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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

$375.00 - $375.00
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$375.00 - $375.00
$375.00

4197240C93 Genuine International DEF 7 Gallon Tank Conversion Assembly

International

Product Overview The 4197240C93 is a genuine International DEF 7-gallon tank conversion assembly designed for diesel exhaust fluid system applicati...

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$375.00 - $375.00
$375.00
$375.00 - $375.00
$375.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00

2872236 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 2872236 is a genuine Cummins NOx nitrogen oxide sensor engineered for EPA13 8.9L ISC and ISL engine applications. It detects n...

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$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00

2894944 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 2894944 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 8.9L ISC and ISL engine applications. This component...

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$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
$1,029.00 - $1,029.00
$1,029.00
$1,029.00 - $1,029.00
$1,029.00

OW90035845PS Genuine Kalmar Ottawa DEF Sensor Head Assembly 11.6 Inch

Kalmar Ottawa

Product Overview The OW90035845PS is a genuine Kalmar Ottawa DEF sensor head assembly designed for specified DEF system applications. This multipur...

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$1,029.00 - $1,029.00
$1,029.00
$1,029.00 - $1,029.00
$1,029.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00

4984053 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 4984053 is a genuine Cummins NOx nitrogen oxide sensor engineered for EPA13 8.9L ISC and ISL engine applications. It monitors ...

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$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00

4984576 Genuine Cummins NOx Nitrogen Oxide Sensor

Cummins

Product Overview The 4984576 is a genuine Cummins NOx nitrogen oxide sensor developed for EPA13 8.9L ISC and ISL engine applications. This sensor c...

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$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00

S11939 Genuine Cummins NOx Nitrogen Oxide Sensor For EPA13 ISC ISL Engines

Cummins

Product Overview The S11939 is a genuine Cummins NOx nitrogen oxide sensor designed for EPA13 8.9L ISC and ISL engine applications. This sensor con...

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$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00

1009212002 Genuine RevFireGroup DEF Sensor Head Control Manifold

REV Group

Product Overview The 1009212002 is a genuine RevFireGroup control manifold designed for diesel exhaust fluid system applications. This multifunctio...

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$1,099.00 - $1,099.00
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$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00

0431354001 Genuine Freightliner DEF Level Header 17.8 Inch

Freightliner

Product Overview The 0431354001 is a genuine Freightliner DEF level header developed for diesel exhaust fluid tank applications. This component is ...

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$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00
$1,175.00 - $1,175.00
$1,175.00
$1,175.00 - $1,175.00
$1,175.00

0430798001 Genuine Freightliner DEF Tank Header For 13/23G System

Line Truck Parts

Product Overview The 0430798001 is a genuine Freightliner DEF tank header engineered for 13/23G diesel exhaust fluid system applications. Installed...

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$1,175.00 - $1,175.00
$1,175.00
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$1,175.00

04-31677-001 Genuine Freightliner DEF Header 13/23G

Freightliner

Product Overview The 04-31677-001 is a genuine Freightliner DEF Header 13/23G designed for diesel exhaust fluid system applications. This DEF heade...

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$1,175.00 - $1,175.00
$1,175.00
$1,175.00 - $1,175.00
$1,175.00
$249.00 - $249.00
$249.00
$249.00 - $249.00
$249.00

2888112 Genuine Cummins Doser Injector Fuel System

Cummins

Product Overview The 2888112 is a genuine Cummins Doser Injector designed for XPI fuel system 6.7L engine applications. This doser injector operate...

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$249.00 - $249.00
$249.00
$249.00 - $249.00
$249.00
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00

5WK96691A Genuine Cummins NOx Sensor For ISB Engines

Cummins

Product Overview The 5WK96691A is a genuine Cummins nitrogen oxide (NOx) sensor designed for EPA13 ISB, ISC, and ISL diesel engine applications. Th...

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

1953530 Genuine Cummins Nitrogen Oxide NOx Sensor

Cummins

Product Overview The 1953530 is a genuine Cummins nitrogen oxide (NOx) sensor designed for diesel engine emissions system applications. This sensor...

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$877.00 - $877.00
$877.00
$877.00 - $877.00
$877.00
Image #1
$648.00 - $648.00
$648.00
$648.00 - $648.00
$648.00

2272104PEX Genuine Paccar DEF Doser Injector SCR Module

Paccar

Product Overview The 2272104PEX is a genuine Paccar DEF Doser Injector SCR designed for diesel exhaust fluid dosing system applications. This DEF d...

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$648.00 - $648.00
$648.00
$648.00 - $648.00
$648.00
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00

4326869 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 4326869 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for Cummins diesel engine emissions system applications. This ...

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$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00

2872947 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 2872947 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for Cummins diesel engine emissions system applications. This ...

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$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00

5WK9 6753 Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The 5WK9 6753 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for Cummins diesel engine emissions system applications. Thi...

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$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00

1112302-002 Genuine RevFireGroup DEF Sensor Head Control Manifold

REV Group

Product Overview The 1112302-002 is a genuine RevFireGroup DEF sensor head designed for diesel exhaust fluid system applications. This multifunctio...

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$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00

A2C89788900-02 Genuine Cummins Nox Nitrogen Oxide Sensor

Cummins

Product Overview The A2C89788900-02 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for Cummins diesel engine emissions system applications...

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$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
Image #1
$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00

2512835C1 Genuine International DEF Tank Level Sensor For 9-Gallon DEF Tank

International

Product Overview The 2512835C1 is a genuine International DEF tank level sensor designed for 9-gallon diesel exhaust fluid tank applications. This ...

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$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00
$368.00 - $368.00
$368.00
$368.00 - $368.00
$368.00

4326872 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

Cummins

Product Overview The 4326872 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for select Peterbilt and Ottawa truck applications with Cummin...

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$368.00 - $368.00
$368.00
$368.00 - $368.00
$368.00
Image #1
$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00

2520612C1 Genuine International DEF Tank Level Sensor For 9-Gallon DEF Tank

International

Product Overview The 2520612C1 is a genuine International DEF tank level sensor designed for 9-gallon diesel exhaust fluid tank applications. This ...

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$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00

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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$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00