2003 Freightliner FL50 Fuel and Emissions Systems
Find Your Specific 2003 Freightliner FL50 Fuel and Emissions Systems
Below you will find various in-demand Freightliner Fuel and Emissions Systems, components and accessories for your 2003 FL50. Advance Auto Parts has popular FL50 parts like Fuel Sensors, Fuel Injectors, Fuel Pumps and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other FL50 model years including
1996,
1997,
1998,
1999,
2000,
2001,
2002,
2004,
2005 and more. Select a category of 2003 Freightliner FL50 Fuel and Emissions Systems below and start saving instantly.
Popular 2003 Freightliner FL50 Fuel and Emissions Systems Categories
Essential Fuel and Emissions Systems for 2003 Freightliner FL50s
Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86813)
from
$85.99
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
Product Features:
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Product Features:
- Original Equipment Manufacturer (OEM) Design: Designed to meet or exceed OEM performance standards.
- Efficient Water Removal: Separates damaging water and contaminants from fuel to protect sensitive fuel system components.
- Enhances Engine Performance:┐Delivers clean, water-free fuel for optimal combustion and efficiency.
- Rust resistant can, ensuring no leakage from inside
- Made in USA
- Includes Integral Post Seal
Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86406)
from
$42.49
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
Product Features:
See More
Product Features:
- Original Equipment Manufacturer (OEM) Design: Designed to meet or exceed OEM performance standards.
- Efficient Water Removal: Separates damaging water and contaminants from fuel to protect sensitive fuel system components.
- Enhances Engine Performance:┐Delivers clean, water-free fuel for optimal combustion and efficiency.
- Rust resistant can, ensuring no leakage from inside
- Made in USA
- Includes Standpipe
- CAUTION: Furnished D-Ring must be installed on post for seal.
Dorman – HD Solutions – Water In Fuel Sensor (Part No.904-7370)
from
$55.99
This replacement water-in-fuel (WiF) sensor matches the function and performance of the original equipment sensor to prevent water damaging a diesel fuel injector. Made of quality materials, it has undergone extensive testing to ensure durability.
Product Features:
See More
Product Features:
- Ideal replacement – this water-in-fuel (WiF) sensor matches the original equipment sensor’s function and performance
- Durable construction – this sensor is made of durable materials to withstand exposure to diesel fuel
- Cost-effective solution – offers original equipment quality at competitive price
- Quality tested – this part has undergone vehicle try-on and bench testing to ensure a quality fit and long service life
Carquest Premium – HD Fuel Cap (Part No.10611)
from
$53.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
See More
Product Features:
- Protects your fuel from theft and vandalism
- Manufactured from durable, long-life materials
- Independently tested for emission control
- Passes all state and federal emissions tests
- Passes all state and federal emissions tests
- Reduces air pollution with proper sealing and venting
Carquest Premium – Heavy Duty Non-Locking Tethered Fuel Tank Cap (Part No.10602)
from
$49.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – HD Locking Fuel Cap (Part No.10421)
from
$99.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
See More
Product Features:
- Protects your fuel from theft and vandalism
- Protects your fuel from theft and vandalism
- Manufactured from durable, long-life materials
- Independently tested for emission control
- Passes all state and federal emissions tests
- Reduces air pollution with proper sealing and venting
Carquest Premium – Heavy Duty Locking Tethered Fuel Tank Cap (Part No.10412)
from
$57.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
See More
Product Features:
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Dorman – HD Solutions – Fuel Tank Strap (Part No.578-5201)
from
$208.99
Recommended for replacement whenever the fuel tank is replaced or serviced, this strap is a direct replacement for the original. Manufactured from durable materials to withstand harsh road and weather conditions.
Product Features:
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Product Features:
- Direct replacement – this fuel tank strap matches the fit, function and performance of the original part
- Ideal solution – recommended for replacement when the fuel tank is serviced or replaced
- Durable construction – manufactured from quality materials for superior service and reliability
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – HD Solutions – Fuel Injector O-Ring Kit (Part No.904-8056)
from
$54.99
The components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles. They are engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged.
