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Details
| Specification | Value |
|---|---|
| Brand | HELLA |
| MPN | 5dr004246-341 |
| Voltage [V] | 12 V |
| Manufacturer Restriction | Bosch |
| Operating voltage [V] | 14 V |
OE numbers (2)
Search by this OE number to find compatible parts
- AUDI / VW—028 903 803 D
- MACK—4381 66706
Where this part fits
Original-fit position for OE 028903803D. The red ring marks where this part installs on the vehicle.
About this product
HELLA Alternator Regulator (5DR 004 246-341) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Voltage [V]: Zinc V, Manufacturer Restriction: Bosch, Operating voltage [V]: Nylon V — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 004 246-341, 004246341, 0 123 310 023, 0 123 310 048 and 34 more. Matching these numbers confirms a like-for-like replacement with no loss of function. HELLA is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
About HELLA
HELLA, founded in 1899 in Lippstadt, Germany, is a global automotive lighting and electronics specialist now operating as FORVIA HELLA. HELLA specialises in headlamps, rear lights, signal lighting, sensors, actuators, and electronic control units. As an OE supplier to virtually all major car manufacturers, HELLA products represent the cutting edge of automotive lighting and electronic technology. With 125+ years of innovation in vehicle illumination and electronics, HELLA is the definitive choice for high-quality lighting and electronic component replacements.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (36)
Show all 36 OE numbers
Alternator Regulator HELLA 5DR 004 246-341 — compatible car models
| Manufacturer article number (MPN) | 5DR 004 246-341 |
|---|---|
| OE part numbers | 028 903 803 D, 4381 66706 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
HELLA 5dr004246-341 . Manufacturer Restriction: Bosch. Operating voltage [V]: 14 V. Voltage [V]: 12 V
- 1x Alternator Regulator
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Alternator Regulator compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Alternator Regulator fits. All fitment data is verified through TecDoc.
What specifications does this HELLA Alternator Regulator have?
This HELLA Alternator Regulator has the following specifications: Voltage [V]: 12 V; Manufacturer Restriction: Bosch; Operating voltage [V]: 14 V. Check the full specifications table above for complete details.
What OE part numbers does this Alternator Regulator replace?
This Alternator Regulator replaces OE part numbers: 028 903 803 D, 4381 66706. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Alternator Regulator cost?
This HELLA Alternator Regulator is available for £40.99. Alternator Regulator prices vary depending on brand, specifications, and vehicle compatibility. HELLA parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Alternator Regulator?
Regular inspection of your Alternator Regulator is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Alternator Regulator?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Alternator Regulator fitted by a professional mechanic.
Can I use this part as a replacement for OE 028 903 803 D?
Yes, this HELLA Alternator Regulator is a direct replacement for OE part number 028 903 803 D. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the HELLA 5DR 004 246-341 the same as the HELLA 5DR 004 241-121?
No, while both are Alternator Regulator parts, they are different products. The HELLA 5DR 004 246-341 has Voltage [V]: 12 V, Manufacturer Restriction: Bosch, Operating voltage [V]: 14 V. The HELLA 5DR 004 241-121 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
