More Porsche Alternator Pulley - German 91110620803
SKU: GER-91110620803

Porsche Alternator Pulley - German 91110620803

911

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Description

Details

SKU:
GER-91110620803
FCP Euro ID:
640034
Made in:
Germany
Quality:
Aftermarket

OE Numbers

91110620803, 91110620802, 91110620800

MFG Numbers

91110620803

Product Information

Alternator Pulley

An Alternator Pulley is the wheel attached to the alternator shaft that connects to the engine’s serpentine belt or drive belt. As the engine runs, the belt turns the pulley, which spins the alternator’s rotor and generates electricity to charge the battery and power the vehicle’s electrical systems.

Many modern vehicles use an Overrunning Alternator Pulley or Overrunning Alternator Decoupler, which has a clutch-like mechanism that allows the alternator to "freewheel" when engine speed suddenly drops. This reduces belt vibration and improves efficiency.

Alternator Pulley Failure Symptoms
  • Squealing or chirping noises – especially at startup or when revving the engine.
  • Battery warning light on dashboard – alternator isn’t charging properly due to poor pulley function.
  • Intermittent charging issues – lights dimming or electronics flickering from unstable alternator output.
  • Excessive belt vibration or wear – serpentine belt jumps, slips, or frays.

Fits These Cars

Porsche 911

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  • 1976 Porsche 911 S Alternator Pulley
    Automatic RWD Targa 2.7L H6 Gas
  • 1976 Porsche 911 S Alternator Pulley
    Manual RWD Targa 2.7L H6 Gas
  • 1977 Porsche 911 S Alternator Pulley
    Automatic RWD Coupe 2.7L H6 Gas
  • 1977 Porsche 911 S Alternator Pulley
    Automatic RWD Targa 2.7L H6 Gas
  • 1978 Porsche 911 SC Alternator Pulley
    Automatic RWD Coupe 3.0L H6 Gas
  • 1978 Porsche 911 SC Alternator Pulley
    Manual RWD Coupe 3.0L H6 Gas
  • 1978 Porsche 911 SC Alternator Pulley
    Automatic RWD Targa 3.0L H6 Gas
  • 1978 Porsche 911 SC Alternator Pulley
    Manual RWD Targa 3.0L H6 Gas
  • 1979 Porsche 911 SC Alternator Pulley
    Manual RWD Coupe 3.0L H6 Gas
  • 1979 Porsche 911 SC Alternator Pulley
    Manual RWD Targa 3.0L H6 Gas

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