Mercedes Sprinter Alternator 280A – Valeo | VS30 2.1L OM651 Diesel | #0009062904 (2020–2025)

A failing alternator on a VS30 Sprinter will drain the battery under load, dim the lights at idle, and eventually leave you with a dead van — often without warning until the battery voltage drops below the point where the ECU can maintain normal operation. This is the Valeo 280-amp alternator for VS30 Sprinters equipped with the 2.1L OM651 diesel engine, a direct replacement that restores full charging output and stable electrical system performance across all operating conditions.

What This Part Does

The alternator is driven by the serpentine belt and converts mechanical energy from the engine into the electrical current that charges the battery and powers every system on the van — from the ECU and fuel injectors to the lights, HVAC blower, and any upfitted electrical equipment. At 280 amps this unit is rated for the substantial electrical demands of the VS30 platform, with headroom for vans equipped with upfitted inverters, refrigeration units, lighting arrays, and other aftermarket electrical loads common in commercial and fleet applications. When the alternator's diode pack, voltage regulator, brushes, or bearings fail, charging voltage drops or becomes erratic — causing battery drain, voltage-sensitive fault codes from the ECU, and eventually a no-start.

Common Symptoms of a Failing Alternator

• Battery warning light or low voltage warning in the instrument cluster
• Headlights that dim at idle and brighten under acceleration
• Battery that drains overnight or fails to hold a charge despite being healthy
• Voltage-related fault codes or electrical system warnings after extended idling
• Whining or grinding from the alternator pulley area under load
• Repeated battery failures that return after replacement

When to Replace

Replace when charging voltage is confirmed below specification under load and the alternator is diagnosed as the fault source after ruling out the serpentine belt, battery condition, and charging circuit wiring. Always replace the serpentine belt and tensioner at the same time if they are due for service, as these share the same labor access.

VS30 2.1L OM651 Specific — VIN Verification Required

This alternator is for VS30 Sprinters equipped with the 2.1L OM651 diesel engine. It is not compatible with VS30 models equipped with the 2.0L OM654 or the 3.0L OM642, or with NCV3 Sprinters. Alternator output rating and mounting configuration vary by engine and model year. Always verify your engine code and VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2020–2025 Mercedes-Benz Sprinter 1500 – 2.1L OM651 Diesel (VS30)
• 2020–2025 Mercedes-Benz Sprinter 2500 – 2.1L OM651 Diesel (VS30)
• 2020–2025 Mercedes-Benz Sprinter 3500 – 2.1L OM651 Diesel (VS30)
• 2020–2025 Mercedes-Benz Sprinter 3500XD – 2.1L OM651 Diesel (VS30)

✔ 280-amp output — verify your van's alternator amperage rating before ordering ✔ Not compatible with 2.0L OM654 or 3.0L OM642 configurations

Part Numbers

• Mercedes OEM: 0009062904 / A0009062904 / 000-906-29-04
• Manufacturer: Valeo
• SKU: 0009062904