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Freightliner Exhaust / After-treatment Truck Parts

Freightliner Exhaust / After-treatment Truck Parts

445 products

Showing 49 - 72 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 49 - 72 of 445 products

Freightliner Side Mounting Bracket (A) Assembly P/N: A22-67324-005 (4997482348630)

Freightliner Side Mounting Bracket (A) Assembly P/N: A22-67324-005 (4997482348630)

Freightliner Freightliner HPEP Side Mounting Bracket Assembly - P/N A22-67324-005

$55.09

Freightliner 32" 30° Curved 4" to 5" Polished Exhaust Pipe - P/N 04-31813-032 (6823660060758)

Freightliner 32" 30° Curved 4" to 5" Polished Exhaust Pipe - P/N 04-31813-032 (6823660060758)

Freightliner Freightliner 32" 30° Curved 4" to 5" Polished SS Exhaust Pipe - P/N 04-31813-032

$230.24

Used Freightliner Tank-Def Header (Depth Sensor Only) P/N: 04-28325-000 (6540310937686)

Used Freightliner Tank-Def Header (Depth Sensor Only) P/N: 04-28325-000 (6540310937686)

Freightliner Used Freightliner DEF Tank Depth Level Sender - 096362

$50.31

Freightliner 43.5 Inch Heat Exhaust Shield (6785098874966)

Freightliner 43.5 Inch Heat Exhaust Shield (6785098874966)

Freightliner Freightliner 43.5 Inch Heat Exhaust Shield

$125.62

Used Freightliner Aluminum 4" Short Exhaust Shield - P/N: 04-29265-002 (6763727913046)

Used Freightliner Aluminum 4" Short Exhaust Shield - P/N: 04-29265-002 (6763727913046)

Freightliner Used Freightliner 4 Inch Aluminum Exhaust Shield - P/N 04-29265-002

$99.52

Freightliner Remote Fill DEF Filler Hose - P/N 04-33259-000 (6759872299094)

Freightliner Remote Fill DEF Filler Hose - P/N 04-33259-000 (6759872299094)

Freightliner Freightliner Remote Fill DEF Filler Hose - P/N 04-33259-000

$24.09

Used Mercedes Benz Def Tank Lock Ring - P/N: A 001 471 09 30 (6750645813334)

Used Mercedes Benz Def Tank Lock Ring - P/N: A 001 471 09 30 (6750645813334)

Mercedes-Benz Used Mercedes Benz Def Tank Lock Ring - P/N A 001 471 09 30

$22.52

Freightliner M2 ISL After Treatment SYS Exhaust Pipe - P/N 04-30324-000 (6740810956886)

Freightliner M2 ISL After Treatment SYS Exhaust Pipe - P/N 04-30324-000 (6740810956886)

Freightliner Freightliner M2 ISL After Treatment SYS Exhaust Pipe - P/N 04-30324-000

$205.23

Freightliner After Market Exhaust Pipe - P/N 04-27780-000 (6740806434902)

Freightliner After Market Exhaust Pipe - P/N 04-27780-000 (6740806434902)

Freightliner Freightliner 24U, DC, 1C2 Aftertreatment System Exhaust Pipe - P/N 04-27780-000

$61.21

Used Dieter's 390CH Vertical Stack Exhaust Shield - P/N 04-28534-002 (6701051543638)

Used Dieter's 390CH Vertical Stack Exhaust Shield - P/N 04-28534-002 (6701051543638)

Dieter Used Dieter's 390CH Vertical Stack Exhaust Shield - P/N 04-28534-002

$135.12

Dieter's 5" SS Vertical Stack Exhaust Shield - P/N 04-25039-001 (6645339029590)

Dieter's 5" SS Vertical Stack Exhaust Shield - P/N 04-25039-001 (6645339029590)

Dieter Dieter's 5 Inch SS Vertical Stack Exhaust Shield - P/N 04-25039-001

$110.09

Freightliner 2x2.5" IN, 3" OUT Horizontal Muffler - P/N A04-34491-000 (6558610849878)

