603-839 Engine Coolant Reservoir Tank for 2013-2018 Ram 2500 / 3500 / 4500 / 5500 Engine L6 6.7L, Premium Coolant Overflow Tank with Cap & Sensor, Replace 68166475AA, 68166475AD — Open-Box

Suitable Vehicles. Our reservoir tank is compatible with 2013-2018 Ram 2500 L6 6.7L, 2013-2018 Ram 3500 L6 6.7L, 2013-2018 Ram 4500 L6 6.7L, 2013-2018 Ram 5500 L6 6.7L

Direct OE Replacement. The antifreeze reservoir tank is a direct replacement for the part numbers: ‎603-839, 68166475AA，68166475AD，68166475AC，68166475AB，68096261AA，68249136AA，68442532AA. Please check the images and your vehicle's original part to confirm exact compatibility

Protects Your Engine Cooling System. The radiator reservoir actively maintains the proper pressure and fluid levels in your cooling system, protecting your engine from overheating and ensuring efficient operation. Built to reliable fluid transfer tube-ensures coolant flows smoothly so your engine runs efficiently in all conditions

High Quality PA Material for Superior Performance. Robust construction stands up to engine vibration and stress. Lock in Performance. The 145 kPa / 21 PSI rated seal does more than prevent leaks—it locks in your engine's performance. By maintaining perfect system pressure, it ensures efficient cooling and guarantees long-term reliability

Clear MAX/MIN Indicator. The engine coolant reservoir tank equipped with max/min line, which allow you to verify the coolant status instantly. Avoid the risks of overfilling or underfilling. Built-in 2 pins low coolant sensor, automatically monitors fluid levels, eliminating the need for unreliable manual checks and ensuring you're always protected

Protects Your Engine. Actively manages coolant reservoir to maintain proper fluid levels, preventing engine overheating and ensuring optimal performance and longevity.