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Balmar 94LY-Series Marine Alternators Designed to Fit Yanmar LY3 Engines

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Balmar 94LY-Series High-Output Marine Alternator
Designed to fit Yanmar LY3

Specifications:
  • 12 or 24 Volt, 140 to 210 Amp
  • Minimum Belt Width: 1/2" Dual
  • Bi-Directional Cooling Fan Standard
  • Isolated Ground Terminal Ensures Proper Grounding
  • Meets USCG Title 33 Safety Standards
  • Safe For Use On Gasoline or Diesel Engines
  • Beefy 3.15" Mounting Foot Spacing Fits Hitachi-Style Mounts
  • External Regulator: REQUIRED
  • One Year Limited Warranty
Choose your alternator by checking the box at the right, then click "Add to Cart."
Note: Don't forget the Tensioning Arm Kit!

This alternator is a direct-fit for the Yanmar LY3 engine. It comes with a multi-groove serpentine pulley already installed, and lines up perfectly with the factory drive belt.

94LY-Series alternators feature oversized components for better cooling and longer life. Rugged cast aluminum cases. Extra-heavy custom windings deliver excellent output response. A proven workhorse in systems supplying larger battery banks and house electrical loads. One year limited warranty.

Cold/Hot Output (Amps @ Alternator RPM)
RPM 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
12 Volt
165 Amp
COLD 18 74 101 119 124 130 135 139 151 162
HOT
17 54 79 91 102 108 114 120 127 130
12 Volt
210 Amp
COLD 19 43 89 124 143 159 168 175 188 205
HOT 15 37 78
115 120 135 140 151 159 169
24 Volt
140 Amp
COLD 5 12 37 54 66 85 101 114 121 132
HOT 5 11 35 49 60 78 93 100 105 111

Balmar 94LY-Series Diagram

Alternator Dimensions
A C D E G J K
6.00" 8.00" 9.00" 7.00" 0.55" 3.15" 0.75"