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

SKU: 528-0537 MPN: 528-0537

Maintain optimal DEF performance with this Genuine Caterpillar DEF Sensor Head Assembly. Condition: New. Part Number: 528-0537. Fits C9.3B, C13 and others engine systems in select wheel loaders and off-highway equipment.

$2,399.00
No Core Charge
3 in stock

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Product Description

Product Name DEF Sensor Head Assembly Product Name DEF Sensor Head Assembly
Condition New Condition New
Brand Caterpillar® Brand Caterpillar®
Part Number 528-0537 Part Number 528-0537
Cross Reference 5280537, 528-0537-02 Cross Reference 5280537, 528-0537-02
Vehicle Compatibility
Wheel-Type Loader 980, 980M, 980XE, 982, 982M, 982XE, 986, 986K, 988GC Wheel-Type Loader 980, 980M, 980XE, 982, 982M, 982XE, 986, 986K, 988GC
Wheel Tractor-Scraper 637, 637K, 657, 657E Wheel Tractor-Scraper 637, 637K, 657, 657E
Load Haul Dump R2900 Load Haul Dump R2900
Ejector Truck 740 Ejector Truck 740
Forest Products 538 Forest Products 538
Articulated Dump Truck 735C, 740C Articulated Dump Truck 735C, 740C
Track-Type Tractor D6N, D6N LGP, D6N XL, D8, D8T Track-Type Tractor D6N, D6N LGP, D6N XL, D8, D8T
Articulated Truck 740GC, 745, 745C Articulated Truck 740GC, 745, 745C
Wheel Scraper 637K Wheel Scraper 637K
Excavator 323F, 323F L, 335F, 335F LCR Excavator 323F, 323F L, 335F, 335F LCR
Engine Compatibility
Industrial Engines C9.3B, C13, C15, C9.3, C7.1, C18 Industrial Engines C9.3B, C13, C15, C9.3, C7.1, C18

Useful Information

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.

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  • Icon Truck, Fast Delivery
    Free shipping over $199 Place an order today and receive it on Mar 6
  • Clock Icon
    Orders placed before 7-PM EST will ship same business day
  • Location icon, warehouse pickup point.
    Pickup available usually ready in 24 hours
  • Need it fast? We offer overnight shipping

    Contact us to check if overnight next-day delivery is available for your order - PN: 528-0537