Clutch vacuum control hose. Porsche 911 Sportomatic 1967-72 / 914-6 Sportomatic 1970-71 › 90510807500

This OE Match clutch vacuum control hose connects the intake manifold to the control valve in the Sportomatic clutch-release system. It provides the vacuum connection needed by the clutch control assembly on the applications listed below.

Fits

• Porsche 911 1967–1968 w/ Sportomatic transmission
• Porsche 911 1969–1972 Sportomatic
• Porsche 914 1970–1971 with Sportomatic transmission
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  Diagram ref no 14
  
  What Is This Part?

This is the hose linking the engine intake manifold to the Sportomatic control valve. Sportomatic uses a vacuum-operated clutch-release arrangement, with the control valve regulating vacuum to the clutch servo. This hose forms part of the vacuum supply path, so its condition and the sealing of its connections matter to correct operation. During repairs, it should be checked alongside the other vacuum hoses, reservoir, valve and servo rather than treated as the only possible source of a clutch-release fault.

What Does This Part Do?

• Connects the vacuum supply: Links the intake manifold to the Sportomatic control valve.
• Maintains a sealed passage: An intact hose and correctly seated connections help prevent air entering this part of the vacuum circuit.
• Supports clutch-release control: Supplies the vacuum connection used by the valve within the clutch operating system.
  
  Why Replace This Part?

Replace the hose if inspection finds splits, deterioration or connections that no longer seal securely. A leak can reduce the vacuum available to the clutch-release system, while a flattened or kinked hose can restrict the passage. Replacing a confirmed defective hose addresses that fault without assuming that the control valve or clutch itself also needs renewal.

If the clutch does not disengage properly, inspect the complete operating system. Vacuum leaks, servo faults, linkage adjustment and electrical control problems can produce overlapping symptoms, so diagnosis should come before replacing further components.

When to Replace This Part?

• Visible damage: Cracks, splits, abrasion or damaged hose ends are present.
• Poor connection: The hose no longer seats securely on its connection points.
• Restricted passage: The hose is kinked, crimped or flattened.
• Confirmed leakage: Testing identifies a vacuum leak through the hose or its ends.
• Removal and refitting: Inspection during manifold or Sportomatic work reveals deterioration that prevents sound refitting.
  
  Where Is This Part Fitted?

Location: Between the engine intake manifold and the Sportomatic control valve, within the clutch-release vacuum system. Check the existing routing and adjoining connections when fitting the replacement.

Product Summary

• Product: Clutch vacuum control hose.
• Brand: OE Match.
• Connection: Intake manifold to Sportomatic control valve.
• Purpose: Provides the vacuum connection used by the clutch-release control system.