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.