it is the C8313 just the same as what Alex bought. Hasn't failed me yet after a few thousand miles and a few track weekends. Previously I went through 3 or 4 of the autozone 'lifetime warranty' voltage regulators. This regulator will handle 7+ amps of field draw, which is about what the hemi alternator will draw at full power (according to an alternator specialist I spoke with).
-'02 Dodge Viper Ex-World Challenge racecar -'73 Duster, 6.1 based 392 hilborn hemi, tko600, full floater rear 9", Hellwig custom bars, viper brakes, built for road course