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Fuel & Emission Parts

Genuine OEM Fuel & Emission Parts

A failing humidity or NOx sensor, a clogged fuel control housing, or a DEF header that's lost calibration can all trigger the same result — a derate, a fault code, and a diesel engine that won't run within emissions compliance. Because these components work together to manage combustion, exhaust treatment, and fluid delivery, a wrong or generic replacement often means the same fault code returns within weeks. That's why every part in this collection is genuine OEM, matched to the manufacturer's original part number.

What's in this category

This collection covers the core fuel and emission system components for heavy-duty diesel engines, including:

  • Humidity & exhaust gas pressure sensors — feed combustion and emissions data to the ECM
  • NOx sensors — monitor nitrogen oxide levels for SCR system compliance
  • Fuel control housings & fuel filter housings — regulate and filter fuel delivery to the engine
  • Fuel pumps — deliver fuel at the pressure your engine needs to run correctly
  • DEF headers, multifunction head units & tank jumper harnesses — manage diesel exhaust fluid level, quality, and delivery
  • Diesel exhaust fluid headers — tank-mounted assemblies for DEF systems
  • Brake booster cylinders with motor kits — hydraulic power assist for heavy-duty braking

Brands we cover

This collection includes genuine OEM parts for Cummins, International/Navistar, Mopar, Detroit Diesel, Volvo, Mack, Capacity, Hyundai, JLG and more.

Why order your fuel & emission parts here

  • Genuine OEM only — every part is matched to the manufacturer's original part number, not a generic equivalent
  • Built for accurate fitment — listings include the exact OEM number so you can verify the right part before you buy
  • Fast turnaround — ships quickly to minimize downtime and keep your engine in compliance

FAQ

What does a humidity sensor do? It measures intake air humidity so the ECM can adjust fuel and emissions calculations. Failure can trigger fault codes or unnecessary derates.

NOx sensor vs. DEF sensor? A NOx sensor checks exhaust nitrogen oxide levels to confirm the SCR system is working; a DEF sensor monitors DEF level and quality in the tank.

Signs of a failing fuel pump or housing? Hard starting, rough idle, power loss under load, stalling, or a fuel-related check engine light.

Genuine OEM or aftermarket? All parts here are genuine OEM — no generic substitutes.

How do I find the right part? Match the OEM number on your old component or check your service manual, then search that number above.

Filters

$389.00 - $389.00
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2872942 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 2872942 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 ISX/QSX 15-liter engine applications. This sensor me...

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2512834C1 Genuine International DEF Tank Level Sensor For 5-Gallon DEF Tank

International

Product Overview The 2512834C1 is a genuine International DEF tank level sensor designed for 5-gallon diesel exhaust fluid tank applications. This ...

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2610044C1 Genuine International DEF Tank Level Sensor For 5-Gallon DEF Tank

International

Product Overview The 2610044C1 is a genuine International DEF tank level sensor designed for 5-gallon diesel exhaust fluid tank applications. This ...

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1954664PRX Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The 1954664PRX is a genuine Cummins Nox Nitrogen Oxide Sensor designed for select Peterbilt and Ottawa truck applications equipped...

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1924000 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 1924000 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 ISX/QSX 15-liter engine applications. This sensor mo...

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04-31354-001 Genuine Freightliner DEF Level Header 17.8 Inch

Freightliner

Product Overview The 04-31354-001 is a genuine Freightliner DEF level header designed for diesel exhaust fluid system applications. This component ...

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1954664PE Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The 1954664PE is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 ISX/QSX 15-liter engine applications. This Nox Nit...

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04-30798-001 Genuine Freightliner DEF Tank Header For 13/23G System

Line Truck Parts

Product Overview The 04-30798-001 is a genuine Freightliner DEF tank header designed for 13/23G diesel exhaust fluid system applications. This comp...

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0431353006 Genuine Freightliner DEF Tank Header For SAE Flange

Freightliner

Product Overview The 0431353006 is a genuine Freightliner DEF tank header engineered for diesel exhaust fluid storage and aftertreatment system app...

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2520640C1 Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The 2520640C1 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 ISX/QSX 15-liter engine applications. This Nox Nit...

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5WK96749B Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The 5WK96749B is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 ISX/QSX 15-liter engine applications. This Nox Nit...

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4326874 Genuine Cummins Nox Sensor For ISC ISL 8.9L

Cummins

Product Overview The 4326874 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 ISC 8.9L and ISL 8.9L engine applications. This sens...

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$1,275.00 - $1,275.00
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DC4Z-5J250-D Genuine Ford Module Multifunction DEF Head Unit

Ford

Product Overview The DC4Z-5J250-D is a genuine Ford Module Multifunction DEF Head Unit designed for diesel exhaust fluid system applications. This ...

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$1,275.00 - $1,275.00
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212-571-0006 Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The 212-571-0006 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 ISC 8.9L and ISL 8.9L engine applications. This...

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2872946 Genuine Cummins NOx Nitrogen Oxide Sensor ISC ISL

Cummins

Product Overview The 2872946 is a genuine Cummins NOx Nitrogen Oxide Sensor designed for EPA13 ISC 8.9L and ISL 8.9L engine applications. This NOx ...

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NOXCXX0033 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The NOXCXX0033 is a genuine Cummins NOx nitrogen oxide sensor used on EPA13 8.9L ISC and ISL engine applications. This sensor read...

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9046013 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 9046013 is a genuine Cummins NOx nitrogen oxide sensor used on EPA13 8.9L ISC and ISL engine applications. This sensor measure...

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2900-005 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 2900-005 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 8.9L ISC and ISL engine applications. This sensor r...

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4708010 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 4708010 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 8.9L ISC and ISL engine applications. This sensor mo...

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$399.00 - $399.00
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5EL005 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 5EL005 is a genuine Cummins NOx nitrogen oxide sensor used in diesel exhaust aftertreatment systems. This sensor monitors exha...

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$399.00 - $399.00
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5WK96741B Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 5WK96741B is a genuine Cummins NOx nitrogen oxide sensor used in diesel exhaust aftertreatment systems. This sensor measures N...

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$399.00 - $399.00
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904-6013 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 904-6013 is a genuine Cummins NOx nitrogen oxide sensor used in diesel exhaust aftertreatment systems. This sensor measures ni...

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$399.00 - $399.00
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BTS041775 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The BTS041775 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 8.9L ISC and ISL engine applications. This sensor ...

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$399.00 - $399.00
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$399.00

NOX-CXX-0033 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The NOX-CXX-0033 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 8.9L ISC and ISL engine applications. This sens...

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$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00