Freightliner 2x2.5" IN, 3" OUT Horizontal Muffler - P/N A04-34491-000 (6558610849878)

Freightliner Freightliner 2x2.5" IN, 3" OUT Horizontal Muffler - P/N A04-34491-000

$236.41

Freightliner Bottom Outlet Oval Muffler - P/N 04-20014-002 (6556177072214)

Freightliner Bottom Outlet Oval Muffler - P/N 04-20014-002 (6556177072214)

Freightliner Freightliner Bottom Outlet Oval Muffler - P/N 04-20014-002

$850.35

"REGEN" Inhibit On/Off Switch P/N 169318 (4559009841238)

"REGEN" Inhibit On/Off Switch P/N: 169318 (4559009841238)

Freightliner "REGEN" Inhibit ATD / DPF On/Off Switch P/N 169318

$20.20

Damaged Freightliner DEF Header 04-30798-000 (4508145549398)

Damaged Freightliner DEF Header 04-30798-000 (4508145549398)

Freightliner Damaged Freightliner 13/23 Gal. HDEP DEF Tank Header - P/N 04-30798-000

$199.49

Freightliner 6-Gallon DEF Tank - P/N 04-30382-000 (3939795402838)

Freightliner 6-Gallon DEF Tank - P/N 04-30382-000 (3939795402838)

Freightliner Freightliner 6-Gallon DEF Tank - P/N 04-30382-000

$495.49

Parker Aluminum Exhaust Silencer--?? NPTF, 129 scfm Flow, 250 psi--ES25MC (3939783508054)

Parker ¼" NPT Aluminum De-Fuel Exhaust Silencer - P/N: ES25MC (3939783508054)

Parker Parker ¼" NPT Aluminum De-Fuel Exhaust Silencer - P/N ES25MC

$18.43

Freightliner 42" Exhaust Heat Guard Sleeve - P/N 04-31180-042 (3939451207766)

Freightliner 42" Exhaust Heat Guard Sleeve - P/N 04-31180-042 (3939451207766)

Freightliner Freightliner 42" Exhaust Heat Guard Sleeve - P/N 04-31180-042

$69.99

Freightliner 12? Exhaust Heat Sock/Sleeve - I.D. 6?- P/N 04-31180-012 (3939450945622)

Freightliner 12? Exhaust Heat Sock/Sleeve - I.D. 6?- P/N 04-31180-012 (3939450945622)

Freightliner Freightliner 12" Exhaust Heat Sock/Sleeve - I.D. 6"- P/N 04-31180-012

$32.97

Freightliner 2.75"-3.25" Band-Clamps (Set of 3) P/N 04-21778-004 (3939443048534)

Freightliner 2.75"-3.25" Band-Clamps (Set of 3) P/N 04-21778-004 (3939443048534)

Freightliner Freightliner 2.75"-3.25" Band-Clamps (Set of 3) P/N 04-21778-004

$20.89

Mercedes-Benz DEF Pump Filter & Housing Kit | A0001421089

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 Cummins EPA17 6 Gal DEF Tank - P/N 04-31372-002 (10169481003324)

Freightliner Cummins EPA17 6 Gal DEF Tank - P/N 04-31372-002 (10169481003324)

Cummins Freightliner Cummins EPA17 6 Gal DEF Tank - P/N 04-31372-002

$495.49

New Detroit DEF Supply Unit and metering Unit Kit Filter - P/N DDE A0001408678 (10141462823228)

New Detroit DEF Supply Unit and metering Unit Kit Filter - P/N DDE A0001408678 (10141462823228)

Mercedes-Benz New Detroit DEF Supply Unit and metering Unit Kit Filter - P/N DDE A0001408678

$300.85

Freightliner Steel Elbow Exhaust Pipe P/N - 04-34765-000 (10127890448700)

Freightliner Steel Elbow Exhaust Pipe P/N - 04-34765-000 (10127890448700)

Freightliner Freightliner 5" Steel Elbow Exhaust Pipe -P/N 04-34765-000

$115.85

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