M939 5 Ton Alternator
Alternator comes with serpentine multi groove pulley installed for 8.3 C series Cummins. There is also a alternator with the double V belt pulley for the NHC 250 Cummins diesel. Alternator is 80 AMP, provides good output at low rpms, will not fail and ramp up to 60 volts like the OEM alternator can which can damage gauges, ABS computer, and control box, etc.. Alternator uses standard military belts, install requires no change to wiring harness, easy install with supplied bracket. Improved support mounting bracket provides stronger mounting and a very clean looking install. These have proven to be more reliable than the OEM alternator at lower cost. $399.
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