Part number: MER-005401305000 is a new, unused Genuine Mercedes engine timing chain tensioner. Timing chains are like timing belts in that they keep the major components of the engine's combustion cycle in sync. Timing belt tensioners and timing chain tensioners perform the same job of keeping the chain/belt at the right tension. If the timing chain tensioner fails there is a high risk of chain failure, this it should be replaced immediately.
Genuine Mercedes parts guarantee that you are not compromising on quality, or fitment. These parts were engineered by the same talented specialists that designed your vehicle.
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