Zeus A225s Vortec with Terminal Block Get Yours

The Zeus A225S Vortec with Terminal Block is a high-output 12V 225A marine alternator designed for Vortec/GM pad mounts, delivering exceptional charging performance, cooler operation, and reliable power for large battery banks in marine, RV, military, and commercial applications.

• 12V, 225A high-output alternator engineered for marine, RV, military, and commercial applications

• Replaces Mando-type alternators using Vortec/GM pad mounting feet on Mercruiser and Volvo Penta 3.0GLM, 3.0GLP, 4.3GXi, 5.7GiL, 5.7GXiL marine engines (GM blocks)

• External regulation (EX) or Internal/External (IE) regulation options available

• Rapidly charges large battery banks and can reduce the need for a generator by producing additional power directly from your engine

• Optimized for performance even at idle speeds, delivering sustained output for demanding electrical systems

• 14.1V default output voltage

• Max output: 254A (cold, 9,000 RPM)

• Sustained cruising output: 187A (hot, 6,000 RPM)

• Sustained idle output: 157A (hot, 3,000 RPM)

• Cut-in speed: 1,061 alternator RPM

• Maximum alternator RPM: 19,000

• Rotor poles: 16

• Stator size: 130mm

• Frame size: Small

• Weight: 12 lbs (6.7 kg)

• Side battery post with M8 thread

• Standard pulley: 49mm 6-groove (49K6)

• Pulley mount: 17mm diameter shaft, 25mm long, threaded M17 x 1.5

• Includes pulley hardware: M17 x 1.5 x 24mm nut with 18mm ID x 29mm OD washer

• Diodes: 6 positive and 6 negative, 50A rated, avalanche type

• Runs 8–20% cooler than standard alternators thanks to:

  • Heat-shedding coatings

  • Rectifier mounted externally on the housing

  • Dual cooling fans

• E-Coat or Cerakote finish absorbs less heat, keeping the unit cooler and sustaining amperage output under heavy load