2006 Freightliner Classic Fuel and Emissions Systems

Essential Fuel and Emissions Systems for 2006 Freightliner Classics

Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86651XE)

Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System

from

$45.99
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:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Made in USA
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Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86604)

Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System

from

$83.99
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:
  • CAUTION: Furnished O-Ring must be installed on post for seal. For use with Deutz square sensor. NOT Interchangeable with 86422.
  • Sensor Port Thread: M14 x 2.0; Standpipe
  • Includes Standpipe. Sensor Port Thread: M14 x 2.0
  • CAUTION: Furnished O-Ring must be installed on post for seal. For use with Deutz square sensor.
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Carquest Premium – HD Fuel Cap (Part No.10612)

HD Fuel Cap

from

$84.99
Product Features:
  • 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
  • Independently tested for emission control
See More

Carquest Premium – HD Locking Fuel Cap (Part No.10421)

HD Locking Fuel Cap

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:
  • 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
See More

Carquest Premium – HD Locking Fuel Cap (Part No.10422)

HD Locking Fuel Cap

from

$205.99
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:
  • Protects your fuel from theft and vandalism
  • 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
See More

Carquest Premium – HD Fuel Cap (Part No.10611)

HD Fuel Cap

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:
  • 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
See More

Delphi – Fuel Injector (Part No.EX631763)

Fuel Injector

from

$439.99
Delphi knows OE technology and how to service diesel systems. For more than 60 years, we have partnered with 25 OEM’s to bring our OE diesel powertrain knowledge and expertise to the aftermarket. Delphi diesel systems operate at high performance to meet today’s tough emissions standards and are built to OE specifications for the fit, form, and function technicians expect. Trust Delphi for an unrivalled, cost-effective diesel program to help build your business.

Product Features:
  • 100% O Ring replacement
  • All Delphi injectors are tested utilizing OE methodologies
  • Delphi injectors are produced in a Delphi ISO 9001:2008 certified facility
  • No internal seal rings equals minimized leakage
  • Recessed fuel exit minimizing possible plugging
  • Reduced spray variation, accurate fuel spray pattern mean better emissions and cold start capabilities
  • Thermally isolates fuel from engine by drawing manifold heat away from the fuel rail eliminating engine hesitation due to vapor lock
See More

Cardone – Fuel Injector (Part No.2J-702)

Fuel Injector

from

$304.99
CARDONE Remanufactured Fuel Injectors provide an alternative plug and play solution to fuel delivery for diesel applications. All units are flow tested and balanced and replaced with new O-rings and gaskets. Each unit retains OEM duty cycle and pulse width ensuring reliable performance. All units are built to meet or exceed OEM performance, providing a quality product both you and your vehicle can rely on.

Product Features:
  • All gaskets, O-rings and bearings are replaced 100 percent to ensure optimal performance
  • Each assembled unit is individually calibrated and tested to ensure it meets or exceeds O.E.M. form, fit and function
  • All components are renewed or replaced as necessary to ensure high quality and durability
  • When applicable, improvements based on typical failure modes of original units are incorporated into the design and manufacture of replacement component parts, which translates into longer service life and less down-time for the driver
  • Guaranteed fit and function
  • Meets or exceeds O.E.M. performance.
See More

Delphi – Fuel Injector (Part No.EX631767)

Fuel Injector

from

$439.99
Delphi knows OE technology and how to service diesel systems. For more than 60 years, we have partnered with 25 OEM’s to bring our OE diesel powertrain knowledge and expertise to the aftermarket. Delphi diesel systems operate at high performance to meet today’s tough emissions standards and are built to OE specifications for the fit, form, and function technicians expect. Trust Delphi for an unrivalled, cost-effective diesel program to help build your business.

Product Features:
  • 100% O Ring replacement
  • All Delphi injectors are tested utilizing OE methodologies
  • Delphi injectors are produced in a Delphi ISO 9001:2008 certified facility
  • No internal seal rings equals minimized leakage
  • Recessed fuel exit minimizing possible plugging
  • Reduced spray variation, accurate fuel spray pattern mean better emissions and cold start capabilities
  • Thermally isolates fuel from engine by drawing manifold heat away from the fuel rail eliminating engine hesitation due to vapor lock
See More

Cardone – Fuel Injector (Part No.2J-703)

Fuel Injector

from

$426.99
CARDONE Remanufactured Fuel Injectors provide an alternative plug and play solution to fuel delivery for diesel applications. All units are flow tested and balanced and replaced with new O-rings and gaskets. Each unit retains OEM duty cycle and pulse width ensuring reliable performance. All units are built to meet or exceed OEM performance, providing a quality product both you and your vehicle can rely on.

