Freightliner Exhaust / After-treatment Truck Parts

445 products

Showing 121 - 144 of 445 products

Shop Freightliner exhaust and after-treatment parts designed to keep your emissions system operating efficiently and compliant. Truckliner Parts carries new and used DEF system components, DEF tank headers, DEF supply lines, exhaust pipes, clamps, shields, diffuser assemblies, metering units, and related hardware for Freightliner Cascadia, M2, and other heavy-duty truck models.

Whether you're replacing a failed DEF tank header, repairing a DD15 exhaust assembly, resolving after-treatment fault codes, or maintaining emissions performance, we offer quality replacement parts from trusted manufacturers including Cummins Emission Solutions, Bendix, Wabco, Parker, Norgren, and Freightliner OEM.

Our extensive inventory includes hard-to-find exhaust and emissions components that help reduce downtime and restore proper system operation. Backed by more than 40 years of industry experience, Truckliner Parts provides reliable parts at competitive prices.

Browse our full selection of Freightliner exhaust and after-treatment components or call 260-277-2787 for expert support.

Showing 121 - 144 of 445 products

Used Freightliner DD15 DD13 DPF Aftertreatment Wiring Harness Sensor Box

Freightliner Used Freightliner DD15, DD13 Exhaust Aftertreatment Wiring Harness Sensor Box

$220.56

Used Freightliner DPF EGT Temp Sensor Unit | P/N A4721500633

Freightliner Used Freightliner Exhaust Aftertreatment Temp. Sensor Unit - P/N A4721500633

$200.56

Freightliner DD13 Exhaust Bellows Pipe Assembly | A04-35383-000

Freightliner New Freightliner DD13 GATS2.0 Exhaust Bellows Pipe Assembly - P/N A04-35383-000

$300.46

Mercedes-Benz Lockable DEF Tank Cap w/ 2 Keys | 04-29573-000

Mercedes-Benz New Mercedes-Benz Lockable DEF Tank Cap - P/Ns 04-29573-000, DIN 700 70

$80.46

Freightliner 31" Exhaust Heat Sleeve Thermoflex | 04-25243-031

Freightliner New Freightliner 31" Exhaust Heat Sleeve - P/N 04-25243-031

$35.36

Mercedes-Benz DEF Pump Filter & Housing Kit | A0001421089

Mercedes-Benz New Mercedes-Benz DEF Pump Filter & Housing w/ Plug - P/N A 000 142 10 89

$100.36

Freightliner Freightliner DEF Tank Rear Mounting Bracket - P/N 04-26884-003

$50.16

Freightliner Detroit Diesel DD13 Exhaust DPF Heat Shield - A6804910530

Freightliner Freightliner Detroit Diesel DD13 Exhaust DPF Heat Shield - P/N A6804910530

$75.16

Heavy Duty 5" Stainless Steel Flexible Exhaust Pipe - P/N 17B-500-12SS

Heavy Duty New Heavy Duty Man. 5" Stainless Steel Flexible Exhaust Pipe - P/N 17B-500-12SS

$45.16

Freightliner 10" Muffler Exhaust Clamps - P/N A04-12111-009

Freightliner *Lot of 2* *Missing Bolts* FTL 10" Muffler Exhaust Clamps - P/N A04-12111-009

$35.09

Freightliner Used Freightliner LH Gen2 Short Fill 13 Gallon DEF Tank - A04-35189-009

$350.09

Lot of 2 Freightliner Exhaust Muffler Shield Clamp | A04-12111-014

Freightliner *Lot of 2* Used Freightliner Exhaust Muffler Shield Clamp - P/N A04-12111-014

$50.09

Detroit Series 60 EGR Cooler to Mixer Tube 14L | DDE 23533375

Detroit Diesel Used Detroit Diesel Series 60 EGR Crossover Cooler to Mixer Tube - P/N P23533375

$45.09

Freightliner Heater Plumbing Exhaust Shield Bracket - 04-16983-000

Freightliner Used Freightliner Heater Plumbing Exhaust Shield Bracket - P/N 04-16983-000

$81.09

Freightliner Used Freightliner Cummins DEF Tank - A04-35189-009 & Header - 04-31353-005

$800.09

Freightliner Sterling Muffler - P/N 04-20630-001

Freightliner New Freightliner Sterling Exhaust Muffler - P/N 04-20630-001

$1,500.09

Freightliner Vertical Exhaust Stack Shield - 04-20538-000

Freightliner Used Freightliner 4" X 52" Vertical Stack Exhaust Shield- P/N 04-20538-000

$50.09

Freightliner Cummins SCR DPF Mounting Strap ISB/ISC/ISL | 04-27723-000

Freightliner Used Cummins Diesel Particulate Filter DPF Mounting Strap - P/N 04-27723-000

$45.09

Freightliner Cascadia P3 Exhaust Bellows & Pipe | P/N 04-25397-001

Freightliner Used Freightliner Cascadia P3 Exhaust Bellows With Pipe - P/N A04-27334-018

$500.09

Freightliner Cascadia P3 Exhaust Pipe Inlet | DD13 ATS Inlet | Stainless Steel | P/N 04-30676-000

Freightliner Used Freightliner Cascadia P3 ATS Exhaust Inlet Pipe - P/N 04-30676-000

$75.09

ULS-X1399C - Freightliner DEF Tank Depth Level Sender

Freightliner Used Freightliner DEF Tank Depth Level Sender - ULS-X1399C

$75.09

Freightliner Catalytic Converter Muffler (DN M130085) - Used

Donaldson Used Donaldson Freightliner Catalytic Converter Muffler - P/N DN M130085

$1,250.09

Donaldson Catalytic Converter Muffler - DN M130095

Donaldson Used Donaldson Freightliner Catalytic Converter Muffler - P/N DN M130095

$1,250.09

Freightliner After Treatment System Exhaust Tube - P/N 04-29909-000

Freightliner Freightliner Horizontal After Treatment System Exhaust Tube - P/N 04-29909-000

$300.09

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