All Parts

Exhaust & Aftertreatment (185)

Diesel Particulate Filter (DPF)
Dayton Parts Part No: 674-2002
$2,490.26 View Part Contact Us
Diesel Particulate Filter (DPF)
Dayton Parts Part No: 674-2003
$2,542.24 View Part Contact Us
Diesel Particulate Filter (DPF)
Dorman Products, Inc. Part No: 674-2025
$4,810.39 View Part Contact Us
Diesel Particulate Filter (DPF)
Dayton Parts Part No: 674-2039
$2,636.51 View Part Contact Us
Diesel Particulate Filter (DPF)
Dorman Products, Inc. Part No: 674-2040
$2,211.45 View Part
Diesel Particulate Filter (DPF)
Dayton Parts Part No: 674-2044
$2,860.40 View Part Contact Us
Muffler Tee 5x21"
Trux Accessories Part No: 3876
$104.80 View Part Contact Us
DPF Pressure Sensor Cummins
Automatic Radio Mfg Co. Part No: 577.90513
$62.45 View Part
Exhaust Backpressure Sensor - Dayton
Dayton Parts Part No: 904-7163
$83.37 View Part Contact Us
Exhaust Bellows Freightliner Premium
Automatic Radio Mfg Co. Part No: 820.B46271P
$394.38 View Part Contact Us
Exhaust Gas Differential Pressure Sensor
Dayton Parts Part No: 904-7127
$56.49 View Part
EXHAUST GAS TEMPERATURE SENSOR
PAI Industries, Inc. Part No: 50641
$79.48 View Part Contact Us

Exhaust and Aftertreatment Parts for Heavy-Duty Truck Compliance

Excessive emissions, poor fuel efficiency, or warning lights can indicate worn or failing exhaust and aftertreatment parts. Wofford Truck Parts offers replacement components that help reduce emissions, support DEF systems, and maintain regulatory compliance for heavy-duty trucks.

The right replacement parts help restore engine performance and reduce downtime. Our inventory includes truck parts for common aftertreatment repairs, including diesel particulate filters, DEF components, sensors, catalytic converters, and related hardware.

FAQs about Exhaust and Aftertreatment

You may notice warning lights, increased exhaust smoke, reduced fuel efficiency, or failed emissions tests. Inspect affected components to identify worn or damaged parts before ordering replacements.
Check your part number, engine application, system type, and mounting configuration. Parts vary by truck and engine model, so matching your replacement to your system ensures proper fit and function.
Yes. Clogged or faulty diesel particulate filters, DEF components, or sensors can reduce engine power, increase fuel use, and trigger warning lights. Inspect related DEF system components during service.
Check diesel particulate filters, catalytic converters, sensors, tubing, and DEF system components for wear, clogging, or leaks. Our inventory includes emission sensors for common heavy-duty truck aftertreatment repairs.
Replace components when they are clogged, damaged, leaking, or fail emissions testing. Using correct parts from Wofford Truck Parts helps restore proper emissions control and engine performance.