2014 Mack LEU Fuel and Emissions Systems

Essential Fuel and Emissions Systems for 2014 Mack LEUs

Dorman – HD Solutions – Exhaust Gas Recirculation Tube (Part No.598-5944)

Exhaust Gas Recirculation Tube

from

$576.99
This EGR cooler hose is designed to match the fit and function of the original hose on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this EGR cooler hose is designed to match the fit and function of the original hose on specified vehicles
  • Restores functionality – reliable replacement for an original hose that has failed due to heat or vibration
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

DAYTON PARTS – HD DOC (Part No.674-2114)

HD DOC

from

$3825.99
HD DOC

Dorman – HD Solutions – Dpf Differential Pressure Sensor (Part No.904-7127)

Dpf Differential Pressure Sensor

from

$141.99
This DPF differential pressure sensor is designed to match the fit and function of the original part on specified makes, years and models, and is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this replacement exhaust gas differential pressure sensor, also known as a diesel particulate filter (DPF) sensor, is designed to match the fit and function of the original sensor on specified makes, years and models
  • Restores functionality – reliable replacement for an original sensor that has broken, burned out, corroded or otherwise stopped working
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Carquest Premium – Diesel Exhaust Fluid Filter for SCR Systems (Part No.96679)

Diesel Exhaust Fluid Filter for SCR Systems

from

$108.99
Carquest Premium Diesel Exhaust Fluid (DEF) Filters help reduce harmful emissions and improve air quality. DEF filters remove impurities such as dirt, debris, and particulates from the diesel exhaust fluid before entering your vehicle’s emission control system. These filters allow clean fluid to break down harmful nitrogen oxide (NOx) gases produced during diesel combustion. By ensuring proper DEF flow and helping protect system components, DEF filters help diesel engines meet strict emission standards. Carquest Premium Diesel Exhaust Fluid (DEF) Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Contains Plug and Filter Removal Tool
See More

Dorman – HD Solutions – Fuel Doser 7th Injector (Part No.904-7915)

Fuel Doser 7th Injector

from

$185.99
This hydrocarbon injector nozzle restores critical dosing function to the vehicle’s emissions system by injecting fuel into the exhaust stream during the regeneration cycles to remove excess carbon build up from the diesel particulate filter.

Product Features:
  • Ideal replacement – this hydrocarbon injector nozzle is a direct replacement for a worn or fouled original equipment injector nozzle on select vehicles
  • Durable construction – this doser injector is made of quality materials for reliable performance and a long service life
  • Restores regeneration – fixes aftertreatment issues caused by a clogged injector that stops injecting fuel downstream properly
  • Trustworthy quality – backed by a team of product engineers and experts in the United States with more than a century of experience
See More

Dorman – HD Solutions – DEF Tank Filler Neck Filter (Part No.904-7938)

DEF Tank Filler Neck Filter

from

$67.99
This diesel exhaust fluid (DEF) filler neck filter is designed to match the fit and function of the original filter on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this diesel exhaust fluid (DEF) filler neck filter is designed to match the fit and function of the original filter on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to clogging
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – HD Solutions – Exhaust Gas Recirculation Pressure Sensor (Part No.904-8036)

Exhaust Gas Recirculation Pressure Sensor

from

$211.99
This replacement EGR pressure feedback sensor matches the fit and function of the original part on specified vehicles. It uses a factory-style connector for plug-and-play installation.

Product Features:
  • Ideal replacement – this EGR pressure sensor directly replaces the original part on specified vehicle years, makes and models
  • Durable construction – this sensor is made from quality materials for durability and uses a factory style plug for easy installation
  • Quality engineering – designed in the United States and backed by decades of automotive aftermarket experience
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
See More

Dorman – HD Solutions – Exhaust Gas Recirculation Temperature Sensor (Part No.904-7118)

Exhaust Gas Recirculation Temperature Sensor

from

$116.99
This exhaust gas recirculation (EGR) temperature sensor is designed to match the function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:
  • Direct replacement – this EGR valve temperature sensor is designed to match the fit and function of an original sensor on specified vehicles
  • Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Dorman – HD Solutions – Oil Pressure Sensor (Part No.904-7453)

Oil Pressure Sensor

from

$178.99
This replacement pressure sensor is a direct replacement for an original equipment sensor for the specified applications. It is ruggedly designed and built to withstand required operating pressures and temperatures for reliable performance.

