2018 Freightliner MT45 Fuel and Emissions Systems

Essential Fuel and Emissions Systems for 2018 Freightliner MT45s

Carquest Premium – Diesel Exh Fluid Kit (Part No.96877)

Diesel Exh Fluid Kit

from

$317.99
Carquest Diesel Exhaust Fluid (DEF) Filters remove contaminants to ensure proper function of your vehicle’s Selective Catalytic Reduction (SCR) system.

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Contains Frost Compensation Membrane, Spray Lubricant, Instruction Sheet
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Carquest Premium – Carquest Diesel Exhaust Fluid Filter for SCR Systems (Part No.96679)

Carquest Diesel Exhaust Fluid Filter for SCR Systems

from

$106.99
Carquest Diesel Exhaust Fluid (DEF) Filters remove contaminants to ensure proper function of your vehicle’s Selective Catalytic Reduction (SCR) system.

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Contains Plug and Filter Removal Tool
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Carquest Premium – DEF Fuel Cap (Part No.10855)

DEF Fuel Cap

from

$14.29
Effectively prevent diesel exhaust fluid from leaking or spilling through the filler neck. Essential for helping to keep pollutants out of the environment. Replacement restores the diesel emissions fluid system to proper operation.

Product Features:
  • Constructed from high- quality, heat-resistant materials for long-life durability
  • Important replacement item to pass inspection in certain states
  • Designed for optimum fit
  • Meets or exceeds all OEM specifications
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Carquest Premium – Locking DEF Cap (Part No.10525)

Locking DEF Cap

from

$28.99
Effectively prevent diesel exhaust fluid from leaking or spilling through the filler neck. Essential for helping to keep pollutants out of the environment. Replacement restores the diesel emissions fluid system to proper operation.

Product Features:
  • Constructed from high- quality, heat-resistant materials for long-life durability
  • Important replacement item to pass inspection in certain states
  • Designed for optimum fit
  • Meets or exceeds all OEM specifications
See More

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

Dpf Differential Pressure Sensor

from

$128.99
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
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Upgrade your 2018 Freightliner MT45 with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2018 Freightliner MT45, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Freightliner or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your MT45 functioning at its best. At Advance Auto Parts, we offer a wide selection of 4 Fuel and Emissions Systems for the 2018 Freightliner MT45, designed to meet your needs without breaking the bank. From Exhaust Gas Recirculation (EGR) Part replacements to Diesel Fuel Injectors 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 2018 Freightliner MT45 at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $14.29 to $317.99, with an average price of $108.15. Our 4 Fuel and Emissions Systems in stock come from 2 trusted brands, so you’re sure to find the right part for your 2018 Freightliner MT45 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 2018 Freightliner MT45 is always ready to roll. We’re committed to providing you with everything you need to keep your MT45 in top shape, all in one place. Start shopping confidently below for your 2018 Freightliner MT45!

Best-Selling Exhaust Gas Recirculation (EGR) Parts for 2018 Freightliner MT45s

Enhance the driving experience in your Freightliner with 1 quality Exhaust Gas Recirculation (EGR) Part components, starting at $128.99.

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

Dpf Differential Pressure Sensor

from

$128.99
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

Most Popular 2018 Freightliner MT45 Diesel Fuel Injectors

Customize your Freightliner with 3 Diesel Fuel Injectors products like Diesel Emissions Filler Caps and Diesel Emissions Fluid Filters, all priced under $317.99.

Carquest Premium – Locking DEF Cap (Part No.10525)

Locking DEF Cap

from

$28.99
Effectively prevent diesel exhaust fluid from leaking or spilling through the filler neck. Essential for helping to keep pollutants out of the environment. Replacement restores the diesel emissions fluid system to proper operation.

Product Features:
  • Constructed from high- quality, heat-resistant materials for long-life durability
  • Important replacement item to pass inspection in certain states
  • Designed for optimum fit
  • Meets or exceeds all OEM specifications
See More

Carquest Premium – DEF Fuel Cap (Part No.10855)

DEF Fuel Cap

from

$14.29
Effectively prevent diesel exhaust fluid from leaking or spilling through the filler neck. Essential for helping to keep pollutants out of the environment. Replacement restores the diesel emissions fluid system to proper operation.

Product Features:
  • Constructed from high- quality, heat-resistant materials for long-life durability
  • Important replacement item to pass inspection in certain states
  • Designed for optimum fit
  • Meets or exceeds all OEM specifications
See More

Carquest Premium – Diesel Exh Fluid Kit (Part No.96877)

Diesel Exh Fluid Kit

from

$317.99
Carquest Diesel Exhaust Fluid (DEF) Filters remove contaminants to ensure proper function of your vehicle’s Selective Catalytic Reduction (SCR) system.

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Contains Frost Compensation Membrane, Spray Lubricant, Instruction Sheet
See More

FAQs for 2018 Freightliner MT45 Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2018 Freightliner MT45s?

Out of 4 Fuel and Emissions Systems that fit 2018 Freightliner MT45s, the following parts are the top sellers:

What’s the price range for 2018 Freightliner MT45 Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2018 Freightliner MT45 start at $14.29 and go up to $317.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2018 Freightliner MT45?

The average price for Fuel and Emissions Systems for the 2018 Freightliner MT45 is $108.15. 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 Freightliner MT45 model years?

Yes, we currently carry Fuel and Emissions Systems for 25 model years of Freightliner MT45s between 1998 and 2024. Fuel and Emissions Systems are bought most frequently for the following model years: 2022, 2021, 2019, 2017, 2016, 2015, 2014, 2013, and 2012.

What are the cheapest Fuel and Emissions Systems for my 2018 Freightliner MT45?

The cheapest 2018 Freightliner MT45 Fuel and Emissions Systems we carry in stock are:

What types of Fuel and Emissions Systems do you sell for my 2018 Freightliner MT45?

As of 2/5/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2018 Freightliner MT45:

Can I get help with 2018 Freightliner MT45 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 Freightliner Fuel and Emissions Systems and more.

What is your return policy for Freightliner MT45 Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Freightliner MT45 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.