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Emission Control Parts

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Freightliner 04-35959-002 Diesel Exhaust Fluid (DEF) Tank Header - UQLS 13/23 Gallon KUS

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header - UQLS 13/23 Gallon KUS
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Williams Controls 131973 Remote Sensor Assembly for WM531 Model, with Screw, fits Cummins/Mercedes North America Engines

Throttle Position Sensor Kit

WILLIAMS CONTROLS Remote Sensor Assembly for WM531 Model, with Screw, fits Cummins/Mercedes North America Engines
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Freightliner A04-27445-000 Diesel Exhaust Fluid (DEF) Tank Header

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header
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Freightliner 04-35649-002 Diesel Exhaust Fluid (DEF) Tank Header - UQLS, 6 Gallon, KUS

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header - UQLS, 6 Gallon, KUS
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Williams Controls 134030 Throttle Position Sensor Kit, 5V, Integral Preload Spring, for Caterpillar Engines

Throttle Position Sensor Kit

WILLIAMS CONTROLS Throttle Position Sensor Kit, 5V, Integral Preload Spring, for Caterpillar Engines
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International 4065382C1 Diesel Exhaust Fluid (DEF) Pressure Supply Hose/Line - for Commercial Trucks and Heavy-Duty Vehicles

Diesel Exhaust Fluid (DEF) Hose

INTERNATIONAL Diesel Exhaust Fluid (DEF) Pressure Supply Hose/Line - for Commercial Trucks and Heavy-Duty Vehicles
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Detroit Diesel RA4721401380 Exhaust Gas Recirculation (EGR) Cooler Mounting Seal Kit for Detroit Diesel DD13 / DD15

Exhaust Gas Recirculation (EGR) Cooler Seal

DETROIT DIESEL Exhaust Gas Recirculation (EGR) Cooler Mounting Seal Kit for Detroit Diesel DD13 / DD15
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Cummins 3954753 Exhaust Gas Recirculation (EGR) Cooler Hose - Air Transfer Tube

Exhaust Gas Recirculation (EGR) Cooler Hose

CUMMINS Exhaust Gas Recirculation (EGR) Cooler Hose - Air Transfer Tube
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Freightliner 04-28829-001 Diesel Exhaust Fluid (DEF) Injector Feed Line Clip - 3/8 Inch

Diesel Exhaust Fluid (DEF) Injector Feed Line Clip

FREIGHTLINER Diesel Exhaust Fluid (DEF) Injector Feed Line Clip - 3/8 Inch
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Motorad MO61 Engine Crankcase Breather Cap

Engine Crankcase Breather Cap

MOTORAD Engine Crankcase Breather Cap 00055644000619
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Freightliner 04-35959-001 Diesel Exhaust Fluid (DEF) Tank Header with Urea Quality Level Sensor (UQLS), 13/23 Gal

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header with Urea Quality Level Sensor (UQLS), 13/23 Gal
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Freightliner 04-31353-005 Diesel Exhaust Fluid (Def) Tank Header - Selective Catalytic Reduction System, Connector, SAE Flange

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (Def) Tank Header - Selective Catalytic Reduction System, Connector, SAE Flange
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Bosch 18127 Oxygen Sensor - Thimble and Planar, Stainless Steel, Heated, 22mm Hex, Threaded

Oxygen Sensor

BOSCH Oxygen Sensor - Thimble and Planar, Stainless Steel, Heated, 22mm Hex, Threaded 00077212167289
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Freightliner 04-37614-000 Diesel Exhaust Fluid (DEF) Tank Header - 10 Gallons, KUS

Diesel Exhaust Fluid (DEF) Tank Header

FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header - 10 Gallons, KUS
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Fleetguard UF106 Urea Filter

Diesel Exhaust Fluid (DEF) Urea Filter

FLEETGUARD Urea Filter
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Fleetguard UF101 Urea Filter

Diesel Exhaust Fluid (DEF) Urea Filter

FLEETGUARD Urea Filter
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Cummins 4387658RX Diesel Exhaust Fluid (DEF) Pump - fits ISX/QSX Engine Model

Diesel Exhaust Fluid (DEF) Pump

CUMMINS Diesel Exhaust Fluid (DEF) Pump - fits ISX/QSX Engine Model
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Williams Controls 130800 WM531 Series Remote Sensor Assembly, for Freightliner with DDEC III & IV Engines

Throttle Position Sensor Kit

WILLIAMS CONTROLS WM531 Series Remote Sensor Assembly, for Freightliner with DDEC III & IV Engines
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Isuzu 8982465063 Nitrogen Oxide (NOx) Sensor for Isuzu NPR, NQR, 4HK1, 4JJ1 Applications

Nitrogen Oxide (NOx) Sensor

ISUZU Nitrogen Oxide (NOx) Sensor for Isuzu NPR, NQR, 4HK1, 4JJ1 Applications
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DURAWRX ASP4310-6600718 18" DEF Tank Header, 4-Pin Deutsch DT4, 40µ Filter, Digital CANbus

