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Freightliner Classic Diesel Fuel Tanks

Explore top-quality Freightliner Classic fuel tanks at 4 State Trucks, available in sizes ranging from 50 to 150 gallons. Built with corrosion-resistant aluminum, these tanks come in lengths from 57 to 87 inches and diameters of 23 or 24 inches. Choose from front, center, or rear fill configurations, with popular options like 100-gallon front-fill and 150-gallon rear-fill models designed for durability and compatibility.
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  • Fuel Pressure Sensor Harness

    Fuel Pressure Sensor Harness

    JML KUSTOMS

    $20.18
    Fuel Sensor HarnessThis fuel sensor harness is built with 16 AWG nylon/copper wiring and includes heat-shrink butt connectors and expandable sleeving for a sealed, corrosion-resistant installation...
    09-160300021
    SKU:
    09-160300021
    Material Options:
    Copper
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $20.18
    Qty in Cart: 0
    Price:
    $20.18
    Subtotal:
  • BESTfit Aluminum Fuel Tank 140 Gallon 23 X 84 Inch- W/Out Neck- Driver Side For Freightliner Classic, Century, Columbia, FLC

    BESTfit Aluminum Fuel Tank 140 Gallon 23 X 84 Inch- W/Out Neck- Driver Side For Freightliner Classic, Century, Columbia, FLC

    BESTFIT TRUCK PARTS

    $992.99
    Driver Side 140 Gallon 23 X 84 Inch Aluminum Fuel Tank- W/Out Neck By BESTfit* High Quality Tank* Dimensions:  - 23 Inch Diameter   - 84 Inch Length * Driver Side * No Neck* Sold Individually*...
    03-060014009
    SKU:
    03-060014009
    Diameter Options:
    23 Inch
    Length Options:
    84 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Freightliner
    Position:
    Driver Side
    Product Type:
    Fuel Tanks
    $992.99
    Qty in Cart: 0
    Price:
    $992.99
    Subtotal:
  • 50 Gallon Aluminum Side Mount Reservoir With Rear Ports

    50 Gallon Aluminum Side Mount Reservoir With Rear Ports

    BUYERS PRODUCTS

    $1,328.99
    50 Gallon Reservoir W/ Rear PortsThis lightweight, corrosion-resistant aluminum reservoir features dual 2-inch NPT rear ports and internal baffles to reduce sloshing and control temperatures. It...
    09-02500057
    SKU:
    09-02500057
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Position:
    Center Fill
    Capacity:
    50 Gallons
    Product Type:
    Fuel Tanks
    Type Options:
    Center Fill
    $1,328.99
    Qty in Cart: 0
    Price:
    $1,328.99
    Subtotal:
  • BESTfit Aluminum Fuel Tank 80 Gallon- 25 X 38.5 Inch- Front Fill For Freightliner Cascadia, Century, Coronado, Columbia

    BESTfit Aluminum Fuel Tank 80 Gallon- 25 X 38.5 Inch- Front Fill For Freightliner Cascadia, Century, Coronado, Columbia

    BESTFIT TRUCK PARTS

    $764.99
    This BestFit Fuel Tank is manufactured to OE specifications with the same materials as used in OE manufacturing, is rigorously tested under FMSCA regulations and ISO certified. We're so confident in...
    PPR_22015
    SKU:
    PPR_22015
    Capacity:
    80 Gallons
    Length Options:
    36 Inch
    Position:
    Front Fill
    Truck Class:
    Heavy Duty
    Diameter Options:
    25 Inch
    Material Options:
    Aluminum
    Shape Options:
    Cylindrical
    Make:
    Freightliner
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    Position:
    Passenger Side
    Position:
    Driver Side
    Type Options:
    Front Fill
    Size Options:
    11 Gauge
    $764.99
    Qty in Cart: 0
    Price:
    $764.99
    Subtotal:
  • BESTfit Aluminum Fuel Tank 120 Gallon- 25 X 60 Inch- Front Fill For Freightliner

