2021 Peterbilt 579 Fuel and Emissions Systems

Essential Fuel and Emissions Systems for 2021 Peterbilt 579s

Dorman – HD Solutions – EGR Cooler Gasket Kit (Part No.904-5155)

EGR Cooler Gasket Kit

from

$31.99
Product Features:
  • Direct replacement – this exhaust gas recirculation (EGR) gasket kit matches the original equipment gaskets for this vehicle application
  • Convenient solution – the gaskets in this kit should be replaced whenever repairs are performed on the EGR cooler, intake manifold or oil cooler
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life
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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 – 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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Upgrade your 2021 Peterbilt 579 with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2021 Peterbilt 579, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Peterbilt or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your 579 functioning at its best. At Advance Auto Parts, we offer a wide selection of 2 Fuel and Emissions Systems for the 2021 Peterbilt 579, 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 2021 Peterbilt 579 at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $31.99 to $317.99, with an average price of $174.99. Our 2 Fuel and Emissions Systems in stock come from 2 trusted brands, so you’re sure to find the right part for your 2021 Peterbilt 579 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 2021 Peterbilt 579 is always ready to roll. We’re committed to providing you with everything you need to keep your 579 in top shape, all in one place. Start shopping confidently below for your 2021 Peterbilt 579!

Best-Selling Exhaust Gas Recirculation (EGR) Parts for 2021 Peterbilt 579s

Enhance the driving experience in your Peterbilt with 1 quality Exhaust Gas Recirculation (EGR) Part components, starting at $31.99.

Dorman – HD Solutions – EGR Cooler Gasket Kit (Part No.904-5155)

EGR Cooler Gasket Kit

from

$31.99
Product Features:
  • Direct replacement – this exhaust gas recirculation (EGR) gasket kit matches the original equipment gaskets for this vehicle application
  • Convenient solution – the gaskets in this kit should be replaced whenever repairs are performed on the EGR cooler, intake manifold or oil cooler
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life
See More

Most Popular 2021 Peterbilt 579 Diesel Fuel Injectors

Customize your Peterbilt with 1 Diesel Fuel Injectors products like Diesel Emissions Fluid Filters, all priced under $317.99.

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 2021 Peterbilt 579 Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2021 Peterbilt 579s?

Out of 2 Fuel and Emissions Systems that fit 2021 Peterbilt 579s, the following parts are the top sellers:

What’s the price range for 2021 Peterbilt 579 Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2021 Peterbilt 579 start at $31.99 and go up to $317.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2021 Peterbilt 579?

The average price for Fuel and Emissions Systems for the 2021 Peterbilt 579 is $174.99. 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 Peterbilt 579 model years?

Yes, we currently carry Fuel and Emissions Systems for 11 model years of Peterbilt 579s between 2013 and 2024. Fuel and Emissions Systems are bought most frequently for the following model years: 2023, 2022, 2024, 2020, 2019, 2018, 2017, 2016, and 2015.

What are the cheapest Fuel and Emissions Systems for my 2021 Peterbilt 579?

The cheapest 2021 Peterbilt 579 Fuel and Emissions Systems we carry in stock are:

What types of Fuel and Emissions Systems do you sell for my 2021 Peterbilt 579?

As of 2/5/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2021 Peterbilt 579:

Can I get help with 2021 Peterbilt 579 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 Peterbilt Fuel and Emissions Systems and more.

What is your return policy for Peterbilt 579 Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Peterbilt 579 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.