The DEF Tank and Sensor Assembly (Part #7339043) is designed to support the emissions system on compatible compact track loaders, helping maintain performance, efficiency, and regulatory compliance.

Engineered for diesel-powered machines with engines larger than 3 liters, this assembly stores Diesel Exhaust Fluid (DEF) and continuously monitors critical system data. The integrated sensor measures fluid level, temperature, and DEF quality, providing accurate information to help ensure proper operation of the emissions control system.

DEF technology uses a high-purity urea solution that is injected into the exhaust stream to reduce nitrogen oxide (NOx) emissions. By supporting the selective catalytic reduction (SCR) process, the system helps lower exhaust emissions while contributing to improved fuel efficiency and reduced fuel consumption.

As part of ongoing engineering enhancements, this assembly replaces several previous components. It supersedes tank part number **7303044** and sensor part numbers **7303043** and **7303045**, serving as the direct replacement for those parts.

**Key Features**

* Complete DEF tank and sensor assembly
* Designed for compact track loaders with diesel engines larger than 3 liters
* Monitors DEF fluid level, temperature, and quality
* Supports emissions reduction and SCR system performance
* Helps maintain fuel efficiency and proper engine operation
* Direct replacement for previous tank and sensor part numbers

**Compatible Models**

* T750
* T770
* T870

**Application**

* Compact Track Loaders