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Hella 004241121 14V Voltage Regulator for Alternators

(Porsche 911 1989-98, 944 1984-91, 928 1985-91, 1993-95, 924 1987-88, 968 1992-95; BMW M3 1988-91, 325i 1987-93, 535i 1985-93, 528i 1979-81 + 43 more models)

Part of: Hella Alternator Voltage Regulator

Other options in this family: Hella 5DR 004 243-111 Hella 004241131 Hella 004241151

Manufacturer

Picture for manufacturer Hella

Part Number

004241121
7 reviews
Sale Price

$22.36

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Hella 004241121 is a high-quality 14-volt voltage regulator designed for automotive alternator applications. This precision-engineered component maintains consistent electrical system voltage by controlling the alternator's field current, ensuring optimal battery charging and protecting sensitive electronic components from voltage spikes.

Key Features:

  • 14V output voltage regulation for standard automotive electrical systems
  • Precision voltage control prevents overcharging and undercharging conditions
  • Durable construction designed for harsh under-hood environments
  • Direct replacement for worn or failed OEM voltage regulators
  • Maintains stable voltage output across varying engine speeds and electrical loads

Voltage regulators are critical components in the charging system, working with the alternator to ensure proper battery voltage is maintained while the engine is running. A failing voltage regulator can lead to battery drain, dimming lights, or damage to electrical components. The Hella 004241121 provides reliable voltage regulation to keep your vehicle's electrical system functioning properly.

Products specifications

Fits

Porsche 911 1989-98, 944 1984-91, 928 1985-91, 1993-95, 924 1987-88, 968 1992-95; BMW M3 1988-91, 325i 1987-93, 535i 1985-93, 528i 1979-81, 530i 1975-78, M5 1988, 1991-93, M6 1987-88, 525i 1989-90, 635CSi 1985-89 + 38 more models

Operating voltage [V]

14,1

Rated Voltage [V]

12

Manufacturer Restriction

Bosch

Great price and good company to buy from!

I ordered CV axles from Autoplicity and had them in less than a week! Definitely the best prices for quality product on this item. Will be a return customer for sure!

I was apprehensiveness at first to make a major purchase with Autoplicity due to their extremely low price and lack of reviews. I decided to take the chance and I am very glad I did. I made my order on a Monday morning at 0900 eastern time and my product arrived on Wednesday at 3pm. The item was exactly as described and the most astonishing part is that my purchase was released from the factory less than 45 days ago. I was expecting a model that had been sitting on a shelf for the last year and needed to be updated. That was not the case. I will definitely order from Autoplicity again in the future.

Quick and easy

Very good price. Super quick delivery. Will def. buy from them again. Highley recomend them

Sweetest price on this K&N Filter anywhere! Shipped within 24hrs too. I'm coming back to shop for my car next.

Ordered a cover for my Jeep. Price was extemely fair and shipped the next morning. Plus I like the variety of products that they have.

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