CATEngine Parts

528-0550-02 Def Level Sensor — Cat C13

This is a Diesel Exhaust Fluid (DEF) level sensor designed to accurately measure the amount of DEF in the tank for modern emissions systems. It ensures the DEF system operates within optimal parameters to meet stringent environmental regulations, unlike a faulty sensor that provides inaccurate readings. Operators may notice the DEF warning light illuminating on the dashboard or the equipment entering a reduced power mode when this sensor fails.

Def Level Sensor – Part No 528-0550-02 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

};

Related CAT Parts

From the same category — may also be needed

RE538128
Pressure Sensor
3e-6451
Temperature Switch
1786543
Kit-Piston Rings
293-4781
Dipstick
1600161
Head Gasket
474-3231
Temperature Sensor

Browse all CAT Engine Parts →

Ship This Part To Your Location

DubaiSaudi ArabiaNigeriaKenyaSouth AfricaBangladeshMalaysiaGhanaQatarEgypt
India
MaharashtraGujaratTamil NaduRajasthanKarnatakaTelangana

Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeDEF Level Sensor
MaterialPlastic and electronic components
ApplicationDiesel Exhaust Fluid (DEF) tank monitoring
Service LifeReplace as needed based on diagnostic codes
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of failure is often an inaccurate DEF level reading on the equipment's display. If ignored, the system may trigger a DEF warning light or reduce engine power to comply with emissions regulations. Ultimately, continued operation with a faulty sensor can lead to non-compliance and potential operational restrictions.

Installation Tip

Ensure the DEF tank is clean before installation to prevent immediate contamination of the new sensor. Avoid overtightening the sensor during installation, as this can damage the threads or the sensor housing.

Service Note

Inspect the DEF fluid quality and the DEF pump for proper operation when replacing the level sensor.