How to Replace the Alternator Brush and Voltage Regulator on an Acura Integra?

The replacement of brushes and regulator on Mitsubishi alternators which power Integrala models needs significant disassembly work so it should be handled only by qualified automotive repair facilities. The replacement of Nippondenso alternator's brushes and regulator does not require complete overhauling of the unit. Take the alternator to a dealer service department or other repair shop for either rebuilding or exchanging it for a rebuilt unit if the replacement of brushes and regulator cannot solve the issue. Start the process by taking out the alternator then position it on a clean work surface. The three rear cover nuts and nut and terminal insulator require removal to detach the rear cover. You need to detach the rear end frame brush holder with its retaining screws then extract it from position. A measurement of brush exposure should determine its length compared to the minimum standard before conducting a brush replacement. Check that all brush handles glide easily in the brush holder structure. Start by removing the brushes before the regulator can be detached by removing its mounting screws. The installation process starts by reversing removal steps and entailing the brush holder to be installed through brush depression with a screwdriver to clear its shaft.

Genuine Acura Integra Alternator Brush

Alternator Brushes

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Acura Integra Brush Holder Assembly
Part Number: 31105-PR7-A01
$40.16 MSRP: $56.02
You Save: $15.86 (29%)
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Product Specifications
- Other Name: Holder Assembly, Brush ; Brush & Holder; Brush & Holder, Brush Holder, Brushe
- Replaces: 31105-PT0-003
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura Integra Brush Holder Assembly
Part Number: 31140-62K-Z01
$15.86 MSRP: $22.12
You Save: $6.26 (29%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura Integra Holder Assembly , Brush
Part Number: 31105-RL0-G01
$14.02 MSRP: $19.55
You Save: $5.53 (29%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura Integra Brush Holder Assembly
Part Number: 31105-PZ1-003
$40.16 MSRP: $56.02
You Save: $15.86 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Holder Assembly, Brush
- Replaces: 31105-PD1-024, 31105-PD1-014, 31105-PD1-034
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura Integra Holder Assembly, Alternator Brush
Part Number: 31105-PD1-014
$40.16 MSRP: $56.02
You Save: $15.86 (29%)
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Product Specifications
- Replaced by: 31105-PZ1-003
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura Integra Holder Assembly , Brush
Part Number: 31105-6PV-305
$27.87 MSRP: $38.87
You Save: $11.00 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: HOLDER ASSY., BRUSH
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura Integra Brush
Part Number: 31144-P01-003
Product Specifications
- Other Name: Brushes; Brushe
- Replaces: 31144-PD1-004
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura Integra Holder Assembly, Alternator Brush
Part Number: 31105-PE9-942
Product Specifications
- Replaced by: 31105-PT0-B91
- Warranty: This genuine part is guaranteed by Acura's factory warranty.

Acura Integra Alternator Brush

The Acura Integra Alternator Brush maintains constant electrical flow between the turning rotor and the charging circuit to keep the battery charged and the lights, audio, and computers on as long as the engine is running. Each Alternator Brush is made of conductive carbon and fitted into the rear part of the alternator case, pressing against slip rings with spring tension and allowing the current to pass as the rotor rotates. As the rotor in the stator windings is rotated by spinning the belt-driven pulley, the magnetic field it produces generates AC power, which the rectifier converts to DC. The Alternator Brush is the moving point of entry to that energy. Early Acura Integra models were fitted with these brushes together with separate or internally mounted voltage regulators, but later cars delegate the hand control to the powertrain control module. The Alternator Brush design itself remains largely unchanged, meaning that replacement is still a relatively simple process: battery disconnection, removal of the alternator, undoing of the back cover, exposure of brush holders, replacement, and reassembly. Since brushes wear out earlier than others, replacing a worn Alternator Brush is a low-cost solution to regaining full charging capability and extending the life of the alternator, as well as saving modern Acura and current Integra drivers the costs of replacing a unit.

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Acura Integra Alternator Brush Parts Questions & Experts Answers

Brush Holder Assembly
31105-PR7-A01
Q: How to Replace the Alternator Brush and Voltage Regulator on an Acura Integra?
A:
The replacement of brushes and regulator on Mitsubishi Alternators which power Integrala models needs significant disassembly work so it should be handled only by qualified automotive repair facilities. The replacement of Nippondenso alternator's brushes and regulator does not require complete overhauling of the unit. Take the alternator to a dealer service department or other repair shop for either rebuilding or exchanging it for a rebuilt unit if the replacement of brushes and regulator cannot solve the issue. Start the process by taking out the alternator then position it on a clean work surface. The three rear cover nuts and nut and terminal insulator require removal to detach the rear cover. You need to detach the rear end frame brush holder with its retaining screws then extract it from position. A measurement of brush exposure should determine its length compared to the minimum standard before conducting a brush replacement. Check that all brush handles glide easily in the brush holder structure. Start by removing the brushes before the regulator can be detached by removing its mounting screws. The installation process starts by reversing removal steps and entailing the brush holder to be installed through brush depression with a screwdriver to clear its shaft.