Tensioning cap for Motorola alternator. Porsche 911 / 912 / 914 / 930 Turbo  ›  90160342803

OE Match tensioning cap for selected Porsche 911, 912 and 914 Motorola alternator applications. Supplied diagram information also identifies use on specified 911 Turbo assemblies.

Fits

• Porsche 911 1965-81
• Porsche 912 1965-70
• Porsche 914-6 1969-73
  
  

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram ref no: 11

What This Product Does

This is the tensioning cap used within the specified alternator or generator pulley assembly. It is a separate mechanical component, rather than a complete alternator, voltage regulator or belt.

Technical Details

• Part reference: 90160342803.
• Brand: OE Match.
• Motorola generator identification appears in the supplied 911 1965–69, 911 1970–73 and 914-6 diagrams.
• CAL exclusions apply to the specified 1974–77 and Turbo 1975–77 diagram applications.
  
  

Symptoms of Fault

Loose pulley hardware, belt squeal, vibration or visible pulley wobble warrant inspection of the pulley assembly. These symptoms do not establish that the tensioning cap itself is faulty; belt condition, alignment and adjoining components also need checking.

Why Replacement Matters

Renewing damaged or worn pulley hardware can form part of an alternator repair or classic Porsche restoration. Match the cap to the installed generator and inspect the surrounding assembly rather than selecting it by vehicle model alone.

FAQs

• Will this fit every alternator on the listed vehicles?
  No universal compatibility is stated. Confirm the generator identification, part reference and applicable diagram notes.
• Does a charging fault mean this cap needs replacing?
  No. Charging problems require diagnosis; inspect the belt drive, battery, wiring and earth connections before choosing replacement parts.
• What should be checked during pulley work?
  Inspect belt condition, pulley alignment, retaining hardware and alternator bearing condition.