CATEngine Parts

591-3428 Exhaust Fluid Level Sensor — Cat CB10 CB7

This Exhaust Fluid Level Sensor is an essential component of the aftertreatment system, accurately monitoring the level of Diesel Exhaust Fluid (DEF) in the tank. It is manufactured to meet stringent CAT specifications, ensuring precise readings that are critical for the SCR system's operation, unlike a faulty sensor that may provide incorrect data or fail to report. Operators may observe a DEF level warning light on the dash or an inaccurate DEF level display if this sensor is malfunctioning.

Exhaust Fluid Level Sensor – Part No 591-3428 – 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

/assets/js/product-page.js">

Related CAT Parts

From the same category — may also be needed

7X2688
Engine Parts Component
535-6924
Diesel Exhaust Fluid Level Sensor
396pcs
O Ring Seal Kit
8m-1584
Fuel Injector Group
291-7590
Chassis Wring Harness
169-5779-1695779
Modulating Valve 169 5779

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 TypeExhaust Fluid Level Sensor
MaterialPlastic, electronic components, corrosion-resistant metals
ApplicationDiesel Exhaust Fluid (DEF) tank monitoring
Service LifeReplace as needed based on function
CompatibilityCAT C3.6, CB-10, CB-7, CB-8, CP-7
ConditionNew — OEM specification aftermarket

Failure Symptoms

An inaccurate DEF level reading on the instrument panel or a persistent DEF level warning light are the first signs of a faulty sensor. If ignored, the system may not properly dose DEF, leading to reduced engine power or even shutdown to comply with emissions regulations. This can result in unexpected downtime and inability to operate the equipment.

Installation Tip

Before removing the old sensor, ensure the DEF tank is as empty as possible to minimize spillage, and wear appropriate protective gear. When installing the new sensor, ensure the O-ring seal is properly seated to prevent leaks.

Service Note

When replacing the DEF level sensor, it is recommended to inspect the DEF tank for any sediment or contamination and check the DEF pump and lines for proper operation.