Product Features:
  • Ideal replacement – this multi-purpose pressure sensor directly replaces the original sensor on specified vehicles and applications
  • Durable construction – this sensor is specifically designed to withstand pressure and temperature extremes for reliable performance and accurate measurement
  • Cost-effective solution – offers original equipment fit and function at a competitive price
  • Trustworthy quality – backed by a team of designers and engineers in the United States
See More

Upgrade your 2014 Mack LEU with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2014 Mack LEU, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mack or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your LEU functioning at its best. At Advance Auto Parts, we offer a wide selection of 9 Fuel and Emissions Systems for the 2014 Mack LEU, designed to meet your needs without breaking the bank. From Diesel Fuel Injector replacements to Exhaust Gas Recirculation (EGR) Parts upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Fuel and Emissions Systems for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Fuel and Emissions Systems for your 2014 Mack LEU at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $67.99 to $3,825.99, with an average price of $548.39. Our 9 Fuel and Emissions Systems in stock come from 3 trusted brands, so you’re sure to find the right part for your 2014 Mack LEU without overspending.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Fuel and Emissions System upgrades. Explore related part types like Batteries and Chargers, Fluids and Chemicals and more to make sure your 2014 Mack LEU is always ready to roll. We’re committed to providing you with everything you need to keep your LEU in top shape, all in one place. Start shopping confidently below for your 2014 Mack LEU!

Best-Selling Diesel Fuel Injectors for 2014 Mack LEUs

Enhance the driving experience in your Mack with 1 quality Diesel Fuel Injector components, starting at $3,825.99.

DAYTON PARTS – HD DOC (Part No.674-2114)

HD DOC

from

$3825.99
HD DOC

Most Popular 2014 Mack LEU Exhaust Gas Recirculation (EGR) Parts

Customize your Mack with 4 Exhaust Gas Recirculation (EGR) Parts products like EGR Pressure Feedback Sensors, EGR Lines, and Exhaust Gas Differential Pressure Sensors, all priced under $576.99.

Dorman – HD Solutions – Dpf Differential Pressure Sensor (Part No.904-7127)

Dpf Differential Pressure Sensor

from

$141.99
This DPF differential pressure sensor is designed to match the fit and function of the original part on specified makes, years and models, and is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this replacement exhaust gas differential pressure sensor, also known as a diesel particulate filter (DPF) sensor, is designed to match the fit and function of the original sensor on specified makes, years and models
  • Restores functionality – reliable replacement for an original sensor that has broken, burned out, corroded or otherwise stopped working
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – HD Solutions – Exhaust Gas Recirculation Tube (Part No.598-5944)

Exhaust Gas Recirculation Tube

from

$576.99
This EGR cooler hose is designed to match the fit and function of the original hose on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this EGR cooler hose is designed to match the fit and function of the original hose on specified vehicles
  • Restores functionality – reliable replacement for an original hose that has failed due to heat or vibration
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – HD Solutions – Exhaust Gas Recirculation Pressure Sensor (Part No.904-8036)

Exhaust Gas Recirculation Pressure Sensor

from

$211.99
This replacement EGR pressure feedback sensor matches the fit and function of the original part on specified vehicles. It uses a factory-style connector for plug-and-play installation.

Product Features:
  • Ideal replacement – this EGR pressure sensor directly replaces the original part on specified vehicle years, makes and models
  • Durable construction – this sensor is made from quality materials for durability and uses a factory style plug for easy installation
  • Quality engineering – designed in the United States and backed by decades of automotive aftermarket experience
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
See More

Dorman – HD Solutions – Exhaust Gas Recirculation Temperature Sensor (Part No.904-7118)

Exhaust Gas Recirculation Temperature Sensor

from

$116.99
This exhaust gas recirculation (EGR) temperature sensor is designed to match the function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:
  • Direct replacement – this EGR valve temperature sensor is designed to match the fit and function of an original sensor on specified vehicles
  • Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Top Picks for 2014 Mack LEU Fuel Sensors

Upgrade Mack LEUs with top-quality Fuel Sensors parts, including 1 OEM and aftermarket selections for your 2014 model.