Product Features:
See More
Product Features:
- Direct replacements – the components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles
- Ideal solution – engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged
- Durable construction – designed and manufactured to strict specifications for reliable performance
- Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
Upgrade your 2003 Freightliner FL50 with Top-Quality Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2003 Freightliner FL50, 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 FL50 functioning at its best. At Advance Auto Parts, we offer a wide selection of 7 Fuel and Emissions Systems for the 2003 Freightliner FL50, designed to meet your needs without breaking the bank.
From
Fuel Sensor
replacements to
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 2003 Freightliner FL50 at great prices.
Our Fuel and Emissions Systems inventory for this model
ranges from just $42.49 to $208.99, with
an average price of $102.78.
Our 7 Fuel and Emissions Systems in stock come from 2 trusted brands, so you’re sure to find the right part for your 2003 Freightliner FL50 without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2003 Freightliner FL50, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names
like Carquest Premium, and more.
Carquest Premium Fuel and Emissions Systems
start at just $42.49 and boast an impressive 4.4 stars average rating from customers.
With 1 customer reviews and counting, our 2003 Freightliner FL50 Fuel and Emissions Systems have a strong track record of reliability, ensuring you can trust your purchase.
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 2003 Freightliner FL50 is always ready to roll. We’re committed to providing you with everything you need to keep your FL50 in top shape, all in one place.
Start shopping confidently below for your 2003 Freightliner FL50!
Best-Selling Fuel Sensors for 2003 Freightliner FL50s
Enhance the driving experience in your Freightliner with 1 quality Fuel Sensor components, starting at $55.99.
Dorman – HD Solutions – Water In Fuel Sensor (Part No.904-7370)
from
$55.99
This replacement water-in-fuel (WiF) sensor matches the function and performance of the original equipment sensor to prevent water damaging a diesel fuel injector. Made of quality materials, it has undergone extensive testing to ensure durability.
Product Features:
See More
Product Features:
- Ideal replacement – this water-in-fuel (WiF) sensor matches the original equipment sensor’s function and performance
- Durable construction – this sensor is made of durable materials to withstand exposure to diesel fuel
- Cost-effective solution – offers original equipment quality at competitive price
- Quality tested – this part has undergone vehicle try-on and bench testing to ensure a quality fit and long service life
Most Popular 2003 Freightliner FL50 Fuel Injectors
Customize your Freightliner with 1 Fuel Injectors products
like Fuel Injector O-Ring Kits, all
priced under $54.99.
Dorman – HD Solutions – Fuel Injector O-Ring Kit (Part No.904-8056)
from
$54.99
The components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles. They are engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged.
Product Features:
See More
Product Features:
- Direct replacements – the components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles
- Ideal solution – engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged
- Durable construction – designed and manufactured to strict specifications for reliable performance
- Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
Top Picks for 2003 Freightliner FL50 Fuel Pumps
Upgrade Freightliner FL50s with top-quality Fuel Pumps parts, including 2 OEM and aftermarket selections for your 2003 model.
Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86406)
from
$42.49
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
Product Features:
See More
Product Features:
- Original Equipment Manufacturer (OEM) Design: Designed to meet or exceed OEM performance standards.
- Efficient Water Removal: Separates damaging water and contaminants from fuel to protect sensitive fuel system components.
- Enhances Engine Performance:┐Delivers clean, water-free fuel for optimal combustion and efficiency.
- Rust resistant can, ensuring no leakage from inside
- Made in USA
- Includes Standpipe
- CAUTION: Furnished D-Ring must be installed on post for seal.
Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86813)
from
$85.99
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
Product Features:
See More
Product Features:
- Original Equipment Manufacturer (OEM) Design: Designed to meet or exceed OEM performance standards.
- Efficient Water Removal: Separates damaging water and contaminants from fuel to protect sensitive fuel system components.
- Enhances Engine Performance:┐Delivers clean, water-free fuel for optimal combustion and efficiency.
- Rust resistant can, ensuring no leakage from inside
- Made in USA
- Includes Integral Post Seal
In-Demand Fuel Tanks for 2003 Freightliner FL50s
Select from 1 premium Fuel Tanks parts for your 2003 Freightliner FL50.
