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Genuine Volkswagen Voltage Regulators
Alternator Regulators- Select Vehicle by Model
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22 Voltage Regulators found
Volkswagen Voltage Regulator Part Number: 05L-903-803
$36.98 MSRP: $51.37You Save: $14.39 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
Volkswagen Voltage Regulator Part Number: 055-903-803
$64.40 MSRP: $90.20You Save: $25.80 (29%)Product Specifications- Other Name: Regulator
Volkswagen Voltage Regulator Part Number: 036-903-803
$68.87 MSRP: $96.45You Save: $27.58 (29%)Product Specifications- Other Name: Regulator; Rectifier
Volkswagen Voltage Regulator Part Number: 037-903-803-X
$82.11 MSRP: $115.00You Save: $32.89 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
- Replaces: 037-903-803
Volkswagen Voltage Regulator Part Number: 078-903-803-A
$100.67 MSRP: $141.00You Save: $40.33 (29%)Product Specifications- Other Name: Regulator
Volkswagen Voltage Regulator Part Number: 028-903-803-FX
$89.57 MSRP: $125.00You Save: $35.43 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
- Replaces: 028-903-803-F
Volkswagen Voltage Regulator Part Number: 038-903-803-E
$105.01 MSRP: $147.07You Save: $42.06 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator; Voltage Regulator
Volkswagen Voltage Regulator Part Number: 048-903-803
$166.59 MSRP: $233.32You Save: $66.73 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
- Replaces: 028-903-803-L
Volkswagen Voltage Regulator Part Number: 068-903-803-DX
$123.17 MSRP: $172.07You Save: $48.90 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
- Replaces: 068-903-803-D
Volkswagen Voltage Regulator Part Number: 038-903-803-F
$145.18 MSRP: $203.33You Save: $58.15 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
Volkswagen Voltage Regulator Part Number: 03G-903-803
$199.91 MSRP: $279.99You Save: $80.08 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
Volkswagen Voltage Regulator Part Number: 03L-903-803-F
$209.43 MSRP: $293.32You Save: $83.89 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator; Voltage Regulator
Volkswagen Voltage Regulator Part Number: 078-903-803-D
$166.60 MSRP: $233.33You Save: $66.73 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
Volkswagen Voltage Regulator Part Number: 03L-903-803-A
$171.15 MSRP: $239.70You Save: $68.55 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
Volkswagen Voltage Regulator Part Number: 05E-903-803
$84.57 MSRP: $118.45You Save: $33.88 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
Volkswagen Voltage Regulator Part Number: 070-903-803-E
$237.99 MSRP: $333.32You Save: $95.33 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
- Replaces: 070-903-803-B
Volkswagen Voltage Regulator Part Number: 028-903-803-DX
$221.33 MSRP: $309.99You Save: $88.66 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator; Voltage Regulator
- Replaced by: 028-903-803-D
Volkswagen Voltage Regulator Part Number: 059-903-803-G
$234.42 MSRP: $328.31You Save: $93.89 (29%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
- Replaces: 06E-903-803-A, 06E-903-803-B
Volkswagen Voltage Regulator Part Number: 077-903-803-C
$314.14 MSRP: $429.15You Save: $115.01 (27%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
Volkswagen Voltage Regulator Part Number: 079-903-803
$314.14 MSRP: $429.15You Save: $115.01 (27%)Ships in 1-2 Business DaysProduct Specifications- Other Name: Regulator
- Replaces: 059-903-803-F
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1-20 of 22 Results
Volkswagen Voltage Regulators
The Volkswagen Voltage Regulators are applied to maintain stability in every VW charging system and also protect the battery by maintaining the alternator output close to 14 volts. Born in Wolfsburg in 1937, VW set its eyes on a people car, and the Beetle and Type 2 van proved that simple shape, solid build, and clever packaging can win the world's heart. Modern VW creations use that heritage to build on with TSI turbo engines, direct fuel injection, and the flexible MQB platform that allows different models to share parts while saving weight. Drivers are loving digital cockpits, touchscreen MIB infotainment, park assist, and an increasing family of electric ID vehicles, all wrapped in clean design that is both familiar and fresh. These advances require a continuous supply of electricity, and that is where Voltage Regulators come in. Each unit is constantly sensing system demand and feeding just enough current to the rotor field to smooth out spikes that could dim LEDs or scramble audio units, keeping the brand ready for morning starts and night drives alike. Solid-state construction pulses thousands of times per second, so lamps shine evenly and batteries avoid overcharge, regardless of whether the car is using gasoline or electrons. Compact size, robust electronics, and integration with engine management make the regulators a quiet hero that supports the entire lineup without fuss.
Buying OEM parts is a smart move to keep your long-term repair costs low. These components are built to last because VW uses such strict factory standards. At VWPartsGiant.com, it is easy to find genuine Volkswagen Voltage Regulators at prices that actually beat the competition. You get a real manufacturer's warranty with every single part, so you know your purchase is safe. Plus, forget about return headaches since our policy is easy and worry-free. We ship your order fast, too. If you have questions, our team of parts experts is ready to help. Why wait? Start shopping now!
Volkswagen Voltage Regulators Parts and Q&A
- Q: How do Voltage Regulators function in the removal and inspection of the alternator and its components on Volkswagen Passat?A:Take out the alternator and put it on a clean working surface with the pulley facing down. Take the retaining screws out, find the clips and remove the plastic cover on the rear of the alternator. Unscrew the screws on the voltage regulator/brush assembly and unattach the unit of the alternator. Check the length of the brush contact free and measure it against the given value; change the unit in case of worn-out below the minimum length used as a unit of measurement. Check the contact of the brush contacts on the end of the alternator shaft; and this can be slight but can be wiped with crocus cloth, but in cases where it is very dirty, has melted or pitted the alternator can be changed. The procedure of installation is in the opposite sequence of the one of removing, and when the alternator is installed, verify charging voltage.
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