Nissan FJ20 to SR20 Alernator Conversion Pulley

Swapping your FJ Alternator for an SR20 one? Moved to a multi-rib drive belt? Our 4PK Alternator pulley is a simple press on conversion.

Need a multi-rib FJ20 Harmonic Damper as well? Check out our Nissan FJ20 (4PK) Race Sereis Harmonic Damper with Integrated Trigger.

Ross Performance Parts Nissan FJ20 to SR20 Alternator (4PK) Conversion Pulley (Underdriven 20%)

  • 20% Underdriven for sustained high rpm
  • Press on – no modification
  • Precision machined 4PK Multi-rib profile
  • Pulley Shields to maintain proper belt alignment in adverse conditions
  • Seamless integration with our 4PK Nissan FJ20 Harmonic Damper

$150.00 AUD

Please select from the options below.

SKU: 304010-10-SP1-UD20

Nissan FJ20 4PK Alernator Conversion Pulley – Suits SR20 Alternator

Key Features:

  • Designed and manufactured in-house using CMM, 3D modeling and state of the art CNC technology
  • Manufactured from aerospace grade aluminium
  • Anodized gloss black for corrosion resistance

Got any questions or feedback on our Nissan FJ20 Underdriven Alternator Pulley, Nissan FJ20 Harmonic Dampers or, any other tech questions? Please call +61 2 6059 7705 today! You can also send us an email:

#GoHarder with #RossPerformanceParts

Additional information



Engine Model

Nissan FJ20