Mercedes-Benz Engine Timing Chain 0009932076 For M264.920 W213 M256.930 W167 M276.825 W222

1. Vehicle Compatibility Chart

2. Key Features

✔ Precision Engineering

• Maintains exact camshaft-to-crankshaft timing (±0.3° tolerance)

• Computer-optimized link design for minimal stretch

✔ Enhanced Durability

• Special surface treatment reduces wear by 40% vs. aftermarket chains

• Integrated wear indicators for preventive maintenance

✔ Quiet Operation

• • "Triple-Arc" link design reduces contact stress by 35%

  • Patent DLC coating (0.003mm thick) with 0.12 friction coefficient

    2. Product Principle

    ▸ Core Function: Precise 1:2 synchronization between crankshaft and camshaft via gear train
    ▸ Technical Innovations:

3. Manufacturing Process

Material: ThyssenKrupp specialty steel (Grade 34CrNiMo6)
Key Processes:

• • Cryogenic treatment (-196°C×8h)

  • CNC carburizing & quenching (HRC58-62 hardness)

  • 100% magnetic particle inspection
    QC Standards:

  • Tensile strength: ≥22kN breaking load

  • Fatigue test: 500,000 cycles crack-free

  • Precision-ground rollers for smooth, low-noise rotation

  • MB-accepted noise level below 72 dB at operating RPM

4. Installation Guidelines

Critical Steps:

• 1. Secure crankshaft position using MB-Tool 204.589

  2. Tighten tensioner bolts in 3 stages (20Nm→45Nm→90°) per WIS

  3. Reset adaptations via XENTRY post-installation

Prohibited Actions:

• • Impact wrench usage

  • Reusing old tensioner

5. Why Choose Our Factory

Manufacturing Capabilities:

• MB Tier-1 supplier (Cert. MB-EP-22876)

• Fully automated production (3,000 pcs/day)

Service Advantages:

• 48-hour rapid prototyping (with 3D drawing approval)

• Batch traceability system (QR code access)

Transaction Terms: