12V225ADF315,REARBATTERYPOST,

The ARCO Marine 4012 Zeus A225/3500W-12V High Output Alternator is engineered for high energy production in marine, RV, military, and commercial applications. It rapidly charges large battery banks and is designed for cool operation, running 8-20% cooler than other alternators due to heat-shedding coatings, an externally located rectifier, and dual cooling fans. It is optimized for performance at idle speeds, reducing the need for a generator. The 4012 model features a 3.15"R Saddle mount with a rear exit B+ post and is externally regulated, designed for Yanmar Common Rail engines introduced after 2013, specifically the JH-CR, 3JH40, 4JH45, 4JH57, 4JH80, and 4JH1 models. It is SAE J1171 Certified and proudly made in the U.S.A.