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Emission Control Parts

1–48 of 1000+ results

Top Seller

Williams Controls 134030 Throttle Position Sensor Kit, 5V, Integral Preload Spring, for Caterpillar Engines

Throttle Position Sensor Kit

134030 WILLIAMS CONTROLS Throttle Position Sensor Kit, 5V, Integral Preload Spring, for Caterpillar Engines

$139.49

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Freightliner A04-27445-000 Diesel Exhaust Fluid (DEF) Tank Header

Diesel Exhaust Fluid (DEF) Tank Header

a0427445000 FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header

$1,670.49

In Stock
Top Seller

Williams Controls 131973 Remote Sensor Assembly for WM531 Model, with Screw, fits Cummins/Mercedes North America Engines

Throttle Position Sensor Kit

131973 WILLIAMS CONTROLS Remote Sensor Assembly for WM531 Model, with Screw, fits Cummins/Mercedes North America Engines

$116.99

In Stock
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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

4065382c1 INTERNATIONAL Diesel Exhaust Fluid (DEF) Pressure Supply Hose/Line - for Commercial Trucks and Heavy-Duty Vehicles

$290.99

In Stock
Top Seller

Detroit Diesel RA4721401380 Exhaust Gas Recirculation (EGR) Cooler Mounting Seal Kit for Detroit Diesel DD13 / DD15

Exhaust Gas Recirculation (EGR) Cooler Seal

ra4721401380 DETROIT DIESEL Exhaust Gas Recirculation (EGR) Cooler Mounting Seal Kit for Detroit Diesel DD13 / DD15

$206.99

In Stock
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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

841955 PAI Exhaust Gas Recirculation (EGR) Cooler - Mack MP8 Engine Application Volvo D13 Engine Application 00193807120856

$1,695.99

In Stock
Top Seller

Bosch 18127 Oxygen Sensor - Thimble and Planar, Stainless Steel, Heated, 22mm Hex, Threaded

Oxygen Sensor

18127 BOSCH Oxygen Sensor - Thimble and Planar, Stainless Steel, Heated, 22mm Hex, Threaded 00077212167289

$211.99

In Stock
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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

0435959002 FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header - UQLS 13/23 Gallon KUS

$927.49

In Stock
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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

0432529000 FREIGHTLINER Diesel Exhaust Fluid (DEF) Filler Neck - Non-Magnetic, 15% Glass Fiber Reinforced

$52.49

In Stock
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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

0428829001 FREIGHTLINER Diesel Exhaust Fluid (DEF) Injector Feed Line Clip - 3/8 Inch

$10.49

In Stock
Top Seller

Cummins 3954753 Exhaust Gas Recirculation (EGR) Cooler Hose - Air Transfer Tube

Exhaust Gas Recirculation (EGR) Cooler Hose

3954753 CUMMINS Exhaust Gas Recirculation (EGR) Cooler Hose - Air Transfer Tube

$144.99

In Stock
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Motorad MO61 Engine Crankcase Breather Cap

Engine Crankcase Breather Cap

mo61 MOTORAD Engine Crankcase Breather Cap 00055644000619

$7.49

In Stock
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Dayton Parts 904-7358 Heavy Duty Diesel Exhaust Fluid Header Unit

Diesel Exhaust Fluid (DEF) Level Sensor

9047358 DAYTON PARTS Heavy Duty Diesel Exhaust Fluid Header Unit 00194883992320

$1,391.49

In Stock
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Freightliner 04-37614-000 Diesel Exhaust Fluid (DEF) Tank Header - 10 Gallons, KUS

Diesel Exhaust Fluid (DEF) Tank Header

0437614000 FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header - 10 Gallons, KUS

$1,090.49

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

Diesel Exhaust Fluid (DEF) Tank Header

0435649002 FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header - UQLS, 6 Gallon, KUS

$849.99

In Stock
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Fleetguard UF106 Urea Filter

Diesel Exhaust Fluid (DEF) Urea Filter

uf106 FLEETGUARD Urea Filter

$201.49

In Stock
Top Seller

Cummins 5524168 Air Fuel Throttle Valve - Used on EPA21 8.9 liter ISC/ISL Engines

Exhaust Throttle Valve

5524168 CUMMINS Air Fuel Throttle Valve - Used on EPA21 8.9 liter ISC/ISL Engines

$542.49

In Stock
Top Seller

Buyers Products hsv100 Diverter Valve - 1 in. NPTF, Two Position Selector

Diverter Valve

hsv100 BUYERS PRODUCTS Diverter Valve - 1 in. NPTF, Two Position Selector 724920033206

