- Shop with confidence: competitive prices, exclusive deals, and delivery perks.
- Need it quickly? We dispatch fast-moving parts daily. Check delivery options.
- Swap or return items within the standard return period with a simple process.
- Questions about fitment or orders? Our support team is ready to help.
Similar products
Customers also bought
Details
| Specification | Value |
|---|---|
| Brand | MAHLE |
| MPN | mg521 |
| Category | Power generator |
| Voltage [V] | 14 V |
| Alternator Charging Current [A] | 65 A |
| Bore Diameter [mm] | 12.2 mm |
| Belt Pulley ร [mm] | 90 mm |
| Distance of mounting bores [mm] | 70.0 mm |
| Distance of mounting bores [mm] | 75.0 mm |
| Mounting points diameter [mm] | 85.0 mm |
| Distance from belt pulley to alternator [mm] | 58.0 mm |
| Packaging length [cm] | 24.8 cm |
| Packaging width [cm] | 18.60 cm |
| Packaging height [cm] | 17.50 cm |
| Net Weight [g] | 5700 g |
OE/OEM numbers (21)
Search by this OE number to find compatible parts
- FIATโ0000004787671
- LANCIAโ0000004849157
- FIATโ0004765934
- FIATโ2943925
- FIAT / LANCIAโ46231758
- MAGIRUS-DEUTZโ476 3249
- FIATโ4765931
- FIATโ4765933
- FIATโ4765934
- FIATโ4787668
- FIATโ4787671
- FIATโ4798447
Where this part fits
Original-fit position for OE 4765934. The red ring marks where this part installs on the vehicle.
What's in the kit
This kit ships with 12 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 | MGX 398 | Fan Wheel, alternator
| 1 |
| 2 | MGX 614 | Cap
| 1 |
| 3 | MGX 336 | Drive Bearing, alternator
| 1 |
| 4 | MGX 301 | Stator, alternator
| 1 |
| 5 | MGX 1174/S | Screw
| 1 |
| 6 | MGX 374KIT | Rotor, alternator
| 1 |
| 7 | MGX 505KIT | Belt Pulley, alternator
| 1 |
| 9 | MGX 750 | Drive Bearing, alternator
| 1 |
| 10 | MGX 1145KIT | Rectifier, alternator
| 1 |
| 11 | MGX 1238 | Cap
| 1 |
| 13 | MGX 338KIT | Protective Cap, alternator
| 1 |
| 15 | MGX 169 | Alternator Regulator
| 1 |
About this product
MAHLE Power generator (MG 521) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications โ Voltage [V]: Nylon V, Alternator Charging Current [A]: 65 A, Bore Diameter [mm]: Zinc, Aluminium mm, Number of ribs: Aluminium, Belt Pulley ร [mm]: 90 mm โ are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with ALFA ROMEO, FIAT, LANCIA vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 0000004787671, 0000004849157, 0004765934, 0120489152 and 49 more. Matching these numbers confirms a like-for-like replacement with no loss of function. MAHLE 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 โ 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 โ 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 โ and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About MAHLE
MAHLE, founded in 1920 in Stuttgart, Germany, is a global leader in engine components and filtration systems. MAHLE specialises in pistons, cylinder liners, gaskets, turbocharger components, oil filters, air filters, and fuel filters. As an OE supplier to nearly every car and truck manufacturer worldwide, MAHLE products are engineered to exact factory specifications. Trusted by professional workshops and racing teams alike, MAHLE delivers outstanding engine performance and filtration efficiency across millions of applications.
Suitable cars
Equivalent products (32)
Show all 32 OE numbers
Power generator MAHLE MG 521 โ compatible car models
| Car models | ALFA ROMEO: 75 (162); FIAT: CROMA (154), DUCATO Panorama (280), DUCATO Panorama (290), DUCATO Platform/Chassis (290), DUCATO Van (290); LANCIA: THEMA (834), THEMA SW (834) |
|---|---|
| Engines | 1.6 (162.B2B, 162.B2C); 2500 D; 1.9 D; 1.9 TD; 2500 Turbo D (834D); 2500 Turbo DS (834AE) |
| Year of manufacture | 1982-1996 |
| Manufacturer article number (MPN) | MG 521 |
| OE part numbers | 0000004787671, 0000004849157, 0004765934, 2943925, 46231758, 476 3249, 4765931, 4765933, 4765934, 4787668, 4787671, 4798447, 4800504, 4808506, 4808510, 4808511, 4808517, 4808518, 4849157, 77452410 (+1 more) |
Compatibility check
Loading vehicle dataโฆ
Please wait while we load vehicle compatibility information.Description and what's included
MAHLE mg521 Power generator. Alternator Charging Current [A]: 65 A. Belt Pulley ร [mm]: 90 mm. Bore Diameter [mm]: 12,2 mm. Distance from belt pulley to alternator [mm]: 58,0 mm. Distance of mounting bores [mm]: 70,0 mm. Distance of mounting bores [mm]: 75,0 mm. Mounting points diameter [mm]: 85,0 mm. Net Weight [g]: 5700 g
- 1x Power generator
Shipping, returns, warranty
Free UK delivery on orders over ยฃ99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- 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?
This Power generator fits ALFA ROMEO, FIAT, LANCIA vehicles. Use the vehicle selector at the top of the page to check exact compatibility โ enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this MAHLE Power generator have?
This MAHLE Power generator has the following specifications: Voltage [V]: 14 V; Alternator Charging Current [A]: 65 A; Bore Diameter [mm]: 12,2 mm; Number of ribs: 2; Belt Pulley ร [mm]: 90 mm; Pulleys: 1. 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: 0000004787671, 0000004849157, 0004765934, 2943925, 46231758, 476 3249, 4765931, 4765933 and 13 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Power generator cost?
This MAHLE Power generator is available for ยฃ169.99. Power generator prices vary depending on brand, specifications, and vehicle compatibility. MAHLE 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 0000004787671?
Yes, this MAHLE Power generator is a direct replacement for OE part number 0000004787671. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
