LESTER: 8465

Alternator - Delco 7SI Series
70 Amp/12 Volt, CW, 1-Groove Pulley

The product is designed with a focus on long-term operation in harsh environments and low maintenance costs. It utilizes fully sealed, long-life bearings combined with specialized sealing grease to effectively block out dust, grit, and moisture from job sites, thereby significantly extending bearing service life and reducing the frequency of routine maintenance.
Regarding electrical protection, all electronic components undergo high-standard moisture-proof and salt-spray-resistant varnish treatments, enabling stable operation in humid coastal areas or dusty mining sites. An optimized cooling fin design ensures that critical components remain within safe temperature limits, even when the engine is idling and airflow is low. This highly reliable, robust design guarantees instant startup capability, even amidst extreme seasonal temperature fluctuations. With its standard mounting interfaces and sturdy support structure, the unit is the ideal choice for upgrading the electrical systems of heavy-duty equipment—such as medium-sized excavators and bulldozers—effectively lowering the Total Cost of Ownership (TCO).