Mercedes Sprinter Serpentine Belt – Conti | VS30 2.0L OM654 Diesel | #0039934596 (2023–2025)

A worn or snapped serpentine belt on a VS30 Sprinter takes out the alternator, water pump, and A/C compressor simultaneously — leaving you with a dead battery, overheating engine, and a van that won't make it to the next stop. This is the Genuine Mercedes-Benz OEM serpentine belt for VS30 Sprinters equipped with the 2.0L OM654 diesel engine, a direct replacement that restores full accessory drive function with factory-spec dimensions and construction.

What This Part Does

The serpentine belt is a single continuous poly-V belt that wraps around the crankshaft pulley and drives every engine accessory in one loop — the alternator, water pump, A/C compressor, and power steering pump. On the OM654, the belt runs at 17.8mm wide by 1960mm long and is kept in constant tension by the belt tensioner. As the belt ages, its EPDM compound hardens and cracks, its ribs wear down, and its internal cords stretch — reducing grip on the pulleys and causing slippage under load. A belt that slips on the alternator reduces charging; one that slips on the water pump causes overheating. A belt that breaks ends the drive immediately.

Common Symptoms of a Failing Serpentine Belt

• Squealing or chirping from the engine bay, especially on startup or when the A/C is engaged
• Visible cracking, fraying, glazing, or rib wear on the belt surface
• Battery warning light or low voltage indication from reduced alternator output
• Engine temperature rising due to water pump slippage
• A/C performance dropping under load or at idle
• Belt dust or debris collecting near the accessory drive area

When to Replace

Replace at the interval specified in your maintenance schedule or when the belt shows any visible cracking, glazing, or rib wear. Also replace whenever the tensioner or idler pulley is replaced — installing a new belt on worn pulleys will accelerate wear and cause noise to return quickly. The tensioner, idler pulley, and serpentine belt should always be serviced together as a complete accessory drive kit.

VS30 OM654 Specific — VIN Verification Required

This belt is for VS30 Sprinters equipped with the 2.0L OM654 diesel engine with standard A/C. Belt length and routing vary by A/C configuration — vans equipped with roof-mounted or high-output A/C systems use a different belt. Always verify your engine code, A/C configuration, and VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2023–2025 Mercedes-Benz Sprinter 1500 – 2.0L OM654 Diesel (VS30)
• 2023–2025 Mercedes-Benz Sprinter 2500 – 2.0L OM654 Diesel (VS30)
• 2023–2025 Mercedes-Benz Sprinter 3500 – 2.0L OM654 Diesel (VS30)
• 2023–2025 Mercedes-Benz Sprinter 3500XD – 2.0L OM654 Diesel (VS30)

✔ Standard A/C only — does NOT fit roof-mounted or high-output A/C configurations

Part Numbers

• Mercedes OEM: 0039934596 / A0039934596 / 003-993-45-96
• Manufacturer: Conti — 5PK1960
• SKU: 0039934596