P/N: 1668301400 Genuine Mercedes
Description:
Expansion Tank to Auxiliary Water Pump
Cross References:
- A1668301400
- Genuine Mercedes replacement expansion tank coolant hose
- 3-way coolant hose with spring clamps from the expansion tank to the auxiliary water pump on Mercedes W166 chassis ML and X166 chassis GL and GLS models with M278 V8 engines
- (1) per vehicle
- Replaces dry rotted, swollen, or cracked expansion tank coolant hoses that are leaking coolant
- Recommended to inspect all coolant hoses at every service to prevent severe coolant leaks
- For Models with code 053 or 803
- Not for models with Heated Windshield Washer System code 875
- Fits Mercedes GL450 2013-2014, GL550 2013-2016, GLS550 2017-2019, and ML550 2012-2014
Any Genuine brand part is obtained directly through our vehicle dealership network from your vehicle’s manufacturer. This is always your best option for getting the exact same part that is being replaced and will be the latest version design.
Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. “Per car” notes identify how many of a given part your car has and
“Left/Right or Front/Rear” notes means the part fits the left or right side of the car. These parts are still sold individually and you’ll
need to select the appropriate quantity if you plan to replace more than one of this item.
“Left/Right or Front/Rear” notes means the part fits the left or right side of the car. These parts are still sold individually and you’ll
need to select the appropriate quantity if you plan to replace more than one of this item.






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