null

Freightliner FLC112 Diesel Fuel Tanks

Get more miles in without having to stop with a bigger Freightliner FLC 112 diesel fuel tank. Shop our selection of custom and aftermarket fuel tanks in a variety of sizes and styles. Find the perfect fuel tank that fits your Freightliner and your budget at 4 State Trucks.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • 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- Passenger Side For Freightliner Century, Columbia, FLC

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

    BESTFIT TRUCK PARTS

    $992.99
    Passenger 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* Passenger Side* No Neck* Sold Individually*...
    03-060014010
    SKU:
    03-060014010
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Freightliner
    Position:
    Passenger Side
    Product Type:
    Fuel Tanks
    $992.99
    Qty in Cart: 0
    Price:
    $992.99
    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 110 Gallon-23 X 60 Inch- Front Fill For Freightliner

    BESTfit Aluminum Fuel Tank 110 Gallon-23 X 60 Inch- Front Fill For Freightliner

    BESTFIT TRUCK PARTS

    $827.99
    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 are so confident in...
    PPR_2487
    SKU:
    PPR_2487
    Length Options:
    58 Inch
    Capacity:
    110 Gallons
    Position:
    Front Fill
    Diameter Options:
    23 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Shape Options:
    Cylindrical
    Make:
    Freightliner
    Product Type:
    Fuel Tanks
    Position:
    Driver Side
    Length Options:
    60 Inch
    Size Options:
    11 Gauge
    Type Options:
    Front Fill
    Position:
    Passenger Side
    Ready To Ship:
    Yes
    $827.99
    Qty in Cart: 0
    Price:
    $827.99
    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 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:
  • Total: items /

Adding your products to cart

Freightliner FLC112 Diesel Fuel Tanks offer a variety of capacities and configurations to meet the fuel storage needs of Freightliner trucks. These fuel tanks provide ample on-board fuel capacity for long-haul journeys, helping to minimize the need for frequent refueling stops. Available in popular sizes like 50, 75, 110, and 140 gallons, the tanks are constructed from durable aluminum materials for long-lasting performance. Many feature front-fill designs for easy access, while others offer side or bottom-mounted setups. Whether you need a replacement tank or an auxiliary fuel source, the Freightliner FLC112 line has a solution to keep your truck powered and on the road.

Frequently Asked Questions About Freightliner FLC112 Diesel Fuel Tanks

Will a replacement fuel tank fit my Freightliner FLC112 without modification?

Most aftermarket and take-off diesel fuel tanks for the FLC112 are designed to match factory mounting points and strap locations, but tank capacity, shape, and mounting configuration can vary by model year and original equipment setup. Its important to confirm tank dimensions, mounting hole spacing, and neck/fitting placement against your truck's specifications before purchasing to avoid fitment issues.

What materials are these fuel tanks made from, and does it affect durability?

Diesel fuel tanks for the FLC112 are typically constructed from aluminum or steel. Aluminum tanks are lighter and naturally corrosion resistant, while steel tanks tend to be heavier but can offer added durability in certain applications. The right choice often depends on your priorities around weight savings versus long-term resistance to road debris and rust.

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

Tank capacity is usually measured in gallons and should match or reasonably align with your original tank to maintain proper fuel range and balance on the frame rail. Check your existing tank's capacity rating, physical dimensions, and mounting strap spacing so the replacement tank integrates properly with your fuel lines and mounting hardware.

Are the fittings, sending unit ports, and mounting straps included with the tank?

This varies by listing. Some tanks come as a bare shell only, while others may include fittings, sending unit ports, or mounting straps. Always check the product description carefully to confirm what is included, since you may need to transfer over your existing sending unit, cap, or straps from the old tank.

Do I need a professional to install a replacement diesel fuel tank?

While experienced DIY mechanics with the right lifting equipment and tools can handle fuel tank replacement, it involves working with fuel lines, straps, and a heavy component that must be properly secured to the frame. If you are not confident in safely supporting the tank during removal and installation or handling fuel system connections, having a qualified diesel technician perform the job is recommended.


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!