Diesel Exhaust Fluid (DEF) Tank Header

DURAWRX 18" DEF Tank Header, 4-Pin Deutsch DT4, 40µ Filter, Digital CANbus
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Cummins 5524168 Air Fuel Throttle Valve - Used on EPA21 8.9 liter ISC/ISL Engines

Exhaust Throttle Valve

CUMMINS Air Fuel Throttle Valve - Used on EPA21 8.9 liter ISC/ISL Engines
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International 2517624C91 Engine Crankcase Breather, Navistar Compatible

Engine Crankcase Breather

INTERNATIONAL Engine Crankcase Breather, Navistar Compatible
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Dorman 904-5051 Exhaust Gas Recirculation (EGR) Cooler - Flanged, Natural, Stainless Steel, Standard Replacement Grade

Exhaust Gas Recirculation (EGR) Cooler

DORMAN Exhaust Gas Recirculation (EGR) Cooler - Flanged, Natural, Stainless Steel, Standard Replacement Grade 00889245286772
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Bosch 1457436088 Denox filter

Diesel Exhaust Fluid (DEF) Urea Filter

BOSCH Denox filter 04047026265798
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Ottawa Truck CTT00054955 Diesel Exhaust Fluid (DEF) Tank Assembly

Diesel Exhaust Fluid (DEF) Tank Assembly

OTTAWA TRUCK Diesel Exhaust Fluid (DEF) Tank Assembly
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International 2523652C1 Mass Air Flow Sensor, Supersedes 2519555C1

Mass Air Flow Sensor

INTERNATIONAL Mass Air Flow Sensor, Supersedes 2519555C1
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Cummins 4326868RX Nitrogen Oxide (NOx) Sensor - fits Cummins 8.9 Liter ISC/ISL Engine

Nitrogen Oxide (NOx) Sensor

CUMMINS Nitrogen Oxide (NOx) Sensor - fits Cummins 8.9 Liter ISC/ISL Engine
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Cummins 2888173 Diesel Exhaust Fluid (DEF) Doser Injector for ISX, ISC, ISL, QSC, QSL Engines

Diesel Exhaust Fluid (DEF) Doser Service Kit

CUMMINS Diesel Exhaust Fluid (DEF) Doser Injector for ISX, ISC, ISL, QSC, QSL Engines
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PAI 841955 Exhaust Gas Recirculation (EGR) Cooler - Mack MP8 Engine Application Volvo D13 Engine Application

PAI

Exhaust Gas Recirculation (EGR) Cooler

PAI Exhaust Gas Recirculation (EGR) Cooler - Mack MP8 Engine Application Volvo D13 Engine Application 00193807120856
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Cummins 3691476 Engine Crankcase Breather Element - for 15 Liter ISX/QSX Engines

Engine Crankcase Breather Element

CUMMINS Engine Crankcase Breather Element - for 15 Liter ISX/QSX Engines
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Cummins 4983620 Pressure Sensing Tube

Exhaust Gas Recirculation (EGR) Tube

CUMMINS Pressure Sensing Tube
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International 4065383C1 Diesel Exhaust Fluid (DEF) Hose, Navistar Compatible

Diesel Exhaust Fluid (DEF) Hose

INTERNATIONAL Diesel Exhaust Fluid (DEF) Hose, Navistar Compatible
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Fleetguard 3928013S Heater Kit

Diesel Exhaust Fluid (DEF) Urea Filter

FLEETGUARD Heater Kit
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Cummins 4309498 Exhaust Recirculation Cooler Kit

Exhaust Gas Recirculation (EGR) Cooler

CUMMINS Exhaust Recirculation Cooler Kit
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International 7093618C92 Closed Breather Conversion Kit with Turbine Housing, Navistar Compatible

Engine Crankcase Breather

INTERNATIONAL Closed Breather Conversion Kit with Turbine Housing, Navistar Compatible
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Bosch 0 281 007 522 Diesel Particulate Sensor - for 2017-2022 Ford 6.7L Powerstroke

Diesel Particulate Sensor

BOSCH Diesel Particulate Sensor - for 2017-2022 Ford 6.7L Powerstroke 04047026504125
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DURAWRX ASP4310-6500711 Diesel Exhaust Fluid (DEF) Level Sensor - for Various Heavy Duty Applications

Diesel Exhaust Fluid (DEF) Level Sensor

DURAWRX Diesel Exhaust Fluid (DEF) Level Sensor - for Various Heavy Duty Applications
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Dayton Parts 904-5147 Exhaust Gas Recirculation (EGR) Cooler - Stainless Steel, Flanged, with Gaskets

