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Premium Quality Alternator Parts - Alternator Repair Kits - Starter Parts - Starter Rebuild Kits.

We stock more than 10,000 part numbers for the fallowing alternator and starter manufacturers
Bosch - Delco - Denso - Ford - Hitachi - Leece-Neville - Lucas - Magneton - Mando - Mitsuba - Mitsubishi - Motorola - Paris-Rhone - Prestolite - Valeo


We Stock ALL The Small Parts!


Automotive & Light Truck | Commercial & Heavy truck | Agricultural & Industrial | Marine & Power Sports

Serving the professional rebuilder and the do-it-yourselfer


You will need the part number on the part, alternator or starter or a vehicle application
 to locate parts and rebuild-repair kits.
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Your #1 Wholesale Source!

Premium Quality Alternator Parts - Alternator Repair Kits - Starter Parts - Starter Rebuild Kits.

We stock much more than just bearings and brushes...

Starter Armatures, Ball Bearings, Alternator Brush Holder Assemblies, Starter Brush Holder Assemblies, Alternator Brushes, Starter Brushes, Starter Bushings, Alternator Diode Trios, Starter Drive Clutches, Alternator Fans, Starter Field Coils, Starter Gaskets, Starter Grommets, Alternator Hardware, Starter Hardware, Needle Roller Bearings, Starter Oil Seals, Starter O-Rings, Starter Pinion Gears, Alternator Pulleys, Alternator Rectifiers, Alternator Regulators, Alternator Regulator/Rectifier Assemblies, Alternator Retaining Rings, Alternator Rotors, Alternator Rotor Slip Rings, Seals, Starter Shift Levers, Snap Rings, Starter Solenoids, Starter Solenoid Contacts, Starter Solenoid Plungers, Starter Drives, Starter Stationary Gears, Alternator Stators, Alternator Terminal Blocks, Terminals, Alternator Tolerance Rings.

Servicing the fallowing manufacturers
Bosch - Delco - Denso - Ford - Hitachi - Leece-Neville - Lucas - Magneton - Mando - Mitsuba - Mitsubishi - Motorola - Paris-Rhone - Prestolite - Valeo

Automotive & Light Truck | Commercial & Heavy Truck | Agricultural & Industrial | Marine & Power Sports
Serving the professional rebuilder and the home do-it-yourselfer



Alternator & Starter Q&A

Alternator Q&A

What is an alternators amperage output at idle?

Alternators operate on a supply and demand situation and do not have a set amperage output at idle.


What should the system voltage output be?
On a 12 volt system the high cutout voltage should be between 14.3 - 14.9 depending on the voltage regulator installed on your alternator. This voltage will slowly drop off until the battery is fully charged and the electrical load is low.
Why is my alternator not showing a charge?
  • Worn out brushes
  • A failed voltage regulator.
  • Check the wiring at the voltage regulator plug, refer to your service manual for plug connections and what they should be.
  • Battery main feed line or alternator ignition charge fuse
  • Diode failure in the rectifier.
  • Defective voltage regulator.
  • Charge lamp burnt out.

Why is my alternator charging but light stays on?
  • Bad diode in the alternator.
  • Bad diode trio in the alternator.
  • No power to alternator ignition charge line.

Why does my battery go dead after a few days?
  • Bad battery.
  • Electrical system drain.
  • Slipping belt.
  • Alternator state of charge too low to maintain battery.
  • Bad diode in alternator rectifier.

Why is my alternator over charging?

Defective voltage regulator.


My battery discharges when headlights are turned on?
  • Loose or corroded battery connections.
  • Bad battery.
  • Bad alternator.

My headlights/dash lights dim or pulse at idle?
  • Engine Idle speed low.
  • Alternator output too low and not meeting electrical demand.

Why is my high output alternator not charging at idle?
  • High output alternators must spin faster than a standard alternator to keep the field engaged.
  • Changing the pulley to a smaller diameter will usually correct this.

Will a high output alternator or upgrade kit work with the factory electrical system?

The higher amperage produced by the alternator will not pose any problems to the vehicle’s electrical system, but too high in voltage can.


What modifications are needed when upgrading to a high amp alternator or upgrade kit?

Due to the increase in amperage, upgrading the alternator’s battery feed cable and vehicles primary ground cables is recommended.


Starter Q&A

Why does my starter just click?
  • Battery voltage too low.
  • Bad ground and or positive battery connection.
  • Solenoid internal contacts worn.
  • Starter motor brushes worn and not making contact with armature.
  • Armature brush contact surface extremely dirty "contaminated with dirt, grease or oil".

Why does my starter cranks slow?
  • Battery voltage too low.
  • Bad ground or positive battery connection.
  • Armature brush contact surface extremely dirty "contaminated with dirt, grease or oil".

Why does the starter spin and not crank the engine?
  • Starter drive worn out.
  • Bent or broken starter shift lever.
  • Teeth missing in flywheel.

Why doesn't my starter crank when the engine is hot?
  • Open circuit in solenoid.
  • Open circuit in starter motor armature or field coil windings.


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