$125.49

In Stock
Top Seller

Fleetguard UF101 Urea Filter

Diesel Exhaust Fluid (DEF) Urea Filter

uf101 FLEETGUARD Urea Filter

$90.99

In Stock
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Cummins 4919546 Fuel System Leak Tester Adapter - for Cummins ISX15/QSX15 Engines

Fuel Leak Detection Sensor

4919546 CUMMINS Fuel System Leak Tester Adapter - for Cummins ISX15/QSX15 Engines

$227.49

In Stock
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Bosch 1457436088 Denox filter

Diesel Exhaust Fluid (DEF) Urea Filter

1457436088 BOSCH Denox filter 04047026265798

$36.49

In Stock
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DURAWRX ASP4310-6500711 Diesel Exhaust Fluid (DEF) Level Sensor - for Various Heavy Duty Applications

Diesel Exhaust Fluid (DEF) Level Sensor

asp43106500711 DURAWRX Diesel Exhaust Fluid (DEF) Level Sensor - for Various Heavy Duty Applications

$939.49

In Stock
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Cummins 4983620 Pressure Sensing Tube

Exhaust Gas Recirculation (EGR) Tube

4983620 CUMMINS Pressure Sensing Tube

$418.99

In Stock
Top Seller

Dayton Parts 904-7353 Heavy Duty Diesel Exhaust Fluid Header Unit

Diesel Exhaust Fluid (DEF) Level Sensor

9047353 DAYTON PARTS Heavy Duty Diesel Exhaust Fluid Header Unit 00194883992894

$655.49

In Stock
Top Seller

Dorman 47028 PCV Elbow

PCV Valve Elbow

47028 DORMAN PCV Elbow 00037495470285

$3.85

In Stock
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Freightliner A04-28402-000 HEADER-UNIT.TANK.DIESEL EXHAUST FUEL.10G

Diesel Exhaust Fluid (DEF) Tank Header

a0428402000 FREIGHTLINER HEADER-UNIT.TANK.DIESEL EXHAUST FUEL.10G

$1,603.49

In Stock
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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

0435959001 FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header with Urea Quality Level Sensor (UQLS), 13/23 Gal

$852.99

In Stock
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Freightliner 04-37613-000 Diesel Exhaust Fluid (DEF) Tank Header, 11.5 Gal Capacity, 50 mA, KUS

Diesel Exhaust Fluid (DEF) Tank Header

0437613000 FREIGHTLINER Diesel Exhaust Fluid (DEF) Tank Header, 11.5 Gal Capacity, 50 mA, KUS

$1,212.99

In Stock
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International 2517624C91 Engine Crankcase Breather, Navistar Compatible

Engine Crankcase Breather

2517624c91 INTERNATIONAL Engine Crankcase Breather, Navistar Compatible

$644.49

In Stock
Top Seller

Detroit Diesel DSN0ATZ16001 Diesel Particulate Filter (DPF) Soot Sensor - 1/2" Drive Soot Sensor Socket

Diesel Particulate Filter (DPF) Soot Sensor

dsn0atz16001 DETROIT DIESEL Diesel Particulate Filter (DPF) Soot Sensor - 1/2" Drive Soot Sensor Socket

$229.49

In Stock
Top Seller

Detroit Diesel A0111536728 Engine Intake Manifold Temperature Sensor - HDEP EPA07/EPA10/GHG17

Engine Intake Manifold Temperature Sensor

a0111536728 DETROIT DIESEL Engine Intake Manifold Temperature Sensor - HDEP EPA07/EPA10/GHG17

$36.99

In Stock
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Dorman 904-5051 Exhaust Gas Recirculation (EGR) Cooler - Flanged, Natural, Stainless Steel, Standard Replacement Grade

Exhaust Gas Recirculation (EGR) Cooler

9045051 DORMAN Exhaust Gas Recirculation (EGR) Cooler - Flanged, Natural, Stainless Steel, Standard Replacement Grade 00889245286772

$1,617.99

In Stock
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Isuzu 8982465063 Nitrogen Oxide (NOx) Sensor for Isuzu NPR, NQR, 4HK1, 4JJ1 Applications

Nitrogen Oxide (NOx) Sensor

8982465063 ISUZU Nitrogen Oxide (NOx) Sensor for Isuzu NPR, NQR, 4HK1, 4JJ1 Applications

$992.99

In Stock
Top Seller

Bosch 0 281 007 167 Diesel Particulate Sensor - New, For Cummins, Replaces 0 281 006 824