    BESTfit Aluminum Fuel Tank 120 Gallon- 25 X 60 Inch- Front Fill For Freightliner

    BESTFIT TRUCK PARTS

    $968.99
    This BestFit Fuel Tank is manufactured to OE specifications with the same materials as used in OE manufacturing, is rigorously tested under FMSCA regulations and ISO certified. We're so confident in...
    PPR_22010
    SKU:
    PPR_22010
    Diameter Options:
    25 Inch
    Length Options:
    58 Inch
    Truck Class:
    Heavy Duty
    Capacity:
    120 Gallons
    Position:
    Front Fill
    Material Options:
    Aluminum
    Shape Options:
    Cylindrical
    Make:
    Freightliner
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    Position:
    Passenger Side
    Position:
    Driver Side
    Type Options:
    Front Fill
    Size Options:
    11 Gauge
    $968.99
    Qty in Cart: 0
    Price:
    $968.99
    Subtotal:
  • Smooth Steel 45 Gallon Rectangle Transfer Tank

    Smooth Steel 45 Gallon Rectangle Transfer Tank

    AFTERMARKET

    $644.99
    Choose Option(s) to see description.Fitment** Fits Chevrolet Silverado 1500 ** Fits Chevrolet Silverado 1500 Classic ** Fits Chevrolet Silverado 1500 LD ** Fits Chevrolet Silverado 1500 LTD ** Fits...
    PPR_205421
    SKU:
    PPR_205421
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Height Options:
    19 Inch
    Width Options:
    10 Inch
    Length Options:
    54 Inch
    Color:
    White
    Product Type:
    Fuel Tanks
    Color:
    Black
    Material Options:
    Steel
    $644.99
    Qty in Cart: 0
    Price:
    $644.99
    Subtotal:
  • Smooth Steel Hammerhead-Style 100 Gallon L-Shape Transfer Tank

    Smooth Steel Hammerhead-Style 100 Gallon L-Shape Transfer Tank

    AFTERMARKET

    $950.99
    The Top Hat Ring Only for Steel Wheel is a practical replacement component designed to restore the appearance of heavy-duty truck wheels. Engineered for steel wheels, this replacement top hat ring is...
    PPR_204482
    SKU:
    PPR_204482
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Color:
    White
    Product Type:
    Fuel Tanks
    Height Options:
    13 Inch
    Color:
    Black
    Width Options:
    47 Inch
    Length Options:
    58 Inch
    $950.99
    Qty in Cart: 0
    Price:
    $950.99
    Subtotal:
  • Diamond Plate Aluminum Hammerhead-Style 100 Gallon L-Shape Transfer Tank

    Diamond Plate Aluminum Hammerhead-Style 100 Gallon L-Shape Transfer Tank

    AFTERMARKET

    $1,399.99 - $1,555.99
    Choose Option(s) to see description.Fitment** Fits Chevrolet Silverado 1500 2004 thru 2006 With Crew Cab** Fits Chevrolet Silverado 1500 1999 thru 2013 With Extended Cab** Fits Chevrolet Silverado...
    PPR_204464
    SKU:
    PPR_204464
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Size Options:
    33 mm
    Make:
    Universal Items
    Style Options:
    Standard
    Color:
    Black
    Material Options:
    Aluminum
    Finish Options:
    Diamond Plate
    Length Options:
    58 Inch
    Product Type:
    Fuel Tanks
    Height Options:
    24 Inch
    Width Options:
    12 Inch
    $1,399.99 - $1,555.99
    Qty in Cart: 0
    Price:
    $1,399.99 - $1,555.99
    Subtotal:
  • Carbon Steel 53 Gallon Transfer Tank Compatible W/ Most Short Bed Trucks & Gooseneck Hitches

    Carbon Steel 53 Gallon Transfer Tank Compatible W/ Most Short Bed Trucks & Gooseneck Hitches

    AFTERMARKET

    $716.99
    Secure heavy loads using this Grade 70 yellow zinc-plated clevis grab hook for transport binder safety chains. Made from high-strength forged steel and finished with a durable yellow zinc coating,...
    PPR_204006
    SKU:
    PPR_204006
    Location:
    Made In USA
    Truck Class:
    Universal
    Color:
    Yellow
    Material Options:
    Steel
    Make:
    Universal Items
    Height Options:
    24 Inch
    Color:
    White
    Length Options:
    24 Inch
    Width Options:
    24 Inch
    Color:
    Black
    Product Type:
    Fuel Tanks
    $716.99
    Qty in Cart: 0
    Price:
    $716.99
    Subtotal:
  • BESTfit Aluminum Fuel Tank 140 Gallon- 23 X 84 Inch- Front Fill For Freightliner Columbia/Classic/FLD/FLC

