All Parts

Exhaust & Aftertreatment (185)

Grand Rock FL-16460-009 5" Elbow 35.5 Degree OD/Flare Pyro
Grand Rock Part No: FL-16460-009
$128.32 View Part
Newstar S-25599 V Band Clamp
S&S Truck Parts (Newstar) Part No: 25599
$22.05 View Part
Qwik Clamp Airpower Assembly
Automatic Radio Mfg Co. Part No: PHI17-181
$22.93 View Part Contact Us
Seal Clamp, 5 in (127 mm) Stainless
Donaldson Company Part No: X007785
$19.40 View Part Contact Us
3.5"X4 OD/FLARE ALZ
Grand Rock Part No: T425-4
$29.08 View Part Contact Us
4"2-BEND ID/OD ALZ
Grand Rock Part No: SB3-4896GM
$158.61 View Part Contact Us
CLAMP V-BAND,2.75
Grand Rock Part No: VB-321C
$33.55 View Part Contact Us
CONNECTOR,5"X48 ID/ID ALZ
Grand Rock Part No: RS-548A
$119.76 View Part Contact Us
Elbow,5"62deg Od/Flare Pyro Alz
GRAND ROCK Part No: PB-15329
$171.10 View Part
Elbow,5" 90deg,18x18 Id/Od Alz
GRAND ROCK Part No: L590-1818A
$59.63 View Part
ELBOW,5"90DEG ID/OD FLAT CHR
Grand Rock Part No: IH-4095C3-A
$209.19 View Part Contact Us
Grand Rock 4" 2-Bend Flare/5" OD Turbo ALZ
Grand Rock Part No: IH-4821C3
$256.65 View Part

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.