ARCO Marine Zeus A225S Vortec Alternator w/Regulator [4018] Brand_Maretron and in the product manual

and in the product manual available from the Ronstan website

Length: 10" (254mm)

Included with Batery Main Distribution Panels

FLUSH MOUNT MODEL 44411-SERIES

UPC: 040011941060

ARCO Marine Zeus A225S Vortec Alternator w/Regulator [4018] Brand_Maretron and in the product manualZeus A225S Vortec Alternator with Regulator The highest power output alternator in its size class. Features: Engineered for High Energy Production. Suitable for Marine, RV, Military, and Commercial applications. Rapidly charges large battery banks. Coolest operating temperatures for increased performance. Runs 8 20% cooler than incumbent alternators due to: Heat shedding coatings Rectifier located on housing exterior Dual cooling fans OEM Components