Delco 3-Wire 12V 78-Amp 10SI used in Many Applications including Mercruiser, Volvo, Internally Regul

SKU: 20053
OE#: 78403A2
$178.00
Delco 3-Wire 12V 78-Amp 10SI used in Many Applications including Mercruiser, Volvo, Internally Regul
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Delco 3-Wire 12V 78-Amp 10SI used in Many Applications including Mercruiser, Volvo, Internally Regul

SKU: 20053
OE#: 78403A2
$178.00

Fits Mercury, OMC, Volvo & Others
Can Replace Mando & Motorola
Rplc. Merc #'s 78477, 78403A2
Delco Style 10 Si
Ignition Protected SAEJ1171
3-Wire Hook-Up W/Neg. Ground
Red Wire Is For Sensor
Black Wire Is For Excitation
20053 Can Be Interchanged With 20054
Arco# 20104
OE# 78403A2
Sierra# 18-5951