2021 Freightliner MC Line Fluids
Keep Your 2021 Freightliner MC Line in Top Shape with Quality Fluids
Whether you’re repairing or upgrading your Fluid, using high-quality parts is key to keeping your 2021 Freightliner MC Line looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Diesel Emissions Fluids. 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 2021 Freightliner MC Line Fluid at Advance Auto Parts is around $19.99, with a range that starts at $9.99 and goes up to $29.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Diesel Exhaust Fluid (DEF): 2.5 Gallon and PLATINUM Diesel Exhaust Fluid, 2.5 Gallon start at just $9.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Fluid, don’t forget to check out other key components like Coolant/Antifreeze. At Advance Auto Parts, we’re here to help you keep your 2021 Freightliner MC Line in peak condition, inside and out.
Find Your Specific 2021 Freightliner MC Line Fluids
Looking for the perfect Fluid for your 2021 Freightliner MC Line? You’re in the right place. Below, you’ll find links to various types of Fluids that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Fluids, ensuring durability and a precise fit for your Freightliner MC Line. Whether you’re driving a 2021 model or another popular model year like
2014,
2015,
2016,
2017,
2018,
2019,
2020,
2022, and
2023, we’ve got you covered. Purchasing Fluids 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 Fluids that fit your vehicle.
Essential 2021 Freightliner MC Line Fluids
PEAK – Blue DEF Diesel Exhaust Fluid, 2.5 Gallon (Part No.DEF002)
from
$21.99
PEAK BlueDEF Diesel Exhaust Fluid is a mixture of high purity synthetic urea and deionized water that is used in Selective Catalytic Reduction (SCR) systems in diesel vehicles. DEF is used to help convert NOx to harmless nitrogen and water.
Product Features:
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Product Features:
- BlueDEF’s Purity Guarantee is our assurance the DEF your are purchasing has been tested to meet or exceed the strictest OEM standards
- America’s #1 brand of Diesel Exhaust Fluid
- Conforms to the ISO-22241-1 specification for DEF, and is an American Petroleum Institute (API) certified diesel exhaust fluid
- Compatible with all diesel SCR systems
- Non-flammable formula makes handling safe and easy
BlueDEF – PLATINUM Diesel Exhaust Fluid, 2.5 Gallon (Part No.DEG002)
from
$29.99
PEAK BlueDEF PLATINUM with advanced SYSTEM SHIELD technology is a groundbreaking premium Diesel Exhaust Fluid with a proprietary formula to tackle deposits that can build up in the SCR system.
Product Features:
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Product Features:
- Uses advanced SYSTEM SHIELD technology to reduce future deposits
- Maintains optimum fuel economy
- Saves money on costly repairs
- Sustains the life of your SCR system
- Compatible with all diesel SCR systems
- Tested to meet or exceed the strictest OEM standards
- Conforms to the ISO-22241-1 specification for DEF, and is an American Petroleum Institute (API) certified diesel exhaust fluid
- America’s No. 1 brand of Diesel Exhaust Fluid
FRAM – Diesel Exhaust Fluid (DEF): 2.5 Gallon (Part No.457)
from
$9.99
FRAM Diesel Exhaust Fluid (DEF) is a non-toxic solution engineered to help diesel-powered vehicles reduce emissions and improve fuel economy.
Product Features:
See More
Product Features:
- For use in Selective Catalytic Reduction (SCR) systems on diesel engines.
- Diesel exhaust fluid is non-toxic and safe to handle
- Stable, colorless and odorless, and also meets ISO Standards 22241 for purity and composition
Popular 2021 Freightliner MC Line Fluids Categories
Most Popular Diesel Emissions Fluids for 2021 Freightliner MC Lines
Enhance your 2021 Freightliner MC Line with one of the 2 Diesel Emissions Fluids we have in stock, starting at just $9.99.
FRAM – Diesel Exhaust Fluid (DEF): 2.5 Gallon (Part No.457)
from
$9.99
FRAM Diesel Exhaust Fluid (DEF) is a non-toxic solution engineered to help diesel-powered vehicles reduce emissions and improve fuel economy.
Product Features:
See More
Product Features:
- For use in Selective Catalytic Reduction (SCR) systems on diesel engines.
- Diesel exhaust fluid is non-toxic and safe to handle
- Stable, colorless and odorless, and also meets ISO Standards 22241 for purity and composition
BlueDEF – PLATINUM Diesel Exhaust Fluid, 2.5 Gallon (Part No.DEG002)
from
$29.99
PEAK BlueDEF PLATINUM with advanced SYSTEM SHIELD technology is a groundbreaking premium Diesel Exhaust Fluid with a proprietary formula to tackle deposits that can build up in the SCR system.
Product Features:
See More
Product Features:
- Uses advanced SYSTEM SHIELD technology to reduce future deposits
- Maintains optimum fuel economy
- Saves money on costly repairs
- Sustains the life of your SCR system
- Compatible with all diesel SCR systems
- Tested to meet or exceed the strictest OEM standards
- Conforms to the ISO-22241-1 specification for DEF, and is an American Petroleum Institute (API) certified diesel exhaust fluid
- America’s No. 1 brand of Diesel Exhaust Fluid
FAQs for 2021 Freightliner MC Line Fluids
What are the best-selling Fluids for 2021 Freightliner MC Lines?
Out of 2 Fluids that fit 2021 Freightliner MC Lines, the following parts are the top sellers:
- Diesel Exhaust Fluid (DEF): 2.5 Gallon (12434336) – $9.99
- PLATINUM Diesel Exhaust Fluid, 2.5 Gallon (12255182) – $29.99
What’s the price range for 2021 Freightliner MC Line Fluids?
The prices of Fluids for the 2021 Freightliner MC Line range from $9.99 up to $29.99 for the most premium parts.
What is the average price of a Fluids Fluid for a 2021 Freightliner MC Line?
The average price for Fluids for the 2021 Freightliner MC Line is $19.99. Keep in mind the variety of part types within our Fluid category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Fluids for other Freightliner MC Line model years?
What are the cheapest Fluids for my 2021 Freightliner MC Line?
The cheapest 2021 Freightliner MC Line Fluids we carry are:
- Diesel Exhaust Fluid (DEF): 2.5 Gallon (12434336) – $9.99
- PLATINUM Diesel Exhaust Fluid, 2.5 Gallon (12255182) – $29.99
Does Advance Auto Parts sell Fluids for any other 2021 Freightliner models?
Yes. We stock Fluids for 16 other popular 2021 Freightliner models. Some of the most popular are 2021 Sprinter 2500 Fluids, 2021 Sprinter 3500 Fluids, 2021 114SD Fluids, 2021 M2 106 Fluids, and 2021 108SD Fluids.
What types of Fluids do you sell for my 2021 Freightliner MC Line?
We currently have just 1 Fluid in stock for a 2021 Freightliner MC Line, and as of 4/10/25, it is a Diesel Emissions Fluid.
Can I get help with 2021 Freightliner MC Line Fluid orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Freightliner Fluids and more.
What is your return policy for Freightliner MC Line Fluids?
Advance Auto Parts keeps returns simple. For new Freightliner MC Line Fluids and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.