8 Fairfax St SE
NAPA Auto Parts Genuine Parts Company
8 Fairfax St SE
Leesburg,  VA  20175
(703) 777-2055
Reserve Online Participant
Store Hours
Mon-Fri:7:30 AM-7:00 PM
Sat:8:00 AM-5:00 PM
Sun:9:00 AM-5:00 PM
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Alternator - Remfd - Standard 145 A
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Alternator - Remfd - Standard 145 A

Part #: RAY 2139559
Line: NAPA Power Premium Plus
Requested quantity is not available. Please update the quantity below.

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Features & Benefits

Warranty: Standard : Warrantied to be free of defects in workmanship/materials for up to the lifetime of your vehicle. Please review the specific criteria pertaining to this warranty in the NAPA PDF warranty statement. This warranty is not transferable.


Bearings: 100% New Electric Motor Quality. Extreme Temperature Grease & High Temperature Double Lip Seal.

  • Rotor & Stator Are Electronically Tested For Maximum Output & Insulation Integrity.
  • Slip Rings Are Precision Polished, Turned Or Replaced.
  • Rectifier 100% Tested w/ The Latest Test Equipment Or Replaced w/ A New Rectifier.
  • All Brushes Replaced w/ 100% New High Quality Brushes.
  • Supplied with Decoupler Pulley


Ground Type Negative
Fan Type Internal
Sub Brand Power Plus
VMRS Code 031001000
Alternator Mounting Type J180 Long Hinge,J180 Short Hinge
Regulator Type External
Case Color Polished Aluminum
Amperage Rating 145 A
Voltage 12 V
Terminal Quantity 50
Case Material Aluminum
SDS Required No
Pulley Belt Type Serpentine
Pulley Included Yes
Pulley Outside Diameter 49 mm
Mounting Hardware Included Yes
External Fan Included No
Weight 14 lbs
Brand NAPA
External Regulator Included No
Contents (1) Alternator Assembly
Alternator Clock Position 9:00 o'clock
Contains VOCs No
Grooved Yes
One Wire Capable No
Rotation Direction Clockwise
Alternator Series 33SI
Pulley Groove Quantity 6
Brushless No

Safety Information