Marine 3.15" saddle 240A S series alt w/ 1V and 6 rib pulleys 1998 - 2002 10SI and 12SI alternators on

10SI and 12SI alternators on most 1963 through 1985 GM vehicles

and industrial applications due to its exceptional deadening properties

75 inch diameter pulley on this unit will yield 140+ amps at just 800 engine idle RPM with a 6 inch crankshaft pulley

More scratch resistant and doesn’t fade

Marine 3.15" saddle 240A S series alt w/ 1V and 6 rib pulleys 1998 - 2002 10SI and 12SI alternators onS Series The S series of 6 phase alternators offers incredible output in a compact and durable package. Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding airflow ensure long service life, even in severe conditions. These units are available for a broad range of domestic and import applications in 170, 240, or 320 amp configurations. The 240 amp model offers the