Fan Pulley 3914458 for Cummins ISB/QSB Engines – Direct OEM Replacement
<p>Stop unexpected fan belt slippage and overheating on your Cummins-powered equipment — this <strong>fan pulley 3914458</strong> delivers OEM-equivalent grip, alignment, and durability right out of the box. Built to match the exact bore diameter, keyway depth, and hub taper of genuine Cummins ISB/QSB applications, it eliminates the guesswork and downtime caused by ill-fitting aftermarket pulleys.</p> <ul> <li>Direct replacement for Cummins ISB, QSB4.5, 6CTA, ISC, and 12+ engine variants — no adapters or modifications needed</li> <li>Rigorously tested for concentricity (<±0.05mm) and dynamic balance to prevent premature bearing wear</li> <li>Ships from our Guangzhou warehouse in 2–5 working days — even for single-piece urgent repairs</li> <li>Backed by XUNPO’s 6-month warranty against manufacturing defects and full technical verification support</li> </ul>
View Details