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Genuine Chevrolet Astro Alternator Brush

Alternator Brushes
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1 Alternator Brush found

  • Chevrolet Astro Alternator Brush - 1984462
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    Chevrolet Astro Brush W/Holder

    Part Number: 1984462
    Product Specifications
    • Other Name: BRUSH, Generator Brush; Brush, Brush & Holder, Brush Set
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 1985 Chevrolet Astro | VAN ASTRO | 4 Cyl 2.5L, 6 Cyl 4.3L

Chevrolet Astro Alternator Brush

Chevrolet Astro Alternator Brush keeps the battery full and cabin systems operating by ensuring a steady electrical flow between the spinning rotor and the charging circuit. Each brush is a small block of conductive carbon that presses on the rotor slip rings. As the belt drives the rotor inside the stator windings, the Alternator Brush feeds field current that allows the alternator to create power that diodes convert from AC to DC. In the Astro charging unit, the Alternator Brush is in constant contact with a spring to hold it in place so that vibration or heat will not cause the brush to break contact with the alternator. When the surface of the brush wears down, voltage can fluctuate, causing the battery warning light to go on. Swapping in a fresh Alternator Brush helps restore proper regulation without the expense of a full alternator swap. On earlier Chevrolet models, the system applied a separate or internal regulator to limit output, but on current models, the PCM is applied to change field current. The basic function of the Alternator Brush will be the same, and reliable sliding contact is essential. There have been no drastic style changes for the Astro platform. Carbon composition and spring-loaded holders remain the standard, but there are slight differences in the length of the brushes or the orientation of the lead wire between Chevrolet production years. Whichever year of Astro you drive, timely inspection of brush length can prevent undercharging and keep headlights bright.

Each OEM Chevrolet Astro Alternator Brush we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Astro Alternator Brush Parts Questions & Experts Answers

  • Chevrolet Astro Alternator Brush - 1984462 Brush W/Holder Brush W/Holder
    1984462
    Q: How to replace alternator Brush on Chevrolet Astro?
    A:
    The mentioned procedure is only applicable to the SI type Alternators while the CS types have riveted housings and are not disassembled. The first step is to take out the alternator from the vehicle. Thereafter, make scribe or paint marks on the front and rear end frame housings of the alternator to enable easy reassembly. Use a scribe or paint pen to mark the drive end frame and rectifier end frame assemblies before they are separated into two halves. Afterwards, remove four through bolts which hold front and rear end frames together, then separate drive end frame from rectifier end frame. Carefully separate the drive end frame from rectifier end frame assemblies. After that, remove nuts retaining stator leads to rectifier bridge and separate stator from end frame. Then, remove nuts that retain stator leads to rectifier bridge so as to remove stator. Following that, undo screw attaching diode trio on the end frame and remove trio. Remove screws attaching resistor (not used on all models), brush holder and voltage regulator on the end frame; then take off brush holder and voltage regulator. When removing brush holder, resistor (if equipped) and voltage regulator from the end frame you should also take away screws which attach them. After unscrewing the brush holder, resistor (if any) along with voltage regulator held by two other screws at one side of case will be removed-just do it this way for a majority of vehicles of this type. Next slip brush retainer off brush holder thereby removing brushes from it; then withdraw springs off brush holder also. Re-installation shall be opposite of what has been stated earlier in this section except: Place first brush closest to rearward most position within its respective slot in order to retain it; push metal clip through hole behind rotor shaft until it comes out opposite side where it prevents next brush coming out while both are held together by metal clip. However, this can only be released together with the front and rear end frames after they have been bolted back. Throughout installation, a paper clip similar to this one will be used to hold brushes in position through the hole on the end frame located around rotor shaft.

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1985 Alternator Brush