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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

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

2900005 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 2900005 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 8.9L ISC and ISL engine applications. This sensor me...

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$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00
$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00

2872944 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 2872944 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 15-liter ISX and QSX engine applications. This senso...

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$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00

212-075-1017 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 212-075-1017 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 15-liter ISX and QSX engine applications. This ...

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$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00

212-075-1007 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 212-075-1007 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 15-liter ISX and QSX engine applications. This ...

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$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00

2872081 Genuine Cummins NOx Sensor For Cummins Engines

Cummins

Product Overview The 2872081 is a genuine Cummins NOx sensor designed for Cummins engine applications. This sensor is part of the exhaust emissions...

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00
$489.00 - $489.00
$489.00
$489.00 - $489.00
$489.00

4326864 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 4326864 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for OEM emissions system applications. This sensor operates wi...

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$489.00 - $489.00
$489.00
$489.00 - $489.00
$489.00
$489.00 - $489.00
$489.00
$489.00 - $489.00
$489.00

2872943 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 2872943 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for OEM emissions system applications. This sensor operates wi...

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$489.00 - $489.00
$489.00
$489.00 - $489.00
$489.00
$489.00 - $489.00
$489.00
$489.00 - $489.00
$489.00

4326472 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 4326472 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for OEM emissions system applications. This sensor operates wi...

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$489.00 - $489.00
$489.00
$489.00 - $489.00
$489.00
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00

4326868 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 4326868 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 8.9-liter ISC/ISL engine applications. This sensor o...

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$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00

1004-1041 Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The 1004-1041 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 8.9-liter ISC/ISL engine applications. This sensor...

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$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00

5WK96752B Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The 5WK96752B is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 8.9-liter ISC/ISL engine applications. This sensor...

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$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00

A044C669 Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The A044C669 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 8.9-liter ISC/ISL engine applications. This sensor ...

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$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00

A045S162 Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The A045S162 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for OEM emissions system applications. This sensor operates w...

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$419.00 - $419.00
$419.00
$419.00 - $419.00
$419.00
$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00

4326870 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 4326870 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 15-liter ISX/QSX engine applications. This sensor op...

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$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00

3687930 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 3687930 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for OEM emissions system applications. This sensor operates wi...

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$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
$1,049.00 - $1,049.00
$1,049.00
$1,049.00 - $1,049.00
$1,049.00

82-60670-000 Genuine Gillig Cummins DEF Multifunction Head Unit

Gillig Cummins

Product Overview The 82-60670-000 is a genuine Gillig Cummins DEF multifunction head unit designed for diesel exhaust fluid storage and delivery s...

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$1,049.00 - $1,049.00
$1,049.00
$1,049.00 - $1,049.00
$1,049.00
Sold out
$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00

5011806 Genuine Blue Bird DEF Header

Blue Bird

Product Overview The 5011806 is a genuine Blue Bird DEF header designed for diesel exhaust fluid storage and delivery systems. This assembly monito...

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$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00
Sold out
$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00

2894941 Genuine Cummins NOx Sensor

Cummins

Product Overview The 2894941 is a genuine Cummins NOx sensor developed for compatible Cummins engine applications. Operating within the exhaust aft...

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00
$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00

2139930 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 2139930 is a genuine Cummins NOx nitrogen oxide sensor designed for diesel exhaust aftertreatment systems. This sensor measure...

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$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00
$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00

3687334 Genuine Cummins NOx Sensor For Cummins Engines

Cummins

Product Overview The 3687334 is a genuine Cummins NOx sensor designed for Cummins engine applications. This sensor operates within the emissions co...

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00
$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00

5WK97348A Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 5WK97348A is a genuine Cummins NOx nitrogen oxide sensor used in diesel exhaust aftertreatment systems. This sensor measures e...

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$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00

A2C95995700-01 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The A2C95995700-01 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 8.9L ISC and ISL engine applications. It cont...

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$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00

A045H141 Genuine Cummins NOx Nitrogen Oxide Sensor For EPA13 ISC ISL Engines

Cummins

Product Overview The A045H141 is a genuine Cummins NOx nitrogen oxide sensor used for EPA13 8.9L ISC and ISL emissions applications. This sensor me...

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$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00

2894939 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 2894939 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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$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00