4086802C91 | Genuine OEM International 9.5 Gallon DEF Tank QLS Sensor Head

Genuine OEM International 9.5 gallon DEF tank QLS sensor head designed for compatible Diesel Exhaust Fluid (DEF) tank and SCR aftertreatment systems. This sensor head is part of the DEF tank sensing assembly used to monitor DEF tank conditions.

PRODUCT INFORMATION

• Part Number: 4086802C91
• Brand: International
• Condition: New
• Component: DEF Tank QLS Sensor Head
• Sensor Type: QLS
• DEF Tank Capacity: 9.5 Gallon
• System: Diesel Exhaust Fluid / SCR Aftertreatment
• Part Type: DEF Sensor Head / DEF Header

APPLICATIONS

• International heavy-duty truck DEF systems
• Compatible 9.5 gallon DEF tank configurations
• SCR aftertreatment systems using compatible QLS sensing

Exact fitment depends on the vehicle model, DEF tank configuration, system design, and original equipment specifications.

FUNCTION

The DEF tank QLS sensor head is part of the DEF sensing assembly. It supports monitoring of DEF tank conditions and provides sensing information to the vehicle's DEF and SCR aftertreatment system.

A worn, damaged, or failing DEF TANK QLS SENSOR HEAD may cause symptoms such as:

• Incorrect DEF level readings
• DEF system warning messages
• DEF sensor-related diagnostic fault codes
• SCR system monitoring faults
• Emissions system warnings
• Improper DEF system operation

WHY REPLACE A DEF TANK QLS SENSOR HEAD?

A properly functioning DEF sensor head is important for accurate DEF tank monitoring and normal SCR aftertreatment system operation. Replacing a faulty or damaged unit can help restore proper DEF system sensing.

FITMENT INFORMATION

Please verify the part number, DEF tank capacity, vehicle model, model year, QLS configuration, and original equipment specifications before purchase.

If you are unsure whether this part is correct for your vehicle, please contact us with your VIN and original part number. We are happy to help verify compatibility before purchase.

GENUINE INTERNATIONAL PART

Part Number: 4086802C91