Diesel Particulate Sensor

0281007167 BOSCH Diesel Particulate Sensor - New, For Cummins, Replaces 0 281 006 824 04047026566062

$144.49

In Stock
Top Seller

DURAWRX ASP4310-6600718 18" DEF Tank Header, 4-Pin Deutsch DT4, 40µ Filter, Digital CANbus

Diesel Exhaust Fluid (DEF) Tank Header

asp43106600718 DURAWRX 18" DEF Tank Header, 4-Pin Deutsch DT4, 40µ Filter, Digital CANbus

$1,740.49

In Stock
Top Seller

Cummins 3691476 Engine Crankcase Breather Element - for 15 Liter ISX/QSX Engines

Engine Crankcase Breather Element

3691476 CUMMINS Engine Crankcase Breather Element - for 15 Liter ISX/QSX Engines

$188.99

In Stock
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Detroit Diesel R23538932 Exhaust Gas Recirculation (EGR) Valve

Exhaust Gas Recirculation (EGR) Valve

r23538932 DETROIT DIESEL Exhaust Gas Recirculation (EGR) Valve

$640.99

In Stock
Top Seller

International 4065383C1 Diesel Exhaust Fluid (DEF) Hose, Navistar Compatible

Diesel Exhaust Fluid (DEF) Hose

4065383c1 INTERNATIONAL Diesel Exhaust Fluid (DEF) Hose, Navistar Compatible

$360.49

In Stock
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Cummins 4387658RX Diesel Exhaust Fluid (DEF) Pump - fits ISX/QSX Engine Model

Diesel Exhaust Fluid (DEF) Pump

4387658rx CUMMINS Diesel Exhaust Fluid (DEF) Pump - fits ISX/QSX Engine Model

$1,769.99

In Stock
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Cummins 4309498 Exhaust Recirculation Cooler Kit

Exhaust Gas Recirculation (EGR) Cooler

4309498 CUMMINS Exhaust Recirculation Cooler Kit

$4,499.49

In Stock
Top Seller

Isuzu 8975421801 Vacuum Pump Pulley - fits 2022-2024 NQR

Vacuum Pump Pulley

8975421801 ISUZU Vacuum Pump Pulley - fits 2022-2024 NQR

$87.99

In Stock
Top Seller

Bosch 0261230217 Manifold Absolute Pressure Sensor - Electronic, 0-115 kPa, 4 Ports

Manifold Absolute Pressure Sensor

0261230217 BOSCH Manifold Absolute Pressure Sensor - Electronic, 0-115 kPa, 4 Ports 4047024649828

$35.99

In Stock
Top Seller

Bosch 0 281 007 522 Diesel Particulate Sensor - for 2017-2022 Ford 6.7L Powerstroke

Diesel Particulate Sensor

0281007522 BOSCH Diesel Particulate Sensor - for 2017-2022 Ford 6.7L Powerstroke 04047026504125

$171.99

In Stock
Top Seller

Breeze B9226-0306 Spring Loaded T-Bolt Clamp

Emission Control T-Bolt Clamp

b92260306 BREEZE Spring Loaded T-Bolt Clamp 012949052903

$9.99

In Stock
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Dayton Parts 904-5147 Exhaust Gas Recirculation (EGR) Cooler - Stainless Steel, Flanged, with Gaskets

Exhaust Gas Recirculation (EGR) Cooler

9045147 DAYTON PARTS Exhaust Gas Recirculation (EGR) Cooler - Stainless Steel, Flanged, with Gaskets 889245549389

$700.49

In Stock
Top Seller

Dinex 5EL008 Nitrogen Oxide (NOx) Sensor - Fits Paccar

Diesel Particulate Filter (DPF) Pressure Sensor

5el008 DINEX Nitrogen Oxide (NOx) Sensor - Fits Paccar 05700760355161

$404.49

In Stock
Top Seller

Mopar 68399240AA Exhaust Gas Recirculation (EGR) Cooler Bypass Valve - For 2013-2023 Ram

Exhaust Gas Recirculation (EGR) Cooler Bypass Valve

68399240aa MOPAR Exhaust Gas Recirculation (EGR) Cooler Bypass Valve - For 2013-2023 Ram

$1,273.49

In Stock
Top Seller

Cummins 5462277 Crankcase Pressure Sensor - 6.7L (Manifold Absolute Pressure Sensor)

Manifold Absolute Pressure Sensor

5462277 CUMMINS Crankcase Pressure Sensor - 6.7L (Manifold Absolute Pressure Sensor)

$113.99

In Stock

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.