Product Features:
  • All gaskets, O-rings and bearings are replaced 100 percent to ensure optimal performance
  • Each assembled unit is individually calibrated and tested to ensure it meets or exceeds O.E.M. form, fit and function
  • All components are renewed or replaced as necessary to ensure high quality and durability
  • When applicable, improvements based on typical failure modes of original units are incorporated into the design and manufacture of replacement component parts, which translates into longer service life and less down-time for the driver
  • Guaranteed fit and function
  • Meets or exceeds O.E.M. performance.
See More

Cardone – Fuel Injector (Part No.2J-705)

Fuel Injector

from

$305.99
CARDONE Remanufactured Fuel Injectors provide an alternative plug and play solution to fuel delivery for diesel applications. All units are flow tested and balanced and replaced with new O-rings and gaskets. Each unit retains OEM duty cycle and pulse width ensuring reliable performance. All units are built to meet or exceed OEM performance, providing a quality product both you and your vehicle can rely on.

Product Features:
  • All gaskets, O-rings and bearings are replaced 100 percent to ensure optimal performance
  • Each assembled unit is individually calibrated and tested to ensure it meets or exceeds O.E.M. form, fit and function
  • All components are renewed or replaced as necessary to ensure high quality and durability
  • When applicable, improvements based on typical failure modes of original units are incorporated into the design and manufacture of replacement component parts, which translates into longer service life and less down-time for the driver
  • Guaranteed fit and function
  • Meets or exceeds O.E.M. performance.
See More

Dorman – HD Solutions – Fuel Pressure Sensor (Part No.904-7018)

Fuel Pressure Sensor

from

$131.99
This fuel pressure sensor is designed to match the fit and function of the original sensor on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this fuel pressure sensor is designed to match the fit and function of the original sensor on specified vehicle
  • Ideal solution – this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
  • Durable construction – this sensor is made from quality components to ensure reliable performance and a 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 – Air Temperature Sensor (Part No.904-7324)

Air Temperature Sensor

from

$51.99
This exhaust gas recirculation (EGR) temperature sensor is designed to match the function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:
  • Direct replacement – this EGR valve temperature sensor is designed to match the fit and function of an original sensor on specified vehicles
  • Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
  • 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
See More

Dorman – HD Solutions – Fuel Tank Strap (Part No.578-5201)

Fuel Tank Strap

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:
  • 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
See More

Upgrade your 2006 Freightliner Classic with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2006 Freightliner Classic, 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 Classic functioning at its best. At Advance Auto Parts, we offer a wide selection of 10 Fuel and Emissions Systems for the 2006 Freightliner Classic, designed to meet your needs without breaking the bank. From Fuel Pump replacements to Exhaust Gas Recirculation (EGR) Parts 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 2006 Freightliner Classic at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $45.99 to $305.99, with an average price of $138.22. Our 10 Fuel and Emissions Systems in stock come from 3 trusted brands, so you’re sure to find the right part for your 2006 Freightliner Classic 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 2006 Freightliner Classic is always ready to roll. We’re committed to providing you with everything you need to keep your Classic in top shape, all in one place. Start shopping confidently below for your 2006 Freightliner Classic!

Best-Selling Fuel Pumps for 2006 Freightliner Classics

Enhance the driving experience in your Freightliner with 1 quality Fuel Pump components, starting at $45.99.

Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86651XE)

Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System

from

$45.99
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:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Made in USA
See More

Most Popular 2006 Freightliner Classic Exhaust Gas Recirculation (EGR) Parts

Customize your Freightliner with 1 Exhaust Gas Recirculation (EGR) Parts products like EGR Valve Temperature Sensors, all priced under $51.99.

Dorman – HD Solutions – Air Temperature Sensor (Part No.904-7324)

Air Temperature Sensor

from

$51.99
This exhaust gas recirculation (EGR) temperature sensor is designed to match the function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:
  • Direct replacement – this EGR valve temperature sensor is designed to match the fit and function of an original sensor on specified vehicles
  • Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
  • 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
See More

Top Picks for 2006 Freightliner Classic Gas Caps

Upgrade Freightliner Classics with top-quality Gas Caps parts, including 4 OEM and aftermarket selections for your 2006 model.

