SKU: RPCR9447
UPC: 859828944702
MPN: R9447
The Racing Power Co-Packaged Double Groove Alternator Pulley (R9447) is a precision serpentine drive component designed for engines requiring optimized alternator speed ratios and belt management. This pulley is ideal for automotive enthusiasts and mechanics who seek reliable charging system performance in both modern and vintage engine configurations.
The double-groove design accommodates standard serpentine belt layouts and allows for flexible pulley ratios that balance alternator output with engine parasitic drag. Manufactured to OEM tolerances, this pulley ensures concentricity and runout specs that help prevent belt slippage and vibration. Its compact footprint and weight of 1.52 lbs contribute to reduced rotational inertia, making it suitable for high-RPM operation.
Engine builders, restoration shops, and DIY mechanics will find this alternator pulley essential when upgrading charging systems or replacing worn serpentine components. It is particularly beneficial when changing alternators or adjusting pulley ratios for optimal performance.
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