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Details
| Specification | Value |
|---|---|
| Brand | MAHLE |
| MPN | mg820 |
| Category | Power generator |
| Voltage [V] | 28 V |
| Alternator Charging Current [A] | 55 A |
| Bore Diameter [mm] | 10.2 mm |
| Distance of mounting bores [mm] | 80.0 mm |
| Mounting Angle [degrees] | 22 ° |
| Mounting points diameter [mm] | 93.0 mm |
| Packaging length [cm] | 30.5 cm |
| Packaging width [cm] | 23.00 cm |
| Packaging height [cm] | 20.50 cm |
| Net Weight [g] | 6500 g |
OE/OEM numbers (11)
Search by this OE number to find compatible parts
- DAF—0371963
- DAF—0890967
- PERKINS—2871686
- DAF—371963
- MAN—51 26101 7156
- MAN—51261017168
- MAN—51 26101 7190
- MAN—51261017205
- MAN—51 26101 9190
- DAF—636247
- DAF—890967
Where this part fits
Original-fit position for OE 636247. The red ring marks where this part installs on the vehicle.
![SCREW,ENGINE MOUNTING BRACKET TO ENGINE — Opel CASCADA ( 2013 - ) — E ENGINE AND CLUTCH › 4 A20DTH[LBS],A20DTR[LBY] DIESEL ENGINES](/_next/image?url=https%3A%2F%2Fcdn.carparts247.co.uk%2Fdiagrams%2Foem%2Fopel%2Fw13%2F0cd9891f8921c8bb%2F9.webp&w=3840&q=75)
What's in the kit
This kit ships with 3 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 |
|---|---|---|---|
| 10 | MGX 1723 | Rectifier, alternator
| 1 |
| 15 | MGX 1716 | Alternator Regulator
| 1 |
| 18 | MGX 1729KIT | Repair Set, alternator
| 1 |
About this product
Sourced from MAHLE, this power generator (MG 820) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Voltage [V]: 28 V, Alternator Charging Current [A]: 55 A, Bore Diameter [mm]: Brass, Aluminium mm, Pulleys: 50, Rotation Direction: 0 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 0120469038, 0120469527, 0120469562, 0120469592 and 23 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 — 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 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
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (16)
Power generator MAHLE MG 820 — compatible car models
| Manufacturer article number (MPN) | MG 820 |
|---|---|
| OE part numbers | 0371963, 0890967, 2871686, 371963, 51 26101 7156, 51261017168, 51 26101 7190, 51261017205, 51 26101 9190, 636247, 890967 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MAHLE mg820 Power generator. Alternator Charging Current [A]: 55 A. Bore Diameter [mm]: 10,2 mm. Connector/Clamp: 73. Distance of mounting bores [mm]: 80,0 mm. Mounting Angle [degrees]: 22 °. Mounting points diameter [mm]: 93,0 mm. Net Weight [g]: 6500 g. Packaging height [cm]: 20,50 cm
- 1x Power generator
Shipping, returns, warranty
Free UK delivery on orders over £99.00. 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?
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 MAHLE Power generator have?
This MAHLE Power generator has the following specifications: Voltage [V]: 28 V; Alternator Charging Current [A]: 55 A; Bore Diameter [mm]: 10,2 mm; Pulleys: 50; Rotation Direction: 0; Connector/Clamp: 73. 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: 0371963, 0890967, 2871686, 371963, 51 26101 7156, 51261017168, 51 26101 7190, 51261017205 and 3 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 £180.99. 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 0371963?
Yes, this MAHLE Power generator is a direct replacement for OE part number 0371963. 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.
