Porsche (Single 82mm) Alternator Pulley - Outer - 911/930 (76–89) 930-106-209-02-OEM | OEM Engine Cooling Pulley

Achieve consistent cooling and reliable charging performance with the Porsche Alternator Pulley Outer (82mm) – 930-106-209-02. Designed for Porsche 911 and 930 models produced from 1976 to 1989, this precision-machined OEM pulley provides accurate belt alignment and stable rotation for both the alternator and cooling fan.

Made from high-strength aluminum alloy, it delivers lightweight efficiency and exceptional durability under high RPMs. Perfect for engine restorations, fan belt service, or cooling system maintenance, this pulley ensures smooth power transfer and maintains the legendary reliability of Porsche’s air-cooled engines.

Key Features

• OEM Porsche Engineering – Manufactured to Porsche’s exact specifications for perfect fitment and balanced operation

• 82mm Single Pulley Design – Provides efficient power transfer and precise belt alignment for alternator and cooling fan

• Lightweight Aluminum Construction – Reduces rotational mass while ensuring long-term durability

• Ensures Proper Cooling & Charging – Maintains consistent airflow and alternator performance under all driving conditions

• Corrosion-Resistant Finish – Protects against wear and environmental damage

• Direct Fit for Porsche 911 and 930 (1976–1989) – Simple installation with factory-compatible hardware

• Ideal for Restorations & Performance Maintenance – Recommended during alternator, belt, or cooling fan service

Frequently Asked Questions (FAQ)

1. What does the Porsche Alternator Pulley do?
It connects the alternator and cooling fan via a belt, maintaining proper tension and ensuring consistent airflow for cooling and electrical power generation.

2. Which Porsche models use this pulley?
This pulley fits Porsche 911 and 930 models from 1976 through 1989 with air-cooled engines.

3. What size is this alternator pulley?
It features an 82mm single-groove design, optimized for balanced belt speed and airflow efficiency.

4. Is this an OEM-quality part?
Yes, the 930-106-209-02 pulley meets Porsche’s original design and performance standards for precise fitment and long-term reliability.

5. When should the alternator pulley be replaced?
Replace it during fan belt service, alternator rebuilds, or if signs of wear, cracking, or imbalance are present.