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Identification & Specifications

Alternator is color-ink stamped with "Motorcraft" trademark. Color Stamp is code for rated amperage output. Rated amperage is also stamped on end frame (40A, 60A, etc.). Color code is as follows:

Alternator Identification

Application Amperage @15V Rated Output Speed (Engine RPM)
Orange 40 2900
Green 60 2900
Black (Rear Term.) 65 (1)
Black (Side Term.) 70 (2)1640
Red 100 (2)2900
(1) Not available from manufacturer.
(2) Rated cold output.
SPECIFICATIONS

Alternator Specification
Field Current at 12 Volts (All) 4.0 Amps.
Slip Rings (All)  
  Minimum Diameter 1.22"
  Maximum Runout .0005"
Brush Length Wear Limit 1/4"
Pulley Nut Torque 60-100 Ft. Lbs.