Fitment
Compatible with diesel emission systems

Equipment applications include:
Caterpillar Inc. Caterpillar 320D (C7.1 engine applications)
Caterpillar Inc. Caterpillar 320D (C9.3 engine applications)
Caterpillar Inc. Caterpillar 950H
Caterpillar Inc. Caterpillar 962H
Other CAT diesel equipment using part number 359-9171-02 / 5WK96725

FAQ

Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide concentration in diesel exhaust for emission system control.

Q2: Where is this sensor installed?
A2: It is installed in the exhaust aftertreatment system of diesel equipment.

Q3: Is part number matching required?
A3: Yes, exact part number matching is required for correct compatibility.

Q4: Are C7.1 and C9.3 engines using the same sensor?
A4: Compatibility depends on emission system configuration and calibration, not only engine family.

Q5: What are common failure symptoms?
A5: Engine warning indicators, emission system fault codes, or reduced machine performance mode.