One Wire 12V Marine Alternator, 42 Amp Replacement For OMC Mercruiser Inboard Engines Like 3.0L 3.8L 4.3L 5.0L CW Rotation, V1 Pulley, IR Regulator, EF Cooling Fan, Built To Replace 1100576 1100577 1100894 1100912

Single 12V Marine Alternator, 42A CW Replacement
✔️ 12V, 42A, CW rotation, V1 pulley, IR regulator, EF cooling fan

This single-unit, 12V marine alternator replacement is built for inboard engine setups and a wide range of boat models. It features CW rotation, V1 pulley, an internal IR regulator, and an EF cooling fan. It is designed to replace OEM numbers such as 1100576, 1100577, 1100894, and 1100912 and comes with a 1-year warranty.

✅ Unit Type: Alternator
✅ Voltage: 12
✅ Amperage: 42
✅ Rotation: CW
✅ Pulley Class: V1
✅ Regulator: IR
✅ Fan Type: EF
✅ Warranty: 1-year
✅ Replaces OEM numbers: 1100576, 1100577, 1100894, 1100912

💡 What is a 12V marine alternator used for in boat engines? A handy guide for understanding its role in charging and power management.

• 12V charging for starting and house batteries
• Maintains electrical readiness during engine operation
• Commonly replaced to restore OEM performance