Carquest Premium – HD Locking Fuel Cap (Part No.10422)

HD Locking Fuel Cap

from

$205.99
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:
  • Protects your fuel from theft and vandalism
  • 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
See More

Carquest Premium – HD Locking Fuel Cap (Part No.10421)

HD Locking Fuel Cap

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:
  • 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
See More

Carquest Premium – HD Fuel Cap (Part No.10612)

HD Fuel Cap

from

$84.99
Product Features:
  • 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
  • Independently tested for emission control
See More

Carquest Premium – HD Fuel Cap (Part No.10611)

HD Fuel Cap

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:
  • 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
See More

In-Demand Fuel Injectors for 2006 Freightliner Classics

Select from 2 premium Fuel Injectors parts for your 2006 Freightliner Classic, with prices ranging from $304.99 to $305.99.

Cardone – Fuel Injector (Part No.2J-705)

Fuel Injector

from

$305.99
CARDONE Remanufactured Fuel Injectors provide an alternative plug and play solution to fuel delivery for diesel applications. All units are flow tested and balanced and replaced with new O-rings and gaskets. Each unit retains OEM duty cycle and pulse width ensuring reliable performance. All units are built to meet or exceed OEM performance, providing a quality product both you and your vehicle can rely on.

Product Features:
  • All gaskets, O-rings and bearings are replaced 100 percent to ensure optimal performance
  • Each assembled unit is individually calibrated and tested to ensure it meets or exceeds O.E.M. form, fit and function
  • All components are renewed or replaced as necessary to ensure high quality and durability
  • When applicable, improvements based on typical failure modes of original units are incorporated into the design and manufacture of replacement component parts, which translates into longer service life and less down-time for the driver
  • Guaranteed fit and function
  • Meets or exceeds O.E.M. performance.
See More

Cardone – Fuel Injector (Part No.2J-702)

Fuel Injector

from

$304.99
CARDONE Remanufactured Fuel Injectors provide an alternative plug and play solution to fuel delivery for diesel applications. All units are flow tested and balanced and replaced with new O-rings and gaskets. Each unit retains OEM duty cycle and pulse width ensuring reliable performance. All units are built to meet or exceed OEM performance, providing a quality product both you and your vehicle can rely on.

Product Features:
  • All gaskets, O-rings and bearings are replaced 100 percent to ensure optimal performance
  • Each assembled unit is individually calibrated and tested to ensure it meets or exceeds O.E.M. form, fit and function
  • All components are renewed or replaced as necessary to ensure high quality and durability
  • When applicable, improvements based on typical failure modes of original units are incorporated into the design and manufacture of replacement component parts, which translates into longer service life and less down-time for the driver
  • Guaranteed fit and function
  • Meets or exceeds O.E.M. performance.
See More

Most Sold 2006 Freightliner Classic Fuel Tanks

Explore our best-selling Freightliner parts for the 2006 Classic among 1 OEM and aftermarket options starting from $208.99.

Dorman – HD Solutions – Fuel Tank Strap (Part No.578-5201)

Fuel Tank Strap

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:
  • 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
See More

FAQs for 2006 Freightliner Classic Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2006 Freightliner Classics?

Out of 10 Fuel and Emissions Systems that fit 2006 Freightliner Classics, the following parts are the top sellers:

What’s the price range for 2006 Freightliner Classic Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2006 Freightliner Classic start at $45.99 and go up to $305.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2006 Freightliner Classic?

The average price for Fuel and Emissions Systems for the 2006 Freightliner Classic is $138.22. 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 Classic model years?

Yes, we currently carry Fuel and Emissions Systems for 9 model years of Freightliner Classics between 2001 and 2011. Fuel and Emissions Systems are bought most frequently for the following model years: 2011, 2010, 2009, 2008, 2007, 2005, 2004, 2003, and 2002.

What are the cheapest Fuel and Emissions Systems for my 2006 Freightliner Classic?

The cheapest 2006 Freightliner Classic Fuel and Emissions Systems we carry in stock are:

What types of Fuel and Emissions Systems do you sell for my 2006 Freightliner Classic?

As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2006 Freightliner Classic:

Can I get help with 2006 Freightliner Classic 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 Classic Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Freightliner Classic 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.