2014 Peterbilt 384 Diesel Fuel Injectors

Keep Your 2014 Peterbilt 384 in Top Shape with Quality Diesel Fuel Injectors

Whether you’re repairing or upgrading your Diesel Fuel Injector, using high-quality parts is key to keeping your 2014 Peterbilt 384 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Diesel Emissions Filler Caps and Diesel Oxidation Catalysts. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2014 Peterbilt 384 Diesel Fuel Injector at Advance Auto Parts is around $1,072.80, with a range that starts at $23.99 and goes up to $5,008.99. With 5 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like HD DOC, HD DOC, and Heavy Duty Diesel Exhaust Fluid Cap start at just $23.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Diesel Fuel Injector, don’t forget to check out other key components like Fuel Injectors and Fuel Pumps. At Advance Auto Parts, we’re here to help you keep your 2014 Peterbilt 384 in peak condition, inside and out.

Essential 2014 Peterbilt 384 Diesel Fuel Injectors

Dorman – HD Solutions – Heavy Duty Diesel Exhaust Fluid Cap (Part No.904-5401)

Heavy Duty Diesel Exhaust Fluid Cap

from

$23.99
This diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles
  • Restores functionality – reliable replacement for an original cap that is leaking or failed due to wear
  • 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 – Heavy Duty DEF Cap (Part No.904-5401CD)

Heavy Duty DEF Cap

from

$29.99
This diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles
  • Restores functionality – reliable replacement for an original cap that is leaking or failed due to wear
  • 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 – HD Diesel Oxidation Catalyst – Not For Sale – CA (Part No.674-3104)

HD Diesel Oxidation Catalyst - Not For Sale - CA

from

$3519.99
This diesel oxidation catalyst is designed to match the fit and function of the original catalyst on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this diesel oxidation catalyst is designed to match the fit and function of the original catalyst on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to corrosion
  • 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.674-2060)

HD DOC

from

$3535.99
HD DOC

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

HD DOC

from

$3825.99
HD DOC

Dorman – HD Solutions – HD Diesel Oxidation Catalyst – Not For Sale – CA (Part No.674-3103)

HD Diesel Oxidation Catalyst - Not For Sale - CA

from

$3495.99
This diesel oxidation catalyst is designed to match the fit and function of the original catalyst on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this diesel oxidation catalyst is designed to match the fit and function of the original catalyst on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to corrosion
  • 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.674-2122)

HD DOC

from

$5008.99
HD DOC

DAYTON PARTS – HD DOC (Part No.674-2082)

HD DOC

from

$4179.99
HD DOC

Most Popular Diesel Emissions Filler Caps for 2014 Peterbilt 384s

Enhance your 2014 Peterbilt 384 with one of the 2 Diesel Emissions Filler Caps we have in stock, starting at just $23.99.

Dorman – HD Solutions – Heavy Duty DEF Cap (Part No.904-5401CD)

Heavy Duty DEF Cap

from

$29.99
This diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles
  • Restores functionality – reliable replacement for an original cap that is leaking or failed due to wear
  • 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 – Heavy Duty Diesel Exhaust Fluid Cap (Part No.904-5401)

Heavy Duty Diesel Exhaust Fluid Cap

from

$23.99
This diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles
  • Restores functionality – reliable replacement for an original cap that is leaking or failed due to wear
  • 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

Best-Selling 2014 Peterbilt 384 Diesel Oxidation Catalysts

Upgrade your 384 with one of our 3 best-selling Diesel Oxidation Catalysts.

DAYTON PARTS – HD DOC (Part No.674-2122)

HD DOC

from

$5008.99
HD DOC

DAYTON PARTS – HD DOC (Part No.674-2082)

HD DOC

from

$4179.99
HD DOC

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

HD DOC

from

$3825.99
HD DOC

FAQs for 2014 Peterbilt 384 Diesel Fuel Injectors

What are the best-selling Diesel Fuel Injectors for 2014 Peterbilt 384s?

Out of 5 Diesel Fuel Injectors that fit 2014 Peterbilt 384s, the following parts are the top sellers:

What’s the price range for 2014 Peterbilt 384 Diesel Fuel Injectors?

The prices of Diesel Fuel Injectors for the 2014 Peterbilt 384 range from $23.99 up to $5,008.99 for the most premium parts.

What is the average price of a Diesel Fuel Injector for a 2014 Peterbilt 384?

The average price for Diesel Fuel Injectors for the 2014 Peterbilt 384 is $1,072.80. Keep in mind the variety of part types within our Diesel Fuel Injector category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Diesel Fuel Injectors for other Peterbilt 384 model years?

Yes, we carry Diesel Fuel Injectors for 7 model years of Peterbilt 384s between 2008 and 2016. The following model years are the most popular for Diesel Fuel Injector purchases: 2016, 2015, 2013, 2012, 2011, 2010, 2009, and 2008.

What are the cheapest Diesel Fuel Injectors for my 2014 Peterbilt 384?

The cheapest 2014 Peterbilt 384 Diesel Fuel Injectors we carry are:

Does Advance Auto Parts sell Diesel Fuel Injectors for any other 2014 Peterbilt models?

Yes. We stock Diesel Fuel Injectors for 15 other popular 2014 Peterbilt models. Some of the most popular are 2014 567 Diesel Fuel Injectors, 2014 579 Diesel Fuel Injectors, 2014 386 Diesel Fuel Injectors, 2014 367 Diesel Fuel Injectors, and 2014 220 Diesel Fuel Injectors.

What types of Diesel Fuel Injectors do you sell for my 2014 Peterbilt 384?

As of 11/2/25, these are some of the most in-demand types of Diesel Fuel Injectors for a 2014 Peterbilt 384:

Can I get help with 2014 Peterbilt 384 Diesel Fuel Injector orders?

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

What is your return policy for Peterbilt 384 Diesel Fuel Injectors?

Advance Auto Parts keeps returns simple. For new Peterbilt 384 Diesel Fuel Injectors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.