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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
Voltage Regulator | Mk4 | B5 | Mk1 TTThe voltage regulator maintains a constant voltage level by controlling the output of the alternator. If you're alternator is failing to charge your battery or run the electrical systems of your vehicle, the internal diodes of the regulator may be faulty. A good way to check for a faulty voltage regulator is to use a digital multimeter on the battery, with the engine running, to read the charging voltage. If voltage is not constant around 13 to 14
The voltage regulator maintains a constant voltage level by controlling the output of the alternator. If you're alternator is failing to charge your battery or run the electrical systems of your vehicle, the internal diodes of the regulator may be faulty. A good way to check for a faulty voltage regulator is to use a digital multimeter on the battery, with the engine running, to read the charging voltage. If voltage is not constant around 13 to 14 volts, chances are the voltage regulator has gone out. Replace yours to restore proper operation to your charging system.This product fits:
- 1999.5-2005 Golf/Jetta
- 1998-2005 Passat
- 1998-2006 Audi TT
Part #'s
038-903-803-E / 038903803 E / 038 903 803 E / 038903803E
038-903-803-EX / 038903803 EX / 038 903 803 EX / 038903803EX
389-038-03E-X / 38903803E X / 389 038 03E X / 38903803EX
Bosch Part #"s
198-6AE-012-4 / 1986AE012 4 / 198 6AE 012 4 / 1986AE0124
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Great golf shirt!
Size: Medium, Color: White+pocket
Quality fabric. Very comfortable shirt for golfing. Accurate sizing. Washes nicely.
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Reviewed in the United States on October 28, 2025
★★★★★ 1
Pocket is phony.
Size: Large, Color: Grey
Pocket is phony.
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Reviewed in the United States on March 10, 2026
★★★★★ 4
Fake pockets
Size: 3X-Large, Color: Light Grey
Fake zippers with no pockets, but nice shirt.
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Reviewed in the United States on February 22, 2026
★★★★★ 5
Nice Men's Shirt
Size: X-Large, Color: Grey
My husband loves this shirt. It is comfortable and fits him perfectly!
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Reviewed in the United States on March 20, 2026
★★★★★ 3
read the fine print
Size: X-Large, Color: Black
I really need to learn to read the small print. That pocket line on the chest turned out to be a fake pocket and the actual; zipper on the sleeve is also a fake pocket; my bad but in my defense I'd never dreamed that anyone would put either on a shirt. Also my search term was men's "cotton shirt w/ pocket shirt" and it brought up this polyester wonder. But at least it fits well and seems well made.
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Reviewed in the United States on November 20, 2025