Mercedes Sprinter Crankshaft Main Bearing Set – Kolbenschmidt | VS30 2.0L OM654 Diesel | #6540332900SET (2023+)

Worn crankshaft main bearings on a VS30 Sprinter allow the crankshaft to move beyond its designed clearances — producing a deep knock that worsens under load and signals accelerating damage to the crankshaft journals, bearing saddles, and oil film that keeps the entire bottom end alive. This is the Kolbenschmidt OEM upper crankshaft main bearing kit in standard size for VS30 Sprinters equipped with the 2.0L OM654 diesel engine, a complete set for full main bearing renewal during engine bottom-end service.

What This Part Does

The crankshaft main bearings support the crankshaft at each journal in the engine block, allowing it to spin freely while maintaining precise oil film clearances that prevent metal-to-metal contact. The OM654 inline-four crankshaft runs on five main bearing journals — each supported by an upper shell in the block and a lower shell in the main bearing cap. Oil is fed under pressure through the block's main oil galleries directly to each bearing journal, creating a hydrodynamic film that carries the full combustion load transferred from the pistons through the connecting rods. When bearing clearances increase from wear, the oil film thins, pressure drops, and the characteristic deep knock begins — starting at idle under oil pressure and progressively worsening under load. This set covers the upper shells for all five main journal positions.

Common Symptoms of Worn Main Bearings

• Deep, rhythmic knocking from the lower engine that is present at idle and worsens under load
• Low oil pressure warning at idle, particularly when the engine is hot
• Oil pressure that recovers at higher RPM but drops again at idle — a classic bearing clearance symptom
• Metallic particles found in the engine oil during an oil change or oil analysis
• Engine knock that appeared after extended operation at low oil pressure or with degraded oil

When to Replace

Replace when main bearing knock is confirmed and crankshaft journal measurements indicate wear is within correctable limits. This standard-size set is for engines with journals that measure within factory specification — if journals show taper, out-of-round, or undersize measurement, select the appropriate undersize shells (0.25mm or 0.50mm) after crankshaft grinding. Always replace upper and lower shells together and use plastigauge to verify clearances before final assembly.

VS30 OM654 Specific — VIN Verification Required

This bearing set is for VS30 Sprinters equipped with the 2.0L OM654 diesel engine. It is not compatible with VS30 models equipped with the 3.0L OM642 or NCV3 Sprinters equipped with the 2.1L OM651. Always verify your engine code and VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

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

✔ Standard size — for journals measuring within factory specification ✔ Upper shells only — lower shells sold separately ✔ Always measure journal diameter and verify clearances with plastigauge before final assembly

Part Numbers

• Mercedes OEM: 6540332900SET
• Manufacturer: Kolbenschmidt — 37163600
• SKU: 6540332900SET