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This is a replacement coolant expansion tank for Mercedes-Benz W164 models: GL320, GL350, GL450, GL550, ML320, ML350, ML450, ML500, ML550, ML63 AMG, and SLS AMG from roughly 2006 to 2015. It is a pressurized plastic tank with an integrated coolant level sensor and a single front mount hole, sold as a direct replacement for OEM part numbers 1645000049, 603-256, and EPT0009. It ships without a cap, so your original pressure cap must be reused. The main draw is a complete tank with the sensor already fitted, which saves swapping the sensor over from a cracked original; the trade-off is that it is an aftermarket part, so fit and plastic longevity depend on the individual unit rather than Mercedes-Benz quality control.
In stockSold by maXpeedingrodsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Availability unknown
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Lowest price we've seen: $28.97 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
This coolant expansion tank is a direct-replacement reservoir for the engine cooling system on select Mercedes-Benz GL, ML and SLS models. It is made of plastic and is pressurized. It includes a sensor and mounts at the front of the vehicle.
The tank is designed to meet or exceed OEM quality and performance. It does not include a cap. Professional installation is recommended. Check the compatibility list, part photos and part numbers before ordering.
