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Small Frame Alternator, 78 AmpĀ 

Small Frame Alternator, 78 Amp 12v (Volt)

  • (New 12V, 78-AMP)
  • Fits Mercury, OMC, Volvo & others
  • Can replace Mando & Motorola
  • Replaces Merc #'s 78477, 78403A 2
  • Delco Style, 10SI, Ignition Protected
  • 3-Wire Hook-Up w/ Neg. Ground
  • Red Wire is for Sensor
  • Black Wire is for Excitation
  • 20053 can be interchanged with 20054

View API Alternator Catalog
OEM to API Part Number Cross Reference

MSRP: $198.00
Your Price: $140.99
You Save: 29% off MSRP!

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