API# 20054 Mando 12V, 55-AMP used on Mercruiser, OMC, Volvo & Others, 3-Wire Hook-up 2" Mounting Ft. 

Fits Mercruiser, OMC & Others.
Rplc. Merc #'s 12449, 817119A1, A4, 92497A3
Volvo #'s 3854809, 3854182, 3853853, 3850927, 3857298
Mando # Ac 155603
Rplc. Pcm # Ra097006
Internally Regulated, 55 Amp Neg. Ground
3-Wire Hook-Up, Tachometer Lead,
Supplied With A V-Pulley
Ignition Protected SAEJ1171
Red Wire Is For Sensor
Purple Wire Is For Excitation
Arco# 60050
OE# 92497A3
Sierra# 18-5966