528-0537 | Genuine CAT® DEF (Diesel Exhaust Fluid) Sensor Head Assembly

Description and Purpose:

Genuine Diesel Exhaust Fluid (DEF) Sensor Head Assembly by Caterpillar. Part Number 528-0537. New component designed to regulate and monitor the DEF level and quality inside the manifold group of SCR (Selective Catalytic Reduction) systems. This sensor plays a vital role in optimizing exhaust aftertreatment by providing real-time data to the ECM, ensuring precise dosing of DEF. It is commonly installed in off-highway machinery such as wheel-type loaders, articulated trucks, and crawler tractors powered by Caterpillar engines including the C9.3B, C13, and C15. Cross reference: 5280537, 528-0537-02

Why Replacement is Important:

A malfunctioning DEF sensor can cause incorrect fluid readings, fault codes, and emission system shutdowns. Timely replacement restores proper SCR function and prevents unexpected machine derating.

Impact on Vehicle Performance:

Accurate DEF monitoring is essential to meet emission compliance and to sustain reliable power output, especially in equipment operating under heavy-duty conditions.

Manufacturer Information:

Caterpillar® is a global leader in heavy equipment and diesel engine technology, delivering robust components and power systems built for high-performance, durability, and demanding industrial applications.

Tags & Category: DEF (SCR) System, Manifold Group (DEF), Industrial Engines, Diesel Exhaust Fluid, Caterpillar, Manifold Group, Manifold 

Warranty:

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The -warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.