Dorman – HD Solutions – Fuel Tank Strap (Part No.578-5201)
from
$208.99
Recommended for replacement whenever the fuel tank is replaced or serviced, this strap is a direct replacement for the original. Manufactured from durable materials to withstand harsh road and weather conditions.
Product Features:
See More
Product Features:
- Direct replacement – this fuel tank strap matches the fit, function and performance of the original part
- Ideal solution – recommended for replacement when the fuel tank is serviced or replaced
- Durable construction – manufactured from quality materials for superior service and reliability
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Most Sold 2003 Freightliner FL50 Gas Caps
Explore our best-selling Freightliner parts for the 2003 FL50 among 2 OEM and aftermarket options starting from $53.99.
Carquest Premium – HD Locking Fuel Cap (Part No.10421)
from
$99.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
See More
Product Features:
- Protects your fuel from theft and vandalism
- Protects your fuel from theft and vandalism
- Manufactured from durable, long-life materials
- Independently tested for emission control
- Passes all state and federal emissions tests
- Reduces air pollution with proper sealing and venting
Carquest Premium – HD Fuel Cap (Part No.10611)
from
$53.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
See More
Product Features:
- Protects your fuel from theft and vandalism
- Manufactured from durable, long-life materials
- Independently tested for emission control
- Passes all state and federal emissions tests
- Passes all state and federal emissions tests
- Reduces air pollution with proper sealing and venting
Top-Rated Fuel and Emissions Systems Brands For Your 2003 Freightliner FL50
Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2003 Freightliner FL50s. Below you’ll find some of our best rated Fuel and Emissions Systems from Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2003 FL50 start at just $42.49 and are rated as high as 4.4 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.
Popular Carquest Premium 2003 Freightliner FL50 Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2003 Freightliner FL50, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. Carquest Premium ticks all of those boxes. We offer a wide selection of Carquest Premium Fuel and Emissions Systems, specifically designed for the 2003 Freightliner FL50. With over 1 Carquest Premium brand Fuel and Emissions Systems in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $42.49. Plus, with over 1 customer reviews and an average rating of 4.4 stars, you can trust that our Carquest Premium Fuel and Emissions Systems will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
from
$42.49
(1)
Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System
“your website said it didn’t fit my truck. news to me as i have been using them for years. called customer serviceand she was very nice and straighted ”
FAQs for 2003 Freightliner FL50 Fuel and Emissions Systems
Which Fuel and Emissions Systems are best-sellers for 2003 Freightliner FL50s?
Out of 7 Fuel and Emissions Systems that fit 2003 Freightliner FL50s, the following parts are the top sellers:
- Fuel Tank Strap (11208740) – $208.99
- Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (10693779) – $85.99
- HD Locking Fuel Cap (10858457) – $99.99
What’s the price range for 2003 Freightliner FL50 Fuel and Emissions Systems?
Fuel and Emissions System prices for the 2003 Freightliner FL50 start at $42.49 and go up to $208.99 for the most premium parts.
What’s the average price of a Fuel and Emissions System for a 2003 Freightliner FL50?
The average price for Fuel and Emissions Systems for the 2003 Freightliner FL50 is $102.78. 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 FL50 model years?
What are the cheapest Fuel and Emissions Systems for my 2003 Freightliner FL50?
The cheapest 2003 Freightliner FL50 Fuel and Emissions Systems we carry in stock are:
- Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (10693599) – $42.49
- HD Fuel Cap (10858550) – $53.99
- Fuel Injector O-Ring Kit (12110288) – $54.99
- Water In Fuel Sensor (50208019) – $55.99
- Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (10693779) – $85.99
What types of Fuel and Emissions Systems do you sell for my 2003 Freightliner FL50?
As of 3/1/26, these are some of the most in-demand types of Fuel and Emissions Systems for a 2003 Freightliner FL50:
Can I get help with 2003 Freightliner FL50 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 FL50 Fuel and Emissions Systems?
Advance Auto Parts keeps returns simple. For new Freightliner FL50 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.
