7 Rib 45mm Serpentine Pulley

7 Rib 45mm Serpentine Pulley

Upgrade your 7 Rib 45mm Serpentine Pulley with a high-output alternator from JS Alternators. Built with hairpin (6-phase) technology for higher idle output and improved efficiency over conventional alternators.

Key Features

• Hairpin (6-Phase) Design — More output at idle, more efficient than conventional alternators
• Premium Bearings — Built to withstand high engine RPM
• Dual Plate Rectifier — 12 heavy-duty diodes for improved cooling
• Smaller Pulley Included — Spins faster for maximum output
• High-Output Performance — Built for car audio, marine, racing, and high-demand electrical systems

Fitment

• 7 Rib 45mm Serpentine Pulley

Notes

• A smaller pulley is included — install a 1/2" to 1" shorter belt for proper fit

Pro Tip: When installing a smaller pulley alternator, measure your current belt and purchase one that is 1/2" to 1" shorter for the best fit.