![ARCO Marine BI-1203-3A Battery Isolator - 120A - 1 Alternator, 3 Battery [BI-1203-3A] Boat Outfitting | Deck / Galley With our RAILBLAZA Spooling Station](https://cdn.shopify.com/s/files/1/0614/9655/7734/files/106601XL.jpg?v=1731001289)
Pay in 4 interest-free payments of $42.75 Learn more
Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
With our RAILBLAZA Spooling Station Track Mount
2 x Stainless Steel T-Bolts - T-Bolt length 1" / T-nut 0
Replacement alternator that will fit late model Mercruiser
Output Current (nominal): 40 A
Shock resistant construction
ARCO Marine BI-1203-3A Battery Isolator - 120A - 1 Alternator, 3 Battery [BI-1203-3A] Boat Outfitting | Deck / Galley With our RAILBLAZA Spooling StationBI 1203 3A Battery Isolator 120A 1 Alternator, 3 Battery The Arco Marine BI 1203 3A is an inboard outboard battery isolator that can handle 1 alternator, 3 batteries, and 120A max. Rated for use with 10 to 350 amp alternators on 12, 24, or 32 volt negative ground systems. *Includes exciter terminal Features: 1 alternator, 3 batteries, 120A max Inboard and outboard battery isolators are solid state devices that allow electrical current to flow in one
