How to remove and replace the Alternator Brush and Voltage Regulator on Toyota MR2?

Locate the alternator attaching bolts, take out those bolts and set down the alternator in an efficient workstation. Removal of three nuts attached to the rear end cover, a nut and terminal insulator, and the rear end cover. Next, teh screws that secure the voltage regulator and the brush holder can be withdrawn after the removal of the rear end cover. Take off the brush holder and the regulator of the rear end frame. If only the regulator is involved, then fitting a new one, reassembling the alternator then fitting it on the engine should be done. If the brushes are being replaced, then, ensure that each brush is measured from the point where it is exposed to the outside and if the brush is shorter than the minimum exposed length all the brushes should be replaced. Make certain that each brush, slides easily in the brush holder. In fixing the brush holder, one has to press the brush on a small end of the screw driver to ensure that the shaft is free. Following this, secure the screws of the voltage regulator or the brush holder in the rear end frame. Fix the rear end cover and use three nut screws to tightly fit over the respective locations. Last of all, screws the terminal insulator and unto and again bolts the alternator onto its rightful place.

Genuine Toyota MR2 Voltage Regulator

Adjustable Voltage Regulator

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6 Voltage Regulators found

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Toyota MR2 Generator Regulator Assembly
Part Number: 27700-74030
$238.75 MSRP: $342.36
You Save: $103.61 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Regulator Assy, Generator; Regulator, Voltage Regulator
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1992-1995 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
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Toyota MR2 Generator Regulator Assembly
Part Number: 27700-63021
$238.48 MSRP: $341.97
You Save: $103.49 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Regulator Assy, Generator
- Replaced by: 27700-70030
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1985-1989 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA
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Toyota MR2 Generator Regulator Assembly
Part Number: 27700-46030
$172.04 MSRP: $244.59
You Save: $72.55 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Regulator Assy, Generator
- Manufacturer Note: TYPE A:REFER TO ILLUSTRATION
- Replaced by: 27700-72090
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1992-1993 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
View related parts
Toyota MR2 Generator Regulator Assembly
Part Number: 27700-74010
$172.04 MSRP: $244.59
You Save: $72.55 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Regulator Assy, Generator
- Manufacturer Note: W(POWER STEERING)
- Replaced by: 27700-72090
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1990-1993 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
View related parts
Toyota MR2 Generator Regulator Assembly
Part Number: 27700-70030
$238.48 MSRP: $341.97
You Save: $103.49 (31%)
Product Specifications
- Other Name: Regulator Assy, Generator; Bearing, Regulator, Voltage Regulator
- Replaces: 27700-63021, 27700-63020, 27700-72040
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1985-1993 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L, 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 4AGELC, 4AGZE, 4AGZE; AW11L-WCMQFA, 5SFE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA, SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
View related parts
Toyota MR2 Generator Regulator Assembly
Part Number: 27700-64021
Product Specifications
- Other Name: Regulator Assy, Generator
- Manufacturer Note: 12V 70A
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1987-1989 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA

Toyota MR2 Voltage Regulator

The electrical system of the Toyota MR2 is protected by the Voltage Regulator, which restricts alternator output voltage. It keeps track of battery voltage and overall electrical demands. It then raises or lowers the alternator rotor field current to maintain approximately 13.5 to 14.5 volts. This prevents overcharging when the battery is full and boosts output when components draw power. This stabilizes the electric supply by instantly reinforcing the magnetic field when the system voltage drops and weakening it when the system voltage exceeds the set point as required for lights, ignition, and other electronics. This means the component itself is capable of working when the engine is running without any input from the driver. When utilized on a regular basis, the Voltage Regulator allows the battery to work more easily, which in turn reduces strain on the wiring and attached components. As a result, Toyota's electrical architecture remains reliable. This Voltage Regulator is utilized to regulate the alternator in every Toyota MR2. It is also a similar type of Voltage Regulator applied in all MR2s. System checks done regularly can verify the Voltage Regulator keeps the Toyota MR2 charging system within specification. It is thus necessary for reliable functioning to have a working Voltage Regulator.

If you are in demand for superior quality and affordable OEM Toyota MR2 Voltage Regulator, then shop with us! We own a wide range of the reduced-priced genuine Toyota MR2 Voltage Regulator. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota MR2 Voltage Regulator Parts Questions & Experts Answers

Generator Regulator Assembly
27700-63021
Q: How to remove and replace the Alternator Brush and Voltage Regulator on Toyota MR2?
A:
Locate the Alternator attaching bolts, take out those bolts and set down the alternator in an efficient workstation. Removal of three nuts attached to the rear end cover, a nut and terminal insulator, and the rear end cover. Next, teh screws that secure the voltage regulator and the brush holder can be withdrawn after the removal of the rear end cover. Take off the brush holder and the regulator of the rear end frame. If only the regulator is involved, then fitting a new one, reassembling the alternator then fitting it on the engine should be done. If the brushes are being replaced, then, ensure that each brush is measured from the point where it is exposed to the outside and if the brush is shorter than the minimum exposed length all the brushes should be replaced. Make certain that each brush, slides easily in the brush holder. In fixing the brush holder, one has to press the brush on a small end of the screw driver to ensure that the shaft is free. Following this, secure the screws of the voltage regulator or the brush holder in the rear end frame. Fix the rear end cover and use three nut screws to tightly fit over the respective locations. Last of all, screws the terminal insulator and unto and again bolts the alternator onto its rightful place.