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Details
| Specification | Value |
|---|---|
| Brand | BOSCH |
| Category | Power generator |
| Voltage [V] | 14 V |
| Alternator Charging Current [A] | 180 A |
| Length [mm] | 191 mm |
| Belt Pulley Ø [mm] | 56.2 mm |
OE numbers (4)
Search by this OE number to find compatible parts
- SEAT / SKODA / VW—03L 903 023 D
- VW—03L 903 023 DX
- SEAT / SKODA / VW—03L 903 024 F
- VW—03L 903 024 FX
Where this part fits
Original-fit position for OE 03L903023D. The red ring marks where this part installs on the vehicle.
What's in the kit
This kit ships with 11 factory-matched components. Each part below is supplied as part of the kit; click any linked MPN to view that component on its own.
| # | Part number | Component | Qty |
|---|---|---|---|
| 1 | F 00M 508 257 | Protective Cap, alternator | 1 |
| 2 | F 00M 581 610 | Rotor, alternator | 1 |
| 3 | F 00M 581 677 | Rotor, alternator | 1 |
| 4 | F 00M 599 400 | Bolt Set, alternator | 1 |
| 5 | F 00M 599 401 | Bearing
| 1 |
| 6 | F 00M 599 411 | Bolt Set, alternator regulator | 1 |
| 7 | F 00M 599 428 | Repair Set, alternator rectifier | 1 |
| 8 | F 00M 599 496 | Repair Set, alternator stator | 1 |
| 9 | F 00M 599 534 | Alternator Freewheel Clutch
| 1 |
| 10 | 0 272 220 805 | Alternator Regulator | 1 |
| 11 | 0 272 220 855 | Alternator Regulator | 1 |
About this product
BOSCH Power generator (0 125 811 028) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Voltage [V]: Nylon V, Alternator Charging Current [A]: 180 A, Length [mm]: 191 mm, Fastening Type: Aluminium, Belt Pulley Ø [mm]: 56, Aluminium mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 0 121 715 071, 0 121 715 171, 0 125 811 027, 03L 903 023 D and 5 more. Matching these numbers confirms a like-for-like replacement with no loss of function. BOSCH 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 BOSCH
Robert Bosch GmbH, founded in 1886 in Stuttgart, Germany, is one of the world's largest automotive parts suppliers. Bosch specialises in braking systems, fuel injection, spark plugs, alternators, and electronic engine management. As an OE supplier to virtually every major car manufacturer, Bosch parts meet or exceed original equipment specifications. With over 130 years of engineering innovation, choosing Bosch means choosing proven reliability backed by extensive research and development.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (5)
Power generator BOSCH 0 125 811 028 — compatible car models
| Manufacturer article number (MPN) | 0 125 811 028 |
|---|---|
| OE part numbers | 03L 903 023 D, 03L 903 023 DX, 03L 903 024 F, 03L 903 024 FX |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
BOSCH 0125811028 Power generator. Alternator Charging Current [A]: 180 A. Alternator Type: 3. Belt Pulley Ø [mm]: 56,2 mm. Fastening Type: 2. Length [mm]: 191 mm. Number of grooves: 6. Pulleys: 3. Recommended additional repairs: 3
- 1x Power generator
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 Power generator 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 Power generator fits. All fitment data is verified through TecDoc.
What specifications does this BOSCH Power generator have?
This BOSCH Power generator has the following specifications: Voltage [V]: 14 V; Alternator Charging Current [A]: 180 A; Length [mm]: 191 mm; Fastening Type: 2; Belt Pulley Ø [mm]: 56,2 mm; Pulleys: 3. Check the full specifications table above for complete details.
What OE part numbers does this Power generator replace?
This Power generator replaces OE part numbers: 03L 903 023 D, 03L 903 023 DX, 03L 903 024 F, 03L 903 024 FX. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Power generator cost?
This BOSCH Power generator is available for £294.99. Power generator prices vary depending on brand, specifications, and vehicle compatibility. BOSCH parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Power generator?
Watch for dimming headlights, warning light on dashboard, dead battery, strange noises from the engine, or electrical accessories malfunctioning.
What tools do I need to replace a Power generator?
Tools needed: socket set (8-17mm), spanner set, serpentine belt tool or breaker bar, multi-meter (for testing charge output), battery terminal clamp remover. Difficulty: Moderate DIY. Safety warning: Disconnect the battery negative terminal before starting. Never disconnect the alternator with the engine running -- voltage spikes will destroy ECU electronics.
Can I use this part as a replacement for OE 03L 903 023 D?
Yes, this BOSCH Power generator is a direct replacement for OE part number 03L 903 023 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 BOSCH 0 125 811 028 the same as the BOSCH 0 121 615 114?
No, while both are Power generator parts, they are different products. The BOSCH 0 125 811 028 has Voltage [V]: 14 V, Alternator Charging Current [A]: 180 A, Length [mm]: 191 mm. The BOSCH 0 121 615 114 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.
