ATG20937 Alternator 51429499R Ford 345C 345D 445C 445D 545D 555C 555D 575D 655C
ITEM NO:ATG20937

ATG20937 Alternator 51429499R Ford 345C 345D 445C 445D 545D 555C 555D 575D 655C

ATG20937 Alternator (51429499R) – 12V/65A for Ford Industrial Tractors

Key Specifications:

  • Voltage: 12V (Regulated output: 14V)

  • Current Output: 65 Amps

  • Rotation: Clockwise (CW)

  • Pulley Diameter (Ø2): 75mm

  • Mounting Hole Dimensions:

    • A (Shaft Diameter): 13mm

    • B (Mounting Center Distance): 35mm

  • Length (L2): 82mm

  • Connector Type: Integrated regulator with 2-pin plug

Compatible Models:

Ford Industrial Tractors:

  • 345C, 345D

  • 445C, 445D

  • 545D, 555C, 555D

  • 575D, 655C

OEM & Cross-Reference Part Numbers:

  • Ford/New Holland: 51429499R, 51429499, 81863039, 87554510, 81868798, 81868798R, 83948151

  • Ford OEM Codes: E3NN10B376AB, E3NN10B376AA, E7NN10B376AB, E7NN10B376AA, E7NN10B376BA


Features & Benefits:

✅ Heavy-Duty Construction

  • Cast aluminum housing for heat dissipation and corrosion resistance.

  • High-grade copper windings for efficient power generation.

✅ Reliable Performance

  • Built-in voltage regulator ensures stable 14V output for battery charging.

  • 65A output supports hydraulic systems, lights, and accessories.

✅ Easy Installation

  • Direct bolt-on replacement for Ford tractors—no modifications needed.

  • Sealed bearings for extended lifespan in dusty/wet conditions.

✅ Quality Assurance

  • 100% tested under load before shipment.

  • IP55-rated against dust and water ingress.


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