Dorman – HD Solutions – Oil Pressure Sensor (Part No.904-7453)

Oil Pressure Sensor

from

$178.99
This replacement pressure sensor is a direct replacement for an original equipment sensor for the specified applications. It is ruggedly designed and built to withstand required operating pressures and temperatures for reliable performance.

Product Features:
  • Ideal replacement – this multi-purpose pressure sensor directly replaces the original sensor on specified vehicles and applications
  • Durable construction – this sensor is specifically designed to withstand pressure and temperature extremes for reliable performance and accurate measurement
  • Cost-effective solution – offers original equipment fit and function at a competitive price
  • Trustworthy quality – backed by a team of designers and engineers in the United States
See More

In-Demand Diesel Emission Parts for 2014 Mack LEUs

Select from 2 premium Diesel Emission Parts parts for your 2014 Mack LEU, with prices ranging from $67.99 to $108.99.

Carquest Premium – Diesel Exhaust Fluid Filter for SCR Systems (Part No.96679)

Diesel Exhaust Fluid Filter for SCR Systems

from

$108.99
Carquest Premium Diesel Exhaust Fluid (DEF) Filters help reduce harmful emissions and improve air quality. DEF filters remove impurities such as dirt, debris, and particulates from the diesel exhaust fluid before entering your vehicle’s emission control system. These filters allow clean fluid to break down harmful nitrogen oxide (NOx) gases produced during diesel combustion. By ensuring proper DEF flow and helping protect system components, DEF filters help diesel engines meet strict emission standards. Carquest Premium Diesel Exhaust Fluid (DEF) Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Contains Plug and Filter Removal Tool
See More

Dorman – HD Solutions – DEF Tank Filler Neck Filter (Part No.904-7938)

DEF Tank Filler Neck Filter

from

$67.99
This diesel exhaust fluid (DEF) filler neck filter is designed to match the fit and function of the original filter on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this diesel exhaust fluid (DEF) filler neck filter is designed to match the fit and function of the original filter on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to clogging
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Most Sold 2014 Mack LEU Fuel Injectors

Explore our best-selling Mack parts for the 2014 LEU among 1 OEM and aftermarket options starting from $185.99.

Dorman – HD Solutions – Fuel Doser 7th Injector (Part No.904-7915)

Fuel Doser 7th Injector

from

$185.99
This hydrocarbon injector nozzle restores critical dosing function to the vehicle’s emissions system by injecting fuel into the exhaust stream during the regeneration cycles to remove excess carbon build up from the diesel particulate filter.

Product Features:
  • Ideal replacement – this hydrocarbon injector nozzle is a direct replacement for a worn or fouled original equipment injector nozzle on select vehicles
  • Durable construction – this doser injector is made of quality materials for reliable performance and a long service life
  • Restores regeneration – fixes aftertreatment issues caused by a clogged injector that stops injecting fuel downstream properly
  • Trustworthy quality – backed by a team of product engineers and experts in the United States with more than a century of experience
See More

FAQs for 2014 Mack LEU Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2014 Mack LEUs?

Out of 9 Fuel and Emissions Systems that fit 2014 Mack LEUs, the following parts are the top sellers:

What’s the price range for 2014 Mack LEU Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2014 Mack LEU start at $67.99 and go up to $3,825.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2014 Mack LEU?

The average price for Fuel and Emissions Systems for the 2014 Mack LEU is $548.39. Keep in mind the variety of part types within our Fuel and Emissions System category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Fuel and Emissions Systems for other Mack LEU model years?

Yes, we currently carry Fuel and Emissions Systems for 7 model years of Mack LEUs between 2008 and 2016. Fuel and Emissions Systems are bought most frequently for the following model years: 2016, 2015, 2013, 2012, 2011, 2010, 2009, and 2008.

What are the cheapest Fuel and Emissions Systems for my 2014 Mack LEU?

The cheapest 2014 Mack LEU Fuel and Emissions Systems we carry in stock are:

What types of Fuel and Emissions Systems do you sell for my 2014 Mack LEU?

As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2014 Mack LEU:

Can I get help with 2014 Mack LEU Fuel and Emissions System orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Mack Fuel and Emissions Systems and more.

What is your return policy for Mack LEU Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Mack LEU Fuel and Emissions Systems and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.