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A. This alternator replaces Cummins original-equipment numbers 3972731 and 4988275, and Remy reference 19020205. On the machine side, it fits Cummins Fire Power engines across 5 applications, including the CFP83-F10, CFP83-F20, CFP83-F30, CFP83-F40, and CFP8E-F10 (2004–2006). Use the selection widget or search our cross-referenced catalogue by OEM number or machine model to confirm fit for your build. Every fitment shown is backed by our Fit Guarantee.
A. Yes. Both Cummins 3972731 and Cummins 4988275 are confirmed OE cross-references for the WAI 8724N. Remy 19020205 is also a listed cross-reference. These are the only published cross-references for this part; if you are working from a different number, search our catalogue by OEM reference or ask Simon to verify.
A. The WAI 8724N is rated at 24 volts and 45 amps output. It follows the Delco 11SI Series IR/IF design — internal regulator, internal fan — and is supplied brand new without a pulley. A compatible pulley for the target application will need to be sourced separately.
A. No — this alternator is supplied without a pulley (w/o Pulley). You will need to fit a suitable pulley for your specific application before installation.
A. Yes — ask Simon, or WhatsApp our team on 07754 288583 with any questions about specifications, suitability, or compatibility.
A. Yes. Every vehicle and OE cross-reference shown for this part is checked against manufacturer data and backed by our Fit Guarantee. If it is not right, our Fit Guarantee or hassle-free returns have you covered.
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