Performance Water Pump Kit for Mercedes Benz GLE-Class (2016-2019) 3.5L

Complete Cooling System & Accessory Drive Water Pump Kit for 2016-2019 Mercedes Benz GLE-Class (W166)

What it Does: The Performance Water Pump Kit refreshes the entire primary cooling circuit and front accessory drive on the 2016-2019 Mercedes Benz GLE-Class to eliminate coolant leaks and maintain stable engine operating temperatures.

The Stock Mercedes Benz GLE-Class Cooling System Failure Points

Under continuous thermal cycling on the W166 chassis, the factory water pump mechanical shaft seal and internal bearings degrade over time, leading to coolant weepage, bearing play, and eventual front-accessory drive seizure. Simultaneously, the OEM composite thermostat housing suffers from plastic embrittlement and heat-induced warpage, generating micro-cracks along the sealing flange. When combined with fatigued internal dampening springs in the stock belt tensioner and dried bearing grease in the idler pulley, belt vibration increases exponentially, hastening water pump failure and risking sudden loss of coolant pressure on high-mileage M276 engines.

The Engineering Solution

This comprehensive cooling package restores factory hydraulic circulation and belt drive geometry using robust replacement components. The direct-fit mechanical water pump features precision-machined internal impellers and heavy-duty shaft bearings engineered to resist continuous radial loads. Paired with a fresh thermostat housing assembly, this kit prevents engine overheat conditions and ensures rapid closed-loop thermal regulation. Supplying a new damped serpentine tensioner, idler pulley with hardware, twin serpentine drive belts, and pre-formed elastomeric gaskets, it provides a leak-free mechanical seal that directly addresses OEM part number 2762001301.

What's Included

• 1 Mechanical Water Pump Assembly
• 1 Water Pump Gasket
• 1 Engine Coolant Thermostat Housing Assembly with Thermostat
• 1 Serpentine Belt Tensioner Assembly
• 1 Idler Pulley with Mounting Hardware
• 2 Serpentine Drive Belts
• 1 O-Ring

Technical Specifications

Compatibility

• 2016-2019 Mercedes Benz GLE-Class 3.5L V6 Gas Naturally Aspirated (GLE350)
• 2016-2018 Mercedes Benz GLE-Class 3.5L V6 Flex Fuel Naturally Aspirated (GLE350)

Frequently Asked Questions & Fitment Warnings

Does this fit the W166 GLE-Class?

Yes, this is a direct fit for the 2016-2019 Mercedes Benz GLE-Class equipped with the naturally aspirated M276 3.5L V6 engine. This kit does not fit turbocharged 3.0L V6, twin-turbo V8, or diesel GLE models.

Do I need to vacuum bleed the cooling system after installation?

Yes, pulling a vacuum on the M276 cooling circuit during refill is required to eliminate trapped air pockets within the cylinder heads and heater core passages.

The Mercedes Benz Precision Standard

Modern German powertrain architecture relies on tight tolerances and precise operating temperatures; minor coolant seepage or belt instability quickly causes auxiliary sensor codes and cylinder head thermal warping. Servicing your cooling system with OEM-spec components maintains hydraulic flow integrity, guarantees zero check-engine warnings, and protects your powertrain under all driving conditions.