How to remove and install an Alternator Brush and Voltage Regulator on Toyota Avalon?

Place the alternator on a clean bench. Remove the output terminal nut, insulator, rear cover, and brush holder. Detach the voltage regulator. Measure each brush's length, replace if below minimum. Ensure smooth brush movement. Reinstall the voltage regulator, brush holder, and rear cover. Secure the output terminal insulator with the nut. Reinstall the alternator.

Genuine Toyota Avalon Voltage Regulator

Adjustable Voltage Regulator

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2 Voltage Regulators found

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Toyota Avalon Regulator Assy, Generator
Part Number: 27700-20050
$234.18 MSRP: $335.80
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Product Specifications
- Other Name: Voltage Regulator
- Manufacturer Note: 12V 100A
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2000-2004 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX20L-AEPGKA, MCX20L-AEPGKK, MCX20L-AEPNKA, MCX20L-AEPNKK, MCX20L-AESGKA, MCX20L-AESNKA
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Toyota Avalon Regulator Assy, Generator
Part Number: 27700-46060
$234.99 MSRP: $336.96
You Save: $101.97 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Regulator, Voltage Regulator
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-1999 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX10L-AEPGKA, MCX10L-AEPGKK, MCX10L-AEPNKA, MCX10L-AEPNKK, MCX10L-AESGKA, MCX10L-AESGKK, MCX10L-AESNKA, MCX10L-AESNKK

Toyota Avalon Voltage Regulator

The Voltage Regulator in Toyota Avalon cars was so important as it maintains the varying output of the alternator to protect the battery and other related electrical systems. The regulator keeps the charging voltage between 13.5-14.5 volts by varying the field current in the alternator rotor according to the battery voltage and the demand. Avalon mechanical voltage regulator was earlier used in older Avalon models but got upgraded to electronic solid-state regulators. Compared with these more traditional types of mechanical regulators, these new types can turn on and off far more rapidly and give better control to the charging system. In the recent past, the internal regulators that are linked to the alternator and governed by the PCM are typical in Toyota Avalon vehicles making them more effective and efficient.

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Toyota Avalon Voltage Regulator Parts Questions & Experts Answers

Regulator Assy, Generator
27700-20050
Q: How to remove and install an Alternator Brush and Voltage Regulator on Toyota Avalon?
A: Place the Alternator on a clean bench. Remove the output terminal nut, insulator, rear cover, and brush holder. Detach the voltage regulator. Measure each brush's length, replace if below minimum. Ensure smooth brush movement. Reinstall the voltage regulator, brush holder, and rear cover. Secure the output terminal insulator with the nut. Reinstall the alternator.