Exhaust Gas Recirculation (EGR) Cooler

DAYTON PARTS Exhaust Gas Recirculation (EGR) Cooler - Stainless Steel, Flanged, with Gaskets 889245549389
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Freightliner 04-32529-000 Diesel Exhaust Fluid (DEF) Filler Neck - Non-Magnetic, 15% Glass Fiber Reinforced

Diesel Exhaust Fluid (DEF) Filler Neck

FREIGHTLINER Diesel Exhaust Fluid (DEF) Filler Neck - Non-Magnetic, 15% Glass Fiber Reinforced
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Freightliner 04-28841-240 Diesel Exhaust Fluid (DEF) Doser Coolant Line

Diesel Exhaust Fluid (DEF) Doser Coolant Line

FREIGHTLINER Diesel Exhaust Fluid (DEF) Doser Coolant Line
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Freightliner 03-38068-000 Diesel Exhaust Fluid (Def) Feed Line Fitting - Elbow, 90 Degree, Hose Barb

Diesel Exhaust Fluid (DEF) Feed Line Fitting

FREIGHTLINER Diesel Exhaust Fluid (Def) Feed Line Fitting - Elbow, 90 Degree, Hose Barb
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DURAWRX ASP4310-6600722 Diesel Exhaust Fluid (DEF) Tank Header - 22 in. Length, 40 Micron

Diesel Exhaust Fluid (DEF) Tank Header

DURAWRX Diesel Exhaust Fluid (DEF) Tank Header - 22 in. Length, 40 Micron
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Cummins 5511745 Diesel Exhaust Fluid (DEF) Module - Doser Fluid Supply Module

Diesel Exhaust Fluid (DEF) Module

CUMMINS Diesel Exhaust Fluid (DEF) Module - Doser Fluid Supply Module
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Cummins 5506957RX Aftertreatment Doser Pump for Cummins EPA17 15 liter ISX/QSX Engines

Diesel Exhaust Fluid (DEF) Doser Pump

CUMMINS Aftertreatment Doser Pump for Cummins EPA17 15 liter ISX/QSX Engines
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Cummins 5506956 Diesel Exhaust Fluid (DEF) Pump - fits EPA17 Automotive 15L ISX/QSX Engine Model

Diesel Exhaust Fluid (DEF) Pump

CUMMINS Diesel Exhaust Fluid (DEF) Pump - fits EPA17 Automotive 15L ISX/QSX Engine Model
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Detroit Diesel EA0011400878 Diesel Exhaust Fluid (DEF) Supply Pump

Diesel Exhaust Fluid (DEF) Pump

DETROIT DIESEL Diesel Exhaust Fluid (DEF) Supply Pump
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Williams Controls WIL 131973 Remote Sensor Assembly for WM531 Model, with Screw, fits Cummins/Mercedes North America Engines

Throttle Position Sensor Kit

WILLIAMS CONTROLS Remote Sensor Assembly for WM531 Model, with Screw, fits Cummins/Mercedes North America Engines
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Isuzu 8-97656-980-1 Brake Vacuum Pump

Vacuum Pump

ISUZU Brake Vacuum Pump
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Emission Control Parts at FinditParts.com

At FinditParts.com, we understand the importance of keeping your truck's emissions under control. That's why we offer a comprehensive selection of high-quality emission control parts, from sensors, EGR valves, and related components to crankcase ventilation systems and DEF tanks. Our extensive inventory caters to any emission control need your heavy duty or semi truck may have—simply use our quick lookup-by-part tool or browse through our catalog to find the exact part that fits your vehicle. We source our parts from trusted manufacturers like Standard Ignition, AC Delco, and Walker Products, so you can be confident in the quality and performance of our products. Shop now at FinditParts.com and get your needed emission control parts delivered right to your doorstep in no time. 

This FAQ section is designed to answer some of your most common questions about purchasing emission control parts for your semi truck or heavy-duty truck/trailer at FinditParts.com:

What are some of the key benefits of replacing worn-out emission control parts?

Replacing faulty emission control components can improve fuel efficiency, reduce harmful emissions, and ensure your truck complies with regulatory standards. This can also enhance overall engine performance and prolong the life of your vehicle.

How do I know if an emission control part from FinditParts.com will fit my specific truck?

Our vehicle parts counter can help you determine if an emission control part is an exact fit for your specific truck model. Simply input the part number, or reach out to our support team for assistance.

What are some warning signs that indicate my emission control system needs attention?

Increased fuel consumption, check engine light illumination, rough idling, or visible smoke coming from the exhaust can be signs of a failing emission control system.

Are the emission control parts on FinditParts.com reliable and meet regulatory standards?

FinditParts.com offers a variety of emission control parts, including OEM and high-quality aftermarket options. All our parts meet or exceed industry standards and are sourced from reputable manufacturers to ensure reliability and compliance.

Do your emission control parts come with a warranty?

Yes, many of our emission control parts come with a warranty for added peace of mind. Check individual product listings for details.