    BESTfit Aluminum Fuel Tank 140 Gallon- 23 X 84 Inch- Front Fill For Freightliner Columbia/Classic/FLD/FLC

    BESTFIT TRUCK PARTS

    $1,050.99
    The BESTfit Aluminum Fuel Tank 140 Gallon 23??84?Inch - Front Fill from 4 State Trucks is a high-quality, heavy-duty replacement fuel tank designed for Freightliner trucks that use a 140 gallon...
    PPR_1299
    SKU:
    PPR_1299
    Capacity:
    140 Gallons
    Truck Class:
    Heavy Duty
    Position:
    Front Fill
    Diameter Options:
    23 Inch
    Shape Options:
    Cylindrical
    Material Options:
    Aluminum
    Make:
    Freightliner
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    Position:
    Passenger Side
    Position:
    Driver Side
    Type Options:
    Front Fill
    Size Options:
    11 Gauge
    $1,050.99
    Qty in Cart: 0
    Price:
    $1,050.99
    Subtotal:
  • BESTfit Aluminum Auxiliary Fuel Tank 45 Gallon- 19 X 36 Inch- Front Fill

    BESTfit Aluminum Auxiliary Fuel Tank 45 Gallon- 19 X 36 Inch- Front Fill

    BESTFIT TRUCK PARTS

    $750.99
    45 Gallon 19 X 36 Inch Aluminum Auxiliary Fuel Tank- Front Fill By BESTfitThis 19 X 36 Inch 45 Gallon BESTfit Front Fill Fuel Tank Is Manufactured To OE Specifications With The Same Materials As Used...
    09-0600045
    SKU:
    09-0600045
    Capacity:
    45 Gallons
    Position:
    Front Fill
    Diameter Options:
    19 Inch
    Truck Class:
    Universal
    Shape Options:
    Cylindrical
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Fuel Tanks
    Length Options:
    38 Inch
    Size Options:
    11 Gauge
    Type Options:
    Front Fill
    Ready To Ship:
    Yes
    $750.99
    Qty in Cart: 0
    Price:
    $750.99
    Subtotal:
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Shop Premium Freightliner Classic Fuel Tanks & Accessories

This product lineup includes a wide range of Freightliner fuel tanks that have various width and length options and fill positions (center fill, front fill, or side fill). Key features include sturdy aluminum construction, a baffled weld design, and fuel storage capacity options up to 140 gallons. Regardless of the make or model, these fuel tanks deliver superior performance, enhanced fuel economy, and a clean, streamlined appearance for your Freightliner Classic, Century, Columbia, or FLC. Enhance the functionality and aesthetic of your truck with the best-fitting Freightliner diesel fuel tank from this comprehensive product lineup.

Frequently Asked Questions About Freightliner Classic Diesel Fuel Tanks

Will this fuel tank fit my Freightliner Classic?

Fuel tanks vary by capacity, diameter, strap spacing, and mounting configuration, so it is important to verify these specs against your truck's original tank before ordering. Checking your VIN or measuring your current tank's dimensions, capacity, and bracket spacing will help ensure proper fit. If you are unsure, reach out to our team with your truck's details and we can help confirm compatibility.

What materials are these fuel tanks made from, and how do they hold up over time?

Freightliner Classic fuel tanks are typically made from aluminum or steel. Aluminum tanks are lighter and naturally resistant to rust, while steel tanks tend to be more rugged but may require additional coating or paint to prevent corrosion. Choosing the right material often comes down to weight considerations versus long-term durability preferences for your specific application.

How do I know what size or capacity fuel tank I need?

Capacity needs depend on your typical routes, fuel stop availability, and how much weight your operation can accommodate. Common capacities for Freightliner Classic tanks range widely, so it helps to know your current tank's gallon rating and whether you want to maintain, increase, or decrease that capacity with your replacement.

What is involved in installing a replacement fuel tank?

Installation generally involves draining and disconnecting the old tank, removing the mounting straps and brackets, transferring or replacing fuel lines and sending units, and securing the new tank in place. Because fuel systems involve pressurized lines and potential fire hazards, many owners choose to have installation performed by a qualified technician rather than attempting it without diesel fuel system experience.

Do these fuel tanks come with mounting straps, brackets, or sending units included?

This varies by product listing, as some tanks are sold as a bare tank only while others may include straps or mounting hardware. Always check the specific product description for what is included, and if your sending unit or straps are still in good condition, you may be able to reuse them with a compatible replacement tank.


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