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Crankshaft Car Timing Gear 2720506847 For Benz M276 M278 Engine System
| MOQ: | 50PCS |
| Price: | Negotiation |
| Standard Packaging: | Cardboard box or Wooden box |
| Delivery Period: | 5-15Days |
| Payment Method: | L/C,D/A,MoneyGram,D/P,T/T,Western Union |
| Supply Capacity: | 5000 |
crankshaft car timing gear
,Benz M276 car timing gear
,2720506847
2720506847 Benz OEM Engine Timing Gear 2720506847 Engine Timing System Parts
1. Product Positioning
The 2720506847 is a genuine Mercedes-Benz timing system component, specifically designed for the M276/M278 engine platform. It ensures precise synchronization between the crankshaft and dual overhead camshafts (DOHC).
2. Technical Specifications
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Material & Manufacturing:
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Base material: SAE 8620 carburized steel
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Surface treatment: Laser hardening (HRC 58-62 hardness)
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Tooth grinding precision: DIN Class 6 accuracy
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Dynamic Performance:
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Max. operating speed: 7,200 RPM
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Noise level: ≤72 dB (@3,000 RPM)
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Axial runout: <0.05mm
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3. Compatibility
| Engine Code | Vehicle Model | Production Years |
|---|---|---|
| M276.820 | S400 (W222) | 2013-2017 |
| M278.980 | GL450 (X166) | 2014-2019 |
| M276.825 | E350 (W212 Facelift) | 2015-2018 |
Special Notes:
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Not compatible with 48V mild hybrid versions
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AMG models require reinforced bolts (sold separately)
4. Installation Guidelines
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Pre-Installation Checks:
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Measure sprocket axial clearance (standard: 0.1-0.3mm)
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Clean oil passages and pre-lubricate bearing surfaces
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Torque Specifications:
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Center bolt: 80Nm + 90° angle torque
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Requires MB special tool (TORX E14)
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Timing Calibration:
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VVT relearn via XENTRY diagnostic system
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Cold valve clearance adjustment (intake: 0.20±0.02mm)
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5. Recommended Replacement Parts
For optimal performance, replace together with:
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Hydraulic tensioner (A2760501447)
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Guide rail assembly (A2760502047)
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Seal kit (Q2760500047)
