2018 Peterbilt 320 Diesel Fuel Injectors
Keep Your 2018 Peterbilt 320 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 2018 Peterbilt 320 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 Emissions Fluid Filters. 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 2018 Peterbilt 320 Diesel Fuel Injector at Advance Auto Parts is around $54.08, with a range that starts at $23.99 and goes up to $324.99. With 3 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Heavy Duty DEF Cap, Heavy Duty Diesel Exhaust Fluid Cap, and Diesel Exhaust Fluid Filter Kit 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 2018 Peterbilt 320 in peak condition, inside and out.
Find Your Specific 2018 Peterbilt 320 Diesel Fuel Injectors
Looking for the perfect Diesel Fuel Injector for your 2018 Peterbilt 320? You’re in the right place. Below, you’ll find links to various types of Diesel Fuel Injectors that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Diesel Fuel Injectors, ensuring durability and a precise fit for your Peterbilt 320. Whether you’re driving a 2018 model or another popular model year like
2009,
2010,
2011,
2012,
2013,
2014,
2015,
2016, and
2017, we’ve got you covered. Purchasing Diesel Fuel Injectors from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Diesel Fuel Injectors that fit your vehicle.
Essential 2018 Peterbilt 320 Diesel Fuel Injectors
Dorman – HD Solutions – Heavy Duty Diesel Exhaust Fluid Cap (Part No.904-5401)
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:
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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
Dorman – HD Solutions – Heavy Duty DEF Cap (Part No.904-5401CD)
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:
See More
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
Carquest Premium – Diesel Exhaust Fluid Filter Kit (Part No.96877)
from
$324.99
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:
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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
Popular 2018 Peterbilt 320 Diesel Fuel Injectors Categories
Most Popular Diesel Emissions Filler Caps for 2018 Peterbilt 320s
Enhance your 2018 Peterbilt 320 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)
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:
See More
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
Dorman – HD Solutions – Heavy Duty Diesel Exhaust Fluid Cap (Part No.904-5401)
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:
See More
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
Best-Selling 2018 Peterbilt 320 Diesel Emissions Fluid Filter
Upgrade your 320 with our best-selling Diesel Emissions Fluid Filter.
Carquest Premium – Diesel Exhaust Fluid Filter Kit (Part No.96877)
from
$324.99
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:
See More
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
FAQs for 2018 Peterbilt 320 Diesel Fuel Injectors
What are the best-selling Diesel Fuel Injectors for 2018 Peterbilt 320s?
Out of 3 Diesel Fuel Injectors that fit 2018 Peterbilt 320s, the following parts are the top sellers:
- Heavy Duty DEF Cap (50207747) – $29.99
- Heavy Duty Diesel Exhaust Fluid Cap (10567784) – $23.99
- Diesel Exhaust Fluid Filter Kit (12501680) – $324.99
What’s the price range for 2018 Peterbilt 320 Diesel Fuel Injectors?
The prices of Diesel Fuel Injectors for the 2018 Peterbilt 320 range from $23.99 up to $324.99 for the most premium parts.
What is the average price of a Diesel Fuel Injector for a 2018 Peterbilt 320?
The average price for Diesel Fuel Injectors for the 2018 Peterbilt 320 is $54.08. 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 320 model years?
What are the cheapest Diesel Fuel Injectors for my 2018 Peterbilt 320?
The cheapest 2018 Peterbilt 320 Diesel Fuel Injectors we carry are:
- Heavy Duty Diesel Exhaust Fluid Cap (10567784) – $23.99
- Heavy Duty DEF Cap (50207747) – $29.99
- Diesel Exhaust Fluid Filter Kit (12501680) – $324.99
Does Advance Auto Parts sell Diesel Fuel Injectors for any other 2018 Peterbilt models?
Yes. We stock Diesel Fuel Injectors for 8 other popular 2018 Peterbilt models. Some of the most popular are 2018 567 Diesel Fuel Injectors, 2018 579 Diesel Fuel Injectors, 2018 367 Diesel Fuel Injectors, 2018 330 Diesel Fuel Injectors, and 2018 365 Diesel Fuel Injectors.
What types of Diesel Fuel Injectors do you sell for my 2018 Peterbilt 320?
As of 11/2/25, these are some of the most in-demand types of Diesel Fuel Injectors for a 2018 Peterbilt 320:
Can I get help with 2018 Peterbilt 320 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 320 Diesel Fuel Injectors?
Advance Auto Parts keeps returns simple. For new Peterbilt 320 Diesel Fuel Injectors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.