Skip to content 
The A6540502500 camshaft housing for the Mercedes-Benz OM654.920 (2.0T) diesel engine addresses a common, costly valvetrain fatigue issue. Long-term operation leads to knocking noises and oil pressure drops, but Raceorly’s new product line solves this for out-of-warranty vehicles.
This new series offers two distinct configurations to resolve the “knocking” and oil pressure issues that plague these engines after they exit the warranty period.
Technical Breakthroughs: The Raceorly Engineering Edge
We didn’t just manufacture a replacement; we engineered a solution. Our R&D team focused on three specific technical pain points:
High-Density Gravity Casting
Most aftermarket housings suffer from micro-porosity. Our new A6540502500 uses a reinforced aluminum alloy that maintains structural integrity under the high thermal loads typical of German Autobahn driving.
Advanced Lobe Hardening (Assembly Version)
For the full assembly, our camshafts undergo a dual-stage induction hardening process. This targets the surface friction zones to prevent the premature scoring caused by modern high-pressure diesel injection.
OE-Spec Precision Machining
With a tolerance window of less than 0.01mm, our housings ensure perfect alignment with the cylinder head, preventing oil leaks and maintaining consistent hydraulic pressure for the lifters. This level of precision is critical for preventing premature wear on the camshaft lobes and lifters, which are common failure points in high-mileage OM654 engines. Our machining process ensures that every oil passage and bolt hole aligns perfectly with the cylinder head, eliminating the risk of leaks or pressure loss that can lead to engine damage.
Product Comparison: Standalone Housing vs. Complete Assembly
We understand that every engine failure is different. Our new launch includes two versions to optimize your repair cost and labor time:
| Technical Aspect | Camshaft Valve Cover (Housing Only) | Camshaft Housing Assembly (Full Kit) |
| Raceorly Part | A6540502500 | A6540502500 |
| What’s Included | Main Housing (excluding camshaft) | Housing + Pre-installed Dual Camshafts |
| Primary Use Case | Fixing oil leaks or structural cracks | Total valvetrain rebuild (scored lobes) |
| Installation Advantage | Direct OE replacement for the cover | “Drop-in” ready; eliminates timing errors |
| Workshop Efficiency | Lower part cost; reuse original shafts | Faster turnaround; maximum reliability |
Global Market Trends: Where Demand is Peaking
This new release is strategically targeted at markets where the Mercedes 2.0T diesel is the primary choice for commercial and luxury fleets:
Europe (Germany, UK, Poland)
With the highest vehicle density of OM654-powered Mercedes, European independent workshops are our primary focus for the A6540502500. These mechanics face unique challenges: Autobahn speeds create constant high thermal loads, while extended highway use accelerates valvetrain wear. Our reinforced alloy housings are engineered specifically to handle these conditions, making them a go-to choice for shops prioritizing long-term reliability.
Middle East & Russia
Our high-density alloy is proving essential in these regions, where extreme heat leads to faster lubrication breakdown.
Korea & Australia
Increasing demand for high-quality alternatives to dealership-only parts.
Americas: Steady growth in the premium diesel repair segment.
The Professional Verdict
Whether you are managing a fleet in Moscow or running a specialized Mercedes workshop in Berlin, the new A6540502500 series from Raceorly provides the reliability your customers expect. By offering both the standalone housing and the full assembly, we empower you to choose the most efficient repair path without compromising on engine longevity.
For more information on the OM654 engine’s design, refer to the Mercedes-Benz technical documentation.
