Product Introduction 1044471FE010 Urea Tank Vent Valve is a key component of the SCR aftertreatment system for HFC4DE1-1D engines. It balances air pressure inside the urea tank during urea consumption and liquid refilling, avoiding negative pressure or pressure buildup within the tank. This aftermarket replacement valve solves blockage, air leakage and abnormal pressure alarms caused by contaminated internal filter elements or aging seals of original valves, maintaining normal urea supply and protecting the SCR system for light commercial vehicles.

Product Advantages Built with anti-urea corrosion housing material, resisting chemical erosion from AdBlue solution. Built-in fine filter prevents dust and impurities from entering the urea tank. Flexible sealing diaphragm ensures stable pressure regulation under temperature variation. Each valve undergoes air tightness testing before shipment, simple to mount and helps reduce SCR system fault codes triggered by urea tank pressure anomalies.

Applicable Models Fit for JAC light trucks equipped with HFC4DE1-1D engine, widely used in urban logistics light cargo vehicles with SCR emission control system.

FAQ

Q1: What problems will a clogged urea tank vent valve cause?
A1: Negative pressure in urea tank, insufficient urea delivery and SCR fault codes on dashboard.
Q2: Can I clean the old vent valve instead of replacing it?
A2: Temporary cleaning is possible, but replacement is recommended once the filter is heavily contaminated.
Q3: Does this vent valve come with installation gaskets?
A3: Gaskets are not included, you need to prepare matching seals separately.
Q4: How to maintain the urea vent valve?
A4: Regularly inspect and clean the valve surface, avoid exposure to heavy dust and mud.