clutch disengagement.
  • Visible scoring, corrosion or wear on the guide tube during inspection.

Why Replacement Matters:

  • The clutch guide tube is subjected to constant contact from the clutch release bearing every time the clutch pedal is operated. Over time, the guide surface can become worn, scored or corroded, increasing friction and reducing the smooth movement of the release bearing.
  • A worn guide tube can accelerate wear of the clutch release bearing and other clutch components, leading to poor clutch performance, difficult gear changes and increased stress on the transmission. If left unresolved, excessive wear may contribute to premature failure of the clutch release system and more costly repairs.
  • Replacing a worn clutch guide tube restores smooth release bearing operation, improves clutch performance and helps protect associated clutch components from unnecessary wear. An OE Match replacement provides factory-style fitment, precision manufacturing and long-term durability, ensuring reliable clutch operation and preserving the driving characteristics of your Porsche.



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

91111608700
91111608700

The product you are viewing cross references to these numbers
Clutch Guide Tube. Porsche 911 SC 1972-83 (915 Gearbox) - 91511608703
4
Clutch Guide Tube. Porsche 911 SC 1972-83 (915 Gearbox)
91511608703/1
Product Information
Product Information
Clutch Guide Tube.
The OE Match Clutch Guide Tube is a high-quality replacement transmission component designed to provide a smooth and accurately aligned guide surface for the clutch release bearing. Manufactured to OE specifications for fit, precision and durability, this guide tube plays a vital role in ensuring reliable clutch operation and smooth gear changes.  

Fits:
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC  

Diagram Ref No 1

Mounted to the gearbox housing, the guide tube supports the movement of the clutch release bearing as the clutch pedal is operated. By maintaining correct alignment and reducing friction within the clutch release mechanism, the guide tube helps ensure consistent clutch engagement and disengagement while protecting surrounding clutch components from premature wear.  

What This Product Does:
  • Provides a guide surface for the clutch release bearing.
  • Maintains correct alignment of the clutch release mechanism.
  • Supports smooth clutch engagement and disengagement.
  • Reduces friction within the clutch operating system.
  • Helps maintain consistent clutch pedal feel.
  • Minimises wear on the release bearing assembly.
  • Contributes to reliable gear changes and drivetrain performance.

Symptoms Of Wear Or Failure:
  • Heavy, stiff or inconsistent clutch pedal operation.
  • Difficulty engaging or selecting gears.
  • Rough clutch engagement or disengagement.
  • Squeaking, scraping or grinding noises during clutch operation.
  • Premature wear of the clutch release bearing.
  • Clutch release bearing sticking or binding.
  • Poor clutch disengagement performance.
  • Visible scoring, corrosion or wear on the guide tube during inspection.

Why Replacement Matters:

  • The clutch guide tube is subjected to constant contact from the clutch release bearing every time the clutch pedal is pressed. Over time, friction, contamination and normal wear can cause the guide surface to become scored, worn or corroded, reducing the efficiency of the clutch release mechanism.
  • A worn guide tube can increase stress on the clutch release bearing and other clutch components, resulting in poor clutch feel, difficult gear changes and accelerated wear throughout the clutch assembly. If left unresolved, excessive wear may contribute to premature failure of the release bearing and more extensive transmission repairs.
  • Replacing a worn clutch guide tube restores smooth release bearing movement, improves clutch performance and helps protect associated clutch components from unnecessary wear. An OE Match replacement provides factory-style fitment, precision manufacturing and long-term durability, ensuring dependable clutch operation and preserving the driving characteristics of your Porsche.



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

91511608703
91511608703

The product you are viewing cross references to these numbers
Throw out bearing guide tube update or repair Porsche 915 or 930 transmission
3
Throw out bearing guide tube update or repair Porsche 915 or 930 transmission
CMS.915.GT
Product Information
Product Information
This update will allow for use of the late style 915 main shaft seal and o-ring on early transmissions ('72-'75) where the seal installs from the inside and the guide tube is not removable.
The update is a also good repair for those whom have loose, damaged or worn out guide tubes.

** This requires machining to fit

The original is machined off and a custom steel tube is fitted. It's further retained from the inside of the diff case with a high quality snap ring and sealed with the factory o-ring.
DISPLAYING 1 to 3 (of 3 products)
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About Clutch Guide Tube

Porsche Clutch Release Bearing Guide Tubes | Smooth Operation & Precise Alignment

Clutch release bearing guide tubes are crucial components in your Porsche’s clutch assembly, ensuring the smooth and precise movement of the clutch release bearing. These cylindrical sleeves allow the bearing to slide freely and accurately when the clutch pedal is pressed, maintaining consistent alignment and preventing uneven wear on surrounding components.

At Design911, we supply high-quality clutch release bearing guide tubes and sleeves engineered to match or exceed original specifications. Manufactured from precision-machined steel or aluminium alloys, each guide tube offers exceptional durability, corrosion resistance, and surface smoothness — guaranteeing reliable performance and consistent clutch operation across Porsche models.

Whether you’re servicing a 911, Cayman, Boxster or more, replacing a worn or damaged guide tube helps restore smooth clutch engagement and ensures optimal bearing travel under load.

What Do Clutch Release Bearing Guide Tubes Do?

The clutch release bearing guide tube (also known as a bearing sleeve or collar) acts as a sliding surface for the clutch release bearing, ensuring it moves in perfect alignment with the pressure plate.

Core Functions:

  • Provides a low-friction surface for the release bearing to travel on.
  • Keeps the bearing aligned with the clutch diaphragm spring.
  • Prevents side-loading or misalignment during clutch operation.
  • Reduces friction, vibration, and wear within the clutch assembly.

Without a properly functioning guide tube, the bearing can bind, chatter, or wear unevenly — leading to clutch engagement issues and potential transmission damage.

Why Do Clutch Release Bearing Guide Tubes Fail or Wear Out?

Guide tubes endure constant contact with the moving release bearing and are exposed to heat, vibration, and clutch dust. Over time, these factors contribute to wear, corrosion, and frictional damage.

Common Causes of Failure Include:

  • Scoring or pitting from bearing friction or contamination.
  • Heat damage from excessive clutch use or poor lubrication.
  • Corrosion from moisture or road debris.
  • Deformation or cracking due to excessive force during clutch installation.
  • Bearing misalignment or worn clutch components causing uneven wear.

Once damaged, a guide tube can cause rough clutch feel, noisy bearing operation, or even prevent full clutch disengagement — making replacement essential for smooth performance.

Why Replace Your Porsche Clutch Release Bearing Guide Tube?

Replacing your clutch release bearing guide tube ensures precise bearing movement, consistent pedal feel, and longer clutch lifespan. Upgraded or precision-engineered replacements provide superior fitment and durability, improving clutch responsiveness and reducing future maintenance.

Key Benefits:

  • Restores smooth, friction-free bearing operation.
  • Prevents clutch chatter, noise, and vibration.
  • Protects release bearing and clutch components from wear.
  • Maintains proper clutch alignment for optimal performance.
  • Constructed from high-strength, corrosion-resistant materials.
  • Ideal for both maintenance and performance applications.

For best results, the guide tube should always be replaced alongside the release bearing and clutch components during a clutch service.

Highlights

  • Precision-engineered guide tubes for Porsche clutch systems.
  • Designed for exact fitment and smooth bearing travel.
  • Manufactured from hardened steel or aluminium alloys.
  • Corrosion- and heat-resistant for extended service life.
  • Essential for smooth clutch engagement and reliable operation.
  • Suitable for Porsche 911, Boxster, Cayman, and other models.       

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